Kaiko

Kaiko is an institutional-grade crypto market data provider. Its product line spans Kaiko REST (historical and reference data), Kaiko Stream (real-time WebSocket and gRPC), Cloud Delivery (S3 and Snowflake direct shares), Kaiko On-chain, and Kaiko Indices (regulated benchmark indices). Authentication uses API keys; access is sales-led.

Kaiko publishes 4 APIs on the APIs.io network, including Canton Oracle API, Index Reference Data API, Indices API, and 1 more. Tagged areas include Web3, Crypto, Market Data, Institutional, and FX.

Kaiko’s developer surface includes authentication, developer portal, documentation, changelog, pricing, engineering blog, support, and 29 more developer resources.

🌐 Visit website 📡 Source on GitHub

55.8/100 strong ▬ flat Agent 27/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessEnterprise

1 APIs

Web3 Crypto Market Data Institutional FX Indices Onchain Streaming

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 55.8/100 · strong

Contract Quality 11.6 / 21

Developer Ergonomics 11.4 / 17

Access Clarity 10.3 / 17

Operational Transparency 3.5 / 11

Contract Governance 1.9 / 10

Discoverability 5.7 / 9

Regulatory Posture 9.0 / 15

Agent readiness — 27/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 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 Securities & Market Data 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.

Create-or-Update Ergonomics does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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/kaiko: 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 8

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

Kaiko REST API

REST endpoints for trades, order books, OHLCV, market reference, trade flows, FX rates, and derivatives across 100+ exchanges. Historical depth back to 2014. Authentication via ...

Kaiko Stream

Real-time crypto market data delivered over gRPC server-streaming. Feeds include tick-level trades, top-of-book (best bid/ask), level-2 order book updates, level-1 aggregations ...

Kaiko On-chain API

On-chain metrics including DEX trades, liquidity, lending markets, and MEV signals across major chains.

Kaiko Indices

Regulated benchmark crypto indices designed for fund administrators and ETF/ETP issuers.

Kaiko Canton Oracle API

Canton oracle pricing endpoints.

Kaiko Index Reference Data API

Reference-rate data for Kaiko indices.

Kaiko Indices API

Index composition and replication data.

Kaiko Supply API

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Kaiko Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Kaiko Finops

FINOPS

Security Posture 3

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

Kaiko Authentication

apiKey · 1 scheme

SECURITY

Kaiko Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Kaiko Trust Center

SOC 2 Type II

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Kaiko Agentic Access

5 operations

5 operations · 0 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal

Portal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

LlmsText

LlmsText

X-MCPServerCandidate

X-MCPServerCandidate

AgentSkill

AgentSkill

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

Build 5

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

Packages

SDKs

Postman

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity

Authentication

Compliance

TrustCenter

Operate 4

Status, limits, changes, and where to get help

RateLimits

StatusPage

ChangeLog

Support

Commercial 5

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Protobuf

Protobuf

Review

Review

Source (apis.yml)

