Developer Hub | regfish DNS & TLS API

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New · MCP SuiteYour AI agent gets your DNS zone, not your invoice.

Claude, Codex and others read and change records with the permissions you grant one by one. Nothing that costs money, and the transfer code only if you release it.

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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

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 documentationhttps://api.regfish.com/mcp

powered by DNS Doctor

The diagnostic engine behind the MCP checks, also directly as a REST API, with your regfish key.

Go to the DNS Doctor API →

Read, create, update, and delete DNS records.

TLS certificates

Order, manage, revoke, and download TLS certificates.

Recipes

View all recipes

Workflow recipes

Step-by-step recipes connect multiple endpoints into a practical workflow and show how the API is used in production-style automation.

TLS automation with regfish certbro

Install regfish certbro, configure API access, issue a certificate with automated DNS DCV, and enable unattended renewals on Linux.

about 10 minutesTLSCertbro

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.

about 8 minutesDNSRollback

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.

about 15 minutesTLSRe-Issue

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.

about 12 minutesTLSRenewal

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.

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