onecall-mcp
onecall-mcp
Ein MCP-Server (Model Context Protocol), der 10 produktionserprobte öffentliche APIs ohne Authentifizierung als Tools für KI-Agenten bereitstellt.
Basierend auf onecall. Keine API-Schlüssel. Python-Standardbibliothek. MIT.
weather_current(location) # wttr.in
weather_forecast(lat, lon, days) # open-meteo
fx_convert(amount, from, to) # frankfurter (ECB)
fx_rates(base, symbols) # frankfurter
crypto_price(ids, vs_currency) # coingecko
geocode(query, limit) # openstreetmap nominatim
country_info(query) # REST Countries
time_in_zone(timezone) # timeapi.io
hn_front() # Hacker News top 10
hn_search(query, limit) # Hacker News Algolia searchWarum es das gibt
Die meisten KI-Agenten müssen Wetter-, Devisen-, Krypto-, Geocoding-, Zeit-, Länder- und Nachrichtenabfragen durchführen. Die Daten sind frei im offenen Web verfügbar. Aber der Agent braucht Tools, keine URLs. Dieser Server stellt jedem MCP-kompatiblen Client (Claude Desktop, Cursor, Windsurf, Cline, OpenAI Codex CLI usw.) alle 10 in einem Prozess bereit.
Related MCP server: tes-mcp-server
Installation
Claude Desktop
Fügen Sie Folgendes zu ~/Library/Application Support/Claude/claude_desktop_config.json hinzu:
{
"mcpServers": {
"onecall": {
"command": "python3",
"args": ["/path/to/onecall-mcp/src/onecall_mcp_server.py"]
}
}
}Cursor
Einstellungen → Features → Model Context Protocol → Neuen globalen MCP-Server hinzufügen. Gleicher Befehl/dieselben Argumente.
Windsurf / Cline / andere
Gleiche Struktur — command ist der Python-Interpreter, args ist der absolute Pfad zu onecall_mcp_server.py.
Verifizieren
# End-to-end JSON-RPC over stdio test
bash tests/mcp_stdio_smoke.shLetzter Durchlauf: 10/10 PASS (2026-08-26). Initialize, tools/list, tools/call liefern alle korrektes JSON-RPC 2.0 mit Live-API-Daten.
Architektur
Nur Standardbibliothek. Keine Abhängigkeit vom
mcp-Paket, keinrequests, kein SDK. Nururllib+json+asyncio.stdio JSON-RPC 2.0. Gemäß MCP-Spezifikation 2024-11-05.
Verwendet das
_lib/http.pyvon onecall für Wiederholungen, URL-Kodierung und einheitliches Envelope.--demo-Flag gibt den Tool-Katalog aus und führt einen Live-Aufruf aus, nützlich für Plausibilitätsprüfungen.
Smoke-Test-Belege (2026-08-26)
=== Passed: 10 Failed: 0 ===10 Assertions, die Folgendes abdecken: Protokoll-Handshake, Fähigkeitsaushandlung, Tool-Erkennung, Tool-Aufruf, Live-API-Antwort.
Roadmap
Die verbleibenden 4 onecall-Wrapper hinzufügen (sunrise, catfact, cataas, nager holidays)
HTTP-Transport (derzeit nur stdio)
Nutzungsverfolgung pro Aufruf + x402-Stablecoin-Paywall-Integration
Auflistung auf glama.ai, smithery.ai, mcpmarket.com, mcpservers.org
Lizenz
MIT.
This server cannot be installed
Maintenance
Resources
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Related MCP Connectors
Real-world data for agents: air quality, geocoding, quakes, holidays, web search
Give your agent live data from Twitter, Reddit, the web and GitHub. No API keys, no scraping stack.
Pay-per-use weather, environment, finance, and on-chain intelligence tools for AI agents via x402.
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