Token authentication

The Onfido API uses token-based authentication. API tokens must be included in the header of all requests made to the API.

You can generate new tokens and find your existing ones in your Onfido Dashboard.

You can make requests using sandbox tokens to test our API before you go live.

Rate limits

Onfido's API enforces a maximum volume of requests per second for all clients. Unless contractually agreed otherwise, the maximum rate is 400 requests per minute (up to 7 requests per second with a burst of 14 requests).

For sandbox requests, the rate limit is 30 requests per minute (up to 1 request per second with a burst of 2 requests).

Onfido uses the token bucket algorithm to handle usage.

Any request over the limit will return a 429 Too Many Requests error.

Onfido offers region-specific environments: EU, US, and Canada. You can use these to store the data in your Onfido account at rest within a specific geographic region.

Regions have unique base URLs and API token formats for both live and sandbox environments.

Example error object

Applicant object

ID number object

The ID number array of objects is nested inside the applicant object.

Address object

The applicant address object is nested inside the applicant object.

postcode and country are required fields if an address is provided for an applicant. For US addresses, state is also a required field.

Most addresses will contain information such as flat_number. Make sure they are supplied as separate fields, and do not try and fit them all into the street field. Doing so is likely to affect check performance.

Alternatively, you can provide addresses in the form line1, line2 and line3 if you're creating a check with an Identity Enhanced report. If you provide address data in this form, Onfido uses a third-party subprocessor for address cleansing.

Location object

The location object is nested inside the applicant object.

If country_of_residence is not provided in the request, it will be inferred from the IP address which may result in an incorrect value.

If you submitted location during document upload, it will not be returned here.

Forbidden characters

For addresses the following characters are forbidden:

!$%^*=<>

For names the following characters are forbidden:

^!#$%*=<>;{}"

Create applicant

Creates a single applicant. Returns an applicant object.

When you create an applicant, some characters are forbidden. You should remove any duplicate whitespaces before creating an applicant, otherwise this may result in a data comparison failure.

The minimum required (and recommended) applicant data depends on the type of report requested. For example, for Document reports.

Request body parameters

location

You must provide location information for each end user as this determines the necessary consent required in order to process a verification.

You can specify either or both the IP address and the country of residence (3 character ISO country code) of the applicant in the location object.

...
"location": {
        "ip_address": "127.0.0.1",
        "country_of_residence": "GBR"
    }
...

You can also provide location information during document upload.

If you submit location information in multiple requests, the document upload location will take precedence.

consents

Where required, you must collect end user consent before creating a check with Onfido. If you do not, Onfido is unable to process an applicant's data and complete a verification.

Exact consent requirements are linked to the location of the end user and the report type. You must specify an applicant's location in the location parameter when creating an applicant or uploading a document.

• privacy_notices_read

End users located in the United States, must read the Privacy Notices and Terms of Service before giving consent for Onfido.

granted should be set to true after gaining the necessary consent from the applicant. If it's set to false, or the parameter is not provided, all check creation requests will fail with a validation error.

• ssn_verification

End users must give consent to process their Social Security Number (SSN) before you can submit an Identity Enhanced report.

granted should be set to true after gaining the necessary consent from the applicant. If it's set to false, or the parameter is not provided, SSN reports will fail with a validation error.

• phone_number_verification

End users must give consent to process their phone number before you can submit a Phone Verification report.

granted should be set to true after gaining the necessary consent from the applicant. If it's set to false, or the parameter is not provided, Phone Verification reports will fail with a validation error.

...
"consents": [
         {
            "name": "privacy_notices_read",
            "granted": true
        },
        {
            "name": "ssn_verification",
            "granted": true
        },
        {
            "name": "phone_number_verification",
            "granted": true
        }
    ]
...

You can also provide consents when updating an applicant.

Document object

Retrieve document

Retrieves a single document. Returns a document object.

Live photo object

Live video object

During the video recording end users are asked to perform randomly generated actions, represented in challenge. Challenges always have 2 parts recite and movement, but the order in which these happen can vary. The order of the challenges is maintained in the live video object. recite asks the user to say 3 randomly generated digits, whereas movement asks the user to look over their right or left shoulder.

