{"uid":"cap_9wuHK_2OOuOIRR0yOpWEO","slug":"alpha-stream-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-ed26ceb0","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://alpha-stream.agentdiet.dev/v1/tool-broker)","url":"https://alpha-stream.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_C-04Er7HgJKR_Ow6UkdKm","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"alpha-stream.agentdiet.dev","brandSlug":"alpha-stream-agentdiet-dev-mpp","brandBaseUrl":"https://alpha-stream.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches a meta-index of 500+ MCP servers and A2A tools by capability query and returns compressed, firewall-screened tool matches via a single connection","exampleAgentPrompt":"Search the MCP and A2A tool index for anything that handles 'SEC filings' or 'company enrichment' — I want to find available tools I can plug into my agent workflow.","exampleUseCases":[{"title":"Discovering tools for an agent pipeline","prompt":"I'm building a research agent and need to find all available MCP tools that handle GitHub security audits — can you search the tool index and show me what's out there?"},{"title":"Finding a prompt safety firewall tool","prompt":"I need a tool for my AI swarm that can screen out prompt injection attacks — search the MCP index for anything related to prompt firewall or content safety."},{"title":"Routing to a web distillation capability","prompt":"My agent needs to compress and distill web content before sending it to the LLM — find me MCP servers in the index that handle web distillation or context compression."}],"resultDescription":"Returns a list of matching MCP servers or A2A tools relevant to the capability query, with tool metadata that has been compressed (up to 85% token reduction) and screened through a Prompt-Guard firewall for safety. May also return compliance or verification data if an endpoint URL is submitted.","failureModes":["Empty results if query terms don't match any indexed tool","Query too vague returns noisy or irrelevant tool matches","Endpoint URL verification fails if the remote URL is unreachable","Rate limiting or 402 payment required if quota exceeded","Generic object response schema makes parsing results unpredictable"],"whenToPreferThis":"Use this endpoint when an agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability at runtime, especially when you want a single connection point that normalizes and compresses tool metadata across 500+ sources. Prefer this over manually curating tool lists or querying individual MCP directories when you need breadth of coverage, built-in prompt injection protection, or when token efficiency across tool descriptions matters.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:01.714Z","isFirstParty":false,"canonicalSlug":"alpha-stream-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-4c5998e1"}