# domains.aktagon.com

> Domain tools for AI agents. Check available domains, run RDAP, IP, and ASN queries. REST API with MCP tools.

## Endpoints

- [OpenAPI spec](https://domains.aktagon.com/.well-known/openapi.json): REST API schema
- [MCP tools](https://domains.aktagon.com/mcp): Model Context Protocol tools

## Tools

- check_domain: Check if a domain is available. Returns RDAP data for registered domains.
- check_ip: Network and registry info for an IP address
- check_asn: Autonomous system number lookup
- bulk_check: Up to 50 domain lookups in one request
- list_tlds: 1200+ TLDs with RDAP server URLs
- get_usage: Per-key daily request counts

## Auth

Free: 100 requests/month, 1 req/min, no key required.
Paid: $9/mo base (includes 100k requests), $12 per additional million, 300 req/min, Bearer token in Authorization header.

## Errors

Typed error codes: invalid_domain, tld_not_supported, upstream_timeout, upstream_error, upstream_rate_limited, rate_limited, unauthorized, invalid_ip, ip_not_covered, invalid_asn, asn_not_covered, invalid_date_range, internal_error.