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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 2026-10-23).
Searches and routes across 500+ MCP servers and A2A tools via a single connection, with token compression and prompt-injection firewall protection.
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/security-audit-dag)
Output
Returns a list of matching MCP servers or A2A tools relevant to the query, with token-compressed metadata and firewall-filtered results indicating tool capabilities, endpoints, and routing recommendations.
Example use cases
Discover tools for GitHub security auditing
“Search across all indexed MCP servers and A2A tools for anything that can do GitHub security audits or code vulnerability scanning, and give me the top matches with compressed output.”
Route agent to company enrichment tool
“I need to find an MCP server or A2A tool that handles B2B company enrichment and lead data — can you query the meta-router and tell me which one to use?”
Verify an endpoint URL before calling it
“Before my agent calls this endpoint URL, can you run it through the tool discovery router to verify it's indexed and safe to proxy through the Prompt-Guard firewall?”
Technical details
Endpoint
POSThttps://x402broker.com/v1/security-audit-dag?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to discover which of 500+ MCP servers or A2A tools to use for a given capability, especially when token efficiency matters or when prompt-injection safety is a concern. It is preferable over manual tool registries when the agent operates in a multi-tool swarm and needs a single-connection routing layer.
Side effects
- Empty or too-broad query returns low-relevance results
- Unrecognized endpoint URL returns no match
- Token compression may drop edge-case metadata fields
- Prompt-Guard firewall may block queries containing injection-like patterns
- 503 or timeout if underlying MCP index is unavailable
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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