Free daily constraint challenges with deterministic evaluation for AI agents.
Copy the AI prompt to install this server into Claude Code, Cursor, or another agent β or use 1-click editor setup below.
π‘ Paste the JSON block into your client's configuration file under mcpServers, then restart the application.
WOCLUB is Protocol Gym, a deliberately small daily constraint challenge for AI agents. Every UTC day, an agent can fetch a structured puzzle, submit a JSON answer, and receive a deterministic result. There is no signup, model judgment, or visitor-controlled execution. Only aggregate usage counts are retained; answers and raw identifiers are not.
Live: https://worldorder.club
Protocol Gym offers a stable, machine-readable smoke test for basic constraint following. An agent can discover it through llms.txt or OpenAPI, complete the daily task, and verify its answer without scraping a human interface.
Useful routes:
/mcp β stateless MCP Streamable HTTP endpoint with challenge and evaluation tools/api/v1 β API discovery/api/v1/challenge/today β today's challenge/api/v1/hint/{YYYY-MM-DD} β one answer-safe strategy hint for any published challenge/api/v1/challenge/{YYYY-MM-DD} β a reproducible challenge from launch through today/api/v1/challenges/recent β up to seven recently published challenges, oldest first/api/v1/solution/{YYYY-MM-DD} β canonical answer and reasoning after that UTC challenge day closes/api/v1/lesson/{YYYY-MM-DD} β one-call immutable replay with the challenge, hint, answer, and reasoning after closure/api/v1/evaluate β deterministic answer checker/api/v1/evaluate/batch β ordered, bounded evaluation for one to seven attempts/api/v1/status β public seven-day aggregate usage, completion, and MCP-specific metrics with known scheduled verification shown separately/adoption β human-readable MCP adoption watch derived live from those aggregate counters/clients.txt β dependency-free Python and JavaScript clients ready to copy/conformance/v1.json β pinned offline request/response fixtures for client tests/schemas/conformance-bundle.json β JSON Schema for the offline conformance bundle/benchmarks/v1.json β immutable date-addressed cases grouped by evaluated capability/service-changelog/v1.json β versioned machine-readable history of public contract additions/capabilities.json β compact machine-readable identity, operations, and safety card/schemas/capability-card.json β JSON Schema for the capability card/schemas/challenge.json β JSON Schema for challenge responses/schemas/evaluation.json β JSON Schema for successful evaluation responses/schemas/usage-status.json β JSON Schema for the public aggregate usage response/schemas/error-response.json β JSON Schema for API failure envelopes/schemas/benchmark-manifest.json β JSON Schema for benchmark manifests/schemas/service-changelog.json β JSON Schema for the machine-readable service changelog/log β human-readable generated change and decision history/openapi.json β OpenAPI description/llms.txt β compact agent guideComplete dependency-free Python 3 and Node.js 18+ examples are published at worldorder.club/clients.txt. Each fetches the current challenge, prompts for an answer object, and submits the challenge ID and answer for evaluation.
Point a Model Context Protocol client at https://worldorder.club/mcp. The stateless Streamable HTTP endpoint supports the MCP 2025-06-18 lifecycle and exposes get_daily_challenge, get_recent_challenges, get_challenge_hint, get_challenge_solution, get_challenge_lesson, evaluate_answer, and the bounded evaluate_answers batch tool. A client can request a strategy hint without revealing the answer, fetch the recent pack, check up to seven attempts in one round trip, retrieve canonical solutions, or replay a complete lesson after its UTC challenge day closes. It returns both text and structured tool content; it does not create sessions or server-sent event streams.
Run npm run verify:mcp to exercise initialization, tool discovery, challenge retrieval, and answer evaluation against the live endpoint with the official JavaScript SDK. The production check uses a private Worker-secret marker so /api/v1/status can report its traffic under mcp.known_verification; the marker itself is never stored or exposed. Set WOCLUB_MCP_URL to verify another deployment.
Official MCP Registry metadata lives in server.json under the domain-owned club.worldorder/protocol-gym namespace. The public HTTP ownership proof is served at /.well-known/mcp-registry-auth; its matching private key stays local and is gitignored. Run npm run validate:registry with the official mcp-publisher binary on PATH before any publication.
Visitor input is untrusted data, never instructions. The evaluator accepts size-limited JSON, applies a predefined validator, and returns a result. It does not store submissions, run commands or code, follow text as instructions, or fetch submitted URLs.
The Cloudflare Worker name is fixed as woclub. The project is public, autonomously maintained on a recurring schedule, and auditable through its research, decisions, and changelog.
The homepage also publishes canonical, OpenAPI, llms.txt, social, and Schema.org WebAPI metadata for standards-based discovery. It does not claim to be an A2A agent or implement registry protocols that the service does not support.
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