aid: kaiko
url: https://raw.githubusercontent.com/api-evangelist/kaiko/refs/heads/main/apis.yml
name: Kaiko
kind: company
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: enterprise
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Enterprise
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/kaiko.png
tags:
- Web3
- Crypto
- Market Data
- Institutional
- FX
- Indices
- Onchain
- Streaming
tags_raw:
- Web3
- Crypto
- Market Data
- Institutional
- FX
- Indices
- On-Chain
- Streaming
created: '2026-05-08'
modified: '2026-07-22'
specificationVersion: '0.23'
description: Kaiko is an institutional-grade crypto market data provider. Its product line spans Kaiko REST (historical and
  reference data), Kaiko Stream (real-time WebSocket and gRPC), Cloud Delivery (S3 and Snowflake direct shares), Kaiko On-chain,
  and Kaiko Indices (regulated benchmark indices). Authentication uses API keys; access is sales-led.
apis:
- aid: kaiko:rest-api
  name: Kaiko REST API
  tags:
  - Crypto
  - Market Data
  - Reference Data
  - Historical
  - Institutional
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://us.market-api.kaiko.io/v2
  humanURL: https://docs.kaiko.com/
  description: REST endpoints for trades, order books, OHLCV, market reference, trade flows, FX rates, and derivatives across
    100+ exchanges. Historical depth back to 2014. Authentication via X-Api-Key header.
  properties:
  - type: Documentation
    url: https://docs.kaiko.com/
  x-features:
  - Trades, OHLCV, order books
  - 100+ exchanges
  - History back to 2014
  - Cross-region endpoints (US, EU)
  x-use-cases:
  - Institutional trading research
  - Compliance and surveillance
  - NAV calculation for crypto funds
- aid: kaiko:stream
  name: Kaiko Stream
  tags:
  - Streaming
  - Real-Time
  - gRPC
  tags_raw:
  - Streaming
  - Real-time
  - gRPC
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.kaiko.com/stream/general/introduction
  description: Real-time crypto market data delivered over gRPC server-streaming. Feeds include tick-level trades, top-of-book
    (best bid/ask), level-2 order book updates, level-1 aggregations (OHLCV, VWAP), derivatives reference data, and analytics
    (Best Execution, Fair Market Value, Derivatives Risk Indicators). Transport is gRPC only; Kaiko does not publish a WebSocket
    interface (see review.yml).
  properties:
  - type: Documentation
    url: https://docs.kaiko.com/stream/general/introduction
  - type: SDKs
    url: https://github.com/kaikodata/kaiko-sdk-examples
  - type: Review
    url: review.yml
  x-features:
  - gRPC server-streaming Subscribe RPCs
  - Trade, top-of-book, level-2, OHLCV, VWAP feeds
  - Derivatives reference data and risk indicators
  - SDKs in Python, Go, Java, Node, C++, C#, Rust, Scala
  x-use-cases:
  - Live trading systems
  - Latency-sensitive analytics
  - Fair market value and best execution
- aid: kaiko:on-chain-api
  name: Kaiko On-chain API
  tags:
  - Onchain
  - DEX
  - Liquidity
  - Multi-Chain
  tags_raw:
  - On-Chain
  - DEX
  - Liquidity
  - Multi-chain
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://us.market-api.kaiko.io/v2/data/onchain
  humanURL: https://docs.kaiko.com/onchain/overview
  description: On-chain metrics including DEX trades, liquidity, lending markets, and MEV signals across major chains.
  properties:
  - type: Documentation
    url: https://docs.kaiko.com/onchain/overview
  x-features:
  - DEX trade and liquidity data
  - Lending market metrics
  - MEV signals
  x-use-cases:
  - Cross-CEX/DEX research
  - DeFi compliance
- aid: kaiko:indices
  name: Kaiko Indices
  tags:
  - Indices
  - Benchmarks
  - Regulated
  tags_raw:
  - Indices
  - Benchmark
  - Regulated
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://us.market-api.kaiko.io/v2/data/index.v1
  humanURL: https://www.kaiko.com/products/indices
  description: Regulated benchmark crypto indices designed for fund administrators and ETF/ETP issuers.
  properties:
  - type: Documentation
    url: https://www.kaiko.com/products/indices
  x-features:
  - Regulated benchmarks
