v0.3updated 2026-04-30

Documentation.

Install the SDK, write a YAML policy, ship with a signed audit trail from the first request.

$ pip install checkrd && checkrd init

Read the quickstart

Start here

quickstart

Quickstart

Install, wrap, and ship your first policy in under ten minutes.

Open how it works

How it works

WASM in-process. Zero data egress. Signed end to end. The architecture, in one page.

Open api reference

API reference

Stripe-style date-versioned HTTP API for the control plane. Auth, agents, policies, telemetry, audit.

Open

Integrations

seven Tier-1 vendors · OTLP · any httpx client

Seven vendor auto-instrumentors. Any HTTP client via wrap(). OTLP for everything else. No vendor lock-in on the LLM side.

OpenAIready Anthropicready Cohereready Groqready Togetherready Google GenAIready OTLP / OpenTelemetryready Any httpx clientready

API reference

Date-versioned (Checkrd-Version: YYYY-MM-DD), idempotent, cursor-paginated. Every mutation returns the canonical resource.

Core

Overview

Conventions, auth, versioning, errors.

Authentication

JWT cookies, API keys, RBAC.

Errors

Stripe-style structured error responses.

Resources

Agents

CRUD, kill switch, public key.

Policies

Versioning, activation, diff, templates.

API keys

Create, list, revoke (ck_live_/ck_test_).

Organizations

Membership, roles, invitations.

Telemetry & audit

Telemetry

Bulk ingestion, RFC 9421 signing.

Audit log

Time-partitioned, searchable.

Dashboard

Stats, timeseries, events.

Alerts

CRUD, toggle, notifications.

Runtime & ops

Control

SSE stream, polling fallback.

Billing

Stripe checkout, portal, webhooks.

Resources

github

GitHub

Open-source core (Apache-2.0). Issues, discussions, contribution guide.

security & trust

Security & trust

Cryptographic architecture, data handling, compliance posture.

how we compare

How we compare

Checkrd vs. LLM observability, AI gateways, and DIY policy code, plus honest notes on when each is the right call.