{"uid":"cap_LcsZkQecDUYmq1MbcRPyU","slug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-fda1231e","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://serp-extract.agentdiet.dev/v1/agent-router)","url":"https://serp-extract.agentdiet.dev/v1/agent-router?utm_source=zero.xyz","method":"POST","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_Vi0fCNlqS_xC_PWvdvWvK","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"serp-extract.agentdiet.dev","brandSlug":"serp-extract-agentdiet-dev-mpp","brandBaseUrl":"https://serp-extract.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches a meta-index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered tool matches via a single connection.","exampleAgentPrompt":"Search the agent tool index for any MCP servers or A2A tools that handle SEC filings or company enrichment, and give me the best matches with compressed metadata.","exampleUseCases":[{"title":"Swarm routing for agent capability gap","prompt":"My agent needs to find a tool that can do real-time DEX token intelligence — search the MCP and A2A tool index for the best match and return what's available."},{"title":"Discovering firewall-safe prompt tools","prompt":"Find me any indexed MCP servers or A2A tools that offer prompt firewall or prompt injection protection — I need to route my swarm through something safe."},{"title":"Verifying an endpoint before agent use","prompt":"Can you check whether this endpoint URL is indexed and verified in the agent tool registry: https://serp-extract.agentdiet.dev/v1/sec-filings?"}],"resultDescription":"Returns a compressed (up to 85% token reduction), firewall-screened list of matching MCP servers or A2A tools from a 500+ item index, including tool metadata, capability descriptions, and routing information relevant to the input query.","failureModes":["Empty or vague query returns no useful matches","Endpoint URL verification fails if the URL is not indexed","Payment not completed via x402 results in 402 response blocking access","Overly broad query returns too many low-relevance results","Prompt-Guard firewall may block queries containing injection-like patterns"],"whenToPreferThis":"Choose this endpoint when an AI agent or swarm needs to dynamically discover which MCP server or A2A tool to delegate a subtask to, especially when you don't know ahead of time what tools are available. It is preferable to hardcoding tool lists, and is ideal for multi-agent orchestration, capability gap detection, and safe proxying through a Prompt-Guard firewall.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:31:07.918Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-8d70db86"}