Lightning AI Model APIs

Hosted inference API that serves frontier and open models behind a Lightning API key, billed per token with a free monthly token allowance. Accessible through the litai Python client and through OpenAI- and Anthropic-compatible client configuration, with per-plan requests-per-minute and tokens-per-minute limits.

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/model-apis"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

A second provider on the same verified email joins the account you already have.

API entry from apis.yml

apis.yml Raw ↑
aid: lightning-ai:model-apis
name: Lightning AI Model APIs
description: Hosted inference API that serves frontier and open models behind a Lightning API key, billed
  per token with a free monthly token allowance. Accessible through the litai Python client and through
  OpenAI- and Anthropic-compatible client configuration, with per-plan requests-per-minute and tokens-per-minute
  limits.
humanURL: https://lightning.ai/docs/platform/inference/model-apis
baseURL: https://lightning.ai
tags:
- Inference
- LLM
- Model APIs
- Tokens
properties:
- type: Documentation
  url: https://lightning.ai/docs/platform/inference/model-apis
- type: RateLimits
  url: rate-limits/lightning-ai-rate-limits.yml
- type: Models
  url: https://lightning.ai/models