Download live video frame

Instead of the whole video, a single frame can be downloaded using this endpoint. Returns the binary data representing the frame.

This will be the frame extracted from the video where the end user is facing the camera. If no face can be detected, it will fallback to the first frame of the video.

Frame extraction failed

If a frame cannot be extracted from the live video, a frame_extraction_failed response will be returned.

Frame extraction unavailable

If the extraction feature is temporarily unavailable, a frame_extraction_unavailable response will be returned instead.

Check object

Check status

Motion capture object

Download motion capture frame

Instead of the whole motion capture data, a single frame can be downloaded using this endpoint. Returns the binary data representing the frame.

Frame extraction failed

If a frame cannot be extracted from the motion capture, a frame_extraction_failed response will be returned.

Frame extraction unavailable

If the extraction feature is temporarily unavailable, a frame_extraction_unavailable response will be returned instead.

Monitor object

Output object

Workflow output data is a configurable set of properties which allows you to add any specific data attribute contained within a Workflow. Workflow Output information must be first created as a property in Studio using the Workflow input and output configuration tab. Once the properties are created then these need to be mapped on the end tasks. This gives full flexibility to add as little or as much detailed information to the Retrieve Workflow Run endpoint.

This is the recommended method to integrate with our API to get information into your systems.

Reasons

Workflow reasons are set during Workflow creation in Studio. Each end task can have one or more reasons configured by the user. This provides the flexibility to capture more information about why an end user reached a specific end state.

For example, if a workflow contains multiple approval end tasks, the reasons field can be used to clearly identify which path the end user completed.

Error object

Error object that details why a Workflow Run is in Error status.

Link object

Object for the configuration of the Workflow Run link.

Document report: Object

We host a separate page which contains a detailed description of the Document report object values from an API user's perspective.

Results

The result field indicates the overall report result. Possible values for Document reports are clear and consider:

Sub-results

The sub_result field indicates a more detailed result, and is unique to Document reports. Possible values of sub_result are as follows:

Document report: Breakdowns

Breakdowns can have the values clear, consider and null.

A breakdown will have the result consider when at least one sub-breakdown contains a consider or unidentified result. For example, a consider result for the mrz sub-breakdown will produce a consider result for the data_validation breakdown. This will then also set the report sub_result value to suspected.

A breakdown will have the result null when it has not been completed, or is not available. For example, issuing_authority will return null if NFC is not available or inconclusive.

Some breakdowns contain sub-breakdowns. For example, the image_integrity breakdown comprises the sub-breakdowns supported_document, image_quality, colour_picture and conclusive_document_quality.

The possible values for sub-breakdowns are clear, consider, null and unidentified.

Breakdown order priority

Breakdown sub-results have the following order of priority:

rejected->suspected->caution->clear

For example, a caution sub-result will only ever be asserted when the following conditions are met:

• no individual breakdown has caused a rejected or suspected sub-result
• a breakdown which maps to a caution sub-result has been flagged

Breakdown mapping

Breakdowns and sub-breakdowns are mapped to particular sub-results. Certain mappings can be changed, where possible, depending on your configuration.

Note: Some breakdowns have sub-breakdowns that are mapped to different sub-results. For example, in the Data Validation breakdown, gender, document_numbers, expiry_date, date_of_birth, mrz and barcode map to suspected whereas document_expiration maps to caution.

Note: When a sub-breakdown mapped to a rejected sub-result is flagged, all other breakdowns and the document properties will be omitted from the response object.

Breakdown descriptions and logic

data_comparison:

Establishes whether the data provided by the applicant matches the data extracted from the document. This breakdown is only returned if Comparison Checks are enabled for your account. Otherwise, the breakdown and its sub-breakdowns are returned as null and will not affect the final report result. To enable Comparison Checks, please contact Client Support.

We compare the following fields:

• first_name
• last_name
• date_of_birth
• gender

first_name and last_name can be configured to use a fuzzy or exact mechanism for the comparison. We take into account all available names for comparison, including spouse, widow or alias names.

date_of_birth and gender will always be compared using an exact mechanism.

