Blockchain Compatibility for Web3 Services APIs

This topic lists the support for Circle API endpoints on the various blockchains you can use with Circle Web3 Services. The tables in each section list the Web3 Services APIs and endpoints for a product, and indicate whether they are supported on the specified blockchains. For each blockchain included, support applies to both the Testnet and Mainnet networks for that chain. The Wallet Signing Service column indicates whether the service supports the APIs.

User-controlled wallets

API Category	Endpoint	Polygon	Ethereum	Avalanche	Solana	Wallet Signing Service
Users and PINs	POST /user/initialize	Yes	Yes	Yes	Yes	Yes
Wallets	POST /user/wallets	Yes	Yes	Yes	Yes	Yes
	GET /wallets	Yes	Yes	Yes	Yes	Yes
	GET /wallets/{id}	Yes	Yes	Yes	Yes	Yes
	PUT /wallets/{id}	Yes	Yes	Yes	Yes	Yes
	GET /wallets/{id}/balances	Yes	Yes	Yes	Yes	No
	GET /wallets/{id}/nfts	Yes	Yes	Yes	Coming soon	No
Transactions	POST /user/transactions/transfer	Yes	Yes	Yes	Yes	No
	POST /user/transactions/{id}/accelerate	Yes	Yes	Yes	No	No
	POST /user/transactions/{id}/cancel	Yes	Yes	Yes	No	No
	POST /user/transactions/contractExecution	Yes	Yes	Yes	Coming soon	No
	GET /transactions	Yes	Yes	Yes	Yes	No
	GET /transactions/{id}	Yes	Yes	Yes	Yes	No
	POST /transactions/transfer/estimateFee	Yes	Yes	Yes	Yes	No
	POST /transactions/contractExecution/estimateFee	Yes	Yes	Yes	Yes	No
	POST /transactions/validateAddress	Yes	Yes	Yes	Yes	Yes
Token Lookup	GET /tokens/{id}	Yes	Yes	Yes	Yes	No
Signing	POST /user/sign/message	Yes	Yes	Yes	Yes	Yes
	POST /user/sign/typedData	Yes	Yes	Yes	No	Yes
	POST /user/sign/transaction	Coming soon	Coming soon	Coming soon	Coming soon	Yes

Developer-controlled wallets

API Category	Endpoint	Polygon	Ethereum	Avalanche	Solana	Wallet Signing Service
WalletSets	POST / developer/walletSets	Yes	Yes	Yes	Yes	Coming soon
	PUT /developer/walletSets/{id}	Yes	Yes	Yes	Yes	Coming soon
	GET /walletSets	Yes	Yes	Yes	Yes	Coming soon
	GET /walletSets/{id}	Yes	Yes	Yes	Yes	Coming soon
Wallets	POST /developer/wallets	Yes	Yes	Yes	Yes	Coming soon
	GET /wallets	Yes	Yes	Yes	Yes	Coming soon
	GET /wallets/{id}	Yes	Yes	Yes	Yes	Coming soon
	PUT /wallets/{id}	Yes	Yes	Yes	Yes	Coming soon
	GET /wallets/{id}/balances	Yes	Yes	Yes	Yes	No
	GET /wallets/{id}/nfts	Yes	Yes	Yes	Coming soon	No
Transactions	POST /developer/transactions/transfer	Yes	Yes	Yes	Yes	No
	POST /developer/transactions/{id}/accelerate	Yes	Yes	Yes	No	No
	POST /developer/transactions/{id}/cancel	Yes	Yes	Yes	No	No
	POST /developer/transactions/contractExecution	Yes	Yes	Yes	Coming soon	No
	GET /transactions	Yes	Yes	Yes	Yes	No
	GET /transactions/{id}	Yes	Yes	Yes	Yes	No
	POST /transactions/transfer/estimateFee	Yes	Yes	Yes	Yes	No
	POST /transactions/contractExecution/estimateFee	Yes	Yes	Yes	Yes	No
	POST /transactions/validateAddress	Yes	Yes	Yes	Yes	Yes
Token Lookup	GET /tokens/{id}	Yes	Yes	Yes	Yes	No
Signing	POST /developer/sign/message	Yes	Yes	Coming soon	Yes	No
	POST /developer/sign/typedData	Yes	Yes	Coming soon	No	Coming soon
	POST /developer/sign/transaction	Coming soon	Coming soon	Coming soon	Coming soon	Coming soon

Smart Contract Platform

API Category	Endpoint	Polygon	Ethereum	Avalanche	Solana	Wallet Signing Service
Deploy / Import	POST /contracts/import	Yes	Yes	No	Coming soon	No
	POST /contracts/deploy	Yes	Yes	No	Coming soon	No
	POST /contracts/deploy/estimateFee	Yes	Yes	No	Coming soon	No
Interact	POST /contracts/{id}/read	Yes	Yes	No	Coming soon	No
View / Update	GET /contracts	Yes	Yes	No	Coming soon	No
	GET /contracts/{id}	Yes	Yes	No	Coming soon	No
	PATCH /contracts/{id}	Yes	Yes	No	Coming soon	No
Templates	POST /templates/{id}/deploy	Yes	Yes	No	Coming soon	No
	POST /templates/{id}/deploy/estimateFee	Yes	Yes	No	Coming soon	No