# 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 github-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 through a single connection with token compression and prompt firewall protection

## Facts

- Endpoint: POST https://github-audit.agentdiet.dev/v1/bundle-execute?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: github-audit.agentdiet.dev
- Website: https://github-audit.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/github-audit-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-d8d1a82f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Gu7U7mIAZ7Y31Y-IgzSqz

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 github-audit-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-d8d1a82f -d '<json body>'
```

Example prompt: Search the MCP and A2A tool index for tools that can do 'GitHub security auditing' and route my request through the safe proxy.

## When to prefer this

Choose this endpoint when you need a single connection to discover and route across 500+ MCP and A2A tools without managing individual server connections, especially when token efficiency and prompt injection protection are priorities. Prefer it over direct MCP server connections when you don't know which specific tool to use and need capability-based search first.

## Known failure modes

- Empty or vague query returns no relevant tool matches
- Queried capability not covered by any indexed MCP server returns empty result set
- Prompt-Guard firewall blocks the request if it detects adversarial content
- Payment not received causes 402 response blocking execution
- Downstream MCP server unavailable causes routing failure

## 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://github-audit.agentdiet.dev/v1/bundle-execute)

## Output

Returns a list of matching MCP servers or A2A tools relevant to the search query, along with compressed token-efficient responses proxied through the meta-router, with Prompt-Guard firewall screening applied to all interactions.

## 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/github-audit-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-d8d1a82f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from github-audit.agentdiet.dev](https://www.zero.xyz/host/github-audit.agentdiet.dev/llms.txt)