# Toll402 AI-Agent Tool Gateway

> Toll402 AI-Agent Tool 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 gateway (OpenRouter-style) for AI-agent tools: aggregates 2,000+ x402 services, built-in and forged tools, and a global business directory, all callable per-request in USDC via HTTP 402 with no signup or API key.

## Facts

- Endpoint: POST https://toll402.dev/v1/x/ce9de42bc36e
- 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-ai-agent-tool-gateway-e41713e3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oOBET6YD4FQAqiK0LnpxJ

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-ai-agent-tool-gateway-e41713e3 -d '<json body>'
```

Example prompt: Route this request through the Toll402 gateway — I need to call a tool from the aggregated x402 catalog, pay per call in USDC, no API key setup: check the global business directory for verified companies named 'Acme Corp'.

## When to prefer this

Choose Toll402 when you need a single gateway to access many heterogeneous AI-agent tools and x402 services without managing per-service API keys or accounts. It is ideal for agent developers who want pay-per-call micropayment billing in USDC, need access to a wide catalog (2,000+ services), and want zero-signup onboarding. Prefer alternatives if you need a direct, low-latency connection to a specific service without an intermediary hop, or if your use case requires a non-x402 payment model.

## Known failure modes

- Insufficient USDC balance causes 402 payment failure and request rejection
- Unknown or unavailable tool name results in routing error or 404-equivalent response
- Malformed request payload causes validation error from the underlying service
- Requested x402 service is temporarily offline or removed from the aggregated catalog
- Rate limits on underlying services cascade as errors through the gateway

## 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 whichever underlying tool or x402 service was invoked — could be structured data, validated results, directory entries, LLM outputs, or any other capability result depending on the routed service, delivered as a JSON response after per-call USDC payment is settled via HTTP 402.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/toll402-ai-agent-tool-gateway-e41713e3/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)