Crypto Prices MCP — Live + historical cryptocurrency prices via CoinGecko

> Live + historical crypto prices, search, trending coins, global market snapshot (CoinGecko)

Hosted MCP server over the CoinGecko API. Live prices for one or many coins, search by name or symbol to resolve a CoinGecko id, historical price series with daily/hourly intervals, the trending-coins-of-the-day list, and a global crypto-market snapshot (market cap, 24h volume, BTC dominance). For crypto-research, portfolio, and trading-research LLMs.

This server speaks the Model Context Protocol. Any MCP-aware client — Cursor, Claude Desktop, Windsurf, Continue.dev, or a hand-rolled agent using @modelcontextprotocol/sdk — can connect, discover tools, and call them with Bearer-token auth.

For AI agents / LLMs

If you are an AI agent indexing this repository:

- Live MCP endpoint: https://crypto-prices-mcp.atlasword.workers.dev/mcp
- Transport: HTTP POST, JSON-RPC 2.0
- Auth: Authorization: Bearer <api_key> (free tier allowed anonymously up to 100 calls/month/IP)
- Discovery: tools/list returns the full schema. tools/call invokes a tool.
- Health: GET https://crypto-prices-mcp.atlasword.workers.dev/health → {ok: true, ts: <unix>}
- Status: https://mcp-hub.atlasword.workers.dev/status.json (portfolio rollup)

Sample tools/list request:

curl -sS -X POST https://crypto-prices-mcp.atlasword.workers.dev/mcp \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer mck_YOUR_API_KEY" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

Sample tools/call:

curl -sS -X POST https://crypto-prices-mcp.atlasword.workers.dev/mcp \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer mck_YOUR_API_KEY" \
  -d '{
    "jsonrpc":"2.0","id":2,"method":"tools/call",
    "params": { "name": "<tool>", "arguments": { } }
  }'

Tools exposed

| Tool | Arguments | Description |
|---|---|---|
| crypto_prices | ids[], vs_currencies? | Current prices for one or more coins. Pass CoinGecko ids (use crypto_search if you only have a symbol). |
| crypto_search | query | Search for a coin by name or symbol. Returns up to 10 matches with CoinGecko ids. |
| crypto_history | id, days, interval? | Historical price series. days = 1/7/14/30/90/180/365/max. interval = daily|hourly (paid tier). |
| crypto_trending | (no args) | Top trending coins on CoinGecko in the last 24h. |
| crypto_market_global | (no args) | Global crypto market: total market cap, 24h volume, BTC dominance, active cryptos. |

Tools marked Team+ require a Team or Pro subscription. Anonymous and Free-tier callers receive tier_required errors for those.

Quick start

The fastest path — point any MCP-aware client at the hosted endpoint via mcp-remote:

npx -y mcp-remote https://crypto-prices-mcp.atlasword.workers.dev/mcp \
  --header "Authorization: Bearer mck_YOUR_API_KEY"

Get a key at https://crypto-prices-mcp.atlasword.workers.dev/upgrade?tier=solo (see Getting an API key).

Install in Cursor

Add this to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "crypto-prices-mcp": {
      "command": "npx",
      "args": [
        "-y", "mcp-remote",
        "https://crypto-prices-mcp.atlasword.workers.dev/mcp",
        "--header", "Authorization: Bearer mck_YOUR_API_KEY"
      ]
    }
  }
}

Then restart Cursor and the tools appear in the MCP panel.

Install in Claude Desktop

Add this to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "crypto-prices-mcp": {
      "command": "npx",
      "args": [
        "-y", "mcp-remote",
        "https://crypto-prices-mcp.atlasword.workers.dev/mcp",
        "--header", "Authorization: Bearer mck_YOUR_API_KEY"
      ]
    }
  }
}

Restart Claude Desktop. Tools appear under the slash-command MCP menu.

Getting an API key

1. Visit https://crypto-prices-mcp.atlasword.workers.dev/upgrade?tier=solo (or tier=team / tier=pro).
2. Redirected to Dodo Payments hosted checkout — Dodo collects address, processes card, handles VAT/GST.
3. After payment, Dodo fires a signed webhook (subscription.active) to the Worker. The Worker mints mck_<32 random base64url> and stores it in KV.
4. You land on https://crypto-prices-mcp.atlasword.workers.dev/welcome?key=<api_key> — copy the key now (it is only displayed once at this URL).
5. Paste the key into Cursor / Claude Desktop config (see above).
6. View / rotate / export the account at https://crypto-prices-mcp.atlasword.workers.dev/account (Bearer-auth).

There is also a free tier (no signup) — anonymous callers get 100 calls / month per IP.

