Band Protocol is a cross-chain data oracle platform that aggregates and connects real-world data and APIs to smart contracts. Built on BandChain, a high-performance Cosmos SDK blockchain, it enables developers to query price feeds, oracle scripts, data requests, and verifiable random numbers for use in decentralized applications across multiple blockchains.
The BandChain REST API provides HTTP access to BandChain mainnet data including oracle scripts, data requests, price feeds, validator information, account balances, and all Cosm...
The BandChain gRPC API provides high-performance protocol buffer access to BandChain nodes for querying oracle data, submitting data requests, managing accounts, and interacting...
The BandChain V3 Testnet REST API mirrors the mainnet REST API and provides a sandbox environment for developing and testing integrations with BandChain oracle services. Include...
BandChain.js is a comprehensive TypeScript library for seamless interaction with BandChain and Cosmos SDK blockchains. It supports querying oracle scripts, price feeds, validato...
PyBand is a Python SDK that offers a comprehensive set of features for interacting with BandChain via gRPC. It enables querying oracle scripts, data sources, request results, ac...
Band VRF is a provably fair, verifiable random function for on-chain randomness. It allows smart contracts to request cryptographically secure random numbers from BandChain vali...
The Band Standard Dataset is an open standard for creating and accessing custom price feeds that deliver highly efficient and secure financial data directly to smart contracts. ...
aid: band-protocol
name: Band Protocol
description: >-
Band Protocol is a cross-chain data oracle platform that aggregates and connects real-world data
and APIs to smart contracts. Built on BandChain, a high-performance Cosmos SDK blockchain, it
enables developers to query price feeds, oracle scripts, data requests, and verifiable random
numbers for use in decentralized applications across multiple blockchains.
url: https://bandprotocol.com
specificationVersion: '0.19'
created: '2026-06-13'
modified: '2026-06-13'
x-category: Blockchain
x-subcategory: Oracle
tags:
- Blockchain
- Oracle
- Data Feeds
- Price Feeds
- Cross-Chain
- DeFi
- Cosmos
apis:
- aid: band-protocol:bandchain-rest-api
name: BandChain REST API
description: >-
The BandChain REST API provides HTTP access to BandChain mainnet data including oracle scripts,
data requests, price feeds, validator information, account balances, and all Cosmos SDK module
queries. Built on gRPC-web via HTTP/1.5 or HTTP/2, the API exposes Band Protocol-specific
modules (oracle, feeds, TSS, tunnel) alongside standard Cosmos modules (bank, staking,
governance, distribution).
humanURL: https://docs.bandchain.org/develop/api-endpoints
baseURL: https://laozi1.bandchain.org/api
tags:
- Oracle
- Price Feeds
- Data Requests
- Validators
- Cosmos SDK
- REST
properties:
- type: Documentation
url: https://docs.bandchain.org/develop/api-endpoints
- type: APIReference
url: https://docs.bandchain.org/develop/api-endpoints
- aid: band-protocol:bandchain-grpc-api
name: BandChain gRPC API
description: >-
The BandChain gRPC API provides high-performance protocol buffer access to BandChain nodes
for querying oracle data, submitting data requests, managing accounts, and interacting with
all Cosmos SDK and Band Protocol modules. Supports gRPC-Web for browser-based integrations.
humanURL: https://docs.bandchain.org/develop/api-endpoints
baseURL: https://laozi1.bandchain.org
tags:
- Oracle
- gRPC
- Protocol Buffers
- Cosmos SDK
properties:
- type: Documentation
url: https://docs.bandchain.org/develop/api-endpoints
- aid: band-protocol:bandchain-testnet-rest-api
name: BandChain Testnet REST API
description: >-
The BandChain V3 Testnet REST API mirrors the mainnet REST API and provides a sandbox
environment for developing and testing integrations with BandChain oracle services. Includes
a faucet endpoint for acquiring test BAND tokens.
