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

# x402 & Agents

> UTY and yUTY support EIP-3009 and EIP-2612 today across Base, Avalanche, and Katana. Hosted x402 endpoints are on the way.

# Agentic ready by design

UTY and yUTY are built to settle agent-initiated payments. The signature standards that the [x402 protocol](https://x402.org) and similar agentic flows depend on are implemented on the token contracts today, on every chain UTY and yUTY are deployed to.

## What you can use today

* **EIP-3009** — `transferWithAuthorization` and `receiveWithAuthorization`. An agent signs an authorization off-chain; a resource server or relayer submits it on-chain. This is the signature scheme x402 settles with.
* **EIP-2612** — `permit`. Off-chain approval signatures for adjacent flows that route through a contract rather than a direct transfer.

Both are available on UTY, yUTY, and the spoke OFTs on Base, Avalanche, and Katana.

**Signer caveat.** Authorization signatures are verified with ECDSA, so they must come from an EOA. Smart-account wallets that rely on ERC-1271 contract signatures (Coinbase Smart Wallet, Safe, ERC-4337 accounts) won't validate against the current token contracts. Smart-account signature support is on the roadmap.

## What's coming

* Hosted x402 endpoints operated by YieldPoint, so services can price and accept UTY and yUTY over HTTP without running their own facilitator.
* A listing on agentic.market so agents can discover UTY and yUTY as settlement assets.

Until the hosted endpoints land, the [Integration](/protocol/integration/overview) section documents the contract surface you need to wire EIP-3009 settlement directly.