# Sigstore Fulcio API (consumed)

**Canonical:** https://apis.io/apis/cosign/fulcio-api/  
**Provider:** Cosign — https://apis.io/providers/cosign/  
**Base URL:** https://fulcio.sigstore.dev  
**Documentation:** https://docs.sigstore.dev/certificate_authority/overview/

Sigstore Fulcio API (consumed) is one of 3 APIs that [Cosign](https://apis.io/providers/cosign/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include CA, Certificates, Fulcio, OIDC, and Sigstore. The published artifact set on APIs.io includes API documentation and a GitHub repository.

Fulcio is the Sigstore certificate authority that issues short-lived X.509 code-signing certificates bound to OIDC identities. Cosign calls the Fulcio public CA at fulcio.sigstore.dev during keyless signing to obtain a certificate for a verified identity.

## Machine-readable artifacts (2)

- **Documentation** — https://docs.sigstore.dev/certificate_authority/overview/
- **GitHubRepository** — https://github.com/sigstore/fulcio

## Other Cosign APIs (2)

- [Cosign CLI](https://apis.io/apis/cosign/cosign-cli/)
- [Sigstore Rekor API (consumed)](https://apis.io/apis/cosign/rekor-api/)

## Tags

CA, Certificates, Fulcio, OIDC, Sigstore

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/cosign/fulcio-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/cosign/.