UniSat Open API

Welcome to the UniSat Open API Documentation.

UniSat Open APIs provide standardized RESTful interfaces for accessing blockchain data, ticker information, marketplace operations, and more. These APIs empower developers to build wallets, explorers, marketplaces, and other blockchain-integrated applications. We provide an online interactive Swagger UI for quick exploration and testing: https://open-api.unisat.io

Available API Documentation

Full API documentation: https://github.com/unisat-wallet/unisat-dev-docs

Recommended Reading: BTC Assets and Other Protocol Assets Overview

Blockchain Indexing API

API Category	Description	Documentation Link
Blockchain Level	Core blockchain and transaction indexing	blockchain-indexer.md
Inscription Level	Indexing of inscriptions	inscription-indexer.md
brc20	Indexing and data for BRC20 tokens	brc20-indexer.md
Runes	Indexing for Runes tokens	runes-indexer.md
Alkanes	Developer-friendly API built on Alkanes indexer	alkanes-indexer.md
Collection	NFT collections indexing	collection-indexer.md
Fractal	Fractal network related APIs	fractal.md

UniSat Services API

API Category	Description	Documentation Link
UniSat Inscribe	Inscription creation and management	inscribe.md
brc20 Marketplace	BRC20 marketplace	brc20-marketplace.md
Runes Marketplace	Runes marketplace	runes-marketplace.md
Alkanes Marketplace	Alkanes marketplace	alkanes-marketplace.md
Collection Marketplace	Ordinals Collection marketplace	collection-marketplace.md
Domain Marketplace	Ordinals Domain marketplace	domain-marketplace.md
brc20 Swap	Swap functionality for BRC20 tokens	brc20-swap.md
CAT20 DEX	Decentralized exchange for CAT20 tokens	cat20-dex.md

---

Apply for a UniSat API Key

Before you start using UniSat API, you need to apply for a UniSat API Key.

We offer several plans: Free, Specialist, Enterprise, Custom, and Pay-as-you-go. Visit https://developer.unisat.io/ and follow the on-page instructions to apply.

How to Acquire a UniSat API Key: https://docs.unisat.io/dev-center/developer-center/how-to-acquire-a-unisat-api-key

Note: UniSat API can still be accessed without an API key. However, to ensure fair allocation of resources, we recommend including an API key in all requests. Requests made without a key, or with a free key, may face strict rate limits or even no response under high load.

---

Usage

1. Use the Swagger UI https://open-api.unisat.io and read the documents https://github.com/unisat-wallet/unisat-dev-docs to test API calls.

2. Register at https://developer.unisat.io/ and authenticate as required by each API.

3. Handle error codes and messages according to the error codes documentation

---

For any questions, support, or discussions, please reach out to us on Discord: http://discord.gg/unisat Thank you for using UniSat Open API!