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Server signers are the standard for server-side and agent operations. Unlike API key signers — which used your primary API key as the signing mechanism itself — server signers are dedicated signing credentials, giving you stronger isolation and a smaller blast radius if credentials are ever rotated or compromised.API key signers are deprecated and will be removed in a future release. To take advantage of the improved security model, migrate any server-side or agent workflows to server signers.
In earlier versions of the Crossmint Wallets API, an API key could be used directly as an operational signer. This model is deprecated in favor of dedicated signer types that separate authentication (API key) from transaction authorization (signer key). For a conceptual overview, see API key in the Wallet Signers guide.

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Configuration

import { useWallet } from '@crossmint/client-sdk-react-ui';

const { getOrCreateWallet } = useWallet();

const wallet = await getOrCreateWallet({
    chain: "evm",
    signer: {
        type: "api-key",
    },
});