Terminal 3 OpenID Connect V2 API

openapi: 3.0.3
info:
  title: Terminal 3 DID V1 OpenID Connect V2 API
  version: '1.0'
  description: Terminal 3 (T3) REST API for decentralized identity, verifiable credentials, OpenID Connect, sub-client management, transactional email, and user data. Reconstructed from Terminal 3's own published SDK & API Reference (https://docs.terminal3.io/developers/adk/reference), which enumerates every path, method, and tag as verified against the provider's terminal-3-openapi.yml (21 paths, 24 operations, OpenAPI 3.0.3). Request/response body schemas are not reproduced here because the raw spec file is served only through the Mintlify viewer and returns 404 as a downloadable document; this capture is structural (paths, methods, operationIds, tags, security, server) and carries no fabricated field-level schemas. Verify field shapes against the live API Reference.
  x-provenance:
    method: generated
    source: https://docs.terminal3.io/developers/adk/reference
    note: Structural reconstruction from the provider-published operation table; raw terminal-3-openapi.yml (referenced in llms.txt) 404s as a file.
    generated: '2026-07-21'
servers:
- url: https://staging.terminal3.io
  description: Documented REST API server (per the published API Reference)
security:
- bearerAuth: []
tags:
- name: OpenID Connect V2
  description: OpenID Connect token and userinfo operations (v2).
paths:
  /v2/openidc/token:
    post:
      operationId: createOpenidcTokenV2
      summary: OpenID Connect token endpoint (v2)
      tags:
      - OpenID Connect V2
      responses:
        '200':
          description: Token issued
        '400':
          $ref: '#/components/responses/BadRequest'
  /v2/openidc/user:
    get:
      operationId: getOpenidcUserV2
      summary: OpenID Connect userinfo endpoint (v2)
      tags:
      - OpenID Connect V2
      responses:
        '200':
          description: Success
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  responses:
    BadRequest:
      description: The request was malformed.
    Unauthorized:
      description: Authentication is missing or invalid.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: Bearer access token (default authentication for the T3 API).
    apiKeyAuth:
      type: apiKey
      in: header
      name: x-api-token
      description: API token required on specific endpoints (e.g. user creation). Contact enterprise@terminal3.io to obtain a key.