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x402broker Agent Router
x402
x402broker Agent 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 to 500+ MCP servers and A2A tools via a single meta-router connection with token compression and prompt injection 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/agent-router)
Output
A list of matching MCP servers and A2A tools relevant to the query, with metadata about each tool's capabilities, compressed to reduce token overhead, and filtered through a prompt-injection firewall before delivery.
Example use cases
Discovering tools for a new agent pipeline
“I'm building an autonomous agent and need to find all available MCP servers that handle email deliverability checks — search the meta-router for 'email verification tools' and tell me what's available.”
Routing to domain OSINT capabilities
“My agent needs to inspect a domain's TLS certificates and security headers — use the agent router to find the best available A2A tool for 'domain OSINT and DNS reconnaissance'.”
Finding token-efficient web distillation tools
“I need to reduce HTML token bloat before feeding web pages into my LLM — search the broker router for 'web distillation' tools and return what MCP servers are indexed for that.”
Technical details
Endpoint
GEThttps://x402broker.com/v1/agent-router?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to dynamically discover which MCP servers or A2A tools exist for a given task without maintaining individual connections to each. Ideal for orchestrator agents that need to survey available capabilities at runtime, especially when token efficiency matters and prompt injection safety is a concern.
Side effects
- No matching tools found for the query — returns empty results
- Query parameter missing or malformed — returns 400 validation error
- Downstream MCP server unavailable — partial or degraded results returned
- Rate limit exceeded — returns 429 with retry guidance
- Prompt-Guard firewall blocks the query as potentially injected — returns rejection notice
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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