{"service":"MatrixFold","version":"0.4.0","category":"agentic workflow risk guardrail","summary":"Paid x402 API for AI agents that need deterministic guardrails before social publishing or crypto token-risk workflows.","bestFor":["Preflight an X/Twitter POST /2/tweets request before publishing.","Generate a crypto token risk brief before wallet approval, listing, or trading workflows.","Convert a validated X payload into a retryable request body.","Classify X API create-post failures into retryable and non-retryable actions.","Repair invalid social post payloads with machine-readable rule codes and diffs."],"notFor":["Managing user social accounts.","Posting directly to X, LinkedIn, Xiaohongshu, or any other platform.","Providing investment advice, price predictions, custody, or trade execution.","Guaranteeing platform acceptance, account permissions, API plan access, rate limits, or moderation outcomes."],"recommendedFirstCall":{"endpoint":"POST /v1/preflight","priceUsd":"$0.004","useWhen":"Your agent has an X post and wants a retryable POST /2/tweets payload before calling X.","freeDemo":"GET /v1/demo/preflight"},"paidEndpoints":[{"method":"POST","path":"/v1/preflight","endpoint":"POST /v1/preflight","priceUsd":"$0.004","purpose":"Preflight X/Twitter text posts and return ready, blockingReasons, retryableRequest, retryPolicy, and caveats."},{"method":"POST","path":"/v1/explain-failure","endpoint":"POST /v1/explain-failure","priceUsd":"$0.004","purpose":"Explain failed X create-post responses and return reasonCode, retryability, retryPolicy, and repair hints."},{"method":"POST","path":"/v1/crypto/risk-brief","endpoint":"POST /v1/crypto/risk-brief","priceUsd":"$0.02","purpose":"Generate an explainable crypto token risk brief from market/liquidity and token-security data before wallet approval, listing, or trading workflows."},{"method":"POST","path":"/v1/repair","endpoint":"POST /v1/repair","priceUsd":"$0.006","purpose":"Repair invalid social publishing payloads and return corrected JSON plus a machine-readable diff."},{"method":"POST","path":"/v1/validate","endpoint":"POST /v1/validate","priceUsd":"$0.003","purpose":"Validate X, LinkedIn, or Xiaohongshu payloads against deterministic publishing guardrails."},{"method":"POST","path":"/v1/compile","endpoint":"POST /v1/compile","priceUsd":"$0.01","purpose":"Compile source content into social publishing payloads with validation reports."}],"freeEndpoints":["GET /","GET /health","GET /v1/capabilities","GET /v1/rules","GET /v1/examples","GET /v1/demo/preflight","GET /v1/demo/crypto-risk-brief","GET /openapi.json","GET /llms.txt","GET /apis.json","GET /.well-known/x402","GET /.well-known/api-catalog"],"buyerSearchIntents":["X POST /2/tweets preflight","crypto token risk scanner","wallet approval preflight","Base token risk brief","Solana token rug risk report","Twitter API payload validator","social publishing guardrail","agent publishing retryable request","social post repair API","X API failure explainer"],"docs":{"openapi":"/openapi.json","examples":"/v1/examples","rules":"/v1/rules","buyerQuickstart":"https://github.com/jackinehu/MatrixFold/blob/main/docs/BUYER_QUICKSTART.md"}}