{"uid":"cap_aFclO2RZvjiXC5RiK56DS","slug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-d39e592b","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://workflows.agentdiet.dev/v1/broker/execute)","url":"https://workflows.agentdiet.dev/v1/broker/execute?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_iKyWnoGwA9XB0Y1XJe7ej","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"workflows.agentdiet.dev","brandSlug":"workflows-agentdiet-dev-mpp","brandBaseUrl":"https://workflows.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches an index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered results via a single meta-router connection","exampleAgentPrompt":"Search the MCP and A2A tool index for any servers that handle 'SEC filings' or 'company enrichment' — I want to find available tools I can route my agent through for those capabilities.","exampleUseCases":[{"title":"Finding a GitHub security audit tool","prompt":"Search the MCP broker for any tools that can do GitHub security auditing or repository scanning — I need to plug one into my agent pipeline."},{"title":"Discovering context compression servers","prompt":"Can you query the A2A and MCP tool index for 'context compression' — I want to find servers that reduce token usage before I route my agent swarm through them?"},{"title":"Validating a specific endpoint URL","prompt":"Check the MCP broker index for this endpoint URL — I want to verify it's listed, safe-proxied, and compliant before my agent starts calling it."}],"resultDescription":"Returns a compressed, Prompt-Guard-filtered list of matching MCP servers or A2A tools from an index of 500+, including tool metadata, routing suggestions, and endpoint validation results. Responses use up to 85% token compression to minimize context overhead.","failureModes":["Missing or empty 'query' parameter returns a validation error","Query matches no indexed tools, returning an empty result set","Endpoint URL submitted for verification is not indexed or unreachable","Rate limiting or payment failure (HTTP 402) if x402 microtransaction is not completed","Network timeout reaching the broker at agentdiet.dev","Firewall (Prompt-Guard) blocks a query flagged as potentially adversarial"],"whenToPreferThis":"Choose this endpoint when an agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability, rather than hardcoding tool connections. Especially useful in swarm orchestration scenarios where the agent must find, validate, and proxy-route to a new capability at runtime. The 85% token compression and built-in Prompt-Guard firewall make it preferable over raw tool registries when token budget and safety are concerns.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:01.528Z","isFirstParty":false,"canonicalSlug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-9abf6654"}