Fuzzy comparison allows for greater flexibility during comparison, catering for discrepancies which may occur, for example, when an applicant uses their middle or spouse name, or there's been an extraction error.

Note:

• When an applicant hasn’t provided data the sub-breakdown result is null for the missing field
• When an applicant has provided names but names have not been extracted from the document, the sub-breakdown result is consider
• When an applicant has provided date of birth and/or gender, but these fields have not been extracted from the document, the sub-breakdown result is null

data_validation:

Asserts whether the format and length of the fields are correct for that document type. Uses the following sub-breakdowns:

• gender
• date_of_birth
• document_numbers
• document_expiration ¹
• expiry_date ²
• mrz
• barcode

1. If this is flagged, the document has expired. Onfido uses UTC as a fixed reference point for the current date and time when the dates are compared.
2. If this is flagged, the expiration date has the incorrect format or the date is in the past.

age_validation:

Asserts whether the age calculated from the document’s date of birth data point is greater than or equal to the minimum accepted age set at account level. The default minimum accepted age is 16 years. Configurable to set a different minimum age value. Onfido uses UTC as a fixed reference point for the current date and time when the applicant's age is calculated.

Uses the following sub-breakdown:

• minimum_accepted_age

image_integrity:

Asserts whether the document was of sufficient quality to verify. Uses the following sub-breakdowns:

• image_quality:

  Asserts whether the quality of the image was sufficient for processing.

• conclusive_document_quality:

  A result of clear for this sub-breakdown will assert if the document was of enough quality to be able to perform a fraud inspection. A result of consider will mean that even if sub breakdowns of visual_authenticity fail, we cannot positively say the document is fraudulent or not (in cases such as parts of the document are not visible).

• supported_document:

  Asserts whether the submitted document is supported. Takes value of clear or unidentified.

• colour_picture:

  Asserts whether the image was a colour one. A black and white picture will map to a caution Document report sub-result. Configurable to map to rejected.

visual_authenticity:

Asserts whether visual (non-textual) elements are correct given the document type. Uses the following sub-breakdowns:

• fonts:

  Fonts in the document don’t match the expected ones.

• picture_face_integrity:

  The pictures of the person identified on the document show signs of tampering or alteration. In most cases this will focus on the primary picture yet it may also apply to the secondary and tertiary pictures when documents contain them.

• template:

  The document doesn’t match the expected template for the document type and country it is from.

• security_features:

  Security features expected on the document are missing or wrong.

• original_document_present:

  The document was not present when the photo was taken. For example, a photo of a photo of a document or a photo of a computer screen. Configurable to map to caution instead of suspected.

• digital_tampering:

  Indication of digital tampering in the image (for example, name altered).

• other:

  This sub-breakdown is returned for backward compatibility reasons. Its value will be consider when at least one of the other breakdowns is consider, and clear when all the other breakdowns are clear.

• face_detection:

  No face was detected on the document.

data_consistency:

Asserts whether data represented in multiple places on the document is consistent. For example, between MRZ lines and OCR extracted text on passports. Uses the following sub-breakdowns:

• multiple_data_sources_present¹
• document_type
• gender
• date_of_expiry
• nationality
• issuing_country
• document_numbers
• date_of_birth
• last_name
• first_name

1. multiple_data_sources_present is for cases where we don’t obtain a US barcode because it wasn’t extracted, wasn’t decoded, or wasn’t there at all (e.g. if the back of the document wasn’t available). It acts as a validation for the data_consistency breakdown: if 2 sources are present, then data consistency is possible and the other sub-breakdowns are enabled. multiple_data_sources_present can be disabled if needed. In this case, it will be returned as null and have no impact on the sub-result.

police_record:

Asserts whether the document has been identified as lost, stolen or otherwise compromised. Applies to all documents that have been reported as stolen or fraudulent to the UK Metropolitan Police.

This breakdown is only returned if Police Record Checks are enabled for your account. Otherwise, the breakdown and its sub-breakdowns are returned as null and will not affect the final report result. To enable Police Record Checks, please contact Client Support.

compromised_document:

Asserts whether the image of the document has been found in our internal database.

• document_database:

  Asserts whether the document is publicly available as compromised.

