{"uid":"cap_AttobI6kMZhgJW9VMYAhM","slug":"hn-pulse-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-89cfa5b9","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://hn-pulse.agentdiet.dev/v1/security-audit-dag)","url":"https://hn-pulse.agentdiet.dev/v1/security-audit-dag?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_Asb97vMvN04zsMTvKoR_O","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"hn-pulse.agentdiet.dev","brandSlug":"hn-pulse-agentdiet-dev-mpp","brandBaseUrl":"https://hn-pulse.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches and routes to 500+ MCP servers and A2A tools via a single meta-router endpoint with token compression and prompt injection firewall","exampleAgentPrompt":"Search the MCP and A2A tool index for any servers or agents that can handle 'context compression' — I want to see what's available and route my next task through the best match.","exampleUseCases":[{"title":"Finding an MCP tool for SEC filings","prompt":"Search the tool registry for any MCP servers or A2A agents that can pull SEC filings or EDGAR data — I need to find the right tool before my agent pipeline runs."},{"title":"Routing swarm to GitHub security auditor","prompt":"Can you query the meta-router for tools capable of GitHub dependency and license security auditing? I want to wire up my swarm to the best available agent for that."},{"title":"Discovering email verification agents","prompt":"Search for any MCP servers or A2A tools in the index that handle email verification or B2B lead enrichment — list what's available so I can pick one for my workflow."}],"resultDescription":"Returns a list of matching MCP servers and A2A tools relevant to the query, with metadata about each tool's capabilities, compressed to reduce token usage, and filtered through a Prompt-Guard firewall to block injection attacks.","failureModes":["Empty query string returns validation error","No matching tools found for obscure or misspelled capability query","Firewall blocks query if it resembles a prompt injection attempt","Payment required (HTTP 402) if x402 credentials are not provided","Timeout if meta-router index is temporarily unavailable"],"whenToPreferThis":"Use this endpoint when an agent needs to dynamically discover which MCP server or A2A tool to use for a given capability, rather than hardcoding a specific tool. Ideal for swarm orchestration, multi-agent pipelines, or when the best tool for a task is not known in advance. The 85% token compression makes it efficient for agents operating under context limits.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T00:37:24.849Z","isFirstParty":false,"canonicalSlug":"hn-pulse-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-45369aae"}