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First Call API

First Call API

This guide walks you through making your first API call with Misti. Before diving into specific endpoints, let's verify that your API key is working correctly.

ℹ️

All endpoints are accessible via GET requests and require an API key passed in the x-api-key header.

Verify Your API Key

Run this curl command to confirm your API key is valid.

curl -X GET "https://api.misti.app/v1/api-key/verify" \
  -H "x-api-key: YOUR_API_KEY"

If your API key is valid, you should receive:

{
    "valid": true
}
⚠️

If the response does not return "valid": true, double-check that your API key starts with msk_ and is correctly copied from your dashboard.

Get Token Supply

Now let's make a full request with code examples. This endpoint returns the total supply of an ERC20 token on a given chain.

cURL

curl -X GET \
  "https://api.misti.app/v1/erc20/supply?chain_id=1&token=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48" \
  -H "x-api-key: YOUR_API_KEY"

Python

import requests
 
url = "https://api.misti.app/v1/erc20/supply"
params = {
    "chain_id": 1,
    "token": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
}
headers = {
    "x-api-key": "YOUR_API_KEY",
}
 
response = requests.get(url, params=params, headers=headers)
data = response.json()
print(data)

JavaScript

const response = await fetch(
  "https://api.misti.app/v1/erc20/supply?chain_id=1&token=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
  {
    headers: {
      "x-api-key": "YOUR_API_KEY",
    },
  }
);
 
const data = await response.json();
console.log(data);

Response:
[
    {
        "token_address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
        "chain_id": 1,
        "total_supply": "40000000000000000000000"
    }
]

Next Steps

Now that your API key is working, explore the full API:

Getting an API KeyGas