Introduction
What ClaudeAPIKey.dev is, which endpoints it speaks, and how it differs from calling Anthropic directly.
ClaudeAPIKey.dev is an Anthropic-compatible API gateway. You point an existing SDK at one base URL, use one key, and reach Claude, GPT, Gemini and MiniMax models through the request format you already use.
Base URL
https://aiprimetech.ioAPI formatsAnthropic Messages and OpenAI Chat Completions
Auth
x-api-key (Anthropic style) or Authorization: Bearer (OpenAI style)Models9, across Anthropic, OpenAI, Google and MiniMax
BillingPrepaid credits, or a flat-rate unlimited plan
Setup timeTwo environment variables
What you get
| Area | What it means |
|---|---|
| Drop-in compatibility | The same request bodies, the same response shapes, the same streaming events as the official APIs. You change the base URL, not your code. |
| One key, many vendors | A single credential reaches Claude, GPT, Gemini and MiniMax. No separate accounts or dashboards per provider. |
| Both wire formats | /v1/messages for Anthropic-style clients, /v1/chat/completions for OpenAI-style clients — against the same models. |
| Tool compatibility | Claude Code, Cursor, Cline, Aider, Zed, Continue, OpenCode and anything else that honours a custom base URL. |
| Pay-as-you-go | Prepaid credits that do not expire, or a flat-rate unlimited plan for a fixed window. |
How it differs from calling Anthropic directly
Functionally it should not differ at all — that is the design goal. The differences that matter are commercial and operational:
- Price. Published rates run 60–80% below list for the Claude family. See Pricing.
- No waitlist or org approval. An account and a top-up are all that is needed.
- Payment options. Bank card or crypto, including from regions where Anthropic billing is unavailable.
- Routing. Requests are distributed across upstream capacity with automatic failover, so a single upstream error does not surface as a hard failure.
We are a reseller of API capacity, not Anthropic. If you need a contractual relationship with Anthropic itself, an enterprise SLA, or data-processing terms signed by Anthropic, use the official API. ClaudeAPIKey.dev is an independently operated API gateway. "Claude" and "Anthropic" are trademarks of Anthropic; we are not affiliated with, endorsed by, or sponsored by Anthropic, OpenAI or Google.
Which format should I use?
Use whichever your tool already speaks — both hit the same models and cost the same.
| If your tool is… | Use | Auth header |
|---|---|---|
| Claude Code, Anthropic SDK, Cline, any Claude client | POST /v1/messages | x-api-key |
| Cursor, Continue, OpenAI SDK, LangChain, LiteLLM | POST /v1/chat/completions | Authorization: Bearer |