regfish logo
regfish integration

The regfish portfolio
dashboard you wish regfish had.

A real portfolio dashboard for regfish. Track expiry, group by project, sync daily by API or import by paste or CSV, and AI access through MCP.

No credit card. Free for personal portfolios.

German registrar and DNS provider offering domains, DNS hosting and TLS certificates from one dashboard. Lemon Domains puts every regfish domain into one searchable, sortable list, groups them by project, and tracks expiry properly. Add multiple regfish accounts with their own labels. Free for personal portfolios.

Website
regfish.de
How it connects
Daily sync by API key
Get an API key
regfish API settings
Lemon Domains IP addresses
2.31.94.66
API reference
regfish API docs
Setup guide

Connect regfish to Lemon Domains

Three steps: create a read-only API key at regfish, add it to Lemon Domains, and your domains sync once a day from then on. Connect as many regfish accounts as you have.

Step 1

Create a read-only API key at regfish

Give it the least access you can

A regfish API key with only the domain:read permission. It can list your domains and change nothing, not even DNS records.

  1. 1Sign in to the regfish dash and open Account → Security → API keys.
  2. 2Create a new key named “Lemon Domains” and give it only the domain:read permission.
  3. 3Copy the key. It is only shown once.

Open regfish API settings

Step 2

Add it to Lemon Domains

  1. 1Sign in to Lemon Domains (it's free), open Connections and choose regfish.
  2. 2Give the connection a friendly name, like “regfish personal” or “regfish clients”. Connect each regfish account separately.
  3. 3Paste your api key.
  4. 4Click Test connection. Lemon Domains checks the API key and shows how many domains it can see, without saving anything.
  5. 5Tick the checkbox to confirm you understand the risks, pick the project new domains go into, and click Connect and import. Your domains appear straight away and sync once a day after that.
Step 3

What Lemon Domains reads

Synced once a day
  • Domain names (including internationalised names)
  • Status, such as active, expired or pending transfer
  • Expiry and registration dates
  • Whether auto-renew is on
Read-only by design

Lemon Domains only ever sends read requests to regfish: each integration has a fixed list of read-only calls it may make, so it never renews, transfers or changes a domain. Your API key is encrypted at rest and never shown again.

If something goes wrong

regfish rejects the API key
Copy it again with no spaces at either end. Some registrars only show the secret once, so create a new key if you didn't save it.
The key has an IP restriction
Lemon Domains connects from 2.31.94.66. Add it to the API key's allowed IPs, or remove the restriction.
Some domains are missing
Make sure the API key belongs to the regfish account (or sub-account) that holds those domains. Connect each account separately.

Rather not use an API key? Import by paste or CSV

Copy your list from the regfish portal, paste it into Lemon Domains, and you're done. Re-import any time to refresh.

Open the regfish dash

  1. 1Open your regfish account at regfish.de and go to the domain list.
  2. 2If the list paginates, switch to "show all" or the largest page size so every regfish domain is visible.
  3. 3Copy the visible list, or export to CSV if regfish offers it from the account area.
  4. 4In Lemon Domains, click Import, paste the list or upload the CSV, and map the columns. Lemon Domains previews everything before it commits.
  5. 5Give the registrar account a friendly label (for example "regfish personal" or "regfish client work") so sub-accounts stay distinct.
Heads up
  • Paste or CSV import needs no regfish credentials at all.
  • regfish sub-accounts are supported. Add one Lemon Domains entry per regfish account with its own label.

How regfish fits into Lemon Domains

Pulled into one dashboard

Every regfish domain you own sits next to your domains from every other registrar. Same list, same search.

Expiry tracking, finally

Lemon Domains shows live expiry countdowns and filters by expiry window (under 30 days, 31-90 days, later) for every regfish domain so you stop missing renewals.

Daily sync by API

Connect regfish with an API key and Lemon Domains syncs your domains once a day. Hit Sync now whenever you want a fresh copy.

Why Lemon Domains beats the regfish dashboard

  • Every regfish domain in one sortable list, no pagination
  • Live expiry countdowns and 30 and 90 day expiry windows, not just a date column
  • Project folders for client work, brands, and experiments
  • Multiple regfish accounts with friendly labels, side by side
  • Daily sync by API, plus a Sync now button
  • Unified view with GoDaddy, Porkbun, Namecheap, and every other registrar
  • MCP server access so your AI assistant can answer regfish portfolio questions

Ask your AI assistant about your regfish domains

Connect the Lemon Domains MCP server to Claude Code, Cursor, or any MCP client that can send a Bearer header. "What regfish domains do I have expiring this month?" becomes a one-line question.

regfish + Lemon Domains FAQ

Does Lemon Domains support regfish domains?

Yes. Connect your regfish account with an API key and Lemon Domains syncs your domains automatically once a day. You can also import by pasting your domain list from the regfish dashboard or uploading a CSV export. Multiple regfish accounts are supported with friendly labels so sub-accounts stay distinct in the unified portfolio.

How is this different from the regfish dashboard?

regfish is an established registrar, but its built-in dashboard is account-scoped and not designed for portfolio thinking. Lemon Domains puts every regfish domain into one searchable, sortable list, adds live expiry countdowns, expiry window filters (under 30 days, 31-90 days, later), and project folders, and unifies regfish with every other registrar you use.

Do I need to share my regfish password?

No. Connecting by API uses an API key you create at regfish, not your password. A regfish API key with only the domain:read permission. It can list your domains and change nothing, not even DNS records. Keys are encrypted at rest, and Lemon Domains only ever sends read requests. Or skip the API and paste your list or upload a CSV.

Can I track multiple regfish accounts?

Yes. Add one connection per regfish account, each with its own friendly name. Personal and business logins, sub-accounts, and client accounts all sit side by side in one dashboard.

Does Lemon Domains renew my regfish domains?

No. Renewal still happens at regfish. Lemon Domains tracks expiry dates and auto-renew status so you know exactly when to act, but the renewal button stays at regfish.

Can AI assistants query my regfish domains?

Yes. The Lemon Domains MCP server lets Claude Code, Cursor, Windsurf, and any MCP client that can send a Bearer header query your full portfolio, including regfish domains, in plain English. Choose read-only or read-and-write access for each token.

Stop juggling regfish tabs.

Connect by API or import in under a minute. Free, forever for personal use.