Skip to main content

Bryn

Bryn is Civic's agent platform. Its Control Plane API is a tenant-scoped REST API for managing onboarding, plays, signals, entities, prompts, and more — and an MCP server exposes the same capabilities to AI clients.

Base URLs​

  • REST API: https://bryn.civic.com/api
  • MCP endpoint: https://bryn.civic.com/mcp

Authentication​

The API is authenticated with Civic Auth bearer tokens (Authorization: Bearer <jwt>).

The JWT identifies the caller, not the tenant. Bryn resolves the active tenant from the caller's memberships on every request:

  • One membership → that tenant is selected implicitly; no header needed.
  • More than one → send X-Bryn-Tenant: <tenantId> naming one of your tenants.
  • Multi-membership with the header missing → 403 ambiguous_tenant.
  • A tenant you don't belong to → 403 tenant_forbidden.
note

The X-Bryn-Tenant header is a selector, not the source of truth: the tenant bound at the data layer is always taken from the matched membership.

Explore​

Control Plane API

Browse every REST endpoint with request/response schemas and an interactive "Try it" console.

MCP Server

Connect an MCP client to Bryn over OAuth-secured streamable HTTP.