Verify a SIWE signature
API Docs with browser clientVerify a signed SIWE message, consume its nonce, and return a session token plus stored session details.
Authorization
apiKeyAuth In: header
Request Body
application/json
Hex-encoded signature produced for the SIWE message.
^0x[a-fA-F0-9]+$EIP-4361 Sign-In with Ethereum message payload.
Expected signer wallet address used to cross-check the SIWE message.
Response Body
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
curl -X POST "https://api.namefi.dev/v-next/siwe/verify" \ -H "Content-Type: application/json" \ -d '{ "signature": "string", "message": { "address": "string", "chainId": -9007199254740991, "domain": "string", "nonce": "string", "uri": "http://example.com", "version": "1" }, "address": "string" }'{
"valid": true,
"recoveredAddress": null,
"token": "b5507016-7da2-4777-a161-1e8042a6a377",
"session": {
"address": null,
"chainId": -9007199254740991,
"createdAt": "2019-08-24T14:15:22Z",
"maxAgeSeconds": -9007199254740991
}
}{
"defined": true,
"code": "BAD_REQUEST",
"status": 400,
"message": "Bad Request",
"data": null
}{
"defined": true,
"code": "UNAUTHORIZED",
"status": 401,
"message": "Unauthorized",
"data": null
}{
"defined": true,
"code": "FORBIDDEN",
"status": 403,
"message": "Forbidden",
"data": null
}{
"defined": true,
"code": "NOT_FOUND",
"status": 404,
"message": "Not Found",
"data": null
}{
"defined": true,
"code": "NOT_ACCEPTABLE",
"status": 406,
"message": "Not Acceptable",
"data": null
}{
"defined": true,
"code": "TIMEOUT",
"status": 408,
"message": "Request Timeout",
"data": null
}{
"defined": true,
"code": "CONFLICT",
"status": 409,
"message": "Conflict",
"data": null
}{
"defined": true,
"code": "PRECONDITION_FAILED",
"status": 412,
"message": "Precondition Failed",
"data": null
}{
"defined": true,
"code": "TOO_MANY_REQUESTS",
"status": 429,
"message": "Too Many Requests",
"data": null
}{
"defined": true,
"code": "INTERNAL_SERVER_ERROR",
"status": 500,
"message": "Internal Server Error",
"data": null
}Prepare a SIWE message GET
Verify that a previously issued nonce still exists and return the canonical SIWE message payload to sign.
Get NFSC balance GET
Retrieve NFSC (Namefi Stable Coin) balance across all supported blockchain chains for the authenticated user's linked wallet addresses. Returns both raw contract values and human-readable USD amounts.