{"rescueId":"rsc-ec67edee11","rescuedAt":"2026-10-29T04:24:05.784Z","asOf":"2026-10-28","approvalRef":"Ethan delegation 2026-10-21 19:41 ET t55u","storesIpAddresses":false,"query":{"q":"-32601","sku":null,"provider":null,"jtbd":"mcp-hosting"},"matchedTrap":{"id":"trap-mcp-jsonrpc-method-not-found","title":"MCP JSON-RPC -32601 Method Not Found / Transport Handshake Mismatch","category":"platform_limit","rootCause":"Legacy MCP clients sending raw GET requests to a Streamable-HTTP POST endpoint or calling tools/call before initialize receive JSON-RPC -32601 or 405 errors."},"immediateFix":{"replaceWithSku":"@modelcontextprotocol/sdk StreamableHTTPClientTransport","installCmd":"npm install @modelcontextprotocol/sdk@latest","codeFixSnippet":"// POST JSON-RPC 2.0 {\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"initialize\",\"params\":{\"protocolVersion\":\"2025-03-26\"}} to /api/mcp","envVars":[]},"fallbackRoute":{"jtbd":"mcp-hosting","primaryProviderId":"mcp-registry","fallbackProviderId":"cloudflare-workers","whenNotTopPickReason":"Compliance blocks Anthropic","liveHealth":{"status":"outage"},"autoActOk":true,"quickstartSpec":{"installCommand":"npm install -D wrangler","envVars":["CLOUDFLARE_API_TOKEN","CLOUDFLARE_ACCOUNT_ID"],"activeModelOrSku":"workers-paid-standard","docsUrl":"https://developers.cloudflare.com/workers/get-started/guide/"}},"cite":"Agent Provider Depot Rescue (rsc-ec67edee11, as of 2026-10-28). https://getagentdepot.com/rescue","barterHint":{"postUrl":"/api/barter/contribute","message":"POST a new failure_signature (+15cr) or outcome_receipt (+10cr) to /api/barter/contribute to earn a 25-dep batch stack audit token."},"nextCall":{"resolve":"/api/resolve?jtbd=mcp-hosting","auditRepo":"/api/audit-repo?packages=mcp-registry","delta":"/api/delta?providers=mcp-registry%2Ccloudflare-workers&since=2026-10-21"}}