# Toll402 Gateway

> Toll402 Gateway 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).

A unified pay-per-call AI agent tool gateway that aggregates 2,000+ x402 services, built-in tools, and a global business directory, payable per call in USDC via x402 with no signup or API key required.

## Facts

- Endpoint: POST https://toll402.dev/v1/x/b4afbe14e2a8
- 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-471ca0d4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3vZ6-U3p8AVf95kftK2fO

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-471ca0d4 -d '<json body>'
```

Example prompt: I need to call a tool through the Toll402 gateway — use my USDC wallet to pay per call and route my request to the business directory to find coffee shops near downtown Austin.

## When to prefer this

Choose Toll402 when you need to access multiple AI agent tools or data services without managing separate API keys or accounts, and want to pay per call in USDC via the x402 protocol. It is ideal for autonomous AI agents that need a single wallet, single endpoint, and broad tool coverage — especially when the specific tool needed (business directory, web scraper, crypto prices, HN stories, etc.) is already in the catalog. Prefer it over direct integrations when minimizing setup overhead and maximizing capability breadth is the priority.

## Known failure modes

- Insufficient USDC balance causes payment failure via x402 HTTP 402 response
- Requested tool or service not found in the 2,000+ catalog returns a 404 or routing error
- Underlying third-party service is unavailable causing a proxied error response
- Malformed request body causes a 400 validation error before routing
- Rate limits on specific underlying services may cause throttling responses

## 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 output of whichever underlying tool or service was invoked through the gateway — this could be structured JSON data, business directory results, web scraped content, crypto prices, or any other capability offered by the aggregated x402 service catalog. The specific response shape depends on the tool routed to.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/toll402-gateway-471ca0d4/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)