Messari

Messari provides crypto research, analytics, fundamentals, intelligence, and asset profiles through a REST API at data.messari.io. Endpoints cover assets metrics, market data, news, Token Unlocks, screener, governance, treasuries, and AI-powered Messari Copilot. Authentication is via the x-messari-api-key header.

Messari publishes 11 APIs on the APIs.io network, including AI API, Assets API, Datasets API, and 8 more. Tagged areas include Web3, Crypto, Research, Analytics, and Asset Data.

Messari’s developer surface includes authentication, developer portal, documentation, pricing, GitHub presence, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub

29.2/100 thin ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs

Web3 Crypto Research Analytics Asset Data Fundamentals News Token Unlocks

Kin Score

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

Composite quality — 29.2/100 · thin

Contract Quality 10.7 / 23

Developer Ergonomics 4.7 / 18

Access Clarity 3.8 / 18

Operational Transparency 1.5 / 12

Contract Governance 0.0 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 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

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

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/messari: 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 12

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

Messari REST API

Comprehensive REST API exposing /v1, /v2 endpoints for asset metrics (price, market cap, ROI, mining stats, supply, developer activity, ROI), markets, news, Token Unlocks, scree...

Messari AI API

The AI API from Messari — 4 operation(s) for ai.

Messari Assets API

The Assets API from Messari — 7 operation(s) for assets.

Messari Datasets API

The Datasets API from Messari — 2 operation(s) for datasets.

Messari Exchanges API

The Exchanges API from Messari — 2 operation(s) for exchanges.

Messari Markets API

The Markets API from Messari — 4 operation(s) for markets.

Messari Monitoring API

The Monitoring API from Messari — 3 operation(s) for monitoring.

Messari Networks API

The Networks API from Messari — 3 operation(s) for networks.

Messari News API

The News API from Messari — 5 operation(s) for news.

Messari Protocols API

The Protocols API from Messari — 5 operation(s) for protocols.

Messari Research API

The Research API from Messari — 3 operation(s) for research.

Messari Token Unlocks API

The Token Unlocks API from Messari — 2 operation(s) for token unlocks.

Scroll for all 12

Open Collections 13

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Messari AI API

OPEN COLLECTION

Messari AI Assets API

OPEN COLLECTION

Messari AI Datasets API

OPEN COLLECTION

Messari AI Exchanges API

OPEN COLLECTION

Messari AI Markets API

OPEN COLLECTION

Messari AI Monitoring API

OPEN COLLECTION

Messari AI Networks API

OPEN COLLECTION

Messari AI News API

OPEN COLLECTION

Messari AI Protocols API

OPEN COLLECTION

Messari AI Research API

OPEN COLLECTION

Messari AI Token Unlocks API

OPEN COLLECTION

Messari API

OPEN COLLECTION

Scroll for all 13

Pricing Plans 1

Published pricing tiers and plan structures.

Messari Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Messari Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Messari Finops

FINOPS

Security Posture 2

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

Messari Authentication

apiKey · 1 scheme

SECURITY

Messari Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Messari Agentic Access

42 operations · 6 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Portal

Portal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 1

The organization behind the API

LinkedIn

Source (apis.yml)

