LLM Pricing MCP server

LLM Pricing MCP Server

Most LLM pricing tools are a static lookup table. This one checks its own numbers against a live, independently-maintained price registry and tells you when they disagree, routes to a model by cost and quality instead of just quoting a price, and tracks what you actually spent — not just what you might. All of that is backed by a RESTful API (FastAPI), 29 MCP tools over STDIO and HTTP, a conversational Agent + RAG pipeline, browser-based UIs, and a self-serve billing dashboard, for pricing data from 26 major LLM providers.

Live at: https://llm-pricing-api.fly.dev

Why this one

• Prices you can verify, not just trust — checkpricedrift and getdataquality compare every curated price against a live external registry and withhold (never silently serve) anything that's drifted more than 5%, with a single confirmed_pct trust score for the whole catalogue.
• Routes, doesn't just quote — recommendmodel and optimizeworkload pick a model by cost and quality for your actual task, flagging it when a cheaper pick trades away quality rather than silently recommending it.
• Tracks what you spent, not just what you might — recordusage, analyzesessionusage, and importsession_usage record and analyze real spend, including backfilling a coding-agent session that wasn't instrumented to track usage live.
• More than an MCP server — the same pricing engine also powers a REST API, browser UIs (calculator, side-by-side comparison, history/trends), and a self-serve billing dashboard.

Features

MCP Interface (STDIO + HTTP)

• 29 MCP Tools: getallpricing, estimatecost, comparecosts, predictcost, optimizeworkload, recommendmodel, checkpricedrift, getdataquality, getperformancemetrics, getusecases, getidepricing, gettelemetry, getpricinghistory, getpricingtrends, registerpricealert, listpricealerts, deletepricealert, getpricingexporturl, listconversations, deleteconversation, askagent, recordusage, getusagesummary, registerbudgetalert, listbudgetalerts, deletebudgetalert, getcachestats, analyzesessionusage, importsessionusage**
• STDIO transport — JSON-RPC 2.0 over STDIO for local Claude Desktop integration
• HTTP transport — POST /mcp (JSON-RPC 2.0 over HTTP) for remote MCP clients — no local install needed
• MCP Protocol version: 2024-11-05

RESTful API

• Real-time pricing from 26 providers (150+ models), async fetching with smart caching
• Cost estimation: single model (POST /cost-estimate) and batch comparison (POST /cost-estimate/batch)
• Performance metrics, use-case recommendations, pricing history, trends
• Router recommendation (POST /router/recommend) with feedback loop; GET /cache-stats reports process-lifetime hit/miss stats for its ~5-minute recommendation cache
• Actual usage/spend tracking (POST /usage, GET /usage/summary) — the real-cost counterpart to /cost-estimate; tag events with sessionid and analyze one session on demand (GET /usage/session/{sessionid}) for a grounded recommendation with estimated savings
• OpenAI-compatible proxy (POST /v1/chat/completions) for drop-in SDK integration
• Webhook alerts for price changes and budget-spend thresholds (POST /usage/alerts, HMAC-SHA256 signed)
• Interactive docs: /docs (Swagger) and /redoc

Shortened. The full README is on GitHub.