Developer Platform
101domain API & MCP Server
Manage domains and DNS programmatically — across hundreds or thousands of names, registrars, and TLDs. Built for corporate portfolio teams, and just as fast for developers, resellers, and other technical or AI-powered users.
Domain portfolio teams managing global brands rarely have a "few domains in a dashboard" problem. They have hundreds or thousands of names spread across registrars, regions, and extensions — and a portal-only workflow that can't keep pace with how the rest of their infrastructure is managed. The practical need is programmatic control: search, DNS, and portfolio data available to scripts, internal tools, and increasingly, AI agents.
The 101domain API exposes the registrar as a clean REST interface. The 101domain MCP Server exposes the same capabilities to AI agents through natural language. Both sit on top of the same managed-registrar service and team of domain experts — so automation never means giving up the white-glove support and compliance handling corporate teams rely on.
What you can do with the 101domain API
The API is organized around the operations domain teams actually perform:
Search & availability
Check single or bulk domain availability and pricing across thousands of TLDs — up to 50 names per request.
View the API documentation →DNS management
Read, create, edit, and delete DNS records, and manage nameservers, with full write access on supported domains.
View the API documentation →Account & portfolio data
Pull account balance, domain lists, and portfolio metadata to feed dashboards, audits, and reporting. Invoices, orders, and transaction history are coming soon.
View the API documentation →Orders, Invoices, & Transactions
Get order history, invoice details, and full transaction logs to help automate your accounting reconciliations and ERP workflows.
View the API documentation →Built for corporate domain portfolios
Most registrars give you a portal and a phone number. Few give you a modern API backed by managed service. That combination is the point: you get programmatic control and a team of domain experts that handles registry complexity, ccTLD requirements, and compliance on your behalf.
- Scoped API keys. Grant only the access a given integration needs — read-only data or DNS writes — and nothing more.
- Portfolio-scale operations. Bulk endpoints and paginated, filterable domain lists are designed for portfolios in the hundreds or thousands.
- Deep ccTLD and global coverage. The API reaches the same broad TLD catalog 101domain is known for — including extensions most registrars don't support.
- Managed service behind the API. Programmatic access doesn't replace your account team and domain experts; it sits alongside them.
Also a fast win for developers, resellers, and AI-powered teams
You don't need a large portfolio to get value here. Generating a key is self-serve, the API is straightforward REST with JSON responses, and bulk endpoints make it efficient for resellers, developers, and other technical or AI-powered users building on top of the platform.
- Self-serve key generation with scope selection at creation.
- Clean REST + JSON with predictable status codes and error responses.
- Bulk search and lookup for high-volume, reseller, and automated workflows.
The MCP Server: domain management for AI agents
The Model Context Protocol (MCP) lets AI agents call real tools. The 101domain MCP Server exposes the same capabilities as the API — search, DNS, account data, and more — so an agent can act on your portfolio through natural language, with scoped permissions and guardrails for safe use.
Explore the 101domain MCP Server →Getting started
- Sign in and open Developer Settings to generate an API key.
- Select the scopes your integration needs at creation — for example,
dns_readto read DNS anddns_writeto make DNS changes. Scopes are set at creation and can't be added later, so include everything you'll need up front. See API Key Scopes and Permissions. - Reference the API documentation for endpoints, parameters, and examples.
Bring your domain portfolio under programmatic control
Talk to our team about an integration for your portfolio, or generate a key and start building today.