# 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).

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

## Facts

- Endpoint: POST https://toll402.dev/v1/x/3becb5b085ff
- 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-5756f8ac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_la3WnlwxHrqxbF3Inyigb

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-5756f8ac -d '<json body>'
```

Example prompt: Use the Toll402 gateway to call a tool for me — route my request through their aggregated x402 service catalog and pay the per-call fee in USDC from my wallet, no API key needed.

## When to prefer this

Choose this endpoint when you need a single gateway to access a wide variety of AI-agent tools and x402 services without managing multiple API keys or subscriptions. It is ideal for agents that need to pay per call in USDC on Base, want access to 2,000+ aggregated capabilities including a verified business directory, and prefer a no-signup, crypto-native payment model over traditional API key billing.

## Known failure modes

- Insufficient USDC balance causes HTTP 402 payment failure
- Requested tool or service not found in the aggregated catalog
- Invalid tool parameters cause a 400 bad request
- Network or downstream service unavailability causes 503
- x402 payment header malformed or missing causes authentication failure

## 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 requested tool or aggregated x402 service — could be structured data, a lookup result, enriched information, or any capability result depending on which underlying tool was invoked, delivered as a JSON response after successful USDC micropayment via x402.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/toll402-ai-agent-tool-gateway-5756f8ac/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)