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Token Price API

Official registry Finance and payments

Real-time crypto token prices — price, 24h change, market cap, volume. x402 micropayment.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (sse)
Claude Code 
claude mcp add --transport sse token-price-api 'https://token-price.api.klymax402.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "token-price-api": {
            "type": "sse",
            "url": "https://token-price.api.klymax402.com/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Token Price API
  2. Quickstart -- MCP
  3. Quickstart -- HTTP (x402)
  4. Tools
  5. Example agent prompts
  6. Payment
  7. Part of klymax402
  8. License

Token Price API

Real-time crypto prices via CoinGecko -- price, 24h change, market cap, volume. 10,000+ tokens supported. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.

Quickstart -- MCP

Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):

{
  "mcpServers": {
    "token-price": {
      "url": "https://token-price.api.klymax402.com/mcp"
    }
  }
}

Quickstart -- HTTP (x402)

curl -X POST "https://token-price.api.klymax402.com/api/price" \
  -H "Content-Type: application/json" \
  -d '{"token":"..."}'
# -> 402 Payment Required, with an x402 payment challenge in the response body

Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.

Tools

ToolMethodPathPriceDescription
finance_get_token_pricePOST/api/price$0.003Get real-time crypto token price with 24h change, market cap, and volume
finance_get_token_price

Use this when you need the current price of any cryptocurrency or token. Returns real-time market data in JSON.

Parameters

NameTypeRequiredDescription
tokenstringyesToken name or CoinGecko ID (e.g. bitcoin, ethereum, solana)
currencystringnoTarget currency for price (default: usd). Supports usd, eur, gbp, etc.

Returns

  • price -- current price in the requested currency
  • change24h -- 24-hour price change percentage
  • marketCap -- total market capitalization in USD
  • volume24h -- 24-hour trading volume in USD
  • token -- token identifier used
  • currency -- target currency for the price

Example response:

{"price":3128.60,"change24h":2.45,"marketCap":376000000000,"volume24h":15200000000,"token":"ethereum","currency":"usd"}

When to use: quick price lookups, portfolio valuation, and market monitoring. Supports 10,000+ tokens by CoinGecko ID (e.g. bitcoin, ethereum, solana, dogecoin).

Not for: stock prices (use finance_get_stock_price), token safety (use token_check_safety), historical candles (use token_get_ohlcv_history), currency conversion (use finance_convert_currency).

Example agent prompts

  • "The current price of any cryptocurrency or token"

Payment

  • Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
  • Network: Base L2 (eip155:8453)
  • Asset: USDC
  • Facilitator: Coinbase CDP (primary), PayAI (fallback)
  • Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)

Part of klymax402

100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.

License

MIT

Frequently asked questions

What is Token Price API?

Real-time crypto token prices — price, 24h change, market cap, volume. x402 micropayment.

How do I install Token Price API?

It runs as a remote server. In Claude Code: claude mcp add --transport sse token-price-api 'https://token-price.api.klymax402.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Token Price API need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Token Price API open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains Token Price API?

It is published by Br0ski777. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.