Summary
A lightweight pricing oracle that exposes LiteLLM's model cost database through four MCP tools. You can look up any model's pricing and capabilities with fuzzy matching (get_model_details), estimate costs for token counts (calculate_estimate), compare models by provider or mode (compare_models), and refresh the local price cache (refresh_prices). The data comes from LiteLLM's community registry and updates daily. No API keys or configuration required. Useful when you're prototyping with multiple models and need quick cost comparisons, or when you want your AI assistant to factor pricing into its recommendations without leaving the conversation to check documentation.
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tokencost
Ask your AI assistant "how much does GPT-4o cost?" — get an instant, accurate answer.
Install in 30 seconds
Claude Code:
claude mcp add tokencost-dev -- npx -y tokencost-dev
Then ask: "How much would 1M input tokens cost on claude-sonnet-4-5?"
Cursor (.cursor/mcp.json):
{
"mcpServers": {
"tokencost-dev": {
"command": "npx",
"args": ["-y", "tokencost-dev"]
}
}
}
No API keys. No accounts. No configuration files. Pricing data is fetched from the LiteLLM community registry and cached locally for 24 hours.
Tools
get_model_details
Look up pricing, context window, and capabilities for any model. Fuzzy matching means "sonnet 4.5" works just as well as "claude-sonnet-4-5-20250514".
> "What are Claude Sonnet 4.5's pricing and capabilities?"
Model: claude-sonnet-4-5
Provider: anthropic | Mode: chat
Pricing (per 1M tokens):
Input: $3.00
Output: $15.00
Context Window:
Max Input: 200K
Max Output: 8K
Capabilities: vision, function_calling, parallel_function_calling
calculate_estimate
Estimate cost for a given number of input and output tokens.
> "How much will 1000 input + 500 output tokens cost on Claude Sonnet 4.5?"
Cost Estimate for claude-sonnet-4-5
Input: 1K tokens × $3.00/1M = $0.003000
Output: 500 tokens × $15.00/1M = $0.007500
─────────────────────────────
Total: $0.0105
compare_models
Find the most cost-effective models matching your requirements.
> "What are the cheapest OpenAI chat models?"
Top 2 most cost-effective models (provider: openai) (mode: chat):
1. gpt-4o-mini
Provider: openai | Mode: chat
Input: $0.15/1M | Output: $0.60/1M
Context: 128K in / 16K out
2. gpt-4o
Provider: openai | Mode: chat
Input: $5.00/1M | Output: $15.00/1M
Context: 128K in / 16K out
refresh_prices
Force re-fetch pricing data from the LiteLLM registry (cache is refreshed automatically every 24h).
Docs
Full documentation at tokencost.dev
License
MIT
Featured
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →Categories
Registryactive
Packagetokencost-dev
TransportSTDIO
UpdatedFeb 27, 2026