• repeat_attempts:

  Asserts whether the document has been reused in a suspicious way.

issuing_authority:

Asserts whether data on the document matches the issuing authority data. Uses the following sub-breakdowns:

• nfc_active_authentication:

  Asserts whether the document NFC chip is original or cloned.

• nfc_passive_authentication:

  Asserts whether the document NFC chip data was tampered.

1. You can configure your account to always trigger Visual Document Verification if nfc_active_authentication is returned as null (even if nfc_passive_authentication is clear). In this case, the visual authentication, image integrity and data consistency checks will be performed and the results returned in the breakdowns.

Document report: Breakdown reasoning

We will return a reason whenever a report flags for one of the following breakdowns:

• visual_authenticity : original_document_present

• image_integrity : conclusive_document_quality

• image_integrity : image_quality

This works by returning the contributing reason and corresponding fail result (a consider result) in the breakdown properties.

There can be more than one reason per breakdown, as they aren’t mutually exclusive.

All other signals and potential reasons will be omitted.

The following diagram illustrates this logic:

Original Document Present reasons:

photo_of_screen - When we can see that the applicant's document is on a physical screen or device, e.g. when the device is visible, software applications are seen, a computer cursor is present, or the pixels on the image appearing to have a different texture than expected

screenshot - When the applicant has used their mobile phone, tablet, or computer to take a photo within the device, e.g. when software applications are seen, the time and mobile provider are visible, or any digitally added component that wouldn't be seen on a physical document, such as an upload icon

document_on_printed_paper - when the applicant has previously captured an image of the document, printed it out, and has now taken a photo of this print out to upload, e.g. when the edges of the paper are visible, when there are fold creases on the paper, or the document's edges blending into the background and appearing flat

scan - When the document has clearly been captured using a scanner and there are visible indicators of this, e.g. unusual shadows on the edges of the document, or written text around the document

Conclusive Document Quality reasons:

obscured_data_points - This refers to when data points are obscured to the point that we cannot confirm if the fonts match the expected ones

obscured_security_features - This refers to whenever a critical security feature is obscured. This can also refer to when the holder's wet signature, necessary for the document to be valid, is not present

abnormal_document_features - One of 3 reasons: (1) OCR Assisted Scans (i.e. when you're able to move the mouse and highlight part of text), (2) Severely Washed out Background, (3) Overlapping Text

watermarks_digital_text_overlay - Any digital text or electronic watermarks on the document

corner_removed - If the corner has been physically cut off. This can be found on some documents that are no longer valid

punctured_document - A punched hole is present. This can be found on DLs that are no longer valid, for example

missing_back - When the back of a document is needed for processing (e.g. for key data points to extract), but is not available (e.g. if the same front was uploaded twice)

digital_document - When a document has been published digitally, there aren’t enough security features to review so we cannot perform a full fraud assessment

Image Quality reasons:

dark_photo - When an image of the document is too dark to be able to see data points

glare_on_photo - When there is light reflecting on the document causing glare to obstruct data points

blurred_photo - When data points are blurred and no reference can be made elsewhere in the document or if the data points are too blurry and 'they could be something else' (e.g. "I" could be "1", "B" could be "8")

covered_photo - When data points have been covered either by the applicant or by another object such as a sticker

other_photo_issue - Any other reason not listed, such as when holograms are obscuring data points

damaged_document - When a document is damaged and we are unable to make out data points

incorrect_side - When the incorrect side of a document has been uploaded, and we have not received the front

cut_off_document - When data points are not included in the image due to the document being cut off (i.e. out of the frame of the image)

no_document_in_image - If no document has been uploaded or there is a blank image

two_documents_uploaded - When 2 different documents are submitted in the same check

Facial Similarity Photo

Facial Similarity Photo: Object

The following table describes the unique fields returned in this version of the Onfido API for a completed Facial Similarity Photo report:

1: source_integrity may contain reasons under the properties bag (see Facial Similarity Photo: Source Integrity)

2: face_match contains a score value and document_id unique identifier under the properties bag (see Facial Similarity Photo: Face Match properties)

3: spoofing_detection contains a score value under the properties bag (see Facial Similarity Photo: Spoofing Detection Score)

Facial Similarity Photo: Breakdowns

Facial Similarity Photo: Source Integrity

We will return a reason whenever a report flags for source_integrity. This works by returning the contributing reason and a consider result in the source_integrity breakdown properties. There can be more than one reason, because they aren’t mutually exclusive. All other signals and potential reasons will be omitted.

