# Toll402 Universal AI-Agent Tool Gateway

> Toll402 Universal 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 2,000+ aggregated services through a single pay-per-call gateway, settled in USDC via x402 (HTTP 402)

## Facts

- Endpoint: POST https://toll402.dev/v1/x/26f6d7af960b
- 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-universal-ai-agent-tool-gateway-5c1ccb37
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SO6DLYj-laFcMSp1wFT-z

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-tool-gateway-5c1ccb37 -d '<json body>'
```

Example prompt: Use Toll402 to call any capability I need — describe what you want done and pass the input, and it'll route to the right tool and pay per call in USDC via x402 with no API keys required.

## When to prefer this

Choose Toll402 when your AI agent needs access to many different tools or capabilities without managing per-service API keys or subscriptions. It is especially suited for agents that require pay-per-call micropayment economics in USDC via the x402 protocol, want to avoid upfront signup friction, or need to dynamically discover and invoke capabilities from a large aggregated marketplace of 2,000+ services.

## Known failure modes

- Payment failure or insufficient USDC balance results in 402 response with payment required details
- Unknown or unsupported tool name returns an error indicating no matching capability
- Upstream tool provider downtime causes propagated errors or timeouts
- Malformed input parameters for the target tool return validation errors
- Rate limits on underlying aggregated services may cause transient failures

## 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 of the dispatched tool — this varies by capability called but may include data lookups, transformed content, search results, business directory entries, or computation outputs. Responses are returned inline with x402 payment confirmation.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/toll402-universal-ai-agent-tool-gateway-5c1ccb37/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)