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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 2026-10-23).
Meta-router that searches and proxies 500+ MCP servers and A2A tools via a single connection, with 85% token compression and prompt-injection firewall.
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/crypto-alpha-dag)
Output
Returns matching MCP server or A2A tool entries from a 500+ item index relevant to the query, with token-compressed metadata and safety-screened payloads. Response schema is a generic object containing discovered tool listings, endpoint details, and routing metadata.
Example use cases
Finding a crypto risk analysis tool
“Search the tool index for MCP servers that do on-chain crypto risk or DEX token intelligence — I want to find something I can plug into my agent pipeline.”
Discovering SEC filings capability
“I need to find an MCP tool that can pull SEC filings — can you search the meta-router index for 'SEC filings' and tell me what's available?”
Locating a prompt firewall tool
“Search the A2A tool registry for anything related to 'prompt injection' or 'jailbreak firewall' — I want to add safety screening to my agent swarm.”
Technical details
Endpoint
POSThttps://x402-audit.agentdiet.dev/v1/crypto-alpha-dag?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability rather than hardcoding a specific tool. It is especially useful for swarm orchestration, building tool-selection pipelines, or when the right downstream tool is unknown at design time. The built-in 85% token compression and prompt-injection firewall make it preferable over raw MCP server enumeration when safety and efficiency matter.
Side effects
- Query too vague — returns low-relevance results or empty match set
- Payment not received (x402) — endpoint returns 402 requiring USDC micropayment before proceeding
- Prompt-Guard firewall blocks query if it resembles an injection attempt
- Upstream MCP server unavailable — proxy returns degraded or partial results
- Rate limiting if idempotency key is reused across distinct requests
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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