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Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router
Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router is a paid API for AI agents from x402broker.com, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-28).
Meta-router that searches and proxies 500+ MCP servers and A2A tools via a single connection, with 85% token compression and a Prompt-Guard firewall.
Price / call$0.01
Success—
StatusUnknown
How this service works
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://x402broker.com/v1/workflows/execute)
Output
Returns matched MCP servers and A2A tools relevant to the search query, with token-compressed responses (up to 85% reduction), Prompt-Guard firewall filtering applied, and optionally a proxied result from the selected tool endpoint.
Example use cases
Discovering tools for SEC filings
“Search your tool index for MCP servers or A2A agents that can pull SEC EDGAR filings — I need to find the right tool to query 10-K and 10-Q data for public companies.”
Routing a query through a safe proxy
“I want to send a query about on-chain risk analysis through your safe-proxy router — can you find the best available MCP server for that and route my request through the Prompt-Guard firewall?”
Finding lead enrichment capabilities
“Search your 500+ tool index for anything that handles B2B lead enrichment or company data — I want to discover what's available and get a compressed summary of the best matches.”
Technical details
Endpoint
POSThttps://x402broker.com/v1/workflows/execute?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to discover, compare, or proxy calls to any of 500+ MCP servers or A2A tools without managing individual connections. It is the right choice when you want a single-connection meta-router with built-in token compression and prompt safety filtering, especially when you don't know which specific tool to call and need capability-based discovery first.
Side effects
- Empty or vague query returns no useful tool matches
- Query too broad matches hundreds of tools with low relevance scores
- Prompt-Guard firewall blocks a query flagged as potentially unsafe
- Target MCP server is offline or rate-limited, causing proxy failure
- Malformed query string causes a 400 validation error
- Payment not included or invalid causes a 402 payment required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| queryrequired | string | Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify |
Output
Schema · Response
{
"type": "object"
}Reviews
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Zero review prompt (fires after every successful call)
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