📬Has XMTP

Learn how to check if Farcaster name or ID has enabled XMTP and resolve Farcaster name or ID for XMTP messaging.

Airstack provides easy-to-use APIs for enriching Farcaster applications and integrating on-chain and off-chain data with Farcaster.

XMTP is an Ethereum-based messaging protocol.

Developers building with XMTP can use Airstack to enable Farcaster users to seamlessly message Ethereum, ENS, Lens, and Farcaster users with XMTP-enabled addresses.

Airstack is utilized to:

1. check if users have XMTP enabled (required in order to receive XMTP messages)

2. resolve Farcaster usernames to 0x Ethereum addresses and vice versa.

In this guide you will learn how to use Airstack to:

• Check if Farcaster User Has XMTP Enabled

• Bulk Check Farcaster Users Have XMTP Enabled

• Get all 0x addresses of Farcaster user(s)

• Get all Farcasters owned by 0x address

Pre-requisites

• An Airstack account (free)

• Basic knowledge of GraphQL

Get Started

JavaScript/TypeScript/Python

If you are using JavaScript/TypeScript or Python, Install the Airstack SDK:

npm

React

npm install @airstack/airstack-react

Node

npm install @airstack/node

yarn

React

yarn add @airstack/airstack-react

Node

yarn add @airstack/node

pnpm

React

pnpm install @airstack/airstack-react

Node

pnpm install @airstack/node

pip

pip install airstack asyncio

Then, add the following snippets to your code:

React

import { init, useQuery } from "@airstack/airstack-react";

init("YOUR_AIRSTACK_API_KEY");

const query = "YOUR_QUERY"; // Replace with GraphQL Query

const Component = () => {
  const { data, loading, error } = useQuery(query);

  if (loading) {
    return <p>Loading...</p>;
  }

  if (error) {
    return <p>Error: {error.message}</p>;
  }

  // Render your component using the data returned by the query
};

Node

import { init, fetchQuery } from "@airstack/airstack-react";

init("YOUR_AIRSTACK_API_KEY");

const query = "YOUR_QUERY"; // Replace with GraphQL Query

const { data, error } = fetchQuery(query);

console.log("data:", data);
console.log("error:", error);

Python

import asyncio
from airstack.execute_query import AirstackClient

api_client = AirstackClient(api_key="YOUR_AIRSTACK_API_KEY")

query = "YOUR_QUERY" # Replace with GraphQL Query

async def main():
    execute_query_client = api_client.create_execute_query_object(
        query=query)

    query_response = await execute_query_client.execute_query()
    print(query_response.data)

asyncio.run(main())

Other Programming Languages

To access the Airstack APIs in other languages, you can use https://api.airstack.xyz/gql as your GraphQL endpoint.

🤖 AI Natural Language​

Airstack provides an AI solution for you to build GraphQL queries to fulfill your use case easily. You can find the AI prompt of each query in the demo's caption or title for yourself to try.

Airstack AI (Demo)

Check Farcaster Has XMTP Enabled

You can check if a Farcaster has XMTP enabled or not by providing either the Farcaster name or ID:

Try Demo

https://app.airstack.xyz/DTyOZg/tHpIYqruY8

Check Farcaster has XMTP enabled (Demo)

Code

Query

query MyQuery {
  XMTPs(input: {blockchain: ALL, filter: {owner: {_eq: "fc_fname:vbuterin"}}}) {
    XMTP {
      isXMTPEnabled
    }
  }
}

Response

{
  "data": {
    "XMTPs": {
      "XMTP": [
        {
          "isXMTPEnabled": true
        }
      ]
    }
  }
}

Bulk Check Farcasters Have XMTP Enabled

You can bulk check a list of Farcasters have XMTP enabled or not:

Try Demo

https://app.airstack.xyz/DTyOZg/uf0qK2hOaJ

Check Farcaster Name and ID have XMTP enabled (Demo)

Code

Query

query MyQuery {
  XMTPs(input: {blockchain: ALL, filter: {owner: {_in: ["fc_fname:betashop.eth", "fc_fid:5650"]}}}) {
    XMTP {
      isXMTPEnabled
      owner {
        socials {
          dappName
          profileName
        }
      }
    }
  }
}

Response

{
  "data": {
    "XMTPs": {
      "XMTP": [
        {
          "isXMTPEnabled": true
        },
        {
          "isXMTPEnabled": true
        }
      ]
    }
  }
}

Get all 0x addresses of Farcaster user(s)

You can resolve an array of Farcaster user(s) to their 0x addresses:

Try Demo

https://app.airstack.xyz/DTyOZg/rQQVTG8laa

Show 0x addresses of Farcaster user name dwr.eth and user ID 1

Code

Query

query GetAddressesOfFarcasters {
  Socials(
    input: {filter: {identity: {_in: ["fc_fname:dwr.eth", "fc_fid:1"]}}, blockchain: ethereum}
  ) {
    Social {
      userAssociatedAddresses
    }
  }
}

Response

{
  "data": {
    "Socials": {
      "Social": [
        {
          "userAssociatedAddresses": [
            "0x8773442740c17c9d0f0b87022c722f9a136206ed",
            "0x86924c37a93734e8611eb081238928a9d18a63c0"
          ]
        },
        {
          "userAssociatedAddresses": [
            "0xd7029bdea1c17493893aafe29aad69ef892b8ff2"
          ]
        },
        {
          "userAssociatedAddresses": [
            "0xb877f7bb52d28f06e60f557c00a56225124b357f",
            "0xa14b4c95b5247199d74c5578531b4887ca5e4909",
            "0xd7029bdea1c17493893aafe29aad69ef892b8ff2",
            "0x74232bf61e994655592747e20bdf6fa9b9476f79"
          ]
        }
      ]
    }
  }
}

Get all Farcasters owned by 0x address

You can resolve any 0x address to their Farcaster accounts:

Try Demo

https://app.airstack.xyz/DTyOZg/LZDbcSC7LK

Show Farcasters owned by Ethereum address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045

Code

Query

query GetFarcastersOfEthereumAddress {
  Socials(
    input: {filter: {identity: {_in: ["0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"]}, dappName: {_eq: farcaster}}, blockchain: ethereum}
  ) {
    Social {
      profileName
      userId
      userAssociatedAddresses
    }
  }
}

Response

{
  "data": {
    "Socials": {
      "Social": [
        {
          "profileName": "vitalik.eth",
          "userId": "5650",
          "userAssociatedAddresses": [
            "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
            "0xadd746be46ff36f10c81d6e3ba282537f4c68077"
          ]
        }
      ]
    }
  }
}

Developer Support

If you have any questions or need help regarding checking if Farcaster(s) have XMTP enabled, please join our Airstack's Telegram group.

More Resources

• Has XMTP

  • Check Farcaster
  • Bulk Check Farcasters
• Resolve Farcaster Users
• Farcaster Resolver Demo
• XMTPs API Reference
• Socials API Reference
• Domains API Reference