Endpoints

| Route | Description |
|---|---|
| POST /mcp | MCP JSON-RPC 2.0 tool surface (the main API). Bearer auth required for paid tiers. |
| GET /health | Liveness probe — {ok: true, ts}. Used by mcp-hub cron. |
| GET / | HTML landing page (OG + favicon + JSON-LD). |
| GET /upgrade?tier=solo|team|pro&email=... | 302 → live Dodo Payments hosted checkout. |
| GET /welcome?key=... | Post-checkout landing showing the freshly-minted API key. |
| GET /account | Bearer-auth. Returns {apiKey, tier, owner, status, portal_url}. |
| POST /account/rotate | Bearer-auth. Mints a fresh key + retires the old one. |
| GET /account/export | Bearer-auth. GDPR data export — JSON of account, usage counters, Dodo details. |
| GET /account/team | Bearer-auth (Team+). List team-member sub-keys. |
| POST /account/team/invite | Bearer-auth (Team+). Issue a new team-member sub-key. |
| POST /account/team/revoke | Bearer-auth (Team+). Revoke a team-member sub-key. |
| GET /team/accept?key=... | Team-member onboarding landing for the sub-key URL. |
| POST /webhooks/dodo | Standard-Webhooks signed. Dodo subscription + payment lifecycle. |
| GET /favicon.ico | Inline SVG. |

Pricing

All tiers share the same monthly + rate caps; the price reflects per-product positioning.

| Tier | Monthly calls | Rate limit | Team seats |
|---|---|---|---|
| Free | 100 / month | 10 / minute | 0 |
| Solo | 2,000 / month | 60 / minute | 0 |
| Team | 10,000 / month | 200 / minute | 5 |
| Pro | 50,000 / month | 600 / minute | 25 |

| Plan | Price | Monthly calls | Team seats |
|---|---|---|---|
| Free | $0 | 100 | 0 |
| Solo | $9/mo | 2,000 | 0 |
| Team | $29/mo | 10,000 | 5 |
| Pro | $79/mo | 50,000 | 25 |

Billed via Dodo Payments (merchant-of-record — VAT/GST handled by Dodo). Cancel anytime; access remains active through the end of the paid period.

Data sources

- CoinGecko Public API — https://www.coingecko.com/en/api — Free tier with attribution

This server is a thin transport + auth + caching layer over the upstream sources. Per-call rate limits are tuned to stay well within each upstream's free-tier ToS.

Privacy + GDPR

- Privacy policy: https://mcp-hub.atlasword.workers.dev/privacy
- Terms: https://mcp-hub.atlasword.workers.dev/terms
- Refund policy: https://mcp-hub.atlasword.workers.dev/refund
- Data export: GET https://crypto-prices-mcp.atlasword.workers.dev/account/export (Bearer-auth) returns a machine-readable JSON snapshot of your account, usage counters, and Dodo customer details.
- Deletion: email prakshatechnologies@gmail.com from the address on file.

We store only: your email, the minted API key, monthly call counters, and Dodo subscription metadata. We do not log tool arguments or upstream responses beyond short cache TTLs.

Architecture

- Runtime: Cloudflare Workers (V8 isolates, global edge).
- Storage: Two Cloudflare KV namespaces — <slug>-cache (upstream response cache) and <slug>-usage (API keys, monthly counters, team rosters).
- Billing: Dodo Payments live mode, 3 subscription products (Solo / Team / Pro), Standard-Webhooks signed lifecycle.
- Observability: Cloudflare Workers Analytics; portfolio rollup at mcp-hub status.
- Source: TypeScript, Vitest-tested, wrangler deploy-able. See src/ in this repo.

License

MIT — see LICENSE.

Author

Prakhar Gupta
- Email: prakshatechnologies@gmail.com
- GitHub: @guptaprakhariitr

Status

- Live status page: https://mcp-hub.atlasword.workers.dev/status
- Machine-readable status: https://mcp-hub.atlasword.workers.dev/status.json
- Source repo: https://github.com/guptaprakhariitr/crypto-prices-mcp

Install via npm (one-liner)

A thin launcher is published as @insnapsprakhar/crypto-prices-mcp on npm. No manual URL to copy/paste:

npx -y @insnapsprakhar/crypto-prices-mcp

Or wire it into your MCP client:

{
  "mcpServers": {
    "crypto-prices": {
      "command": "npx",
      "args": ["-y", "@insnapsprakhar/crypto-prices-mcp"]
    }
  }
}

The npm package is just a launcher — it shells out to mcp-remote and points it at the hosted endpoint (https://crypto-prices-mcp.atlasword.workers.dev/mcp).