{"uid":"cap_0Ed5fTpHJ4zL0H3deSCzi","slug":"onchain-risk-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-b43f5ca5","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://onchain-risk.agentdiet.dev/v1/tool-broker)","url":"https://onchain-risk.agentdiet.dev/v1/tool-broker?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_Yi-z67CpUcnjBsZXFecs0","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"onchain-risk.agentdiet.dev","brandSlug":"onchain-risk-agentdiet-dev-mpp","brandBaseUrl":"https://onchain-risk.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches and routes queries across 500+ indexed MCP servers and A2A tools through a single connection with token compression and prompt safety filtering.","exampleAgentPrompt":"Search the MCP tool broker for any indexed servers that handle SEC filings or company enrichment — I need a single-connection discovery query to find what's available.","exampleUseCases":[{"title":"Discovering SEC filing tools for an agent","prompt":"Search the tool broker for MCP servers or A2A agents that can pull SEC filings — I want to find what's indexed and available before I wire anything up."},{"title":"Finding a GitHub security auditing tool","prompt":"Can you query the tool broker index for any MCP endpoints that handle GitHub security audits or code vulnerability scanning?"},{"title":"Routing to a context compression server","prompt":"Look up 'context compression' in the MCP tool broker — I need to find an available server that can compress my agent's token usage before making further calls."}],"resultDescription":"Returns a list of matching MCP servers and A2A tools from the 500+ indexed catalog, including compressed tool descriptions (85% token reduction), capability metadata, endpoint URLs, and safety-filtered routing information via the Prompt-Guard firewall.","failureModes":["Empty or vague query returns no matches or low-confidence results","Queried capability not indexed in the current catalog returns empty result set","Endpoint URL verification for an unknown URL returns unverified status","Rate limiting or payment failure (HTTP 402) blocks the request","Prompt-Guard firewall may block queries flagged as unsafe or adversarial"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover and route to external MCP servers or A2A tools without maintaining its own index. Ideal for agentic swarm architectures, tool orchestration layers, or when token budget is a concern and 85% compression is valuable. Prefer this over manual tool registration when the target capability is unknown or when safety-filtering of tool outputs is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:47:47.716Z","isFirstParty":false,"canonicalSlug":"onchain-risk-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-0c8aadb4"}