# 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 llms-generator.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Searches and routes to 500+ MCP servers and A2A tools via a single meta-router endpoint with token compression and prompt injection firewall

## Facts

- Endpoint: GET https://llms-generator.agentdiet.dev/v1/mesh/dispatch?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: llms-generator.agentdiet.dev
- Website: https://llms-generator.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/llms-generator-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-3549fef9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QCiAZWqOqS1VOSf3NxeSt

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability llms-generator-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-3549fef9
```

Example prompt: Search the MCP and A2A tool index for any available servers that can handle 'SEC filings' or 'company enrichment' — I want to see what's out there before I pick one to call.

## When to prefer this

Choose this endpoint when you need to dynamically discover which MCP server or A2A agent to call for a given capability, rather than hardcoding a specific tool. Ideal for agent orchestration pipelines that need to route tasks to the best available specialist tool from a large index, or when building swarm architectures that need to enumerate available capabilities before dispatching work.

## Known failure modes

- Empty query string returns validation error
- No matching tools found for obscure capability query
- Upstream MCP server index temporarily unavailable
- x402 payment failure blocks access
- Prompt-Guard firewall rejects query containing suspicious injection patterns
- Timeout if routing to slow downstream agents

## 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://llms-generator.agentdiet.dev/v1/mesh/dispatch)

## Output

Returns a list of matching MCP servers or A2A tool endpoints relevant to the search query, with compressed metadata about each tool's capabilities, likely including tool names, endpoint URLs, capability descriptions, and routing information — filtered through a Prompt-Guard firewall to prevent prompt injection.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query"
 ],
 "properties": {
  "query": {
   "type": "string",
   "minLength": 1,
   "description": "Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/llms-generator-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-3549fef9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from llms-generator.agentdiet.dev](https://www.zero.xyz/host/llms-generator.agentdiet.dev/llms.txt)