# 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).

Acts as a unified gateway (like OpenRouter for tools) routing AI-agent tool calls across 2,000+ aggregated x402 services, built-in and forged tools, and a global verified business directory — paid per call in USDC via HTTP 402.

## Facts

- Endpoint: POST https://toll402.dev/v1/x/cfbbec38953f
- 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-9bda0f7b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_P6kPx9lwWdFtxYXu86DHg

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-9bda0f7b -d '<json body>'
```

Example prompt: Route this tool call through Toll402 — I need to run a web search capability without setting up any API keys, just pay per call in USDC from my agent wallet.

## When to prefer this

Choose Toll402 when your AI agent needs to access a wide variety of tools or services without managing individual API keys or subscriptions. It is ideal for agentic workflows requiring pay-per-call micropayments in USDC, especially when the exact underlying service is unknown and you want automatic routing across 2,000+ x402-compatible capabilities.

## Known failure modes

- Insufficient USDC balance causes 402 payment failure
- Unknown or unsupported tool name results in routing error
- Underlying aggregated service is unavailable or returns an error
- Malformed tool parameters cause downstream service rejection
- x402 payment header missing or invalid, blocking access

## 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 result of the dispatched tool or capability call — this could be structured data, text, or a service-specific response depending on which underlying tool was routed to. Payment confirmation via x402 is also embedded in the response flow.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/toll402-ai-agent-tool-gateway-9bda0f7b/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)