Free API key
Higher limits for your assistant, free.
Confirm your email and get a key in under a minute. Add it to Claude Code or claude.ai and your assistant can check a verdict before it recommends a tool, without hitting the anonymous limit.
What you get
- 120 requests per minute and 2,000 per day (anonymous is 20 per minute)
- The same eight read-only tools: library_info, search, browse, get_item, why, categories, search_apis, recent
- One key per email; request a new one any time (the old key stops working)
Prefer to try it first? The MCP also works with no key at the anonymous limit. Setup guide.
Tiers
Free, and what lifts the limits
| Anonymous | Free key | Pro or donation | |
|---|---|---|---|
| Requests per minute | 20 | 120 | 600 |
| Requests per day | no daily cap | 2,000 | 50,000 |
| Core catalog tools (8) | yes | yes | yes |
| Use cases and workflows | no | no | yes |
| Cost | free | free | see Pro |
Privacy, plainly
- Your email is used to send the confirmation link and your key, and for occasional NAIC updates. Every email has an unsubscribe link.
- We store your key only as a one-way hash, so we cannot read it back; if you lose it, request a new one.
- For each key we count calls, errors and speed per tool per day to improve the service. We never store what you search for.
- No ad trackers, no reselling. Details in the privacy policy.
Questions
I did not get the email.
Check spam or promotions, then request it again. We send at most three confirmation emails per address per hour.
Can I have more than one key?
One key per email. A new confirmed request replaces the old key, so a leaked key is easy to retire.
Is the key tied to my payment?
No. A free key works on its own. Paying or donating on WHOP with the same email upgrades the same key automatically.
Already have a key?
Add it to Claude Code or a claude.ai custom connector.