x402broker B2A Router — Universal MCP & A2A Meta-Router

x402

x402broker B2A Router — Universal MCP & A2A Meta-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).

Single-connection meta-router that indexes and proxies 500+ MCP servers and A2A tools with token compression and prompt-injection firewall

Price / call$0.01

Seller volume →—

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/b2a-router)

Output

A compressed, token-efficient list of matching MCP servers and/or A2A tools relevant to the query, including metadata, routing info, and safe-proxied access details. Results are filtered through a Prompt-Guard firewall to block prompt-injection risks.

Example use cases

Discover MCP tools for a new agent

“I'm building an agent that needs to send emails and look up stock prices — search the MCP and A2A tool index to find the best tools available for both of those tasks.”

Single-connection agent swarm routing

“My swarm of agents all need access to different specialized tools — route each of their requests through one connection to the right MCP server without me having to manage 500 separate integrations.”

Find a tool with prompt-injection safety

“I need to discover an MCP server that does PDF extraction, but I want the results filtered through the Prompt-Guard firewall so I don't accidentally expose my agent to prompt-injection attacks.”

Technical details

Endpoint

GEThttps://x402broker.com/v1/b2a-router?utm_source=zero.xyz

When to prefer

Choose this endpoint when an AI agent needs to discover or route to any of hundreds of MCP servers or A2A tools through a single connection, especially when token efficiency matters (85% compression) or when security against prompt injection is required. Prefer over manually managing multiple MCP connections or building custom tool registries.

Side effects

Query too vague returns broad or unhelpful tool list
No matching tools found for a highly specific query
Prompt-Guard firewall may block legitimate but ambiguous queries
Rate limiting or payment failure at $0.01 USDC per call
Downstream MCP server unavailability reduces result completeness

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"
}

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