# 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).

Routes AI-agent tool calls to a unified gateway aggregating 2,000+ x402 pay-per-call services, built-in and third-party tools, and a verified business directory — paid in USDC via HTTP 402 with no signup or API key required.

## Facts

- Endpoint: POST https://toll402.dev/v1/x/9dea805fa2e8
- 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-ddd9ca68
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4bwHLjX3HCpdnu0Qr7BV0

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-ddd9ca68 -d '<json body>'
```

Example prompt: Use Toll402 to call one of its aggregated x402 tools — I want to query the global verified business directory for coffee shops near me, paying per call in USDC with no API key.

## When to prefer this

Choose Toll402 when an AI agent needs access to a broad ecosystem of tools and services without managing multiple API keys or subscriptions — especially when the agent already supports x402/USDC payments on Base and needs a single, unified gateway to route diverse capability calls through one endpoint.

## Known failure modes

- Insufficient USDC balance causes 402 payment failure and no tool execution
- Unknown or unsupported tool name returns an error with no result
- Underlying third-party x402 service is unavailable causing a downstream timeout
- Malformed tool parameters result in a validation error before payment
- Payment network congestion on Base delays or fails the micropayment settlement

## 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 aggregated tool or x402 service was invoked — could be business directory records, built-in tool outputs, or third-party capability results — along with any payment confirmation metadata from the x402 protocol.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/toll402-ai-agent-tool-gateway-ddd9ca68/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)