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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 2026-10-21).
Searches a meta-index of 500+ MCP servers and A2A tools to find the right agent capability by query, routing requests through a token-compressed, prompt-firewall-protected proxy.
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/swarm-router)
Output
Returns a structured object describing matching MCP servers or A2A tools from the 500+ indexed registry, including tool metadata with 85% token-compressed descriptions and routing information, filtered through the Prompt-Guard firewall.
Example use cases
Routing SEC filing research tasks
“I need to find an MCP server or A2A tool in the swarm index that can pull SEC filings — search for 'SEC filings' and tell me what's available.”
Discovering GitHub audit capabilities
“Search the agent tool index for anything related to 'GitHub security' or 'GitHub audit' — I want to know which MCP servers can review my repo for vulnerabilities.”
Verifying an external agent endpoint
“Can you check this endpoint URL against the swarm router to verify it's a valid, indexed MCP tool before I route traffic to it?”
Technical details
Endpoint
GEThttps://onchain-risk.agentdiet.dev/v1/swarm-router?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to use for a given capability at runtime, rather than hard-coding a specific tool. Ideal for multi-agent orchestration, swarm routing, and scenarios where the right downstream tool is unknown ahead of time. The 85% token compression makes it especially valuable when operating under tight context budgets.
Side effects
- Empty or too-generic query returns no matching tools
- Queried endpoint URL not found in index — returns empty or not-found result
- Malformed query string causes 400 validation error
- x402 payment not satisfied — returns HTTP 402 requiring USDC payment
- Rate limit or SLA exceeded — returns 429 or 503
- Index out of date — recently added MCP servers may not appear
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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