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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
Aug 5, 2026, 9:30 AM
OpenAPI updated
Aug 5, 2026, 9:29 AM
API reference
41
Models & types
88
Recipes
14
NewMCP
regfish MCP server: domains & DNS for AI agents
Connect Claude, ChatGPT and other agents directly to your domains: manage DNS records, control DNSSEC, switch nameservers and diagnose changes instantly, secured by role-based API keys (RBAC).
Open the MCP documentation
https://api.regfish.com/mcppowered by DNS Doctor
DNS Doctor API
The diagnostic engine behind the MCP checks, also directly as a REST API, with your regfish key.
Go to the DNS Doctor API →
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
Forma parte de la comunidad
La DNS API de Regfish es una gran solucion para desarrolladores que quieren automatizar dominios y zonas DNS. Sumate a la comunidad y aprovecha las ventajas de la automatizacion DNS. La DNS API esta disponible gratis para todos los clientes de Regfish.