Stock Price X402
About
Real-time stock quotes -- price, change %, volume, market cap, company name. All major US and intl exchanges. -- x402 micropayment API + MCP server for AI agents
Details
- Author
- Br0ski777
- Downloads
- 639
- Categories
- Finance
Jump to
- Real-time stock quotes from major US and international exchanges
- Pay-per-call via x402 protocol (USDC on Base L2)
- No API key, signup, or rate-limit walls
- Single MCP tool: finance_get_stock_price
- Returns price, change, volume, market cap, and company name
Setting up with Highlight
This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:
- Download and install Highlight from highlightai.com/download
- Navigate to the plugins tab and select "Add Custom Plugin"
-
Configure the plugin with the settings below
Plugin Name
Stock Price X402Command (node, npx, python, etc.)Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
- Enable "Start Automatically" if you want the plugin to start when Highlight launches
From the repository
Add the server URL https://stock-price.api.klymax402.com/mcp to your MCP client configuration (Claude Desktop, Cursor, ElizaOS, etc.). Then use the tool finance_get_stock_price with a symbol parameter (e.g., AAPL, TSLA). x402-aware HTTP clients can also call the /api/quote endpoint directly.
Claude Desktop / Cursor
Paste into your MCP client config file to install this server.
{
"mcpServers": {
"stock price x402": {
"stock-price": {
"url": "https://stock-price-production-3ec1.up.railway.app/mcp",
"transport": "sse"
}
}
}
}McpServers
{
"stock-price": {
"url": "https://stock-price-production-3ec1.up.railway.app/mcp",
"transport": "sse"
}
}Stock Price API
Real-time stock quotes -- price, change %, volume, market cap, company name. All major US and intl exchanges. 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": {
"stock-price": {
"url": "https://stock-price.api.klymax402.com/mcp"
}
}
}
Quickstart -- HTTP (x402)
curl -X POST "https://stock-price.api.klymax402.com/api/quote" \
-H "Content-Type: application/json" \
-d '{"symbol":"BTC"}'
-> 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
| Tool | Method | Path | Price | Description |
|---|---|---|---|---|
| finance_get_stock_price | POST | /api/quote | $0.002 | Get real-time stock quote with price, change, volume, and market cap |
finance_get_stock_price
Use this when you need a real-time stock price quote. Returns market data for any ticker symbol in JSON.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| symbol | string | yes | Stock ticker symbol (e.g. AAPL, TSLA, MSFT, GOOG) |
Example response:
{"symbol":"AAPL","companyName":"Apple Inc.","price":198.45,"change":2.30,"changePercent":1.17,"volume":54200000,"marketCap":3050000000000,"exchange":"NASDAQ","previousClose":196.15,"dayHigh":199.10,"dayLow":196.80}
When to use: portfolio monitoring, financial analysis, building stock dashboards, price alerts, and investment research.
Not for: crypto prices (use finance_get_token_price), currency conversion (use finance_convert_currency), weather data (use data_get_weather).
Example agent prompts
- "A real-time stock price quote"
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.
- Catalog: https://klymax402.com/llms.txt
- Full API reference: https://klymax402.com/llms-full.txt
- Live stats: https://klymax402.com/stats
License
MIT
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