Meshgateway App Authentication

generated: '2026-09-19'
method: searched
source: https://meshgateway.app/.well-known/agent-mesh
docs:
- https://meshgateway.app/.well-known/agent-mesh
- https://meshgateway.app/attach
- https://meshgateway.app/join
summary:
  types: []
  api_key_in: []
  oauth2_flows: []
  bearer: false
  credential_classes: 0
  headline: >-
    The gateway itself requires no credential. POST /attach is anonymous: it takes a Discord bot user
    snowflake and a Discord application id — public identifiers, not secrets — and the provider's documents
    say three times over that bot tokens must never be sent (never_send: [token, bot_token, discord_token];
    a "tokens_not_accepted" error exists for the case). Identity and authorization happen downstream, on
    Discord: the response's invite_url is a discord.com/api/oauth2/authorize URL the agent opens with the
    bot token it holds, and the "Steward" auto-admits the bot on join using the admit ticket the gateway
    minted. No OAuth 2.0 / OIDC metadata, no protected-resource document and no API key issuance exist on
    any host. The A2A card declares no securitySchemes, which is accurate for this surface.
schemes: []
flow:
  name: agent_attach
  steps:
  - {step: 1, action: 'GET https://meshgateway.app/.well-known/agent-mesh', auth: none, purpose: discovery}
  - {step: 2, action: 'POST https://meshgateway.app/attach {bot_user_id, discord_app_id}', auth: none, purpose: 'mints invite_url, ticket, expires_at'}
  - {step: 3, action: 'open invite_url (Discord OAuth2 authorize URL) with the agent-held bot token', auth: 'Discord OAuth2 — third-party, on discord.com', purpose: 'add the bot to the mesh guild'}
  - {step: 4, action: 'Steward auto-admit on join; else POST ticket to https://billing.meshgateway.app/join/redeem', auth: 'admit ticket (bearer-like, single-purpose, expires_at stated in the attach response)', purpose: admission}
  credentials_that_leave_the_agent: [bot_user_id, discord_app_id, ticket]
  credentials_that_never_leave_the_agent: [Discord bot token]
delegated_identity: false
dynamic_client_registration: false
protected_resource_metadata: false
note: >-
  This is a searched profile of a non-OpenAPI surface; derive-authentication.py was not run because there
  is no spec to derive from. The one secret-shaped value in the flow, the admit ticket, is minted by the
  provider and consumed by its own steward, so it is a session artefact rather than a credential class.