For Facial Similarity Photo, the source_integrity sub-breakdown is composed of the following properties:

• digital_tampering - when evidence is found that the image was manipulated by Photoshop, or other software
• fake_webcam - when evidence is found that a fake webcam was used
• time_of_capture - when evidence is found that the live photo was taken more than 24 hours before live photo upload
• emulator - when evidence is found that an Android emulator was used
• payload_integrity - when evidence is found that the payload was tampered with
• reasons - additional comma separated details such as the exact digital tampering software used, or the name of the fake webcam

Facial Similarity Photo: Face Match properties

The face_match breakdown contains a properties object with a score value and document_id unique identifier.

• The score value is a floating point number between 0 and 1 that expresses how similar the two faces are, where 1 is a perfect match.

  If the face matching algorithm fails to detect a face, the score property will not be present and the face matching task will be done manually. The score only measures how similar the faces are, and does not make an assessment of the nature of the photo. If spoofing (such as photos of printed photos or photos of digital screens) is detected the applicant will be rejected independently of the face match score.

• document_id returns the UUID for the document containing the extracted face that was used for face matching.

  If no face is detected, no document is recorded and the property is returned as null.

Facial Similarity Photo: Spoofing Detection Score

The spoofing_detection breakdown contains a properties object with a score value. This score is a floating point number between 0 and 1. The closer the score is to 0, the more likely it is to be a spoof (i.e. photos of printed photos, or photos of digital screens). Conversely, the closer it is to 1, the less likely it is to be a spoof.

Photo Fully Auto

Photo Fully Auto: Object

The following table describes the unique fields returned in this version of the Onfido API for a completed Photo Fully Auto report:

1: source_integrity may contain reasons under the properties bag (see Source Integrity for Photo Fully Auto)

2: face_match contains a score value and document_id unique identifier under the properties bag (see Face Match properties for Photo Fully Auto)

3: spoofing_detection contains a score value under the properties bag (see Spoofing Detection Score for Photo Fully Auto)

Photo Fully Auto: Breakdowns

Photo Fully Auto: Source Integrity

We will return a reason whenever a report flags for source_integrity. This works by returning the contributing reason and a consider result in the source_integrity breakdown properties. There can be more than one reason, because they aren’t mutually exclusive. All other signals and potential reasons will be omitted.

For Photo Fully Auto, the source_integrity sub-breakdown is composed of the following properties:

• digital_tampering - when evidence is found that the image was manipulated by Photoshop, or other software
• fake_webcam - when evidence is found that a fake webcam was used
• time_of_capture - when evidence is found that the live photo was taken more than 24 hours before live photo upload
• emulator - when evidence is found that an Android emulator was used
• payload_integrity - when evidence is found that the payload was tampered with
• reasons - additional comma separated details such as the exact digital tampering software used, or the name of the fake webcam

Photo Fully Auto: Face Match properties

The face_match breakdown contains a properties object with a score value and document_id unique identifier.

• The score value is a floating point number between 0 and 1 that expresses how similar the two faces are, where 1 is a perfect match.

  If the face matching algorithm fails to detect a face, the score property will not be present. The score only measures how similar the faces are, and does not make an assessment of the nature of the photo. If spoofing (such as photos of printed photos or photos of digital screens) is detected the applicant will be rejected independently of the face match score.

• document_id returns the UUID for the document containing the extracted face that was used for face matching.

  If no face is detected, no document is recorded and the property is returned as null.

Photo Fully Auto: Spoofing Detection Score

The spoofing_detection breakdown contains a properties object with a score value. This score is a floating point number between 0 and 1. The closer the score is to 0, the more likely it is to be a spoof (i.e. photos of printed photos, or photos of digital screens). Conversely, the closer it is to 1, the less likely it is to be a spoof.

If the anti-spoofing algorithm fails to detect a face, the score property will not be present.

