# The Ultimate Critic

> The Ultimate Critic checks completed work against its task and requirements. It returns `pass`, `fail`, or `insufficient_evidence` with findings, recommended fixes, and verification steps.

Supported inputs include text, code, images, interfaces, JSON, game scenes, and mixed packages. The service is a private beta. Results can be incomplete or wrong and do not guarantee correctness, security, compliance, performance, or business outcomes.

## Try and inspect

- [Free preview](https://ultimate-critic.fly.dev/preview.html): Check up to 10,000 characters of text, code, or JSON without an API key. The application does not store preview inputs or results, and the preview calls no external model.
- [No-key preview gate](https://ultimate-critic.fly.dev/tuc-preview-gate.py): Dependency-free Python CLI for sending one sanitized text, code, or JSON file to the public preview and receiving verdict-based process exit codes.
- [Worked example](https://ultimate-critic.fly.dev/example.html): Reproduce a fail, repair, and passing second check using sample code.
- [Visual package example](https://ultimate-critic.fly.dev/case-study-logo.html): See TUC reject its first logo concept on five production requirements, then pass the repaired identity package.
- [Product page](https://ultimate-critic.fly.dev/): Product overview and founding offer.

## Integrate

- [GitHub pull-request gate](https://github.com/marksignals/the-ultimate-critic#gate-a-pull-request): Add `marksignals/the-ultimate-critic@v1` to a public repository. The free check blocks fail and insufficient-evidence verdicts by default.
- [AI pipeline integration](https://ultimate-critic.fly.dev/ai-agent-pipeline.html): Put TUC after an AI builder and route pass, fail, or insufficient evidence to the next pipeline step.
- [MCP server](https://ultimate-critic.fly.dev/mcp.html): Connect an AI client to the live Streamable HTTP endpoint or the local stdio bridge for paid evaluation, no-key preview, and account usage tools.
- [Official MCP Registry listing](https://registry.modelcontextprotocol.io/?q=io.github.marksignals%2Fthe-ultimate-critic): Published as `io.github.marksignals/the-ultimate-critic`.
- [Remote MCP endpoint](https://ultimate-critic.fly.dev/mcp): Stateless Streamable HTTP transport. Paid tools use a secret `X-API-Key` header; the preview tool requires no key.
- [Standalone MCP bridge](https://ultimate-critic.fly.dev/tuc-mcp-server.py): Dependency-free Python server. Paid tools read the tenant key only from `TUC_API_KEY`.
- [API quickstart](https://ultimate-critic.fly.dev/quickstart.html): Python SDK and REST examples.
- [OpenAPI](https://ultimate-critic.fly.dev/openapi.json): API schema.
- [Readiness](https://ultimate-critic.fly.dev/api/ready): Public service status.
- [Fit and setup](https://ultimate-critic.fly.dev/onboard.html): Send workflow details before or after purchase. Do not send work samples or secrets.

## Founding access

- $249 USD once.
- One tenant key for 90 days from provisioning.
- 1,000 review credits: 1 for a standard check, 5 for an extended package, and 10 for a full mixed-package review.
- Up to 1,000 standard checks or 100 full mixed-package reviews.
- One evaluation may contain a complete supported artifact or mixed package; it is not limited to a source diff.
- Setup support.
- No automatic renewal.
- Ten accounts available.

## Terms and contact

- [Policies](https://ultimate-critic.fly.dev/policies.html): Delivery, refunds, privacy, and service terms.
- [Contact](https://ultimate-critic.fly.dev/contact.html): Product fit, support, billing, refunds, privacy, and security.
- [Stripe checkout](https://buy.stripe.com/6oUaEQbTScLhgdq3U63gk02): Purchase founding access.