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regfish DNS & TLS API
v1.6.2
Developer Hub
API-first automation for domains, DNS, and TLS.
Use documented workflows, practical examples, and open source integrations to turn domain, DNS, and TLS automation into real projects fast.
Generated
Jul 18, 2026, 9:55 AM
OpenAPI updated
Apr 3, 2026, 1:48 PM
API reference
30
Models & types
77
Recipes
14
DNS
DNS automation
Read, create, update, and delete DNS records.
TLS
TLS certificates
Order, manage, revoke, and download TLS certificates.
Recipes
View all recipesWorkflow recipes
Step-by-step recipes connect multiple endpoints into a practical workflow and show how the API is used in production-style automation.
Recipe
TLS automation with regfish certbro
Install regfish certbro, configure API access, issue a certificate with automated DNS DCV, and enable unattended renewals on Linux.
Recipe
Safely update a DNS record with verification and rollback
Read a record by RRID, apply a targeted change, verify the result, and restore the previous state if necessary.
Recipe
Maximize TLS lifetime with a re-issue cycle
Use a longer contract term efficiently by issuing certificates at the CA maximum validity, running follow-up issuances as re-issues, and starting the next contract period as an explicit renewal.
Recipe
Renew a TLS certificate explicitly
Create a new TLS order with `renewal_of_certificate_id` so the provider can explicitly treat it as a renewal of the existing certificate.
Community
Become part of the community
The Regfish DNS API is a great solution for developers who want to automate domains and DNS zones. Become part of the community and benefit from DNS automation. The DNS API is available free of charge to every Regfish customer.