Facial Similarity Video

In the Facial Similarity Video report, live videos are collected and uploaded by one of the Onfido SDKs (iOS, Android or JS).

In addition to confirming the two faces match, Facial Similarity Video assesses active liveness by asking users to repeat randomly generated numbers and perform a random head movement. This prevents impersonation - for example masks, and deep fakes displayed on digital screens. This process is reflected in visual_authenticity, which is composed of the sub-breakdowns spoofing_detection and liveness_detected. See Facial Similarity Video Object and Facial Similarity Video Breakdowns.

In order for a Facial Similarity Video report to complete automatically, the user needs to turn their head in the correct direction and correctly say the 3 randomly generated digits in one of our supported languages (see table below).

SDK localization

We recommend that you localize the strings if you're using one of the Onfido SDKs, so the user is more likely to understand the liveness headturn and speaking instructions.

The Onfido voice processor will attempt to detect the language the user is speaking. This will be more successful if you pass the code for the expected language to the locale mechanism, in any of the Onfido SDKs:

• iOS SDK - pass the onfido_locale parameter
• Android SDK - pass the onfido_locale parameter
• Web SDK - pass the locale parameter

Some string localisations are available out of the box, but this differs depending on the SDK.

You can also provide your own custom translations to your users.

Facial Similarity Video: Object

The following table describes the unique fields returned in this version of the Onfido API for a completed Facial Similarity Video report:

1: source_integrity may contain reasons under the properties bag (see Facial Similarity Video: Source Integrity)

2: face_match contains a score value and document_id unique identifier under the properties bag (see Facial Similarity Video: Face Match properties)

3: spoofing_detection contains a score value under the properties bag (see Facial Similarity Video: Spoofing Detection Score)

Facial Similarity Video: Breakdowns

Facial Similarity Video: Source Integrity

We will return a reason whenever a report flags for source_integrity. This works by returning the contributing reason and a consider result in the source_integrity breakdown properties. There can be more than one reason, because they aren’t mutually exclusive. All other signals and potential reasons will be omitted.

For Facial Similarity Video, the source_integrity sub-breakdown is composed of the following properties:

• fake_webcam - when evidence is found that a fake webcam was used
• emulator - when evidence is found that an Android emulator was used
• payload_integrity - when evidence is found that the payload was tampered with
• challenge_reuse - when evidence is found that the video was uploaded in an attempt to circumvent the randomness of the speaking and head turn challenges
• reasons - additional comma separated details, such as the name of the fake webcam

Facial Similarity Video: Face Match properties

The face_match breakdown contains a properties object with a score value and document_id unique identifier.

• The score value is a floating point number between 0 and 1 that expresses how similar the two faces are, where 1 is a perfect match.

  If the face matching algorithm fails to detect a face, the score property will not be present and the face matching task will be done manually. The score only measures how similar the faces are, and does not make an assessment of the nature of the live video. If spoofing (such as videos of digital screens, masks or print-outs) is detected the applicant will be rejected independently of the face match score.

• document_id returns the UUID for the document containing the extracted face that was used for face matching.

  If no face is detected, no document is recorded and the property is returned as null.

Facial Similarity Video: Spoofing Detection Score

The spoofing_detection breakdown contains a properties object with a score value. This score is a floating point number between 0 and 1. The closer the score is to 0, the more likely it is to be a spoof (i.e. videos of digital screens, masks or print-outs). Conversely, the closer it is to 1, the less likely it is to be a spoof.

The score value is based on passive facial information only, regardless of whether or not the user said the expected digits or turned their head in the correct direction. For example, a user who performs no action but is a real person should receive a score close to 1.

Facial Similarity Motion

In the Facial Similarity Motion report, motion captures are collected and uploaded by one of the Onfido SDKs (iOS, Android or JS).

In addition to confirming the two faces match, Facial Similarity Motion assesses liveness by asking users to complete a head turn in both directions. This process is reflected in visual_authenticity, which is composed of the sub-breakdowns spoofing_detection and liveness_detected. See Facial Similarity Motion Object and Facial Similarity Motion Breakdowns.

Facial Similarity Motion reports always complete automatically.

