Reach the organizations that move your ecosystem.
Offer a benefit to the contributors of the initiatives you care about, verified by the people who know them.
Choose who it is for
The lead contributors of a coalition, the participants of an event, the open data providers of a project.
The initiative approves
Each initiative decides who reaches its contributors. You never receive a list.
Contributors claim it
From their certificate, with your code or your link. You see how many claimed it.
Check a key from your site
Ask whether a certificate holds a key today. The key comes with your offer; the code is at the end of the contributor’s certificate link.
GET https://contribase.com/api/v1/keys/{key}/certificates/{code}
{ "valid": true, "until": "2026-12-31" }