humanURL: https://docs.bandchain.org/develop/api-endpoints
baseURL: https://band-v3-testnet.bandchain.org/api
tags:
- Testnet
- Oracle
- Price Feeds
- REST
- Sandbox
properties:
- type: Documentation
url: https://docs.bandchain.org/develop/api-endpoints
- type: Sandbox
url: https://band-v3-testnet.bandchain.org/faucet
- aid: band-protocol:bandchain-js-sdk
name: BandChain.js SDK
description: >-
BandChain.js is a comprehensive TypeScript library for seamless interaction with BandChain
and Cosmos SDK blockchains. It supports querying oracle scripts, price feeds, validators,
and governance proposals as well as building and broadcasting transactions. Provides full
TypeScript 5.x type safety, wallet integrations (Keplr, Cosmostation, WalletConnect), and
automatic gas estimation.
humanURL: https://docs.bandchain.org/develop/developer-tools/bandchain.js/introduction
baseURL: https://www.npmjs.com/package/@bandprotocol/bandchain.js
tags:
- JavaScript
- TypeScript
- SDK
- Oracle
- Cosmos SDK
properties:
- type: Documentation
url: https://docs.bandchain.org/develop/developer-tools/bandchain.js/introduction
- type: GettingStartedDocumentation
url: https://docs.bandchain.org/develop/developer-tools/bandchain.js/getting-started
- type: SDKLibrary
url: https://www.npmjs.com/package/@bandprotocol/bandchain.js
- aid: band-protocol:pyband-sdk
name: PyBand Python SDK
description: >-
PyBand is a Python SDK that offers a comprehensive set of features for interacting with
BandChain via gRPC. It enables querying oracle scripts, data sources, request results,
account information, and validator data, as well as sending transactions in block, async,
or sync modes.
humanURL: https://github.com/bandprotocol/pyband
baseURL: https://pypi.org/project/pyband
tags:
- Python
- SDK
- Oracle
- gRPC
properties:
- type: Documentation
url: https://github.com/bandprotocol/pyband
- type: SDKLibrary
url: https://pypi.org/project/pyband
- aid: band-protocol:band-vrf
name: Band VRF
description: >-
Band VRF is a provably fair, verifiable random function for on-chain randomness. It allows
smart contracts to request cryptographically secure random numbers from BandChain validators,
suitable for NFT minting, gaming, lotteries, and any DeFi use case requiring unbiased
randomness.
humanURL: https://docs.bandchain.org/
baseURL: https://docs.bandchain.org/
tags:
- VRF
- Randomness
- Smart Contracts
- Oracle
properties:
- type: Documentation
url: https://docs.bandchain.org/
- aid: band-protocol:band-standard-dataset
name: Band Standard Dataset
description: >-
The Band Standard Dataset is an open standard for creating and accessing custom price feeds
that deliver highly efficient and secure financial data directly to smart contracts. Developers
can query reference prices for cryptocurrencies, FX rates, and commodities via REST or
bandchain.js.
humanURL: https://docs.bandchain.org/
baseURL: https://laozi1.bandchain.org/api
tags:
- Price Feeds
- Financial Data
- Cryptocurrency
- Oracle
- DeFi
properties:
- type: Documentation
url: https://docs.bandchain.org/
common:
- type: Website
url: https://bandprotocol.com
- type: Documentation
url: https://docs.bandchain.org
- type: GettingStarted
url: https://docs.bandchain.org/develop/api-endpoints
- type: GitHubOrganization
url: https://github.com/bandprotocol
- type: GitHubRepository
url: https://github.com/bandprotocol/chain
- type: BlockExplorer
url: https://www.cosmoscan.io/
- type: Discord
url: https://discord.gg/3t4bsY7
- type: Telegram
url: https://t.me/bandprotocol
- type: Blog
url: https://medium.com/bandprotocol
maintainers:
- FN: Kin Lane
email: [email protected]