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Head-to-head · Domain Registration APIs

Ascio API vs ResellerClub API

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Ascio API #7 in Domain Registration APIs 8.6/10 Pricing on request ✓ 5 of 6 features Visit Ascio
ResellerClub API #8 in Domain Registration APIs 8.5/10 Free plan Free plan✓ 5 of 6 features Visit ResellerClub

Ascio API leads on 0 checks, ResellerClub API on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAscio API · 8.6/10
  • Free planonly ResellerClub API

Ascio API scores higher on our rubric for domain registration apis: 8.6 against 8.5 out of 10; our editors rank them #7 and #8.

Ascio API is the better fit for mature partners needing registry-specific automation. ResellerClub API is the better fit for resellers wanting free API testing and integrations.

  • Ascio API fits best

    Mature partners needing registry-specific automation

  • ResellerClub API fits best

    Resellers wanting free API testing and integrations

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Ascio API 8.6/10 Visit ↗ ResellerClub API 8.5/10 Visit ↗
At a glance
Editor score 8.6 8.5
Ranking #7 in Domain Registration APIs #8 in Domain Registration APIs
Best for Mature partners needing registry-specific automation Resellers wanting free API testing and integrations
Pricing model Paid Free plan + paid
Starting price Pricing on request Free plan
Free plan Not checked yet ✓ (best)
Free trial — —
Deployment Cloud Cloud
Platforms Web Web
Support Email, Live chat, Phone, Tickets, Docs Email, Live chat, Tickets, Docs · 24/7
Integrations 7 integrations 4 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Ascio API 5/6 · ResellerClub API 5/6
Domain search API ✓ ✓
Bulk registration Not checked yet Not checked yet
Transfer management ✓ ✓
Renewal management ✓ ✓
Premium domains ✓ ✓
Sandbox environment ✓ ✓
Our review
Pros
  • Covers availability, registration, transfers, renewals, and premium domains
  • TLD Kit addresses registry-specific requirements across multiple TLDs
  • Includes DNS, portfolio tools, asynchronous processing, and partner integrations
  • Covers search, registration, renewal, transfer, DNS, and forwarding workflows
  • Includes a separate sandbox for testing credentials and provisioning workflows
  • Integrates with WHMCS, Blesta, AWBS, and HostBill
Cons
  • Pricing requires a conversation with sales
  • SOAP-based interfaces may require specialized implementation work
  • Asynchronous orders require message handling and polling workflows
  • Legacy HTTP API documentation may add complexity for new implementations
  • Retailers must manage TLD-dependent domain operations and pricing
  • Bulk API registration is not part of the documented feature set
Our verdict

Ascio API is a domain registration and management service from Ascio Technologies, designed for domain resellers and partners operating across multiple top-level domains. Its SOAP-based interfaces cover availability checks, registration…

Read the review →

ResellerClub API provides domain-reselling infrastructure for web hosts, developers, agencies, and website-builder platforms. Its REST API supports availability searches, registrations, renewals, transfers, customer and contact records,…

Read the review →
  1. Ascio APIDomain Registration APIs 8.6Pricing on request
  2. ResellerClub APIDomain Registration APIs 8.5Free plan

Strengths and trade-offs

  • Ascio API — where it wins

    • Covers availability, registration, transfers, renewals, and premium domains
    • TLD Kit addresses registry-specific requirements across multiple TLDs
    • Includes DNS, portfolio tools, asynchronous processing, and partner integrations

    Where it doesn't

    • Pricing requires a conversation with sales
    • SOAP-based interfaces may require specialized implementation work
    • Asynchronous orders require message handling and polling workflows

  • ResellerClub API — where it wins

    • Covers search, registration, renewal, transfer, DNS, and forwarding workflows
    • Includes a separate sandbox for testing credentials and provisioning workflows
    • Integrates with WHMCS, Blesta, AWBS, and HostBill

    Where it doesn't

    • Legacy HTTP API documentation may add complexity for new implementations
    • Retailers must manage TLD-dependent domain operations and pricing
    • Bulk API registration is not part of the documented feature set
  • Ascio API8.6/10 · Pricing on request

    A mature domain automation layer for partners working across multiple TLDs.

    Visit AscioFull verdict →
  • ResellerClub API8.5/10 · Free plan

    A domain-reselling API with sandbox access, lifecycle coverage, and four reseller integrations.

    Visit ResellerClubFull verdict →

More comparisons

All domain registration APIs comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update