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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 x402-audit.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Searches across 500+ indexed MCP servers and A2A tools by capability query, returning compressed, firewall-filtered tool matches via a single meta-router connection.
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://x402-audit.agentdiet.dev/v1/security-audit-dag)
Output
Returns a list of matching MCP servers or A2A tools from a 500+ entry index, with token-compressed metadata (up to 85% reduction) and Prompt-Guard firewall filtering applied. Response is a generic JSON object containing matched tool descriptions, routing information, and any security flags.
Example use cases
Discovering tools for on-chain risk
“Search the swarm index for any MCP servers or A2A agents that can analyze on-chain risk or DEX token intelligence — what's available and what do they do?”
Finding GitHub security audit agents
“I need to find agents or MCP tools in the meta-router index that can run GitHub security audits — can you search for 'github security' and tell me what comes back?”
Routing through prompt firewall for safe calls
“Before my agent calls any external tool, I want to route through the prompt-guard firewall — can you query the safe-proxy for 'context compression' tools and return the filtered, token-compressed results?”
Technical details
Endpoint
GEThttps://x402-audit.agentdiet.dev/v1/security-audit-dag?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to discover which MCP servers or A2A agents support a particular capability across a large, aggregated index — especially when token efficiency matters (85% compression) or when you need prompt-injection protection via the built-in Prompt-Guard firewall. Prefer over individual MCP registries when you want a single connection point to search 500+ tools simultaneously.
Side effects
- Empty or vague query may return zero matches or low-relevance results
- Endpoint URL verification queries may fail if the target URL is unreachable
- Payment required (HTTP 402) if x402 micropayment header is missing or invalid
- Firewall may block or flag queries containing prompt-injection patterns
- Index may not reflect newly added MCP servers if not yet crawled
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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