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x402broker.com x402-Gateway
x402
x402broker.com x402-Gateway 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).
Meta-router that discovers and proxies 500+ MCP servers and A2A tools via a single connection with 85% token compression and prompt-injection 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/x402-gateway)
Output
Returns a list of matching MCP servers or A2A tools from the 500+ indexed services, including metadata about each tool, with 85% token compression applied to the output and prompt-injection filtering active on the response.
Example use cases
Discover tools for agent pipeline
“I'm building an AI agent pipeline and need to find all available MCP servers that handle web scraping — search the x402-gateway index and return what tools are available so I can pick the right one.”
Single-connection swarm routing
“My agent needs to delegate a task but I don't know which tool to use — query the meta-router for any A2A tools that do financial data lookup and give me back the top options with descriptions.”
Compressed tool catalog for context window
“I have a limited context window and need to browse available agent tools — use the x402-gateway to get a compressed list of MCP servers related to document processing so it fits without burning my tokens.”
Technical details
Endpoint
GEThttps://x402broker.com/v1/x402-gateway?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to discover which tools or MCP servers are available across a large index without making individual connections to each one, especially when token budget is constrained. Prefer it over direct MCP server calls when the right tool is unknown and discovery is the goal. Not suitable for executing a specific known tool — use it for exploration and routing decisions.
Side effects
- Query returns no matching tools if the search term is too niche or misspelled
- Payment of $0.01 USDC required per call — missing or failed payment returns 402 error
- Malicious or jailbreak-style queries may be blocked by Prompt-Guard firewall
- GET method with no query param returns generic index rather than targeted results
- Downstream MCP server unavailability may cause partial results
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
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