# 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 for AI agents, providing access to built-in tools, forged tools, a global verified business directory, and 2,000+ aggregated x402 services, all paid in USDC via HTTP 402 with no signup or API key required.

## Facts

- Endpoint: POST https://toll402.dev/v1/x/46c2e8657f38
- 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-33e09f92
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oTyJ4pb4ZSNoUh9r5Ex-h

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-33e09f92 -d '<json body>'
```

Example prompt: Use Toll402 to call any tool or capability I need right now — pay per call in USDC via x402, no API key needed — and fetch me the top result from the global verified business directory for coffee shops in San Francisco.

## When to prefer this

Choose Toll402 when your AI agent needs access to a broad range of tools or x402 services without managing multiple API keys or subscriptions, and when you want a single USDC wallet to cover all pay-per-call costs. Ideal for agents that need dynamic, on-demand tool access across many domains with minimal setup.

## Known failure modes

- Insufficient USDC balance causes 402 Payment Required with no result
- Invalid or malformed x402 payment header rejected
- Requested tool or service not found in the aggregated catalog
- Downstream x402 service unavailable or timeout
- Unsupported capability or tool name returns error

## 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 the dispatched tool or aggregated x402 service call — which may include structured data, business directory entries, tool execution results, or capability responses — depending on the specific tool or service invoked through the gateway.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/toll402-ai-agent-tool-gateway-33e09f92/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)