Kolni
Small, sharp APIs for developers. One job each, generous free tier, no sales call.
How they all work
- Sign up on any product's page and get a key immediately โ no card, no call.
- Send it as
X-Api-Key. Every API takes JSON and returns JSON or a file. - Each publishes an
openapi.jsonand anllms.txt, so your tooling and your coding agent can read them.