Band Protocol

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 Feed, Price Feeds, and Cross-Chain.

Band Protocol’s developer surface includes documentation, getting-started guide, engineering blog, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub

31.9/100 thin ▬ flat Agent 3/100 human only Front door AI 4/6 moderate self hosted · GPL-3.0 Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

AccessOpen

7 APIs

Blockchain Oracle Data Feed Price Feeds Cross-Chain DeFi Cosmos

Kin Score

Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0

Composite quality — 31.9/100 · thin

Contract Quality 0.0 / 19

Developer Ergonomics 5.9 / 15

Access Clarity 5.4 / 15

Operational Transparency 5.6 / 10

Contract Governance 0.0 / 9

Discoverability 5.9 / 8

Regulatory Posture 0.9 / 15

Open Source Surface 6.0 / 10

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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 75 points between them, because both conditional facets apply and carry 25 points together. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/band-protocol: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 7

Individual APIs this provider publishes, each with its own machine-readable definition.

BandChain REST API

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...

BandChain gRPC API

The BandChain gRPC API provides high-performance protocol buffer access to BandChain nodes for querying oracle data, submitting data requests, managing accounts, and interacting...

BandChain Testnet REST API

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 SDK

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 Python SDK

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

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...

Band Standard Dataset

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. ...

Scroll for all 7

Pricing Plans 1

Published pricing tiers and plan structures.

Band Protocol Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Band Protocol Rate Limits

4 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Band Protocol Finops

FINOPS

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Band Protocol Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

Access & Security 2

Authentication, authorization, and security posture

SecurityPolicy

SecurityPolicy

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

Releases

Releases

Discord

Discord

Commercial 1

Pricing, plans, and the legal terms of use

License

License

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

BlockExplorer

BlockExplorer

Telegram

Source (apis.yml)

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
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-20
x-docs-hosting: vercel
tags:
- Blockchain
- Oracle
- Data Feed
- Price Feeds
- Cross-Chain
- DeFi
- Cosmos
tags_raw:
- 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
  - Validator
  - Cosmos SDK
  - REST
  tags_raw:
  - 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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