Agent skill · marketing growth · mvanhorn
pp-exchangerate-api
Every ExchangeRate-API endpoint, plus a local rate history, watchlists, drift alerts, and an MCP server no one else... Trigger phrases: `convert USD to EUR`, `what's the exchange rate for`, `check my FX quota`, `sync exchange rates`, `what was USD/EUR last week`, `use exchangerate-api`, `run exchangerate-api`.
Why this skill is useful
Adds unique commands for managing FX rates and historical data that aren't available in public documentation.
What it needs
Requires exchangerate-api-pp-cli installed locally. About 7k tokens when loaded. Last updated 2026-08-06. 1,890 stars on the source repository.
What this skill does
ExchangeRate-API — Printing Press CLI Prerequisites: Install the CLI This skill drives the exchangerate-api-pp-cli binary. You must verify the CLI is installed before invoking any command from this skill. If it is missing, install it first: 1. Install via the Printing Press installer. It defaults binaries to $HOME/.local/bin on macOS/Linux and %LOCALAPPDATA%\Programs\PrintingPress\bin on Windows: 2. Verify: exchangerate-api-pp-cli --version 3. Ensure the reported install directory is on $PATH for the agent/runtime that will invoke this skill. If the npx install fails (no Node, offline, etc.), fall back to a direct Go install (requires Go 1.26.6 or newer): If --version reports "command not found" after install, the runtime cannot see the binary directory on $PATH. Do not proceed with skill commands until verification succeeds. When to Use This CLI Reach for exchangerate-api-pp-cli whenever an agent or script needs live FX rates, multi-target conversions, or persistent historical context. It's the right pick over a one-off HTTP call when the agent will run more than once on the same data, when quota matters (1500/mo Free tier), or when the workflow benefits from a watchlist, drift report, or cross-rate matrix that requires local state. Use the MCP server (mcp serve) when wiring FX context into Claude Desktop, Cursor, or Windsurf. When Not to Use This CLI Do not activate this CLI for requests that require creating, updating, deleting, publishing, commenting, upvoting, inviting, ordering, sending messages, booking, purchasing, or changing remote state. This printed CLI exposes read-only commands for inspection, export, sync, and analysis. Unique Capabilities These capabilities aren't available in any other tool for this API. Local state that compounds history-cache — Reconstruct historical FX rates from your prior latest syncs — free tier gets time travel without /history quota. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills mvanhorn/pp-exchangerate-api--ffd908