# 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 2026-10-23).

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

## Facts

- Endpoint: POST https://llms-generator.agentdiet.dev/v1/b2b-osint-dag?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- 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-9781a9f5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5kxVmZjG75ovvspoOTk_4

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-9781a9f5 -d '<json body>'
```

Example prompt: Search the MCP and A2A tool index for servers that can handle 'SEC filings' so I can route my agent to the right capability without connecting to dozens of endpoints separately.

## When to prefer this

Use this endpoint when an agent needs to dynamically discover which MCP server or A2A tool to use for a given capability rather than hardcoding endpoint URLs. Prefer this over manual tool registries when you need to search across 500+ tools, when you want prompt firewall protection on routed calls, or when token budget is limited and you need compressed tool descriptions.

## Known failure modes

- Empty or too-vague query returns no matches or overly broad results
- Query for a very niche capability not yet indexed returns empty result set
- Prompt-Guard firewall blocks queries that resemble injection attempts
- Payment not processed (HTTP 402) if x402 micropayment header is missing or invalid
- Timeout if the meta-router is querying many upstream MCP servers simultaneously

## 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/b2b-osint-dag)

## Output

Returns a ranked list of matching MCP servers or A2A tool endpoints that satisfy the capability query, including tool metadata and routing information, with 85% token-compressed descriptions and filtered through a Prompt-Guard firewall to block malicious content.

## 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-9781a9f5/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)