AllRatesToday × DeepSeek

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Give DeepSeek chat and agents real-time access to currency exchange rates and historical data — via function calling.

DeepSeek's Chat Completions API is OpenAI-compatible, so the same tool-calling mechanism works. This package ships ready-to-use tool schemas and a thin agent wrapper that lets DeepSeek answer questions like:

• "What's USD to EUR right now?"
• "Convert 1000 GBP to JPY."
• "How has USD/INR moved over the last 30 days?"
• "List every supported currency."

Powered by the AllRatesToday API — 160+ currencies, mid-market rates from Reuters/Refinitiv, public endpoints that need no API key.

Install

pip install allratestoday-deepseek

Quick start — one-shot

export DEEPSEEK_API_KEY=sk-...      # from platform.deepseek.com/api_keys
allratestoday-deepseek --ask "What is 2500 USD in EUR right now?"

Quick start — interactive chat

allratestoday-deepseek
# or:
python examples/chat.py

Library usage

from allratestoday_deepseek import DeepSeekCurrencyAgent

with DeepSeekCurrencyAgent() as agent:
    print(agent.ask("How many Japanese Yen is 500 Swiss Francs?"))

Need finer control? Use the tool schemas directly with the OpenAI SDK pointed at DeepSeek — see examples/raw_tool_call.py.

Tools exposed

Public tools (get_exchange_rate, convert_currency, list_currencies) work without a key. Set ALLRATES_API_KEY for historical data and multi-target queries.

Environment variables

How it works

1. You send DeepSeek a question.
2. The agent calls chat.completions.create(..., tools=TOOLS) — DeepSeek receives all 5 tool schemas.
3. If DeepSeek decides it needs a rate, it emits a tool_call (e.g. get_exchange_rate(source="USD", target="EUR")).
4. The agent runs the tool against the AllRatesToday API and passes the JSON result back.
5. DeepSeek produces a final natural-language answer, citing the live rate.

No hallucinated rates — the agent never answers without calling the tool first.

Compatibility

• DeepSeek models that support function calling (deepseek-chat, deepseek-reasoner).
• Python 3.9+.
• Works on Linux, macOS, and Windows.

Related

• MCP server: @allratestoday/mcp-server — for Claude Code, Cursor, and Claude Desktop.
• JavaScript SDK: @allratestoday/sdk — raw SDK for any Node.js or browser app.
• Docs: allratestoday.com/developers

License

MIT — see LICENSE.