List of domain registrars · Integrations
Rainyun (雨云)
Rainyun (雨云) is a web host and domain registrar based in China. It connects to Lemon Domains by API.
| Lemon Domains | Connects by API, so your AI can read and manage these domains |
|---|
Rainyun (雨云) MCP
Lemon Domains is the unofficial Rainyun (雨云) MCP server. Connect your Rainyun (雨云) account by API once, and Claude, ChatGPT, Cursor or any MCP client can answer questions about your Rainyun (雨云) domains next to the domains you hold at every other registrar. Connections start read only, so your AI changes only what you allow.
- “Which of my Rainyun (雨云) domains expire in the next 60 days?”
- “Is auto-renew on for every domain at Rainyun (雨云)?”
- “Did the nameservers change on any of my Rainyun (雨云) domains this week?”
Connect Rainyun (雨云) · How the domain MCP server works · Track Rainyun (雨云) renewals
Lemon Domains is independent and not affiliated with Rainyun (雨云).
Rainyun (雨云) API
| Status | Integrated |
|---|---|
| API key | How to get a Rainyun (雨云) API key |
| Documentation | apifox.cn |
| Notes | Hosting brand that resells domains from an upstream Chinese registrar; account API key lists domains. |
About Rainyun (雨云)
| Headquarters | China |
|---|---|
| Type | Web host that registers domains |
| ICANN accreditation | Not ICANN-accredited |
| Site languages | Chinese |
Domain extensions Rainyun (雨云) sells
Confirmed on its site: .cn.
Rainyun in Lemon Domains
Connect Rainyun with an API key and every Rainyun domain joins your other registrars in one list, syncs once a day, and is there for your AI through MCP, the API and the CLI.
- How it connects
- Daily sync by API key
- Get an API key
- Rainyun API settings
- Lemon Domains IP addresses
- 2.31.94.66
- API reference
- Rainyun API docs
What you can do with Rainyun domains
In Lemon Domains
- Bring in your domains · Synced daily by API
- See expiry, auto-renew and lock status
On Rainyun's site
- Edit DNS records
- Change nameservers
- Turn the transfer lock on or off
- Turn auto-renew on or off
- Renew a domain
- Buy a new domain
- Get a transfer code
Connect Rainyun to Lemon Domains
Three steps: create a read-only API key at Rainyun, add it to Lemon Domains, and your domains sync once a day from then on. Connect as many Rainyun accounts as you have.
Create a read-only API key at Rainyun
Rainyun has one API key per account and it cannot be limited. Lemon Domains only ever sends it to the read-only domain list call.
- 1Sign in to the Rainyun console (app.rainyun.com) and open Account settings → API key (账户设置 → API 密钥).
- 2Generate a key if you have none, copy it and enter it in Lemon Domains.
Add it to Lemon Domains
- 1Sign in to Lemon Domains (it's free), open Connections and choose Rainyun.
- 2Give the connection a friendly name, like “Rainyun personal” or “Rainyun clients”. Connect each Rainyun account separately.
- 3Paste your api key.
- 4Click Test connection. Lemon Domains checks the API key and shows how many domains it can see, without saving anything.
- 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.
What Lemon Domains reads
- Domain names (including internationalised names)
- Status, such as active, expired or pending transfer
- Expiry and registration dates
Lemon Domains only ever sends read requests to Rainyun: 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
- Rainyun 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 Rainyun 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 Rainyun portal, paste it into Lemon Domains, and you're done. Re-import any time to refresh. Paste or CSV import needs no Rainyun credentials at all.
- 1Open your Rainyun account at rainyun.com and go to the domain list.
- 2If the list paginates, switch to "show all" or the largest page size so every Rainyun domain is visible.
- 3Copy the visible list, or export to CSV if Rainyun offers it from the account area.
- 4In Lemon Domains, click Import, paste the list or upload the CSV, and map the columns. Lemon Domains previews everything before it commits.
- 5Give the registrar account a friendly label (for example "Rainyun personal" or "Rainyun client work") so sub-accounts stay distinct.
Other registrars in China
| Blocked | |
| Integrated | |
| Blocked | |
| Has an API | |
| Blocked | |
| Has an API |
Sources: the ICANN list of accredited registrars and the IANA registrar ID registry (refreshed 2026-10-24), and Rainyun (雨云)'s own site and documentation (reviewed 2026-10-24). This page is also available as Markdown and JSON. Something out of date? Tell us.
Frequently asked questions
Does Lemon Domains support Rainyun domains?
Yes. Connect your Rainyun 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 Rainyun dashboard or uploading a CSV export. Multiple Rainyun accounts are supported with friendly labels so sub-accounts stay distinct in the unified portfolio.
How do I get a Rainyun API key?
Sign in to the Rainyun console (app.rainyun.com) and open Account settings → API key (账户设置 → API 密钥). Generate a key if you have none, copy it and enter it in Lemon Domains. Rainyun has one API key per account and it cannot be limited. Lemon Domains only ever sends it to the read-only domain list call.
Do I need to share my Rainyun password?
No. Connecting by API uses an API key you create at Rainyun, not your password. Rainyun has one API key per account and it cannot be limited. Lemon Domains only ever sends it to the read-only domain list call. Keys are encrypted at rest. Lemon Domains only ever sends read requests. Or skip the API and paste your list or upload a CSV.
Can I track multiple Rainyun accounts?
Yes. Add one connection per Rainyun 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 Rainyun domains?
No. Renewal still happens at Rainyun. Lemon Domains tracks expiry dates and auto-renew status so you know exactly when to act, but the renewal button stays at Rainyun.
Can AI assistants query my Rainyun domains?
Yes. The Lemon Domains MCP server lets ChatGPT, Claude, Cursor and any MCP client query your full portfolio, including Rainyun domains, in plain English. Choose read-only or read-and-write access for each token.
Is Rainyun (雨云) ICANN-accredited?
Rainyun (雨云) is not on the ICANN list of accredited registrars. It registers .cn domains through the country-code registry.
Is there an MCP server for Rainyun (雨云) domains?
Yes. Lemon Domains connects to Rainyun (雨云) by API and serves your Rainyun (雨云) domains through its remote MCP server, so Claude, ChatGPT, Cursor and any MCP client can answer questions about them. It is independent of Rainyun (雨云) and not affiliated with it, so the same connection also covers your domains at every other registrar.
Does Rainyun (雨云) have an API?
Yes. Lemon Domains connects to Rainyun (雨云) by API and syncs your domain list every day, with expiry dates and renewal settings. Your AI assistant can then answer questions about those domains through the Lemon Domains MCP server.