# x402broker MCP Router

> x402broker MCP Router 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).

Discovers and routes queries across 500+ MCP servers and A2A tools via a single connection with token compression and prompt-injection firewall

## Facts

- Endpoint: GET https://x402broker.com/v1/mcp-router?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402, MPP
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402broker-mcp-router-7f6e13ce
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xZUybS6AjD7thnGEu4cSE

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402broker-mcp-router-7f6e13ce
```

Example prompt: Search across all the MCP servers and A2A tools you have indexed and find me the best tool available for scraping web pages — return the top matches with their capabilities.

## When to prefer this

Use this endpoint when an AI agent needs to discover the right tool or MCP server from a large index without maintaining connections to hundreds of individual servers. Ideal when you want a single-connection meta-router that compresses responses for token efficiency and screens incoming queries through a prompt-injection firewall.

## Known failure modes

- Query string too vague — returns no relevant matches
- MCP server index unavailable — upstream indexing failure
- Payment not processed — x402 payment required before routing
- Rate limit exceeded — too many queries per time window
- No tools match the specified capability — returns empty result set

## 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/mcp-router)

## Output

Returns a list of matching MCP servers or A2A tools from an index of 500+ entries, including endpoint metadata, capabilities, and routing information, with 85% token compression applied to reduce context overhead.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query"
 ],
 "properties": {
  "query": {
   "type": "string",
   "minLength": 1,
   "description": "Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402broker-mcp-router-7f6e13ce/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402broker.com](https://www.zero.xyz/host/x402broker.com/llms.txt)