REST API¶

Engramia provides a FastAPI-based REST API with Swagger UI, Bearer auth, rate limiting, and security headers.

Running the server¶

Docker (recommended)CLIPython

# JSON storage (development)
docker compose up

# PostgreSQL storage (production)
ENGRAMIA_STORAGE=postgres \
ENGRAMIA_DATABASE_URL=postgresql://user:pass@localhost:5432/brain \
OPENAI_API_KEY=sk-... \
docker compose up

pip install "engramia[openai,api]"
engramia serve --host 0.0.0.0 --port 8000

import uvicorn
from engramia.api.app import create_app

app = create_app()
uvicorn.run(app, host="0.0.0.0", port=8000)

Swagger UI is available at http://localhost:8000/docs.

Configuration¶

Environment variable	Default	Description
`ENGRAMIA_STORAGE`	`json`	`json` or `postgres`
`ENGRAMIA_DATA_PATH`	`./engramia_data`	Path for JSON storage
`ENGRAMIA_DATABASE_URL`	—	PostgreSQL URL (postgres mode only)
`ENGRAMIA_LLM_PROVIDER`	`openai`	LLM provider (`openai` or `anthropic`)
`ENGRAMIA_LLM_MODEL`	`gpt-4.1`	Model ID
`OPENAI_API_KEY`	—	OpenAI API key
`ENGRAMIA_EMBEDDING_MODEL`	`text-embedding-3-small`	Embedding model
`ENGRAMIA_API_KEYS`	(empty)	Bearer tokens (empty = dev mode, no auth)
`ENGRAMIA_PORT`	`8000`	Port

Security configuration¶

Environment variable	Default	Description
`ENGRAMIA_CORS_ORIGINS`	(empty)	Allowed CORS origins (empty = CORS disabled)
`ENGRAMIA_RATE_LIMIT_DEFAULT`	`60`	Max requests/min for standard endpoints
`ENGRAMIA_RATE_LIMIT_EXPENSIVE`	`10`	Max requests/min for LLM-intensive endpoints
`ENGRAMIA_MAX_BODY_SIZE`	`1048576`	Max request body size in bytes (1 MB)

Authentication¶

When ENGRAMIA_API_KEYS is set, all endpoints require a Bearer token:

curl -H "Authorization: Bearer my-secret-key" http://localhost:8000/v1/metrics

Warning

When ENGRAMIA_API_KEYS is empty, the API runs without authentication. This is intended for local development only. Always set API keys in production.

Endpoints¶

All endpoints are under the /v1/ prefix.

POST /v1/learn¶

Store a success pattern.

curl -X POST http://localhost:8000/v1/learn \
  -H "Content-Type: application/json" \
  -d '{"task": "Parse CSV", "code": "import csv...", "eval_score": 8.5}'

Request body:

Field	Type	Required	Description
`task`	`string`	Yes	Task description
`code`	`string`	Yes	Code/solution
`eval_score`	`number`	Yes	Quality score (0–10)
`output`	`string`	No	Agent output

POST /v1/recall¶

Find relevant patterns via semantic search.

curl -X POST http://localhost:8000/v1/recall \
  -H "Content-Type: application/json" \
  -d '{"task": "Read CSV and compute averages", "limit": 3}'

Request body:

Field	Type	Required	Default	Description
`task`	`string`	Yes	—	Task to search for
`limit`	`integer`	No	`5`	Max results

POST /v1/evaluate¶

Run multi-evaluator scoring.

curl -X POST http://localhost:8000/v1/evaluate \
  -H "Content-Type: application/json" \
  -d '{"task": "Parse CSV", "code": "import csv...", "num_evals": 3}'

POST /v1/compose¶

Compose a multi-stage pipeline.

curl -X POST http://localhost:8000/v1/compose \
  -H "Content-Type: application/json" \
  -d '{"task": "Fetch data, analyze, write report"}'

POST /v1/aging¶

Run pattern aging (decay + prune).

curl -X POST http://localhost:8000/v1/aging

POST /v1/feedback/decay¶

Run feedback decay.

curl -X POST http://localhost:8000/v1/feedback/decay

POST /v1/evolve¶

Generate an improved prompt based on recurring failure patterns.

curl -X POST http://localhost:8000/v1/evolve \
  -H "Content-Type: application/json" \
  -d '{"role": "coder", "current_prompt": "You are a coder..."}'

POST /v1/analyze-failures¶

Cluster recurring failure patterns.

curl -X POST http://localhost:8000/v1/analyze-failures \
  -H "Content-Type: application/json" \
  -d '{"min_count": 2}'

