{"uid":"cap_Ht6Y9pEKPKtCbFLjljsZl","slug":"json-repair-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-dfae096e","name":"Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router","description":"Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall. (Live x402 v2, IETF MPP & MCP endpoint at https://json-repair.agentdiet.dev/v1/x402-gateway)","url":"https://json-repair.agentdiet.dev/v1/x402-gateway?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["query"],"properties":{"query":{"type":"string","minLength":1,"description":"Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"0.01","displayCostAsset":"USD","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_UAackPYoFBcU5DtWL4jdT","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"json-repair.agentdiet.dev","brandSlug":"json-repair-agentdiet-dev-mpp","brandBaseUrl":"https://json-repair.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches an index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-screened tool metadata via a single meta-router connection.","exampleAgentPrompt":"Search the MCP tool index for servers that can handle 'SEC filings' — I need to find an available agent tool for that capability and want compressed, firewall-checked results.","exampleUseCases":[{"title":"Discovering a context compression tool","prompt":"Can you search the MCP tool index for anything that handles context compression? I want to find an available server I can plug into my agent pipeline."},{"title":"Finding GitHub security audit tools","prompt":"Look up what MCP servers or A2A tools are available for GitHub security scanning — I need something that can audit repos and check for supply-chain vulnerabilities."},{"title":"Verifying an endpoint before routing","prompt":"Can you check if this endpoint URL is listed and safe in the MCP index before I route my agent traffic through it: https://some-tool.example.com/v1/api?"}],"resultDescription":"Returns a compressed list of matching MCP servers or A2A tools relevant to the query, including tool names, capability summaries, and endpoint metadata. Results are filtered through a Prompt-Guard firewall to reduce prompt injection risk, and descriptions are token-compressed by approximately 85% for efficient agent consumption.","failureModes":["Empty or vague query returns no meaningful matches","Queried endpoint URL not present in the index returns a not-found status","Rate limiting or payment failure (x402) blocks the response","Index may lag behind newly published MCP servers not yet crawled","Prompt-Guard firewall may over-filter legitimate tool descriptions containing security-related terms"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to delegate a task to, rather than hard-coding a specific tool. Ideal for swarm orchestration, meta-agent routing, or when building agents that must self-select tools at runtime. Prefer over manual tool registries when you need firewall-filtered, token-compressed results across a large index of 500+ servers in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:45.943Z","isFirstParty":false,"canonicalSlug":"json-repair-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-870ea088"}