---
title: "Verify Signature"
method: POST
path: "/api/v1/wallet/verify"
tags: ["Wallet Auth"]
---

# Verify Signature

`POST /api/v1/wallet/verify`

## Request

- Base URL: `https://cryptodataapi.com`
- URL: `https://cryptodataapi.com/api/v1/wallet/verify`
- Auth: none declared

Verify an EIP-191 signature and return/create an API key.

## Request body

- VerifyRequest
  - `wallet_address` string, required
  - `signature` string, required
  - `nonce` string, required
  - `message` string, nullable

## Response `200`

Successful Response

- VerifyResponse
  - `api_key` string, required
  - `tier` string, required
  - `expires_at` string, date-time, nullable

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/cryptodataapi/apis/crypto-data-api.md) · [All operations](https://skmtc.dev/cryptodataapi/apis/crypto-data-api/llms.txt) · [OpenAPI document](https://skmtc.dev/cryptodataapi/apis/crypto-data-api/revisions/8628b754ca81?raw)