aid: messari
url: https://raw.githubusercontent.com/api-evangelist/messari/refs/heads/main/apis.yml
name: Messari
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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/messari.png
tags:
- Web3
- Crypto
- Research
- Analytics
- Asset Data
- Fundamentals
- News
- Token Unlocks
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.23'
description: Messari provides crypto research, analytics, fundamentals, intelligence, and asset profiles through a REST API
  at data.messari.io. Endpoints cover assets metrics, market data, news, Token Unlocks, screener, governance, treasuries,
  and AI-powered Messari Copilot. Authentication is via the x-messari-api-key header.
apis:
- aid: messari:rest-api
  name: Messari REST API
  tags:
  - Crypto
  - Asset Data
  - Market Data
  - News
  - Fundamentals
  - Token Unlocks
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://data.messari.io/api
  humanURL: https://messari.io/api/docs
  description: Comprehensive REST API exposing /v1, /v2 endpoints for asset metrics (price, market cap, ROI, mining stats,
    supply, developer activity, ROI), markets, news, Token Unlocks, screener, and curated intel. Higher-tier plans unlock
    proprietary research datasets.
  properties:
  - type: Documentation
    url: https://messari.io/api/docs
  - type: Pricing
    url: https://messari.io/pricing
  x-features:
  - Asset metrics across 1,500+ assets
  - News and intel feed
  - Token Unlocks dataset
  - Treasuries and governance
  - Messari Copilot AI agent (higher tiers)
  x-use-cases:
  - Power crypto research dashboards
  - Token-unlock alerting and risk
  - Curated news ingestion
- aid: messari:messari-ai-api
  name: Messari AI API
  description: The AI API from Messari — 4 operation(s) for ai.
  humanURL: https://messari.io/api/docs
  baseURL: https://data.messari.io/api
  tags:
  - Artificial Intelligence
  tags_raw:
  - AI
  properties:
  - type: OpenAPI
    url: openapi/messari-ai-api-openapi.yml
- aid: messari:messari-assets-api
  name: Messari Assets API
  description: The Assets API from Messari — 7 operation(s) for assets.
  humanURL: https://messari.io/api/docs
  baseURL: https://data.messari.io/api
  tags:
  - Assets
  properties:
  - type: OpenAPI
    url: openapi/messari-assets-api-openapi.yml
- aid: messari:messari-datasets-api
  name: Messari Datasets API
  description: The Datasets API from Messari — 2 operation(s) for datasets.
  humanURL: https://messari.io/api/docs
  baseURL: https://data.messari.io/api
  tags:
  - Datasets
  properties:
  - type: OpenAPI
    url: openapi/messari-datasets-api-openapi.yml
- aid: messari:messari-exchanges-api
  name: Messari Exchanges API
  description: The Exchanges API from Messari — 2 operation(s) for exchanges.
  humanURL: https://messari.io/api/docs
  baseURL: https://data.messari.io/api
  tags:
  - Exchanges
  properties:
  - type: OpenAPI
    url: openapi/messari-exchanges-api-openapi.yml
- aid: messari:messari-markets-api
  name: Messari Markets API
  description: The Markets API from Messari — 4 operation(s) for markets.
  humanURL: https://messari.io/api/docs
  baseURL: https://data.messari.io/api
  tags:
  - Markets
  properties:
  - type: OpenAPI
    url: openapi/messari-markets-api-openapi.yml
- aid: messari:messari-monitoring-api
  name: Messari Monitoring API
  description: The Monitoring API from Messari — 3 operation(s) for monitoring.
  humanURL: https://messari.io/api/docs
  baseURL: https://data.messari.io/api
  tags:
  - Monitoring
  properties:
  - type: OpenAPI
    url: openapi/messari-monitoring-api-openapi.yml
- aid: messari:messari-networks-api
  name: Messari Networks API
  description: The Networks API from Messari — 3 operation(s) for networks.
  humanURL: https://messari.io/api/docs
  baseURL: https://data.messari.io/api
  tags:
  - Networks
  properties:
  - type: OpenAPI
    url: openapi/messari-networks-api-openapi.yml
- aid: messari:messari-news-api
  name: Messari News API
  description: The News API from Messari — 5 operation(s) for news.
  humanURL: https://messari.io/api/docs
  baseURL: https://data.messari.io/api
  tags:
  - News
  properties:
  - type: OpenAPI
    url: openapi/messari-news-api-openapi.yml
- aid: messari:messari-protocols-api
  name: Messari Protocols API
  description: The Protocols API from Messari — 5 operation(s) for protocols.
  humanURL: https://messari.io/api/docs
  baseURL: https://data.messari.io/api
  tags:
  - Protocols
  properties:
  - type: OpenAPI
    url: openapi/messari-protocols-api-openapi.yml
- aid: messari:messari-research-api
  name: Messari Research API
  description: The Research API from Messari — 3 operation(s) for research.
  humanURL: https://messari.io/api/docs
  baseURL: https://data.messari.io/api
  tags:
  - Research
  properties:
  - type: OpenAPI
    url: openapi/messari-research-api-openapi.yml
- aid: messari:messari-token-unlocks-api
  name: Messari Token Unlocks API
  description: The Token Unlocks API from Messari — 2 operation(s) for token unlocks.
  humanURL: https://messari.io/api/docs
  baseURL: https://data.messari.io/api
  tags:
  - Token Unlocks
  properties:
  - type: OpenAPI
    url: openapi/messari-token-unlocks-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/messari-agentic-access.yml
- type: DomainSecurity
  url: security/messari-domain-security.yml
- type: Authentication
  url: authentication/messari-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/messari
- type: Portal
  url: https://messari.io/
- type: Documentation
  url: https://messari.io/api/docs
- type: Pricing
  url: https://messari.io/pricing
- type: GitHub
  url: https://github.com/messari
- type: Plans
  url: plans/messari-plans-pricing.yml
- type: RateLimits
  url: rate-limits/messari-rate-limits.yml
- type: FinOps
  url: finops/messari-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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