# 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 2026-09-14).

Acts as a unified pay-per-call gateway aggregating 2,000+ AI-agent tools and x402 services, paid per call in USDC via HTTP 402 with no signup or API key required.

## Facts

- Endpoint: POST https://toll402.dev/v1/x/64e28dde9a24
- Price: $0.00115/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/toll402-ai-agent-tool-gateway-cf17a55f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6CcJmviEFxM-J3XFUlHy0

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-cf17a55f -d '<json body>'
```

Example prompt: Route this tool call through Toll402 — I want to use one of the aggregated x402 services and pay per call in USDC from my wallet, no API key needed.

## When to prefer this

Choose Toll402 when you need to access many different AI-agent tools or x402 services through a single endpoint without managing multiple API keys or accounts. It is especially useful for agents that already hold USDC on Base and want frictionless pay-per-call access to a large aggregated catalog of capabilities.

## Known failure modes

- Insufficient USDC balance causing HTTP 402 payment failure
- Invalid or unrecognized tool/capability identifier returning a 404
- Downstream service unavailability causing timeout or 503
- Malformed request body causing 400 Bad Request
- Payment facilitator rejection if wallet is not on a supported network

## 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

The response from the dispatched tool or aggregated x402 service, which varies by the specific capability invoked — could be structured data, a lookup result, enriched information, or a computed output, all returned after a per-call USDC payment is processed via HTTP 402.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/toll402-ai-agent-tool-gateway-cf17a55f/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)