The Sign Developer Platform gives builders a simple way to connect with Sign Protocol services through APIs. After creating an API key with the right permissions, developers can fund their account using $USDC where 1 USDC equals 100 credits. These credits are used to pay for requests and storage actions.
Once funded, developers can interact with both testnet and mainnet endpoints by adding their API key in the request header. There is also an SDK available that supports API key usage and makes integration easier.
To store data in decentralized networks, developers send a request to upload content to options like Arweave, IPFS, or Greenfield. Each upload uses credits based on a base fee and the size of the data. Fees may change over time, so tracking usage is important.
Sign Protocol is active across many blockchain networks, giving developers flexibility to build on different ecosystems. It supports both mainnet and testnet environments for safe testing and deployment.
A real example comes from @SignOfficial working with ZetaChain to manage a compliant airdrop. Users completed identity checks before claiming rewards, and their verification status was recorded using onchain attestations. This allowed secure and fair distribution while meeting compliance rules.
This system shows how identity, storage, and smart contracts can work together. With tools like SDP and credit payments using $SIGN, developers can build scalable and trusted Web3 applications.