Affirm Affirm Checkout API Initialize and authorize Affirm checkout flows for online merchants. Documentation GitHub Documentation 📖 Documentation https://docs.affirm.com/developers Other Resources 🔗 GraphQL https://raw.githubusercontent.com/api-evangelist/affirm/refs/heads/main/graphql/affirm-graphql.md 🔗 APIsJSON https://raw.githubusercontent.com/api-evangelist/affirm/refs/heads/main/apis.yml