> For the complete documentation index, see [llms.txt](https://docs.empe.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.empe.io/develop/issuer/api-reference/metadata.md).

# Metadata

## Retrieves the OpenID Credential Issuer metadata configuration

> Get OpenID Credential Issuer metadata

```json
{"openapi":"3.0.0","info":{"title":"issuer-service","version":"1.0.0-rc2"},"servers":[{"url":"/"}],"security":[],"paths":{"/.well-known/openid-credential-issuer":{"get":{"operationId":"IssuerMetadata","responses":{"200":{"description":"The issuer metadata","content":{"application/json":{"schema":{"$ref":"#/components/schemas/IssuerMetadataDto"}}}}},"description":"Get OpenID Credential Issuer metadata","summary":"Retrieves the OpenID Credential Issuer metadata configuration","tags":["Metadata"],"parameters":[]}}},"components":{"schemas":{"IssuerMetadataDto":{"description":"OpenID Credential Issuer metadata","properties":{"credential_issuer":{"type":"string","description":"Base URL of the credential issuer"},"credential_endpoint":{"type":"string","description":"Endpoint for credential operations"},"token_endpoint":{"type":"string","description":"Endpoint for token operations"},"schema_endpoint":{"type":"string","description":"Endpoint for schema operations"},"authorize_endpoint":{"type":"string","description":"Endpoint for authorization requests"},"offering_endpoint":{"type":"string","description":"Endpoint for credential offerings"},"authorization_servers":{"items":{"type":"string"},"type":"array","description":"List of authorization server URLs"},"display":{"items":{"$ref":"#/components/schemas/DisplayDto"},"type":"array","description":"Display information for the issuer"},"credential_configurations_supported":{"$ref":"#/components/schemas/SupportedCredentialConfigurationDto","description":"Supported credential configurations"},"proof_types_supported":{"properties":{"jwt":{"properties":{"proof_signing_alg_values_supported":{"items":{"type":"string"},"type":"array"}},"required":["proof_signing_alg_values_supported"],"type":"object"}},"required":["jwt"],"type":"object","description":"Supported proof types and algorithms"}},"required":["credential_issuer","offering_endpoint","authorization_servers","display","credential_configurations_supported","proof_types_supported"],"type":"object","additionalProperties":false},"DisplayDto":{"description":"Display information for credential issuer","properties":{"name":{"type":"string","description":"Display name"},"locale":{"type":"string","description":"Locale code (BCP 47 language tag)"}},"required":["name","locale"],"type":"object","additionalProperties":false},"SupportedCredentialConfigurationDto":{"$ref":"#/components/schemas/Record_string.SupportedCredentialDefinitionDto_","description":"Mapping of credential names to their definitions"},"Record_string.SupportedCredentialDefinitionDto_":{"properties":{},"additionalProperties":{"$ref":"#/components/schemas/SupportedCredentialDefinitionDto"},"type":"object","description":"Construct a type with a set of properties K of type T"},"SupportedCredentialDefinitionDto":{"description":"Supported credential definition format and display","properties":{"format":{"type":"string","enum":["jwt_vc_json"],"nullable":false,"description":"Format of the credential"},"display":{"items":{"$ref":"#/components/schemas/DisplayDto"},"type":"array","description":"Display information for the credential"}},"required":["format","display"],"type":"object","additionalProperties":false}}}}
```

## Retrieves the DID metadata with domain linkage credential

> Get DID metadata

```json
{"openapi":"3.0.0","info":{"title":"issuer-service","version":"1.0.0-rc2"},"servers":[{"url":"/"}],"security":[],"paths":{"/.well-known/did-configuration":{"get":{"operationId":"DidMetadata","responses":{"200":{"description":"The DID metadata with JWT","content":{"application/json":{"schema":{"$ref":"#/components/schemas/DidMetadataDto"}}}}},"description":"Get DID metadata","summary":"Retrieves the DID metadata with domain linkage credential","tags":["Metadata"],"parameters":[]}}},"components":{"schemas":{"DidMetadataDto":{"description":"DID metadata response","properties":{"entries":{"items":{"$ref":"#/components/schemas/EntryDto"},"type":"array","description":"List of DID metadata entries"}},"required":["entries"],"type":"object","additionalProperties":false},"EntryDto":{"description":"Entry for DID metadata","properties":{"did":{"type":"string","description":"DID of the issuer"},"jwt":{"type":"string","description":"JWT containing the domain linkage credential"}},"required":["did","jwt"],"type":"object","additionalProperties":false}}}}
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.empe.io/develop/issuer/api-reference/metadata.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.