> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mag3nt.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Project tokens (ERC-20)

> Register an ERC-20 (including B20) so DIRECT credentials can accept that asset on Native Token Rails.

A **project token** is an ERC-20 contract you register with Mag3nt so a DIRECT credential can accept x402 / AP2 / MPP payments in that asset.

B20 tokens are ERC-20 compatible. You register them the same way (`source: b20`), including Credential Tokens (CT) you launched on Mag3nt. Bring-your-own ERC-20s use `source: byo`.

The dashboard panel for this is labeled **Native Tokens**. The API and database use the name project tokens. Both refer to this registry.

Do not confuse this with chain-native gas assets (ETH, SOL). Those are not registered here and are not used as DIRECT funding assets.

## API surface

| Method | Path                   | Purpose                                                                |
| ------ | ---------------------- | ---------------------------------------------------------------------- |
| `POST` | `/api/tokens/register` | Register a contract on Base or Base Sepolia (`source`: `byo` or `b20`) |
| `GET`  | `/api/tokens`          | List tokens you have registered                                        |

Registration does not mint supply. It only tells Mag3nt which ERC-20 can back DIRECT credentials and pay links for your account.

When issuing a credential with `settlement_mode: DIRECT`, use a registered token (or USDC) as the funding asset so prepare and settle resolve the correct on-chain destination.

## Related

* [Membership](/concepts/membership) for DIRECT quotas
* [Credential Tokens](/concepts/credential-tokens) if the asset is a Mag3nt-launched CT
* [Fee meter](/concepts/fee-meter) for prepaid MAG3NT overage fees