CatchDoms Expired Domains API

About CatchDoms Expired Domains API

CatchDoms is a REST API that aggregates expired, deleted, and pending-delete domain data for use in automation and AI-agent workflows. It combines live auction and marketplace listings from 22 platforms, including GoDaddy, DropCatch, Dynadot, Catched, Gname, and SnapNames, with an exclusive database of over 100,000 deleted ccTLD domains available for registration at standard price across more than 60 TLDs, and a weekly pending-delete inventory covering domains in pendingDelete, redemptionPeriod, serverHold, clientHold, transition, or quarantine status across more than 185 TLDs with predicted drop dates. Listings can be enriched with SEO metrics such as Majestic Trust Flow and Citation Flow, Moz Domain Authority, backlink and referring-domain counts, Wayback Machine history, and content-language detection. The API returns JSON over standard REST with Bearer token authentication, and offers filter parameters including source, TLD, score thresholds, age, bid status, backlink presence, and Majestic TTF category.

The product targets domainers monitoring auctions across multiple platforms, SEO practitioners searching for expired domains to redirect or rebuild, netlinking and PBN operators sourcing aged ccTLD domains by TLD and trust-flow threshold, and developers building bots, browser extensions, or internal tools. It also provides an MCP server for use with Claude, Cursor, and GPT-based function calling, allowing natural-language domain queries to be translated into API calls.

Access is tiered: Pro plans (from 39€/month) unlock the live auction, closeout, and marketplace data with a 15 requests/minute rate limit; the deleted-ccTLD dataset requires an Authority plan; and the pending-delete inventory endpoint requires an Authority+ subscription. A free, no-signup endpoint allows testing with a limited response (first 10 results, core fields only), while premium metrics and the full catalogue require an API key.

Key features

• Aggregates live domain auctions and closeouts from 22 registrar and marketplace platforms daily
• Exclusive database of 100,000+ deleted/dropped ccTLD domains available at standard registration price across 60+ TLDs
• REST API with JSON responses and Bearer token auth, plus an MCP server for Claude, Cursor and GPT integrations
• 20+ filter parameters including source, tld, score_min, tf_min, cf_min, da_min, has_backlinks, and categories

Frequently asked questions