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.
Band Protocol publishes 7 APIs on the APIs.io network. Tagged areas include Blockchain, Oracle, Data Feeds, Price Feeds, and Cross-Chain.
Band Protocol’s developer surface includes documentation, getting-started guide, engineering blog, and 11 more developer resources.
Open Source Surface applies to this provider. This product is open source and we
read its repository directly, so Open Source Surface carries
10 points of the composite. It is scored from what the repository actually
publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the
provider rather than inferred from our own catalog pointers.
This facet adds; nothing was taken away to make room for it. An open-source project is not excused from
the commercial facets, because exemption would strip it of the points it does earn.
If we have the wrong repository, or this product is not open source, say so on your
provider repo and we
will drop the facet rather than have you publish against it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
The six quality facets above are damped to 90 points between them,
because the conditional facet above carries the other
10. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 90% of its nominal
weight, not 100%. The full arithmetic is at apis.io/rating/.
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
deliveryModel:
model: self-hosted
license: GPL-3.0
open_source: true
commercial: false
callable_host: false
label: Self-hosted open source · you run it yourself
confidence: high
source:
- license
generated: '2026-08-28'
method: derived
accessModel:
pricing: unknown
onboarding: open
trial: false
try_now: false
public: true
label: Open access
confidence: medium
source:
- plans
generated: '2026-07-22'
method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/band-protocol.png
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: '0.23'
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: IssueTracker
url: https://github.com/bandprotocol/chain/issues
- type: Releases
url: https://github.com/bandprotocol/chain/releases
- type: SecurityPolicy
url: https://github.com/bandprotocol/chain/blob/master/SECURITY.md
- type: License
name: GPL-3.0
url: https://github.com/bandprotocol/chain/blob/master/LICENSE
- type: DomainSecurity
url: security/band-protocol-domain-security.yml
- 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: kin@apievangelist.com
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