Custom domains for AI agents and MCP
Agents connect domains over MCP or the API and report live. No MCP tool accepts DNS records.
For AI agent builders, platform engineers and founders. The docs give MCP setup for clients such as Claude Code, Codex and Cursor.
Where agents meet domains
Each job with its records, its fit and the docs page behind it.
Agents that connect domains
An agent finds where DNS lives, starts a connection, follows it to live and says why it is stuck. Placing a domain order through MCP is off on the hosted service.
Your agent connects for your customers
An AI product whose agent ships sites must get each customer's domain live safely. The agent uses the MCP tools or the API, and a person finishes the provider step through the link it returns.
Agent mailboxes on customer domains
Email-for-agents platforms let each customer's agents send and receive on the customer's domain. MX, DKIM, DMARC and an SPF merge ride one supplied record set. MX and SPF merges are written but not value-checked.
TXT _dmarc.acme.com v=DMARC1; p=none; rua=mailto:dmarc@example.comPartial fitDocs: Bring your own recordsA domain per agent
Products that give each agent its own domain. The domain connects through the same API and MCP tools. Placing a domain order through MCP is off on the hosted service.
Your MCP server on your domain
An API company publishes its MCP server at mcp.acme.com, and OAuth discovery has to answer on that host. On Growth and up the edge forwards every path to your origin, /.well-known included.
Where your customers' DNS is hosted
Six common providers and the way in each one offers.
| DNS provider | Way in today |
|---|---|
| Cloudflare | sign in |
| NameSilo | one-click |
| GoDaddy | api key |
| Amazon Route 53 | api key |
| Namecheap | by hand |
| Squarespace | by hand |
Common questions
Can an agent write DNS records directly?
No. No MCP tool accepts DNS records. The server computes them from vetted templates, and a person approves the provider step through the link the agent returns.
How does an agent get access to a workspace?
With an API key, a client-credentials token, or a token a person delegates with scopes they can revoke.
Which agents can use the MCP server?
Any MCP client that speaks streamable HTTP, at mcp.customdomain.ai/mcp. The docs give setup for Claude Code, Claude Desktop, Codex, Cursor, VS Code and ChatGPT.
Claude Code, Codex, Cursor, Claude Desktop and other names on this page are trademarks of their owners. CustomDomain™ is not affiliated with or endorsed by them. Facts about other products were read from their public pages on October 30, 2026.
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