Cloudflare Workers AI free tier
Free inference at the edge, same platform your sites already run on.
| Free tier type | Permanent free tier |
|---|---|
| What you get free | 10,000 'neurons' of free usage per day on the free plan. |
| Credit card | No card required |
| Signup | Free Cloudflare account — developers.cloudflare.com/workers-ai/ |
| API endpoint | Per-account REST endpoint (OpenAI-compatible mode available) (OpenAI-compatible) |
| Top free models | Llama 3.1 8BLlama 4 ScoutEmbeddings, vision, speech, image models |
Copy-paste setup
Two things: the base URL above, and a free key from the provider's site. Pick your tool:
export OPENAI_BASE_URL="Per-account REST endpoint (OpenAI-compatible mode available)" export OPENAI_API_KEY="your-key-here" # then pick one of the provider's models in your tool
Settings → Models → paste your key under the matching provider, or use 'Override OpenAI Base URL' with: Per-account REST endpoint (OpenAI-compatible mode available)
# ~/.codex/config.toml model_provider = "custom" [model_providers.custom] base_url = "Per-account REST endpoint (OpenAI-compatible mode available)" env_key = "OPENAI_API_KEY"
Claude Code natively speaks the Anthropic API. To use the providers on this page, point it at a router/gateway (e.g. an OpenAI-to-Anthropic proxy) configured with: Per-account REST endpoint (OpenAI-compatible mode available)
Choose 'OpenAI Compatible' as the provider, then paste: Base URL: Per-account REST endpoint (OpenAI-compatible mode available) API key: your key Model: one of the models listed on this page
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Cloudflare Workers AI — FAQ
Is Cloudflare Workers AI really free?
Cloudflare Workers AI is listed in our index as: Permanent free tier. 10,000 'neurons' of free usage per day on the free plan. We last probed its API endpoint on 2026-08-19. Always confirm current limits on the provider's own pricing page.
Does Cloudflare Workers AI need a credit card?
No card required. Signup: Free Cloudflare account.
How do I use Cloudflare Workers AI in my coding tool?
Cloudflare Workers AI exposes an OpenAI-compatible endpoint (Per-account REST endpoint (OpenAI-compatible mode available)). Paste that base URL plus your key into Cursor, Codex CLI, a Claude Code router, or any OpenAI-compatible tool — the snippets on this page are copy-paste ready.
Free APIs build the prototype.
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