Facial Similarity Motion: Object

The following table describes the unique fields returned in this version of the Onfido API for a completed Facial Similarity Motion report:

1: source_integrity may contain reasons under the properties bag (see Facial Similarity Motion: Source Integrity)

2: face_match contains a score value and document_id unique identifier under the properties bag (see Facial Similarity Motion: Face Match properties)

3: spoofing_detection contains a score value under the properties bag (see Facial Similarity Motion: Spoofing Detection Score)

Facial Similarity Motion: Breakdowns

Facial Similarity Motion: Source Integrity

We will return a reason whenever a report flags for source_integrity. This works by returning the contributing reason and a consider result in the source_integrity breakdown properties. There can be more than one reason, because they aren’t mutually exclusive. All other signals and potential reasons will be omitted.

For Facial Similarity Motion, the source_integrity sub-breakdown is composed of the following properties:

• fake_webcam - when evidence is found that a fake webcam was used
• emulator - when evidence is found that an Android emulator was used
• payload_integrity - when evidence is found that the payload was tampered with
• reasons - additional comma separated details, such as the name of the fake webcam

Facial Similarity Motion: Face Match Score

The face_match breakdown contains a properties object with a score value and document_id unique identifier.

• The score value is a floating point number between 0 and 1 that expresses how similar the two faces are, where 1 is a perfect match.

  The score only measures how similar the faces are, and does not make an assessment of the nature of the motion capture. If spoofing (such as videos of digital screens, masks or print-outs) is detected the applicant will be rejected independently of the face match score.

• document_id returns the UUID for the document containing the extracted face that was used for face matching.

  If no face is detected, no document is recorded and the property is returned as null.

Facial Similarity Motion: Spoofing Detection Score

The spoofing_detection breakdown contains a properties object with a score value. This score is a floating point number between 0 and 1. The closer the score is to 0, the more likely it is to be a spoof (i.e. videos of digital screens, masks or print-outs). Conversely, the closer it is to 1, the less likely it is to be a spoof.

The score value is based on passive facial information only, regardless of whether or not the user performed the head turn. For example, a user who performs no action but is a real person should receive a score close to 1.

Known Faces report

This API documentation offers detailed information about the structure of a Known Faces report, including an example of the report's result and its breakdowns.

For a more general introduction to the Known Faces report, you may wish to read our product documentation.

Each applicant you run a Known Faces report against must have an uploaded live photo, live video or motion capture.

If no live photo, live video or motion capture is found, the Known Faces report will be automatically withdrawn and return an error in the report properties:

"properties":{
    "reason": "Report withdrawn due to missing media (photo, video or motion capture) required for processing."
}

No matches will be returned against any permanently deleted applicants.

To request a Known Faces report as part of a check in the API, use the report_names field (which takes an array of strings):

"report_names": ["known_faces"]

Required applicant data

For Known Face reports, first_name and last_name must be provided but can be dummy values if you don't know an applicant's name.

Known Faces: Object

The following table describes the unique fields returned in this version of the Onfido API for a completed Known Faces report:

1. null is returned when image_integrity is "consider". This is because, when no face is detected in the input media, there is nothing to match against previously seen faces.

Known Faces: Breakdowns

Known Faces: Properties

The Known Faces response will return any matching applicant IDs as entries inside a matches array under a properties bag. Each applicant ID has a corresponding score and the media type (for example live_photos, live_videos), as well as the corresponding UUID for that media type. For example, the live photo or live video ID.

Only matches where the suspected field is true should be considered as possible fraud. This is determined by fuzzy matching the report's applicant name and matched applicants' names. This can have a value of false only if the fuzzy name matching feature for Known Faces reports is enabled in your account.

The score attribute is a floating point number between 0 and 1 that expresses how similar the two faces are, where 1 is a perfect match.

"matches": [
  {
    "applicant_id": "NTH_MATCHED_APPLICANT_ID",
    "score": 0.9915,
    "media_id": "LIVE_PHOTO_ID",
    "media_type": "live_photos",
    "suspected": true
  }
]

If matches are found and any of them is suspected, the result will be consider. Conversely, if none of the matches are suspected, the result will be clear.