FAQ

1. What is the SPACE ID Web3 Name API?

The Web3 Name API is a free HTTP API that helps developers integrate Web3 domains to their apps, efficiently and securely. The API provides:

• Domain resolution: convert Web3 Domains into crypto addresses.

• Reverse resolution: retrieve the primary Web3 Domain uniquely linked to the crypto address.

2. How do I access the API?

You can access the API simply by sending requests to the endpoint URLs (as stated below) using the HTTP method GET.

3. How do I resolve a domain to an address using the API?

Send a GET request:

https://nameapi.space.id/getAddress?domain=spaceid.bnb

Response: { "address": "0xb5932a6B7d50A966AEC6C74C97385412Fb497540"}

4. How do I reverse resolve an address to a domain?

Send a GET request:

https://nameapi.space.id/getName?chainid=56&address=0xb5932a6B7d50A966AEC6C74C97385412Fb497540

Response: {"name": "spaceid.bnb"}

5. What is the SPACE ID Web3 Name SDK, and what's the difference between SDK and API?

The SDK is a JavaScript/TypeScript library designed for client-side and backend integrations, allowing developers to directly query on-chain domain records inside their apps instead of handling API calls.

Conversely, the API is a RESTful service that enables developers to access SPACE ID’s domain name resolution via HTTP requests, making it ideal for server-side applications and large-scale integrations.

6. How do I install the SDK and resolve domain names?

Developers can install the Web3 Name SDK via:

npm install @web3-name-sdk/core viem@^1.20

And check the complete SDK documents here:

https://docs.space.id/developer-guide/web3-name-api-and-sdk/web3-name-sdk