Expired domains API for AI agents and automation
Live auctions from 21 registrars. 100,000+ deleted ccTLD domains you can register at standard price. Weekly pending-delete inventory across 125+ TLDs. SEO metrics (TF, CF, DA, backlinks, Wayback) on prioritized domains. One REST API. JSON responses ready for Claude, Cursor, n8n, Zapier or your own dashboard.
Data from
Live auctions, closeouts & marketplaces
21 platforms aggregated daily. Auctions from GoDaddy / DropCatch / Catched / Gname / SnapNames, closeouts from Dynadot, buy-now marketplaces from SEO.Domains / NameShift / Gnews Domains / Rakko, and more.
-
21 platforms in one API — GoDaddy, DropCatch, Dynadot, Catched, Gname, SnapNames, UK Backorder, Subreg, WebExpire, Park.io, BloomUp, SEO.Domains, NameShift, Nicsell, Gnews Domains, Backorders Domains, DomainLore, Rakko, NamePros. Filter with
source=(e.g.source=rakkodomain). - ~30k–40k new listings per day across auctions, closeouts, buy-now and backorder. Auction bids refresh multiple times per day; full feeds are fetched every morning.
-
SEO enrichment (Majestic TF/CF, Moz DA, backlinks, Wayback, language) on prioritized domains. Filter with
has_backlinks=1ortf_min=10to restrict to enriched rows.
Deleted, dropped & aged ccTLD domains
An exclusive CatchDoms database of domains that expired, went back to the registry, and are now available for standard registration — no auction, no bidding war. Sourced and curated by our team, refreshed monthly, with new TLDs added regularly.
- Exclusive list of 100,000+ deleted ccTLD domains sourced and maintained by CatchDoms across 60+ TLDs (.fr, .de, .co.uk, .it, .nl, .es, .ca, .com.au, .jp, .com.br, .id, .kz, .ie, .ae…). You will not find this database anywhere else. New TLDs are added regularly as we expand coverage.
- Register at standard price (~€10–€15), not an auction bid. Availability verified against name.com before the domain is exposed through the API.
- Same SEO metrics as live auctions: Majestic Trust Flow & Citation Flow, Moz Domain Authority, backlinks, referring domains, Wayback history, content-language detection.
source=regfree without Authority returns a 403 with a clear error message.
Weekly pending-delete inventory
Track domains entering pendingDelete, redemptionPeriod, serverHold, clientHold, transition or quarantine status — with predicted drop dates 5 to 45 days out. Across 185+ TLDs (.com, .net, .de, .fr, .uk, .nl, .it, .es, .ai, .ch ...).
1,963,553+ rows this week Browse the inventory →- 185+ TLDs covered (ccTLDs + gTLDs : .com, .net, .org, .biz + niche ccTLDs)
- Classified status : pendingDelete, redemptionPeriod, serverHold, clientHold, transition, quarantine — each with predicted drop date
-
Weekly fresh batch via the API :
GET /api/pending-deletewith status / TLD / drop date filters
/api/pending-delete via the API or browse /pending-delete-domains.
How CatchDoms compares
What you get on the deleted-domains / expired-domains use case, side by side.
| Feature | CatchDoms | WhoisFreaks | WhoisXML API |
|---|---|---|---|
| Live auctions (bids, end dates, prices) | Yes — :count platforms | No | No |
| Deleted / dropped domains at reg price | Yes — 100k+ across 60+ ccTLDs | Yes — .com-centric | Partial — just-expired only |
| Majestic TF/CF (prioritized) | Yes — native | No | No |
| Moz DA + backlinks (prioritized) | Yes — native | Add-on product | No |
| Wayback history (age, snapshots) | Yes | No | No |
| Content-language detection | Yes | No | No |
| MCP server (Claude, Cursor, GPT) | Yes | No | No |
| Transparent pricing on site | Yes — 39€ Pro, 79€/mo Authority (annual) | Behind signup | Behind signup |
Use cases
Domainers use the API to monitor auctions across all platforms from one place. No more checking Dynadot, then GoDaddy, then DropCatch every morning.
SEO folks filter by DA, TF/CF and backlinks to find expired domains worth 301-ing or rebuilding. The deleted-ccTLD pool is unmatched for aged local-SEO redirects.
Netlinking & PBN operators pull deleted ccTLD domains by TLD and TF threshold, score them, then register in bulk via their registrar of choice — no auction required.
Developers build Slack bots, browser extensions, or internal tools. Standard REST, JSON responses, works with any language.
AI integrations — hook this up to Claude via MCP or GPT via function calling. Ask "find .fr domains older than 10 years with backlinks" and let the LLM build the query.
Ready to build? Here is the API.
Standard REST, JSON responses, Bearer token auth. Works with any language. Full reference below.
Test it yourself
Run a real request against the free endpoint right now, straight from your browser. No signup, no token.
curl ""Live response
| Domain | Source | Score | DA | Ref. domains | Price |
|---|---|---|---|---|---|
First 10 names are shown in full; premium metrics (Trust Flow, Citation Flow, TTF topic, GMB) and the full catalogue need an API key.
