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Credential issuance

Request authorization for access to resources

This endpoint is used to request authorization from the user for access to the requested resources. After the user approves the request, an authorization code is returned to the client. See https://openid.net/specs/openid-4-verifiable-credential-issuance-1_0.html#name-authorization-endpoint See https://www.rfc-editor.org/rfc/rfc6749.html#section-3.1

Analytic events

  • OPENID_AUTHORIZE_START
  • OPENID_AUTHORIZE_SUCCESS
  • OPENID_AUTHORIZE_FAIL
Request
query Parameters
response_type
required
string

The response type, which must be 'code'.

Value: "code"
client_id
required
string

The client identifier.

redirect_uri
required
string

The URI to which the authorization server will redirect the user-agent with the authorization code.

scope
required
string

The scope of the access request.

state
string

An opaque value used by the client to maintain state between the request and callback.

code_challenge_method
required
string

The method used to derive the code_challenge, which must be 'S256'.

Value: "S256"
code_challenge
required
string

A high entropy random challenge generated by the client.

Responses
302

Redirection to client application with authorization code

400

Bad request. The request was malformed or missing required parameters.

401

Unauthorized. The client is not authorized to access this resource.

403

Forbidden. The authorization server refuses to grant the client access to the resource.

500

Internal server error. An unexpected error occurred.

get/core/v1/oauth/authorize
Request samples 
Exchange authorization code for access token
This endpoint is used to exchange an authorization code for an access token. The authorization code is obtained from the authorization endpoint after the user has authenticated and granted access.
See https://openid.net/specs/openid-4-verifiable-credential-issuance-1_0.html#name-token-endpoint


Analytic events


    

  • OPENID_TOKEN_START
    • 

  • OPENID_TOKEN_SUCCESS
    • 

  • OPENID_TOKEN_FAIL
    • 



Request 
Request Body schema: application/x-www-form-urlencoded
client_id
required
string
The client identifier.


 
grant_type
required
string
The grant type, which must be 'authorization_code'.


 Value: "authorization_code"  
redirect_uri
required
string
The redirect URI that was used in the authorization request.


 
code
required
string
The authorization code obtained from the authorization endpoint.


 
code_verifier
required
string
SHA256 hash of the code_challenge in the authorization request.


 
Responses 
200
Access token successfully returned.


400
Bad request. The request was malformed or missing required parameters.


401
Unauthorized. The client is not authorized to access this resource.


403
Forbidden. The authorization server refuses to grant the client access to the resource.


500
Internal server error. An unexpected error occurred.


post/core/v1/oauth/token
Request samples 
application/x-www-form-urlencoded
client_id=string&grant_type=authorization_code&redirect_uri=string&code=string&code_verifier=string
Response samples 
application/json
{
  • "access_token": "string",
  • "token_type": "Bearer",
  • "expires_in": 0,
  • "scope": "string"
}
Issue a verifiable credential
Issues a verifiable credential to a subject as part of the OpenID4VCI protocol.


See https://openid.net/specs/openid-4-verifiable-credential-issuance-1_0.html#name-credential-endpoint


Analytic events


    

  • OPENID_CREDENTIAL_START
    • 

  • OPENID_CREDENTIAL_SUCCESS
    • 

  • OPENID_CREDENTIAL_FAIL
    • 



SecuritybearerAuthOpenIdCredentials 
Request 
Request Body schema: application/json
One of:
format
required
string
Credential format, always ldp_vc for JSON credentials.


 Value: "ldp_vc"  
required
object
 
object
JSON object containing proof of possession of the key material the issued Credential shall be bound to.


 
Responses 
200
Credential issued


post/core/v1/openid/credential
Request samples 
application/json
{
  • "format": "ldp_vc",
  • "credential_definition": {},
  • "proof": {
    }
}
Response samples 
application/json
{}
Create an OpenID4VCI credential offer
Returns an OpenID4VCI credential offer URI.
See https://openid.net/specs/openid-4-verifiable-credential-issuance-1_0.html#section-10.1


Analytic events


    

  • OPENID_OFFER_CREATE_START
    • 

  • OPENID_OFFER_CREATE_SUCCESS
    • 

  • OPENID_OFFER_CREATE_FAIL
    • 



SecuritybearerAuthOpenIdCredentials 
Request 
Request Body schema: application/json
credentials
required
Array of strings
This array includes a list of identifiers for credentials that will be included in the credential offer. These identifiers are the id elements returned in the response when you create a credential configuration. To issue multiple credential formats of the same credential in a single flow, include all the required credential configuration id elements in the request payload.


 
object
Specifies a list of additional request parameters that the wallet can include in the authentication request.


 
Responses 
200
Credential offer URI created


post/core/v1/openid/offers
Request samples 
application/json
{
  • "credentials": [
    ],
  • "request_parameters": {
    }
}
Response samples 
application/json
{
  • "uri": "openid-credential-offer://?credential_offer=%7B%22credential_issuer%22%3A%22https%3A%2F%2Fmyissuer.example.com%22%2C%22credentials%22%3A%5B%22707e920a-f342-443b-ae24-6946b7b5033e%22%5D%2C%22request_parameters%22%3A%7B%22login_hint%22%3A%22user%40example.com%22%2C%22prompt%22%3A%22login%22%7D%7D"
}
Retrieve OpenID4VCI issuer metadata
Returns OpenID4VCI issuer metadata. This is the standard OpenID4VCI Well Known endpoint for your tenant.


This endpoint is unprotected, public facing and can be deterministically found at the root of the tenant subdomain or alias by any party wishing to discover the OpenID4VCI capabilities.


Responses 
200
OpenID4VCI credential issuer metadata retrieved


get/.well-known/openid-credential-issuer
Request samples 
curl --request GET \
  --url https://{tenantName}.{region}.mattr.global/.well-known/openid-credential-issuer \
  --header 'Accept: application/json'

Response samples 
application/json
{
  • "issuer": "http://example.com",
  • "authorization_endpoint": "http://example.com",
  • "token_endpoint": "http://example.com",
  • "scopes_supported": [
    ],
  • "response_types_supported": [
    ],
  • "response_modes_supported": [
    ],
  • "grant_types_supported": [
    ],
  • "code_challenge_methods_supported": [
    ],
  • "credential_issuer": "http://example.com",
  • "credential_endpoint": "http://example.com",
  • "credentials_supported": [
    ],
  • "mdoc_iacas_uri": "http://example.com"
}
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