marketstack-mcp

marketstack-mcp

Marketstack API: end-of-day prices, historical EOD, ticker search, exchanges, dividends.

Setup

export MARKETSTACK_API_KEY=...

Tools

• get_latest_eod — Latest end-of-day open/high/low/close/volume for stock symbols.
• get_eod_on_date — End-of-day prices for symbols on one trading date.
• search_tickers — Search stock tickers by name or symbol: exchange, currency, MIC.
• list_exchanges — Stock exchanges covered by Marketstack with MIC codes and countries.
• get_dividends — Dividend declarations for symbols: amount, pay date, record date.

Premium tools

These tools need a licence key:

• symbol_dividend_ledger
• price_window_review

The tool bodies run on our gateway, not inside this package, so the key is what buys access. Buy one at https://buy.polar.sh/polar_cl_mrO7rS5LZxpqM7oAFFEA10i9121J240U40IIj4JRZO4 and set it in your MCP client config:

"env": { "MCP_LICENSE_KEY": "polar_..." }

The gateway checks the key against Polar and gives every key 1,000 free premium calls a month before per-call billing starts. Every other tool on this server stays free.