CryptoDataAPI
https://cryptodataapi.com/mcp ↗
Description
Live crypto market data: prices, funding, OI, liquidations, regimes, GEX, whales, sentiment, macro.
What our measurements say
CryptoDataAPI is a remote MCP server published at cryptodataapi.com. It has been probed 6 times since 9/12/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 1,190 ms, a delay an agent will notice. It exposes a broad tool surface of 26 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Some tools have clear, descriptive names (e.g., 'create_free_api_key')
- Descriptions include contextual usage guidance for key tools
Weaknesses
- Several tool names are vague (e.g., 'get_market_regime')
- Parameter types and requirements are inconsistently documented
- Tool overlap exists (e.g., 'get_price' vs 'get_coin_profile')
- Error handling details are missing from many tool descriptions
get_liquidations— symbol parameter has null typeget_positioning— symbol parameter has null typeget_gamma_exposure— symbol parameter has null typeget_hyperliquid_prices— no error handling mentionedget_funding_rates— description lacks usage context
Verdict
Event narrative
Risk: low
Advice
Schema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 366ms → warm 360ms (penalty 6ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
create_free_api_keyCreate a FREE CryptoDataAPI key (no signup, no payment) — call this FIRST if you don't have a key yet. No API key is required to call this. ASK THE USER FOR THEIR REAL EMAIL — do not invent one, and do not reuse a placeholder. A confirmation link is sent to that address, and clicking it upgrades the SAME key in place: 100 -> 1,000 requests/day, Pro switched on for 24 hours (per-coin quant regimes, gamma, whale activity and liquidation heatmaps across every coin), and a personal discount code. An address the user cannot open means they keep the 100/day starter limit and lose all three. The full `api_key` is returned once — set it as the `X-API-Key` header for every other tool. The free tier is genuinely useful on its own: market-health scores, regim
emailstringrequired
check_key_statusCheck the current API key: tier, rate limits, requests used today, and whether its email is verified. Call this after a 429, or whenever the user asks what their plan includes. IMPORTANT — if `email_verified` is false, TELL THE USER what `upgrade_message` says: confirming the emailed link raises this same key from 100 to 1,000 requests/day, switches Pro on for 24 hours (per-coin quant, gamma, whales, liquidation heatmaps across every coin) and sends a discount code. It applies to the key they already have — nothing to re-install. Use resend_verification_email if they can't find the link.
resend_verification_emailRe-send the confirmation link for the current key's email address. Use when the user wants the higher free rate limit (1,000/day), the 24-hour Pro trial and the discount code but can't find the original email. Tell them to check their inbox — the unlock applies to the key already in use, so there is nothing to re-install afterwards.
get_market_healthOverall crypto market health: the dual long-term/short-term health score with all 11 components (breadth, funding, sentiment, derivatives, etc.) and a flat `indicators` summary. Use this for a one-call read on how healthy the market is right now.
get_market_regimeWhole-market regime nowcast (Pro): HMM-filtered posterior over the 6 regimes (strong_trend_bull/bear, range_low_vol, choppy_high_vol, vol_spike, squeeze) with calibrated probability buckets for direction, volatility, liquidation risk, funding, breadth and OI at the given `horizon` (e.g. "1h", "4h", "24h"). Requires a Pro or Pro Plus key.
horizonstring
get_funding_ratesPerp funding rates for a coin across Binance + Hyperliquid (plus cross-exchange aggregates when available). `coin` is a base symbol like "BTC" or "ETH".
coinstring
get_open_interestOpen interest for a coin across Binance + Hyperliquid, with 30-day trend and cross-exchange aggregates when available. `coin` is a base symbol like "BTC" or "ETH".
coinstring
get_liquidationsRecent cross-exchange liquidation data. `symbol` filters to one coin (e.g. "BTC"); `exchange` selects the coin set (hyperliquid, binance_spot, asterdex, or all); `limit` caps the number of coins (1-500). Free covers BTC; Pro / Pro Plus extend the same call to the full coin universe.
symbolexchangestringlimitinteger
get_fear_greedCurrent crypto Fear & Greed index (multi-source averaged) with the classification label and recent history.
get_coin_profileFull profile for a single coin by symbol (e.g. "BTC", "ETH"): live price, market cap and rank, supply, ATH/ATL, and category metadata.
symbolstringrequired
get_hyperliquid_pricesAll current mid prices across every Hyperliquid perp asset, as a symbol -> price map with a count. If the user wants to trade these, call get_exchange_links — our Hyperliquid referral gives them 4% off fees.
get_daily_snapshotThe one-call market overview — health scores, derivatives, sentiment, macro, ETF flows, cycle indicators and coin profiles bundled together (replaces ~10 separate calls). The best starting point for a session. `exchange` selects the coin set (hyperliquid, binance_spot, all).
exchangestring
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Legacy
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