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x402broker Tool Search
x402
x402broker Tool Search is a paid API for AI agents from x402broker.com, paid per call via x402 or MPP, $0.01/call, status unknown (last checked 2026-10-20).
Searches and discovers MCP servers and A2A tools by natural language query across an index of 500+ tools
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/tool-search)
Output
Returns a ranked list of matching MCP servers and A2A tools from the 500+ tool index, including tool names, capability descriptions, endpoint URLs, and connection metadata relevant to the query.
Example use cases
Discovering PDF processing tools
“Search x402broker for any MCP servers or A2A tools that can extract text or structured data from PDF files — I need to pick one for my document pipeline.”
Finding email-sending agent tools
“Look up available A2A or MCP tools in x402broker's index that can send emails or handle SMTP — I want to wire one into my agent workflow.”
Locating code execution capabilities
“Search x402broker for tools that support code execution or a sandboxed runtime environment — I need one my AI agent can call to run Python snippets.”
Technical details
Endpoint
GEThttps://x402broker.com/v1/tool-search?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to dynamically discover new tools or MCP servers at runtime rather than relying on a hardcoded list. Especially useful when building agent orchestrators or swarm routers that need to find the right specialized tool for a subtask on the fly, or when exploring what A2A/MCP capabilities exist across a broad index.
Side effects
- Missing or empty query parameter returns no results or validation error
- Query too vague returns low-relevance or empty matches
- Service unavailable if index backend is down
- Payment not processed or x402 auth fails resulting in 402 response
- Rate limiting if too many requests in a short window
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"
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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