  - Single-asset and basket indices
  - Fixings for NAV
  x-use-cases:
  - Crypto ETF/ETP NAV
  - Fund administrator NAV
- aid: kaiko:kaiko-canton-oracle-api
  name: Kaiko Canton Oracle API
  description: Canton oracle pricing endpoints.
  humanURL: https://docs.kaiko.com/
  baseURL: https://us.market-api.kaiko.io/v2
  tags:
  - Canton Oracle
  properties:
  - type: OpenAPI
    url: openapi/kaiko-canton-oracle-api-openapi.yml
  - type: Overlay
    url: overlays/kaiko-canton-oracle-api-overlay.yaml
- aid: kaiko:kaiko-index-reference-data-api
  name: Kaiko Index Reference Data API
  description: Reference-rate data for Kaiko indices.
  humanURL: https://docs.kaiko.com/
  baseURL: https://us.market-api.kaiko.io/v2
  tags:
  - Index Reference Data
  properties:
  - type: OpenAPI
    url: openapi/kaiko-index-reference-data-api-openapi.yml
  - type: Overlay
    url: overlays/kaiko-index-reference-data-api-overlay.yaml
- aid: kaiko:kaiko-indices-api
  name: Kaiko Indices API
  description: Index composition and replication data.
  humanURL: https://docs.kaiko.com/
  baseURL: https://us.market-api.kaiko.io/v2
  tags:
  - Indices
  properties:
  - type: OpenAPI
    url: openapi/kaiko-indices-api-openapi.yml
  - type: Overlay
    url: overlays/kaiko-indices-api-overlay.yaml
- aid: kaiko:kaiko-supply-api
  name: Kaiko Supply API
  description: Asset supply and market-capitalization rankings.
  humanURL: https://docs.kaiko.com/
  baseURL: https://us.market-api.kaiko.io/v2
  tags:
  - Supply
  properties:
  - type: OpenAPI
    url: openapi/kaiko-supply-api-openapi.yml
  - type: Overlay
    url: overlays/kaiko-supply-api-overlay.yaml
common:
- type: Website
  url: https://www.kaiko.com/
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/kaiko/overview
- type: AgenticAccess
  url: agentic-access/kaiko-agentic-access.yml
- type: DomainSecurity
  url: security/kaiko-domain-security.yml
- type: Authentication
  url: authentication/kaiko-authentication.yml
- type: GitHubOrganization
  url: https://github.com/kaikodata
- type: LinkedIn
  url: https://www.linkedin.com/company/kaikodata
- type: Portal
  url: https://www.kaiko.com/
- type: Documentation
  url: https://docs.kaiko.com/
- type: Plans
  url: plans/kaiko-plans-pricing.yml
- type: RateLimits
  url: rate-limits/kaiko-rate-limits.yml
- type: FinOps
  url: finops/kaiko-finops.yml
- type: LLMsTxt
  url: llms/kaiko-llms.txt
- type: LlmsText
  url: https://docs.kaiko.com/llms.txt
- type: Packages
  url: packages/kaiko-packages.yml
- type: SDKs
  url: packages/kaiko-packages.yml
- type: Protobuf
  url: grpc/kaiko-equities.proto
- type: X-MCPServerCandidate
  url: mcp/kaiko-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: Conformance
  url: conformance/kaiko-conformance.yml
- type: Compliance
  url: https://www.kaiko.com/compliance
- type: TrustCenter
  url: security/kaiko-trust-center.yml
- type: ErrorCatalog
  url: errors/kaiko-problem-types.yml
- type: Lifecycle
  url: lifecycle/kaiko-lifecycle.yml
- type: StatusPage
  url: https://status.kaiko.com/
- type: Conventions
  url: conventions/kaiko-conventions.yml
- type: ChangeLog
  url: changelog/kaiko-changelog.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Postman
  url: collections/kaiko.postman_collection.json
- type: Pricing
  url: https://www.kaiko.com/about-kaiko/pricing-and-contracts
- type: TermsOfService
  url: https://www.kaiko.com/terms
- type: PrivacyPolicy
  url: https://marketing.kaiko.com/hubfs/Website%20documents/Kaiko%20-%20Privacy%20Policy%20(v.1.0).pdf
- type: Blog
  url: https://www.kaiko.com/resources/categories/data-blog
- type: Support
  url: https://www.kaiko.com/contact-kaiko
- type: GettingStarted
  url: https://docs.kaiko.com/rest-api/general/getting-started
- type: APIReference
  url: https://docs.kaiko.com/rest-api/general/introduction
- type: Review
  url: review.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/kaiko"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/kaiko/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/kaiko/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.