Sign Developer Platform

Sign Developer Platform, or SDP, gives developers API access to various Sign Protocol services, such as paying for decentralized data storage.

General Usage

Visit Sign Developer Platform and create an API key with the appropriate scopes. To fund the account balance to pay for API key usage, you can purchase credits with USDC (1 USDC = 100 Credits).

Once the account is properly funded, you can call the following API endpoints:

• Testnet: https://testnet-rpc.sign.global/api

• Mainnet: https://mainnet-rpc.sign.global/api

Make sure the proper header is attached in your API request:

Headers = {
	'x-sign-api-key': 'API key'
}

Alternatively, you can use our SDK (>= 0.9.7) which has been updated to work with API keys.

Uploading Data to Decentralized Storage

To upload data to decentralized storage, use the following URL: POST {endpoint}/sp/offchain-storage

and request:

{
    "storageType": 'arweave' | 'ipfs' | 'greenfield',
    "data": "your data"
}

The appropriate amount of fees will be deducted from the account. The total amount of fees paid is the sum of the base fee and size fee.

Platform	Base Fee	Size Fee (per byte)
Arweave	0.01	0.0000000006
BNB Greenfield	0.01	0.00000000004
IPFS	0.01	0.000000000002

Please note the above fees may be adjusted without notice. All fee units are in Credits.