Try it
Copy this curl command. Replace YOUR_API_KEY.
curl "https://catchdoms.com/api/domains?score_min=50&has_backlinks=1&per_page=10" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Accept: application/json"Response
{
"data": [
{
"id": 12345,
"name": "example.com",
"tld": ".com",
"source": "godaddy",
"type": "auction",
"price": 12.00,
"max_bid": 125.00,
"effective_price": 125.00,
"bids_count": 8,
"auction_end_date": "2026-01-25T18:00:00Z",
"score": 72,
"age": 15,
"pagerank": 4,
"domain_authority": 28,
"backlinks_count": 1420,
"referring_domains": 89,
"wayback_snapshots": 156,
"wayback_first_date": "2011-03-14",
"language": "EN",
"purchase_url": "https://auctions.godaddy.com/..."
}
],
"links": { ... },
"meta": { "current_page": 1, "total": 3420 }
}Filter by source=regfree to get deleted ccTLDs only
curl "https://catchdoms.com/api/domains?source=regfree&tld=.fr&tf_min=15&per_page=10" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Accept: application/json"Filter parameters
Add these to your query string
source
dynadot, godaddy, catched, dropcatch, gname, snapnames, ukdroplists, subreg, webexpire, parkio, bloomup, seodomains, nameshift, nicsell, gnews-domains, backorders-domains, regfree
tld
.com, .net, .org, .fr, .de, .co.uk, .it, .nl, .es, .ca, etc.
score_min
Quality score 0-100. Try 50+ for good domains.
age_min
Years since first Wayback snapshot
type
auction or closeout
has_bids
1 = only domains with active bids
has_backlinks
1 = only domains with referring domains
has_gmb
1 = only domains with an active Google Business Profile
has_edu_gov
1 = only domains with EDU or GOV referring domains
tf_min
Majestic Trust Flow 0-100
cf_min
Majestic Citation Flow 0-100
da_min
Moz Domain Authority 0-100
rd_min
Minimum referring domains count
categories
Majestic TTF categories: Business, Health, Computers, Shopping, Recreation, Society, Sports, News, Science, Arts, Reference, Regional, Games, Home, World, Adult (comma-separated for multiple)
contains
Substring filter on the domain name (e.g. "shop", "travel")
language
EN, FR, DE, ES... detected from Wayback content
price_min
Minimum price or current bid, in EUR
price_max
Maximum price or current bid, in EUR
snapshots_min
Minimum Wayback snapshot count
per_page
1-100 domains per response
page
Pagination page number (default 1)
API access — Pro or Authority
Pro (39€/mo) unlocks all live auctions and marketplace listings. Authority (89€/mo, or 79€/mo billed annually) adds the deleted-ccTLD database and a quarterly strategy call.
Questions
What is the difference between expired, deleted and dropped domains?
Expired domains are domains whose owner did not renew: they go through a grace period, then a redemption period, then a pending-delete period. Dropped or deleted domains have reached the end of that cycle — the registry has released them, so they are available to register again at standard price with no auction. CatchDoms exposes both tracks: live auctions under any platform source slug, and the deleted-domains pool under source=regfree.
How do I access deleted domains through the API?
Use source=regfree in your query. The endpoint is the same as for live auctions, only the source filter changes. Authority plan subscribers get unlimited access; Pro users receive a 403 with a clear "Authority required" message.
How often is the deleted-domains database refreshed?
Monthly.
How fresh is the data?
Auction bids update a few times per day. New listings are fetched from each registrar every morning. GoDaddy data has a ~2 hour delay because their feed updates once daily. The deleted-ccTLD database is refreshed monthly.
What happens if I hit the rate limit?
You get a 429 response. Wait 60 seconds and try again. Pro is capped at 15 requests per minute; Authority gets 60 requests per minute (4x) — intended for batch ccTLD scans on the deleted-domains database. If you need more, contact us for a custom Business plan.
Can I use this with Claude?
Yes. There is a built-in MCP server at /mcp/catchdoms. See the MCP section below for setup instructions.
How do I authenticate?
Add Authorization: Bearer YOUR_API_KEY header. Get your key from the API dashboard.
How does CatchDoms compare to WhoisFreaks, ExpiredDomains or DomCop?
Unlike ExpiredDomains.net or DomCop which are web tools with limited or no API, and unlike WhoisFreaks or WhoisXML API which cover WHOIS and expired-domain lists but skip SEO metrics, CatchDoms gives you live auctions from 21 platforms, 100,000+ deleted ccTLD domains at reg price, and SEO enrichment (Majestic TF/CF, Moz DA, backlinks, Wayback, language detection, quality scoring) on prioritized domains — in a single REST API plus an MCP server for AI assistants. Enrichment focuses on domains with bids, Wayback history, priority ccTLDs and higher valuations; you can filter to "has_backlinks=1" or "tf_min=10" to restrict queries to enriched rows.
All 21 platforms, aggregated daily. Filter by source= on the API.
jQuery
54,492
Open Graph
43,470
PHP
40,363
MySQL
37,045
WordPress
35,917
jQuery Migrate
29,941
Priority Hints
16,413
Bootstrap
16,233
Google Analytics
13,813
Contact Form 7
11,408
Yoast SEO
11,254
Cart Functionality
10,705
Elementor
9,505
Swiper
7,665
All domains are instantly registerable at standard price via the API with Authority plan.
See Authority plan