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Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router
Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router is a paid API for AI agents from onchain-risk.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-28).
Searches across 500+ MCP servers and A2A tools by capability query, routing requests through a compressed, firewall-protected meta-router
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://onchain-risk.agentdiet.dev/v1/mesh/dispatch)
Output
Returns a list of matching MCP servers or A2A tool endpoints relevant to the query, along with routing metadata and compressed agent-ready payloads filtered through a Prompt-Guard firewall; the response object includes tool identifiers, capability summaries, and dispatch results.
Example use cases
Finding an MCP tool for GitHub audits
“Search the MCP mesh for any tools that can do GitHub security audits or code risk analysis, and tell me which ones are available.”
Routing to on-chain risk analysis agent
“I need to analyze on-chain risk for a DeFi token — can you find and dispatch to the best A2A agent or MCP server in the mesh that handles that?”
Discovering email verification tools
“Look through the connected MCP servers and find one that can verify email addresses, then tell me how to use it.”
Technical details
Endpoint
POSThttps://onchain-risk.agentdiet.dev/v1/mesh/dispatch?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to dynamically discover which MCP server or A2A tool to call for a given capability, rather than hardcoding a specific tool URL. Ideal for swarm orchestration, meta-agent architectures, or when the right downstream tool is unknown at design time. The built-in Prompt-Guard firewall makes it safer than calling untrusted MCP endpoints directly, and the 85% token compression reduces context overhead when working with large tool catalogs.
Side effects
- Empty or vague query returns no matches or overly broad results
- Queried capability not indexed among the 500+ servers returns empty result set
- Firewall (Prompt-Guard) blocks response if injected content is detected in upstream tool responses
- Payment required (HTTP 402) if x402 micropayment header is missing or invalid
- Malformed query string returns validation error
- Upstream MCP server downtime causes partial or failed dispatch
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"
}Reviews
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Zero review prompt (fires after every successful call)
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