Realtime Register MCP by usefulapi

io.usefulapiPublished by usefulapi.ioOfficial publisherv1.0.1Updated Nov 8, 2026

Check domains, read domains and DNS zones, and update DNS zone records in Realtime Register.

The publisher's own server: Ably MCP by usefulapi

VerifiedStreamable HTTPWeb executableCloud & Infrastructure Business & Commerce

Server details

Identifier: io.usefulapi/realtime-register
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Nov 8, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to usefulapi.io, which also runs its endpoint. That identifies the publisher; it does not make the server's tools safe.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

Hosted MCP server for Realtime Register: check domain availability and read or update domains, DNS zones, hosts and contacts in your account.

What you can do: Check whether a domain is available and see premium pricing
List and inspect domains, including registrant, contacts, name servers, status and expiry
List and read DNS zones, including records and SOA settings
List and read contacts and host objects (name servers with glue addresses)
Read account credit, TLD registry rules and asynchronous process status
Update a DNS zone's SOA settings, name servers or records
When to use it: Useful when you want an assistant to answer domain availability and pricing questions, audit which domains are expiring, review DNS records, or make targeted DNS zone changes without leaving the chat.
Requirements: Remote endpoint only, no local install; connect with the MCP URL and sign in via OAuth. On first connect you supply a Realtime Register API key (shown once on your profile page) and your customer handle, which the server stores per user. No keys go in client config.

Before you install

The server stores your Realtime Register API key and customer handle per user, so treat that login as account-level access. The update tool changes live DNS records, which propagate only after caches expire; read the zone first and confirm before writing. Domain orders are paid from the account's prepaid credit. The service is metered: free plan 50 calls a month, paid plans via Stripe checkout, and the meta tools can start or cancel a subscription.

Installation

In SourceWeft

Open Realtime Register MCP by usefulapi in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.usefulapi%2Frealtime-register/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "realtime-register-by-usefulapi": {
      "type": "http",
      "url": "https://realtime-register.usefulapi.io/mcp"
    }
  }
}

README

Realtime Register MCP by usefulapi

Use your Realtime Register account from Claude, Cursor, or any MCP client. Check domain availability, read domains and DNS zones, and update DNS zone records. Hosted, no local install: connect with your own credentials.

Live endpoint: https://realtime-register.usefulapi.io/mcp · Homepage: https://usefulapi.io

Connect

Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://realtime-register.usefulapi.io/mcp.
Claude Code: claude mcp add --transport http realtime-register https://realtime-register.usefulapi.io/mcp, then run /mcp to log in.
VS Code: Add to VS Code.
Cursor and other clients: add the URL as a remote MCP server:

json

{  "mcpServers": {    "realtime-register": {      "url": "https://realtime-register.usefulapi.io/mcp"    }  }}

{  "mcpServers": {    "realtime-register": {      "url": "https://realtime-register.usefulapi.io/mcp"    }  }}

Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your Realtime Register credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/realtime-register/

On first connect you provide a Realtime Register API key (created on your profile page; it is shown only once) and your customer handle (the account name in the API paths). The server validates it and stores it per user. No keys go in config files.

Tools

Tool	Type	What it does
`realtimeregister_check_domain`	read	Check a domain
`realtimeregister_list_domains`	read	List domains
`realtimeregister_get_domain`	read	Get a domain
`realtimeregister_get_domain_zone`	read	Get a domain's DNS zone
`realtimeregister_list_dns_zones`	read	List DNS zones
`realtimeregister_get_dns_zone`	read	Get a DNS zone
`realtimeregister_list_contacts`	read	List contacts
`realtimeregister_get_contact`	read	Get a contact
`realtimeregister_list_hosts`	read	List hosts
`realtimeregister_get_host`	read	Get a host
`realtimeregister_get_credit`	read	Get the account credit
`realtimeregister_get_process`	read	Get a process
`realtimeregister_get_tld_info`	read	Get TLD information
`realtimeregister_update_dns_zone`	write	Update a DNS zone
`realtimeregister_usage_status`	meta	Usage status (free-tier meter)
`realtimeregister_request_feature`	meta	Request a missing feature
`realtimeregister_upgrade`	meta	Upgrade to Pro or Pro+
`realtimeregister_cancel_subscription`	meta	Cancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to [email protected].

