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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 2026-10-21).
Searches an index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered routing results through a single meta-router connection
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 a structured object containing matched MCP servers and A2A tools relevant to the query, with token-compressed tool manifests (85% compression claimed), safety-filtered results via Prompt-Guard firewall, and routing metadata to connect through the meta-router; may also include SLA or compliance signals for queried endpoint URLs.
Example use cases
Finding a GitHub security audit tool
“Search the MCP tool index for anything that can do GitHub security audits or code vulnerability scanning — I want to know which servers are available and how to route to them.”
Discovering on-chain risk analysis agents
“Can you search through the A2A and MCP tool directory for anything related to on-chain risk or DEX token intelligence? I need to find the right tool to plug into my agent pipeline.”
Verifying an MCP endpoint before use
“Before I connect to this MCP server at https://some-mcp-server.example.com, can you check whether it's in the index and what its compliance and routing info looks like?”
Technical details
Endpoint
GEThttps://x402broker.com/v1/workflows/execute?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool is best suited for a given capability, rather than hardcoding a specific tool. Ideal for meta-agents or orchestrators that need to route tasks across a broad tool ecosystem without maintaining their own index. Also useful for verifying whether a specific MCP endpoint URL is known, compliant, and routable through a safe proxy with built-in prompt injection defense.
Side effects
- Empty query string returns validation error (minLength:1 required)
- Query matches no indexed tools — returns empty results set
- Queried endpoint URL is not in the index — returns no match
- Service unavailability or upstream MCP index errors returning generic 5xx
- x402 payment not processed — 402 Payment Required response blocking access
- Ambiguous query returns low-relevance or mixed-category tool matches
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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