{"uid":"cap_8C_E_XGgcapfpBpKFNNzJ","slug":"hn-pulse-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-3f0cad1d","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/bundle-execute)","url":"https://hn-pulse.agentdiet.dev/v1/bundle-execute?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_v14sPoT-BKM1p2RbXynFn","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 a meta-index of 500+ MCP servers and A2A tools by capability query, returning compressed tool metadata through a prompt-guarded proxy router","exampleAgentPrompt":"Search the MCP and A2A tool index for anything that can handle 'SEC filings' or 'company enrichment' — I want to find what tools are available and route to the best one.","exampleUseCases":[{"title":"Find MCP server for GitHub audits","prompt":"Search your tool index for any MCP servers or A2A agents that can audit GitHub repositories for supply-chain risks and license issues — I need to know which ones are available."},{"title":"Discover on-chain risk tools","prompt":"Look through your 500+ MCP tool registry and find me everything that covers on-chain risk or smart contract security so I can pick the right one for my DeFi workflow."},{"title":"Route agent query via safe proxy","prompt":"I need to call a context compression tool for my agent swarm — can you search the meta-router for 'context compression' and route me to the best match safely?"}],"resultDescription":"Returns a compressed list of matching MCP servers and A2A tools relevant to the query, including tool descriptors, capability metadata, and routing information, filtered through the Prompt-Guard firewall to block injection attacks. Response is token-compressed at up to 85% to minimize LLM context usage.","failureModes":["Empty or too-broad query returns low-relevance results","Query matches no indexed tools — empty result set returned","Prompt injection detected by firewall — request blocked","Payment required (HTTP 402) if x402 micropayment not provided","Idempotency key collision if same UUID reused across different queries","Backend MCP server index temporarily unavailable — 503 or timeout"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability without hardcoding tool lists. Especially valuable for agent swarms that need to route tasks at runtime, or when you want a single connection point that indexes hundreds of external tools with built-in prompt injection protection and token compression. Prefer over manual tool catalogs or direct MCP discovery when you need breadth, safety filtering, and low token overhead in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T00:35:12.161Z","isFirstParty":false,"canonicalSlug":"hn-pulse-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-45369aae"}