POST /v1/skills/register¶

Register skill tags on a pattern.

curl -X POST http://localhost:8000/v1/skills/register \
  -H "Content-Type: application/json" \
  -d '{"pattern_key": "patterns/abc123", "skills": ["csv_parsing", "statistics"]}'

POST /v1/skills/search¶

Search patterns by skill tags.

curl -X POST http://localhost:8000/v1/skills/search \
  -H "Content-Type: application/json" \
  -d '{"skills": ["csv_parsing"], "match_all": true}'

GET /v1/feedback¶

Get top recurring feedback patterns.

curl http://localhost:8000/v1/feedback?limit=5

GET /v1/metrics¶

Get memory statistics.

curl http://localhost:8000/v1/metrics

GET /v1/health¶

Health check with storage type.

curl http://localhost:8000/v1/health

DELETE /v1/patterns/{key}¶

Delete a pattern by key. Permission: patterns:delete (admin+).

curl -X DELETE http://localhost:8000/v1/patterns/patterns%2Fabc123

GET /v1/export¶

Export all patterns in the current scope. Permission: export.

Returns {"records": [...], "count": N} — same format accepted by POST /v1/import.

POST /v1/import¶

Bulk-import patterns. Permission: import. Supports Prefer: respond-async.

Field	Type	Required	Description
`records`	`list`	yes	Export records (max 10,000)
`overwrite`	`bool`	no	Overwrite existing keys (default `false`)

GET /v1/health/deep¶

Deep health check — probes storage, LLM, and embedding connectivity. Returns status: ok|degraded|error, per-check results, and uptime.

GET /v1/version¶

Public endpoint (no auth). Returns app_version, api_version, git_commit, build_time.

Key Management (`/v1/keys`)¶

Requires DB auth mode (ENGRAMIA_AUTH_MODE=db or auto with ENGRAMIA_DATABASE_URL).

POST /v1/keys/bootstrap¶

One-time setup. Creates default tenant, project, and owner key. Requires ENGRAMIA_BOOTSTRAP_TOKEN env var.

POST /v1/keys¶

Create a new API key. Permission: keys:create (admin+). Role hierarchy enforced.

Field	Type	Required	Description
`name`	`str`	yes	Display name (1-100 chars)
`role`	`str`	no	`owner`/`admin`/`editor`/`reader` (default `editor`)
`max_patterns`	`int`	no	Pattern quota (inherit from project if unset)
`expires_at`	`str`	no	ISO-8601 expiration

GET /v1/keys¶

List API keys for current project. Permission: keys:list.

DELETE /v1/keys/{id}¶

Revoke an API key. Permission: keys:revoke.

POST /v1/keys/{id}/rotate¶

Rotate key (generates new secret). Permission: keys:rotate.

Analytics (`/v1/analytics`)¶

POST /v1/analytics/rollup¶

Compute ROI rollup for a time window. Permission: analytics:rollup. Supports async.

Field	Type	Description
`window`	`str`	`hourly` / `daily` / `weekly`

Response: composite ROI score (0-10), recall/learn summaries, percentiles.

GET /v1/analytics/rollup/{window}¶

Fetch pre-computed rollup. Permission: analytics:read. Returns 404 if not yet computed.

GET /v1/analytics/events¶

Raw ROI events. Permission: analytics:read. Query params: limit (1-1000), since (Unix timestamp).

Jobs (`/v1/jobs`)¶

GET /v1/jobs¶

List async jobs. Permission: jobs:list. Query params: status, limit (1-100).

GET /v1/jobs/{id}¶

Get job status and result. Permission: jobs:read. Returns 404 if not found.

POST /v1/jobs/{id}/cancel¶

Cancel a pending job. Permission: jobs:cancel.

Data Governance (`/v1/governance`)¶

GET /v1/governance/export¶

Stream patterns as NDJSON (GDPR Art. 20). Permission: export. Optional classification query filter.

GET /v1/governance/retention¶

Get effective retention policy. Permission: governance:read.

PUT /v1/governance/retention¶

Set retention policy (days). Permission: governance:write. Requires DB auth.

POST /v1/governance/retention/apply¶

Apply retention — delete expired patterns. Permission: governance:admin. Supports async.

PUT /v1/governance/patterns/{key}/classify¶

Update data classification (public/internal/confidential). Permission: governance:write.

DELETE /v1/governance/projects/{project_id}¶

Delete ALL data for a project (GDPR Art. 17). Permission: governance:delete. Irreversible.

DELETE /v1/governance/tenants/{tenant_id}¶

Delete ALL data for a tenant. Owner only. Irreversible.