Rapp Domains is answering right now. Last checked 8 min ago. It exposes 3 tools. Last commit 6 Oct 2026.
Check and price up to 20 domain names at once; agents can register them, paying per request.
Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.
claude mcp add rapp-domains --transport http https://rapp-agent-builder.azurewebsites.net/domains/mcp
{
"mcpServers": {
"rapp-domains": {
"url": "https://rapp-agent-builder.azurewebsites.net/domains/mcp"
}
}
}
[mcp_servers.rapp-domains]
url = "https://rapp-agent-builder.azurewebsites.net/domains/mcp"
{
"mcpServers": {
"rapp-domains": {
"url": "https://rapp-agent-builder.azurewebsites.net/domains/mcp"
}
}
}
{
"mcpServers": {
"rapp-domains": {
"url": "https://rapp-agent-builder.azurewebsites.net/domains/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
check_domain
register_domain
request_service
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://rapp-agent-builder.azurewebsites.net/domains/mcp | streamable-http | answering | 685 ms | 8 min ago |
Check and price up to 20 domain names at once; agents can register them, paying per request.
Find and check .si domain names that are free to register, from an index of 600,000+ names.
Domain research for AI agents: checks hundreds of names in one call, with prices and where to buy.
Service that lets AI Agents search, register, and configure domains
Proof of existence, names and chain data of the Doichain blockchain for AI agents
Domain Age PRO: Check the domain age using fastest api response. On the JoJ API marketplace.
Register a SaaS app's customer hostnames, show their DNS records and checks, recheck or delete them.
Check whether the domain for a startup, product or business name is already registered.
Answers built from our own checks of this server.