InferCPI
AI inference price index: token prices, cost per capability, open vs closed, hosts, cost per task.
Installation
Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).
claude mcp add --transport http infercpi 'https://infercpi.com/mcp'
{
"mcpServers": {
"infercpi": {
"type": "http",
"url": "https://infercpi.com/mcp"
}
}
}
Documentation
Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.
InferCPI API
InferCPI tracks what AI inference costs: list prices, what buyers actually pay, the cost of a fixed level of capability, open vs closed models, third-party hosts, self-hosting, and cost per completed task. Site: **https://infercpi.com**.
This repo holds the public API docs, examples and the MCP server. The data is free, needs no key, and is licensed CC BY 4.0: cite as InferCPI, infercpi.com.
API
Static JSON at https://infercpi.com/v1/. Full reference: **https://infercpi.com/api.html**.
| File | What |
|---|---|
latest.json | Last value of every series, plus the weekly editorial note |
index.json | Catalogue of every series: point count, dates, method string, URL |
series/<signal>/<key>.json | Full history: points: [[unix_ts, value], ...] and method |
basket.json | Every model priced this week: input, output and blended $/1M, context, Epoch ECI, open or closed |
events.json | Launches, price cuts, increases and removals since Sep 2023 |
speed.json | Our daily speed run: time to first token, tokens per second |
token_mix.json | Tokens routed through OpenRouter per week, by lab and region |
capex.json | Hyperscaler capex, chip and cloud revenue by quarter (SEC filings) |
curl -s https://infercpi.com/v1/latest.json | jq '.latest["weighted_index/paid_usd_1m"]'
More in examples/.
MCP server
mcp_server.py gives agents ten read-only tools over the API: index_latest, index_series, index_catalogue, basket, model_price, events, speed, open_vs_closed, self_hosting, cost_per_task.
Hosted, no key: https://infercpi.com/mcp (streamable HTTP).
claude mcp add --transport http infercpi https://infercpi.com/mcp # Claude Code
Claude.ai and Claude Desktop: Settings → Connectors → Add custom connector, paste the URL.
Or run it yourself:
mkdir -p ~/.local/share/infercpi
curl -so ~/.local/share/infercpi/mcp_server.py https://raw.githubusercontent.com/Infer-CPI/api/main/mcp_server.py
pip install mcp # mcp 1.x or 2.x both work
claude mcp add infercpi -s user -- python3 ~/.local/share/infercpi/mcp_server.py # Claude Code
python3 ~/.local/share/infercpi/mcp_server.py --http # or: streamable HTTP on :8765
Claude Desktop (claude_desktop_config.json):
{ "mcpServers": { "infercpi": { "command": "python3", "args": ["/home/YOU/.local/share/infercpi/mcp_server.py"] } } }
It reads https://infercpi.com by default; set INFERCPI_BASE to point elsewhere.
Method and sources
How every series is built: **https://infercpi.com/methodology.html**. Inputs: LiteLLM and pydantic/genai-prices (MIT), Epoch AI Capabilities Index (CC BY 4.0), OpenRouter rankings (CC BY 4.0), SEC filings (public domain). Speed and cost per task are our own measurements.
Licence
Code in this repo: MIT. Index data: CC BY 4.0. Questions, corrections or a series you need: open an issue.
Questions fréquentes
Qu'est-ce que InferCPI ?
AI inference price index: token prices, cost per capability, open vs closed, hosts, cost per task.
Comment installer InferCPI ?
Il fonctionne comme serveur distant. Dans Claude Code : claude mcp add --transport http infercpi 'https://infercpi.com/mcp'. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.
Faut-il une clé API pour InferCPI ?
Son entrée au registre n'indique aucune clé ni secret obligatoire. Certaines fonctions peuvent tout de même demander un compte auprès du service auquel il se connecte.
InferCPI est-il open source ?
Son code est public sur GitHub, mais le dépôt ne déclare pas de licence standard.
Qui maintient InferCPI ?
Il est publié par Infer-CPI. AI.tn le référence sans le maintenir ni le recommander.
Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.