> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getsly.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Protocol capability info

> Machine-readable capability advertisement — what your UCP installation supports. Usually consumed via `.well-known/ucp`.



## OpenAPI

````yaml /api-reference/openapi.json get /v1/ucp/info
openapi: 3.1.0
info:
  title: Sly API
  description: >-
    The Agentic Economy Platform — stablecoin payments, agent wallets,
    multi-protocol commerce, and AI agent orchestration.
  version: 1.0.0
  contact:
    name: Sly
    url: https://getsly.ai
    email: support@getsly.ai
servers:
  - url: https://api.getsly.ai/v1
    description: Production
  - url: https://sandbox.getsly.ai/v1
    description: Sandbox
security:
  - bearerAuth: []
paths:
  /v1/ucp/info:
    get:
      tags:
        - UCP
      summary: Protocol capability info
      description: >-
        Machine-readable capability advertisement — what your UCP installation
        supports. Usually consumed via `.well-known/ucp`.
      responses:
        '200':
          description: Capabilities
          content:
            application/json:
              schema:
                type: object
                properties:
                  version:
                    type: string
                  supported_rails:
                    type: array
                    items:
                      type: string
                  supported_currencies:
                    type: array
                    items:
                      type: string
                  jwks_url:
                    type: string
                    format: uri
                required:
                  - version
                  - supported_rails
                  - supported_currencies
                  - jwks_url
      security:
        - bearerAuth: []
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        API key (pk_test_* or pk_live_*), JWT session, agent token (agent_*),
        Ed25519 session (sess_*), or portal token (portal_*).

````