# Toll402 Universal AI-Agent Gateway

> Toll402 Universal AI-Agent 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).

Routes agent tool calls to 2,000+ aggregated x402 services and built-in tools via a single gateway endpoint, paid per call in USDC

## Facts

- Endpoint: POST https://toll402.dev/v1/x/41bb0146ee0a
- 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-universal-ai-agent-gateway-0dd5f527
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iTWjQ1b6SEeIxdXHmZYX2

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-universal-ai-agent-gateway-0dd5f527 -d '<json body>'
```

Example prompt: Route this tool call through Toll402 — I need to look up a verified business by name and check if its website is live, paying per call in USDC with no API key required.

## When to prefer this

Choose Toll402 when your agent needs to call diverse, heterogeneous tools or services without managing individual API keys or subscriptions, and when you want unified per-call USDC micropayments via x402. Ideal for agents that need broad capability coverage across many domains from a single endpoint.

## Known failure modes

- Insufficient USDC balance causes payment failure and 402 response
- No matching service found for the requested capability
- Underlying aggregated service is unavailable or returns an error
- Malformed input parameters cause routing failure
- Payment header missing or invalid x402 format

## 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 structured output from whichever underlying tool or x402 service was matched and invoked — could be JSON data, lookup results, verification status, or any capability-specific response depending on what was routed.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/toll402-universal-ai-agent-gateway-0dd5f527/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)