x402 networks and tokens

These are the tokens the official @x402/evm and @x402/svm packages (2.31) list by default. A quote that uses one of them works with official clients out of the box. The table is generated from those packages.

The name and version columns matter: for the exact scheme on EVM chains, a seller must put them in extra, and a buyer signs over them. The same token has different names on different networks, and a wrong one makes every payment fail with invalid_exact_evm_signature.

EVM networks

Network	Token	Address	name	version	Decimals
Ethereum (`eip155:1`)	USDC	`0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48`	`USD Coin`	`2`	6
`eip155:14`	USDT0	`0xe7cd86e13AC4309349F30B3435a9d337750fC82D`	`USD₮0`	`1`	6
`eip155:50`	USDC	`0xfA2958CB79b0491CC627c1557F441eF849Ca8eb1`	`USDC`	`2`	6
`eip155:51`	USDC	`0xb5AB69F7bBada22B28e79C8FFAECe55eF1c771D4`	`USDC`	`2`	6
Polygon (`eip155:137`)	USDC	`0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359`	`USD Coin`	`2`	6
Monad (`eip155:143`)	USDC	`0x754704Bc059F8C67012fEd69BC8A327a5aafb603`	`USDC`	`2`	6
`eip155:988`	USDT0	`0x779Ded0c9e1022225f8E0630b35a9b54bE713736`	`USDT0`	`1`	6
`eip155:1328`	USDC	`0x4fCF1784B31630811181f670Aea7A7bEF803eaED`	`USDC`	`2`	6
Sei (`eip155:1329`)	USDC	`0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392`	`USDC`	`2`	6
`eip155:2201`	USDT0	`0x78Cf24370174180738C5B8E352B6D14c83a6c9A9`	`USDT0`	`1`	6
`eip155:4326`	MegaUSD	`0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7`	`MegaUSD`	`1`	18
`eip155:4663`	USDG	`0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168`	`Global Dollar`	`1`	6
`eip155:5042`	USDC	`0x3600000000000000000000000000000000000000`	`USDC`	`2`	6
Base (`eip155:8453`)	USDC	`0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`	`USD Coin`	`2`	6
Monad (testnet) (`eip155:10143`)	USDC	`0x534b2f3A21130d7a60830c2Df862319e593943A3`	`USDC`	`2`	6
`eip155:31611`	mUSD	`0x118917a40FAF1CD7a13dB0Ef56C86De7973Ac503`	`Mezo USD`	`1`	18
`eip155:31612`	mUSD	`0xdD468A1DDc392dcdbEf6db6e34E89AA338F9F186`	`Mezo USD`	`1`	18
`eip155:36900`	USDC.e	`0x9cb8142aEBBcdc60AF7c97Af897A67A8f3CA71C2`	`USDC.e`	`2`	6
`eip155:38833`	USDC	`0xA5b8BF902b2844dA17d4506cc827F7F1681735E7`	`USDC`	`1`	6
Arbitrum One (`eip155:42161`)	USDC	`0xaf88d065e77c8cC2239327C5EDb3A432268e5831`	`USD Coin`	`2`	6
Celo (`eip155:42220`)	USAT	`0xD2ab3C9A02DBBAB236BfEC45D1d755DF4267F771`	`Tether America USD`	`1`	6
Celo (`eip155:42220`)	USDC	`0xcebA9300f2b948710d2653dD7B07f33A8B32118C`	`USDC`	`2`	6
Celo (`eip155:42220`)	USDT	`0x48065fbBE25f71C9282ddf5e1cD6D6A887483D5e`	`Tether USD`	`1`	6
`eip155:43111`	USDC.e	`0xad11a8BEb98bbf61dbb1aa0F6d6F2ECD87b35afA`	`Bridged USDC (Stargate)`	`2`	6
Avalanche (`eip155:43114`)	USDC	`0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E`	`USD Coin`	`2`	6
`eip155:72344`	SBC	`0x33ad9e4BD16B69B5BFdED37D8B5D9fF9aba014Fb`	`Stable Coin`	`1`	6
Base Sepolia (testnet) (`eip155:84532`)	USDC	`0x036CbD53842c5426634e7929541eC2318f3dCF7e`	`USDC`	`2`	6
`eip155:181228`	USDC.e	`0x401eCb1D350407f13ba348573E5630B83638E30D`	`Bridged USDC`	`2`	6
`eip155:190415`	USDC.e	`0x401eCb1D350407f13ba348573E5630B83638E30D`	`Bridged USDC`	`2`	6
Arbitrum Sepolia (testnet) (`eip155:421614`)	USDC	`0x75faf114eafb1BDbe2F0316DF893fd58CE46AA4d`	`USD Coin`	`2`	6
`eip155:723487`	SBC	`0x33ad9e4BD16B69B5BFdED37D8B5D9fF9aba014Fb`	`Stable Coin`	`1`	6
`eip155:743111`	USDC.e	`0xD47971C7F5B1067d25cd45d30b2c9eb60de96443`	`USDC.e`	`1`	6
`eip155:5042002`	USDC	`0x3600000000000000000000000000000000000000`	`USDC`	`2`	6
`eip155:11142220`	USDC	`0x01C5C0122039549AD1493B8220cABEdD739BC44E`	`USDC`	`2`	6

Solana

Network	Token	Mint address	Decimals
Solana (`solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp`)	USDC	`EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v`	6
Solana Devnet (testnet) (`solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1`)	USDC	`4zMMC9srt5Ri5X14GAgXhaHii3GnPAEERYPJgZJDncDU`	6

Solana quotes also need extra.feePayer, the facilitator's fee payer address. The official client refuses to build a payment without it.

Payment schemes

Scheme	What it does
`exact`	A fixed amount per request. The common case, and the one nearly every client and facilitator supports.
`upto`	The buyer authorises a maximum and the seller settles the amount actually used.
`batch-settlement`	Many small payments are accumulated and settled together.
`auth-capture`	Authorise first, capture later.

What this site covers

Feature	Coverage
Endpoint checker	Validates any x402 version 2 quote. Recognises every token above, shows its price, and flags a wrong `name` or `version` and a missing Solana fee payer. Also recognises legacy x402 version 1, Machine Payments Protocol challenges and Cloudflare pay-per-crawl prices.
Header decoder	Shows prices for every token above.
Paid audit	Adds on-chain checks on Base and Base Sepolia.
Test endpoints	Test USDC on Base Sepolia (testnet) and Solana Devnet with the `exact` scheme, plus one `upto` scenario on Base Sepolia. Pay scenarios can also charge real USDC on Base and Solana when real-money mode is on. No `batch-settlement` or `auth-capture` scenarios.