# Toll402 Gateway — AI Agent Tool Aggregator

> Toll402 Gateway — AI Agent Tool Aggregator 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).

Provides a single pay-per-call gateway to 2,000+ aggregated AI-agent tools and services, paid in USDC via x402 HTTP 402 protocol with no signup or API key required.

## Facts

- Endpoint: POST https://toll402.dev/v1/x/22d8fc76da10
- 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-gateway-ai-agent-tool-aggregator-eb50e8be
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XnI-44aPSb2Pwql8xURjt

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-gateway-ai-agent-tool-aggregator-eb50e8be -d '<json body>'
```

Example prompt: Use Toll402 to call one of its 2,000+ aggregated tools right now — I want to look up business info for 'Acme Corp' — just pay per call with my USDC wallet, no API key needed.

## When to prefer this

Choose this endpoint when an AI agent needs access to a wide variety of tools without managing individual API keys or subscriptions, and when USDC-based micropayments via x402 are already part of the agent's payment infrastructure. Ideal for agents that need to dynamically discover and call diverse capabilities — web access, data enrichment, business lookup, computation — through a single authenticated wallet.

## Known failure modes

- Insufficient USDC balance causes 402 payment failure and no result
- Unknown or invalid tool identifier returns an error indicating the tool is not found
- Malformed tool parameters result in a 400 bad request from the underlying service
- Underlying aggregated service is unavailable causing a timeout or 503
- Payment header missing or malformed causes authentication/payment rejection

## 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 service was invoked — e.g. business directory records, web content, computation results, or data transformations — depending on the specific tool dispatched through the gateway.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/toll402-gateway-ai-agent-tool-aggregator-eb50e8be/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)