Home / Macro & economics / Frankfurter (FX rates API + MCP)
Frankfurter (FX rates API + MCP)
Free open-source exchange-rate API with central-bank reference rates back to 1948, plus an official hosted MCP endpoint.
Install
https://mcp.frankfurter.dev/Claude → Settings → Connectors → Add custom connector, paste this URL.
claude mcp add --transport http frankfurter https://mcp.frankfurter.dev/{
"mcpServers": {
"frankfurter": {
"url": "https://mcp.frankfurter.dev/"
}
}
}https://mcp.frankfurter.dev/ChatGPT → Settings → Apps & Connectors (developer mode) → Create, paste this URL.
{
"tools": [
{
"type": "mcp",
"server_url": "https://mcp.frankfurter.dev/",
"server_label": "frankfurter"
}
]
}Remote MCP tool in an xAI API request; see docs.x.ai for auth headers.
{
"mcpServers": {
"frankfurter": {
"httpUrl": "https://mcp.frankfurter.dev/"
}
}
}Pricing
- Model
- free
- Free tier
- Free, no API key
- Paid from
- —
- Details
- Free public API and MCP; open-source (MIT), self-hostable.
- Source
- https://frankfurter.dev/ (checked 2026-10-29)
Prices change — always confirm on the vendor's page before buying.
Verification
✓ Verified Reachable, links alive, and (for repos) a commit in the last 180 days.
| ✅ | repo reachable |
| ⚠️ | package published — no npm/PyPI package detected at repo root |
| ✅ | homepage alive |
| ✅ | docs alive |
| ✅ | remote MCP endpoint responds |
Automated check on 2026-10-29. How we verify.