# SEPBASE > Independent .sepbase names on Base Sepolia with manifest-first SDK, HTTP API, and verified identity reads. ## Integration - [Developer documentation](/developers): SDK, React, API, and guarded write examples. - [Deployment manifest](/.well-known/chain-name-service.json): Canonical chain, contract, asset, and endpoint discovery. - [Contract ABI](/abi/ChainNameService.json): ABI bytes verified by the manifest SHA-256 checksum. - [OpenAPI](/api/openapi.json): Read-only HTTP API contract. - [Blockscout handoff](/integrations/blockscout-bens.md): External BENS integration prerequisites and semantics. Load and validate the deployment manifest before use. Never hardcode chain IDs, suffixes, contract or token addresses, native currency, settlement symbol, base-unit precision, or token decimals.