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 is listed with 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 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

24.5/100 emerging ▬ flat Agent 1/100 human only Front door AI 4/6 moderate Heartbeat 48/100 going silent self hosted · GPL-3.0 Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumOpen⚡ Free to try

7 APIs

Blockchain Oracle Data Feed Price Feeds Cross-Chain DeFi Cosmos

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 24.5/100 · emerging

Contract Quality 0.0 / 19

Developer Ergonomics 5.9 / 15

Access Clarity 1.2 / 15

Operational Transparency 3.6 / 10

Contract Governance 0.0 / 9

Discoverability 5.9 / 8

Regulatory Posture 0.9 / 15

Open Source Surface 6.0 / 10

Agent readiness — 1/100 · 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

12 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 7.9 — up to +18.4 composite points
Developer Ergonomics scores 39.3 — up to +12.1 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/band-protocol/apis.yml: open an issue on github.com/api-evangelist/band-protocol to ask a question or point us at an artifact you publish. 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

Band Protocol API pricing

Not yet checked against Band Protocol's own pricing page. Compiled by API Evangelist on 2026-06-13 from docs.bandchain.org/develop/api-endpoints; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Public Node Access free	Free
On-Chain Data Request usage-based	—
Validator Node enterprise	—

Plan details, limits and sources →

Rate limits

REST read queries (public mainnet node): requests per second
gRPC read queries (public mainnet node): requests per second
Block throughput (on-chain writes): transactions per block

Compiled by API Evangelist, not yet checked against Band Protocol's documentation. All 4 limits →

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 4

Status, limits, changes, and where to get help

RateLimits

IssueTracker

Releases

Discord

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

License

License

Company 3

The organization behind the API

BlogRSS

BlogRSS

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: freemium
  onboarding: open
  trial: false
  try_now: true
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Open access
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  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: '2026-10-06'
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: Plans
  url: plans/band-protocol-plans-pricing.yml
- type: RateLimits
  url: rate-limits/band-protocol-rate-limits.yml
- type: FinOps
  url: finops/band-protocol-finops.yml
- url: https://blog.bandprotocol.com/rss/
  type: BlogRSS
- 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

Band Protocol API — frequently asked questions

Does Band Protocol have an API?

Yes. APIs.io lists 7 APIs from Band Protocol, including BandChain REST API, BandChain gRPC API and BandChain Testnet REST API, and 4 more.

How much does the Band Protocol API cost?

APIs.io lists 3 pricing plans for Band Protocol, with each plan's price, limits and inclusions under Pricing on this page.

Is the Band Protocol API ready for AI agents?

Band Protocol has a Kin Score of 24.5 out of 100 (emerging) and an Agent Readiness score of 0.6 (human-only), scored by API Evangelist on 2026-11-06.

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