Messari

Crypto market intelligence powered by Messari's REST API. Provides real-time access to Messari AI (chat completions over 30TB+ crypto data), Signal (sentiment, mindshare, trending narratives), Metrics (prices, volumes, fundamentals for 34,000+ assets across 210+ exchanges), News, Research, Stablecoins, Exchanges, Networks, Protocols, Token Unlocks, Fundraising, Intel, Topics, and X-Users data. Use when the user asks about crypto markets, token analysis, sentiment, protocol metrics, asset research, trending narratives, stablecoin flows, token unlock schedules, fundraising rounds, governance events, or any blockchain/crypto data question. Requires a Messari API key and Messari AI credits.

Security Scan

The skill appears to implement a legitimate Messari API integration, but registry metadata and the runtime instructions disagree about required credentials and provenance is unknown — verify the API-key handling and source before installing.

Purpose & Capability

The SKILL.md clearly documents a Messari integration and requires a Messari API key (MESSARI_API_KEY) and Messari AI credits, which match the described purpose. However, the registry metadata at the top of the provided package lists no required environment variables or primary credential — that is inconsistent. Requiring an API key is reasonable for this purpose, but the mismatch between the declared registry requirements and the SKILL.md is a red flag for sloppy packaging or incomplete metadata.

Instruction Scope

The runtime instructions are focused on interacting with Messari's REST API (https://api.messari.io) and provide curl examples that include an API key header. They do not instruct reading local files, other environment variables, or sending data to third-party endpoints outside Messari. Minor note: SKILL.md mentions 'Messari AI credits' as required but does not define how those credits are provided; this is a usage/cost requirement rather than a secret the skill pulls from the environment.

Install Mechanism

This is an instruction-only skill with no install spec and no code files, so nothing will be downloaded or written to disk by an installer. That minimizes install-time risk.

Credentials

The skill legitimately needs a Messari API key to call the API, and SKILL.md declares MESSARI_API_KEY as required. But the package registry metadata (the top-level 'Requirements' block) claims no required env vars and lists no primary credential — an inconsistency that makes it unclear how the platform will prompt for or store the API key. No other unrelated credentials are requested, which is appropriate, but the mismatch should be resolved before trusting the skill with your API key.

Persistence & Privilege

The skill does not request 'always' presence and does not declare actions that modify system or other-skill settings. It appears to operate only when invoked and to make outbound calls to Messari, which is appropriate for its purpose.

What to consider before installing

Before installing: - Confirm provenance: the skill's source/homepage is missing; prefer skills published by a known owner or linked to an official Messari listing. - Verify how your Messari API key will be supplied and stored by the platform (the SKILL.md requires MESSARI_API_KEY, but the registry metadata doesn't list it). Ensure the platform injects the key only into requests to api.messari.io and does not expose it elsewhere. - Understand cost: Messari AI completions require paid AI credits — confirm who bears the cost when the skill uses AI endpoints. - If you proceed, provide only the Messari API key (no other unrelated secrets), monitor the skill's network usage, and revoke the key if you see unexpected behavior. If you need higher assurance, request the publisher to correct the registry metadata to explicitly list MESSARI_API_KEY (and any other required vars) and provide an official homepage or owner verification.

Messari Crypto Intel

Real-time crypto market intelligence via Messari's REST API — AI-powered analysis, on-chain metrics, sentiment, news, and institutional-grade research without building data pipelines.

Prerequisites

• Messari API Key — get one at messari.io/api
• Messari AI Credits — required for AI completion endpoints

REST API Overview

Base URL: https://api.messari.io

Authentication: Include your API key in every request:

x-messari-api-key: <YOUR_API_KEY>

All endpoints accept and return JSON. Use Content-Type: application/json for POST requests.

Service Routing Table

Service	Base Path	Use When
AI	/ai/	General crypto questions, synthesis across data sources
Signal	/signal/v1/	Sentiment, mindshare, trending narratives
Metrics	/metrics/v2/	Price, volume, market cap, fundamentals
News	/news/v1/	Real-time crypto news, breaking events
Research	/research/v1/	Institutional reports, protocol deep dives
Stablecoins	/stablecoins/v2/	Stablecoin supply, per-chain breakdowns
Exchanges	/exchanges/v2/	Exchange volume, metrics, timeseries
Networks	/networks/v2/	L1/L2 network metrics, timeseries
Protocols	/protocols/v2/	DeFi protocol metrics (DEX, lending, staking)
Token Unlocks	/token-unlocks/v1/	Vesting schedules, unlock events
Fundraising	/fundraising/v1/	Funding rounds, investors, M&A
Intel	/intel/v1/	Governance events, protocol updates
Topics	/topics/v1/	Trending topic classes, daily timeseries
X-Users	/signal/v1/x-users/	Crypto X/Twitter user metrics

For detailed endpoint documentation, see references/api_services.md.

Example Requests

AI Chat Completion

curl -X POST "https://api.messari.io/ai/v1/chat/completions" \
  -H "x-messari-api-key: $MESSARI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "messages": [
      {"role": "user", "content": "What is the bull case for ETH right now?"}
    ]
  }'

Asset Metrics Lookup

curl "https://api.messari.io/metrics/v2/assets?assetSlugs=bitcoin,ethereum" \
  -H "x-messari-api-key: $MESSARI_API_KEY"

Signal Mindshare Gainers

curl "https://api.messari.io/signal/v1/assets/gainers-losers?type=mindshare&limit=10" \
  -H "x-messari-api-key: $MESSARI_API_KEY"

News Feed

curl "https://api.messari.io/news/v1/news/feed?limit=20" \
  -H "x-messari-api-key: $MESSARI_API_KEY"

Routing Guidance

General crypto questions

Route through AI first — broadest context, synthesizes across market data, research, news, social.

Quantitative questions

Use Metrics for price/volume/fundamentals. Exchanges for exchange-level data. Networks for L1/L2 metrics. Protocols for DeFi-specific data.

Sentiment and narratives

Signal for mindshare and sentiment. Topics for trending narrative classes. X-Users for influencer-level metrics.

Specific asset classes

Stablecoins for stablecoin supply and flows. Token Unlocks for vesting schedules and upcoming unlocks.

Research, news, and events

Research for deep dives and reports. News for real-time events. Intel for governance and protocol updates. Fundraising for funding rounds and M&A.

Multi-service queries

Combine services for richer answers. Example — "Is SOL overvalued?":

1. Metrics → current price, volume, fundamentals
2. Signal → sentiment and mindshare trend
3. Token Unlocks → upcoming supply pressure
4. AI → synthesize a view from all data