Pro covers this server only. Subscribe with realtimeregister_upgrade (it returns a Stripe Checkout link). Cancel any time with realtimeregister_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running realtimeregister_upgrade before then undoes the cancel. Or write to [email protected].

License

MIT — see LICENSE. Documentation only; the server is hosted.

Source: servers/realtime-register/README.md at commit eece7cf

Tools

realtimeregister_check_domain

Check a domain

Check whether a domain name is available to register, with its price if it is premium. Check one name per call and wait at least one second before the next call (vendor acceptable use policy). Realtime Register API: GET /domains/{domainName}/check.

ParametersdomainNamerequiredrenewPrice

realtimeregister_list_domains

List domains

List the domains in the customer account, with expiry dates, name servers and status. Use limit and offset to page through them. Realtime Register API: GET /domains/.

Parametersqlimitoffset

realtimeregister_get_domain

Get a domain

Get one domain in the customer account: registrant, contacts, name servers, status, expiry and auto-renew settings. Realtime Register API: GET /domains/{domainName}.

ParametersdomainNamerequired

realtimeregister_get_domain_zone

Get a domain's DNS zone

Get the DNS zone that belongs to a domain, with its records and SOA settings. Realtime Register API: GET /domains/{domainName}/zone.

ParametersdomainNamerequired

realtimeregister_list_dns_zones

List DNS zones

List the DNS zones in the customer account. Use limit and offset to page through them. Realtime Register API: GET /dns/zones/.

Parametersqlimitoffset

realtimeregister_get_dns_zone

Get a DNS zone

Get one DNS zone by id, with its records and SOA settings. Read the zone before any update. Realtime Register API: GET /dns/zones/{id}.

ParameterszoneIdrequired

realtimeregister_list_contacts

List contacts

List the contacts (registrant and admin records) of the customer account. Realtime Register API: GET /customers/{customer}/contacts/.

Parametersqlimitoffset

realtimeregister_get_contact

Get a contact

Get one contact by handle. Realtime Register API: GET /customers/{customer}/contacts/{handle}.

Parametershandlerequired

realtimeregister_list_hosts

List hosts

List the host objects (name servers with glue addresses) in the customer account. Realtime Register API: GET /hosts/.

Parametersqlimitoffset

realtimeregister_get_host

Get a host

Get one host object by its name, such as ns1.example.com. Realtime Register API: GET /hosts/{hostName}.

ParametershostNamerequired

realtimeregister_get_credit

Get the account credit

Get the prepaid credit balance of the customer account. Domain orders are paid from this balance. Realtime Register API: GET /customers/{customer}/credit.

Takes no parameters.

realtimeregister_get_process

Get a process

Get the status of an asynchronous process, such as a domain update or a DNS zone change. Use the id from a write call's response. Realtime Register API: GET /processes/{id}.

ParametersprocessIdrequired

realtimeregister_get_tld_info

Get TLD information

Get the registry metadata for a TLD, such as its rules and the fields it requires. Realtime Register API: GET /tlds/{tld}/info.

Parameterstldrequired

realtimeregister_update_dns_zone

Update a DNS zone

Change the SOA settings, name servers or records of a DNS zone. Read the zone first with realtimeregister_get_dns_zone and send only the fields you change. Changes reach the public internet after DNS caches expire. Send writes one at a time, at least one second apart (vendor acceptable use policy). Returns the process id to poll with realtimeregister_get_process. Realtime Register API: POST /dns/zones/{id}/update.

ParametersnsttlretryexpirezoneIdrequiredrecordsrefreshhostMaster

Version history

v1.0.1LatestNov 8, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
License10 pts

Business & Commerce15 toolsNov 8, 2026

Plan	Price	Limit
Free	$0	50 tool calls / month
Pro (per user)	$9/mo or $90/yr (2 months free)	Unlimited*