> ## Documentation Index
> Fetch the complete documentation index at: https://docs.formo.so/llms.txt
> Use this file to discover all available pages before exploring further.

# x402 / MPP

> Let AI agents call the Formo API and pay per request, with no API key required, using the x402 and MPP payment protocols.

AI agents can access Formo endpoints without a Workspace API key by paying per request through a payment gateway. Two protocols are supported:

* **[x402](https://www.x402.org/)** via `formo.x402.paysponge.com`: the agent pays 0.05 USDC per request on Base.
* **[MPP](https://mpp.dev/)** via `formo.mpp.paysponge.com`: the agent pays 0.05 USDC.e per request on Tempo.

In both cases the gateway issues a `402 Payment Required` challenge on the first request, and a compliant client handles the payment automatically. The response shape is identical to the standard, API-key authenticated endpoint.

## How it works

1. The agent sends a request to the gateway URL for the endpoint it wants.
2. The gateway responds with `402 Payment Required` and the payment terms.
3. A compliant x402 or MPP client signs and submits the payment, then retries.
4. The gateway proxies the request to Formo and returns the response.

## Supported endpoints

<Card title="Get Profile" icon="user" href="/api/profiles/get">
  Retrieve a comprehensive wallet profile by address, including onchain labels, token holdings, DeFi positions, web demographics, and lifecycle data.
</Card>