HTTP API

The brain is a FastAPI app. Agents use POST /mcp; the web UI uses the /api/… routes below with the same credentials. All project-scoped routes enforce membership; non-members get 404. Auth legend — A: normal gateway auth (Supabase session JWT, rr_sk_ key, or mk_ key + membership; runner child sessions carry a mas_ credential valid only on /mcp) · PUB: no auth · TOK: a one-time or HMAC token in the path is the credential · OP: operator X-Admin-Token.

MCP and discovery

Method	Path	Auth	Purpose
POST	`/mcp`	A	Streamable-HTTP MCP JSON-RPC. The only path that accepts OAuth audience-bound bearers
GET	`/.well-known/oauth-authorization-server`	PUB	OAuth metadata (RFC 8414)
GET	`/.well-known/oauth-protected-resource/mcp`	PUB	Protected-resource metadata (RFC 9728)
POST	`/oauth/register`	PUB	Dynamic client registration
GET / POST	`/oauth/authorize`	PUB	Consent (PKCE)
POST	`/oauth/token`	PUB	Token exchange and refresh

OAuth routes exist only when the brain has an OAuth service configured (hosted and authenticated self-host); a loopback brain has none.

Health and meta

Method	Path	Auth
GET	`/health`	PUB
GET	`/api/meta`	PUB — advertises auth requirements, Supabase URL/anon key for the UI, the client version floor, feature flags
GET	`/api/activity`, `/api/debug/tool-calls`, `/api/debug/tool-calls/{call_id}`	A; `?project_id=` required; `mk_` keys get 403
POST	`/api/debug/tool-calls/clear`, `/api/admin/cleanup`, GET `/api/admin/tenants/{tenant_id}/counters`	OP

Clients send X-RP-Client-Version; below the floor → HTTP 426, checked before auth.

Projects, members, keys

Method	Path
GET / POST	`/api/projects`
GET / PATCH / PUT	`/api/projects/{project_id}`
GET	`/api/projects/{project_id}/home`, `…/status`
GET / POST	`/api/projects/{project_id}/members` — POST body `{"user_id": "…"}` or `{"email": "…"}`
DELETE	`/api/projects/{project_id}/members/{user_id}`
POST / GET	`/api/projects/{project_id}/keys` — create (member) / list (owner-scoped)
POST	`/api/projects/{project_id}/keys/{key_id}/revoke`
PUT / DELETE	`/api/user/hf-token` — the caller’s Hugging Face token for sandboxes

Research records

Method	Path
GET / POST	`/api/projects/{project_id}/claims`; GET / PATCH / PUT `…/claims/{claim_id}`
GET / POST	`/api/projects/{project_id}/experiments` (`?status=`); GET `…/experiments/view`
GET	`…/experiments/{experiment_id}`, `…/status`, `…/figure`, `…/graph`
POST	`…/experiments/{experiment_id}/transition`
GET	`/api/projects/{project_id}/litreview` (ETag)
GET	`/api/projects/{project_id}/reflections`; `…/reflections/current/graph`; `…/reflections/{reflection_id}`, `…/graph`, `…/consolidation`
GET	`/api/projects/{project_id}/reviews` (filter with `?target_id=`; `?target_type=` alone returns the whole queue); POST `…/reviews/request`, `…/reviews/start`, `…/reviews/submit`
GET	`/api/projects/{project_id}/events` (ETag; keep `?limit=` ≤ 500); `…/events/stream` (SSE; `?since=`, `?poll_ms=`, `?max_ms=`)

Under auth, SSE can’t carry the header — the UI falls back to ETag polling.

Artifacts and storage

Method	Path	Auth
PUT	`/api/artifacts/u/{token}`, `/api/artifacts/f/{token}`	TOK — upload targets returned by `artifact.submit`
GET	`/api/projects/{project_id}/artifacts`; `…/artifacts/{artifact_id}/content`, `…/file`, `…/figure?rel=` (`rel` required)	A
GET / POST	`/api/storage/u/{token}`, `/api/storage/u/{token}/complete`	TOK
GET	`/api/projects/{project_id}/storage` (`?kind=&status=&name=&include_expired=`); `…/storage/{object_id}`	A
POST	`…/storage/{object_id}/download`, `…/pin`, `…/unpin`, `…/renew`; DELETE `…/storage/{object_id}`	A

Sandboxes and providers

Method	Path	Auth
GET	`/api/sandboxes/health`; `/api/projects/{project_id}/sandboxes` (ETag); `…/compute-cost`	A
GET	`…/experiments/{experiment_id}/sandbox`, `…/sandbox/metrics`, `…/sandbox/terminal`; same by `…/sandboxes/{sandbox_uid}`	A
POST	`…/experiments/{experiment_id}/sandbox/release`; `…/sandboxes/{sandbox_uid}/release`	A
GET	`/wait/{sandbox_uid}/{label}/{sig}`	TOK — the `wait_url` for long runs; rate-limited
GET	`/api/projects/{project_id}/sandbox-providers`	A
PUT	`…/sandbox-providers/{provider}`; POST `…/enabled`, `…/daily-limit`, `…/verify`	A

Registered only when sandboxes are enabled.

Feed

Method	Path	Auth
PUT	`/api/feed/u/{token}`	TOK — media upload
GET	`/api/projects/{project_id}/feed` (`?limit=` 1–100, default 30; `?cursor=`)	A
POST	`…/feed/{post_id}/reactions`, `…/reply`, `…/feed/track`	A
GET	`…/feed/{post_id}/image`, `…/link-image`, `…/embed`	A

Auto-run control plane

Method	Path	Auth
POST	`/api/agent-runners/pairing`, `/api/agent-runners/pairing/token`	PUB — the runner’s device-code pairing
POST	`/api/projects/{project_id}/agent-runners/pairings/approve`	A (owner session; 10 misses / 10 min → 429)
POST	`…/agent-runners/heartbeat`; PUT `…/agent-runners/settings`	A
POST	`/api/agent-sessions/claim`; `…/{session_id}/attach`, `…/release`, `…/heartbeat`, `…/trace`	A (trace: owning runner only)
GET	`/api/projects/{project_id}/agent-sessions`; `…/agent-sessions/{session_id}/trace`	A
POST	`…/agent-sessions/{session_id}/halt`; `…/agent-sessions/halt`	A
POST / GET / POST	`…/consolidation/prepare`, `…/consolidation/pending`, `…/consolidation/settle`	A

Pairing routes exist only on an authenticated brain — a loopback brain has no pairing.

Off by default

MLflow tracking routes (…/experiments/{experiment_id}/results/metrics, /api/projects/{project_id}/mlflow, /internal/auth/mlflow) register only when tracking is enabled. /mcp/tools and /mcp/call are legacy shims; use /mcp.

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Concepts

Guides

Clients

Reference

Self-host

MCP and discovery

Health and meta

Projects, members, keys

Research records

Artifacts and storage

Sandboxes and providers

Feed

Auto-run control plane

Off by default

​MCP and discovery

​Health and meta

​Projects, members, keys

​Research records

​Artifacts and storage

​Sandboxes and providers

​Feed

​Auto-run control plane

​Off by default

MCP and discovery

Health and meta

Projects, members, keys

Research records

Artifacts and storage

Sandboxes and providers

Feed

Auto-run control plane

Off by default