> For the complete documentation index, see [llms.txt](https://developers.ethos.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.ethos.network/api-documentation/api-v2/signatures.md).

# Signatures

## POST /signatures/register-address

> Get signature for registering an address for an Ethos profile

```json
{"openapi":"3.1.0","info":{"title":"Ethos API","version":"v2"},"tags":[{"name":"signatures"}],"servers":[{"url":"https://api.ethos.network/api/v2"}],"security":[{"Authorization":[]}],"components":{"securitySchemes":{"Authorization":{"type":"http","scheme":"bearer"}},"schemas":{"error.BAD_REQUEST":{"type":"object","properties":{"message":{"type":"string","description":"The error message"},"code":{"type":"string","description":"The error code"},"issues":{"description":"An array of issues that were responsible for the error","type":"array","items":{"type":"object","properties":{"message":{"type":"string"}},"required":["message"],"additionalProperties":false}}},"required":["message","code"],"additionalProperties":false,"title":"Invalid input data error (400)","description":"The error information"},"error.UNAUTHORIZED":{"type":"object","properties":{"message":{"type":"string","description":"The error message"},"code":{"type":"string","description":"The error code"},"issues":{"description":"An array of issues that were responsible for the error","type":"array","items":{"type":"object","properties":{"message":{"type":"string"}},"required":["message"],"additionalProperties":false}}},"required":["message","code"],"additionalProperties":false,"title":"Authorization not provided error (401)","description":"The error information"},"error.FORBIDDEN":{"type":"object","properties":{"message":{"type":"string","description":"The error message"},"code":{"type":"string","description":"The error code"},"issues":{"description":"An array of issues that were responsible for the error","type":"array","items":{"type":"object","properties":{"message":{"type":"string"}},"required":["message"],"additionalProperties":false}}},"required":["message","code"],"additionalProperties":false,"title":"Insufficient access error (403)","description":"The error information"},"error.INTERNAL_SERVER_ERROR":{"type":"object","properties":{"message":{"type":"string","description":"The error message"},"code":{"type":"string","description":"The error code"},"issues":{"description":"An array of issues that were responsible for the error","type":"array","items":{"type":"object","properties":{"message":{"type":"string"}},"required":["message"],"additionalProperties":false}}},"required":["message","code"],"additionalProperties":false,"title":"Internal server error error (500)","description":"The error information"}}},"paths":{"/signatures/register-address":{"post":{"operationId":"signatures-registerAddress","summary":"Get signature for registering an address for an Ethos profile","tags":["signatures"],"parameters":[],"requestBody":{"required":true,"content":{"application/json":{"schema":{"type":"object","properties":{"type":{"type":"string","enum":["delegateXyz","embeddedWallet","externalWallet","smartWallet"]},"address":{"type":"string","description":"Ethereum address (0x-prefixed, 20 bytes)"}},"required":["type","address"]}}}},"responses":{"200":{"description":"Successful response","content":{"application/json":{"schema":{"type":"object","properties":{"randValue":{"type":"number"},"signature":{"type":"string"}},"required":["randValue","signature"],"additionalProperties":false}}}},"400":{"description":"Invalid input data","content":{"application/json":{"schema":{"$ref":"#/components/schemas/error.BAD_REQUEST"}}}},"401":{"description":"Authorization not provided","content":{"application/json":{"schema":{"$ref":"#/components/schemas/error.UNAUTHORIZED"}}}},"403":{"description":"Insufficient access","content":{"application/json":{"schema":{"$ref":"#/components/schemas/error.FORBIDDEN"}}}},"500":{"description":"Internal server error","content":{"application/json":{"schema":{"$ref":"#/components/schemas/error.INTERNAL_SERVER_ERROR"}}}}}}}}}
```