# Toll402 Gateway — Universal AI Agent Tool Hub

> Toll402 Gateway — Universal AI Agent Tool Hub is a paid API for AI agents from toll402.dev, paid per call via x402, $0.00115/call, status unknown (last checked 2026-09-15).

Acts as a single gateway aggregating 2,000+ x402 services, built-in and forged tools, and a global verified business directory, all callable per-use in USDC with no signup or API key

## Facts

- Endpoint: POST https://toll402.dev/v1/x/7c82ba4e4eda
- Price: $0.00115/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/toll402-gateway-universal-ai-agent-tool-hub-67746048
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-4g6VhSvh4OWXe8gWE1KI

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 toll402-gateway-universal-ai-agent-tool-hub-67746048 -d '<json body>'
```

Example prompt: Use Toll402 to fetch the Wikipedia summary for 'Large Language Model' and return the canonical URL — charge my USDC wallet per call, no API key needed.

## When to prefer this

Choose Toll402 when your AI agent needs access to a wide variety of tools (web fetch, business directory, validators, Wikipedia, custom forged tools) without managing separate API keys or subscriptions for each — ideal for autonomous agents that pay per call in USDC and need to dynamically select capabilities at runtime.

## Known failure modes

- Unknown or unsupported tool identifier returns 404 or error payload
- Insufficient USDC balance causes 402 Payment Required with no result
- Malformed request payload causes 400 Bad Request
- Requested third-party service temporarily unavailable returns upstream error
- Invalid x402 payment header causes authentication/payment failure

## How this service works

The OpenRouter for AI-agent tools: one gateway, one wallet, every capability. Built-in tools, forged tools, a global verified business directory and 2,000+ aggregated x402 services, all paid per call in USDC via x402 (HTTP 402). No signup, no API key.

## Output

Returns the response from the dispatched underlying tool or service — could be structured JSON (business profile, validation result, extracted text, directory listing, etc.) depending on which capability was invoked, along with x402 payment confirmation metadata.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/toll402-gateway-universal-ai-agent-tool-hub-67746048/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from toll402.dev](https://www.zero.xyz/host/toll402.dev/llms.txt)