SoldComps
Real-time eBay sold data via API, eliminating pricing guesswork for resellers.
Product memo
Targets resellers and developers who need actual eBay sold prices, bypassing the platform's restrictive API access. The wedge is a simple, unified API delivering up to 240 real sold listings per query, far beyond mere estimates or asking prices. This solves the core problem of pricing uncertainty for flippers and unlocks new data-driven applications for developers.
For who
Resellers, flippers, and developers needing eBay sold data
Solves what
Provides real-time, actual eBay sold prices via a clean API.
- Actual eBay sold prices
- REST API access
- Real-time transaction data
In their own words
eBay Sold Prices
One GET request returns up to 240 completed eBay sales — sold price, date, condition, shipping, seller. Real transactions, not estimates or asking prices.
Stop guessing what things sell for.
Commercial cues
Model
usage_based
Free tier
Yes
Trial
No
Free
Up to 6,000 results · 1 req / min rate limit
Starter
30 req / min rate limit · Your own API key · Usage dashboard
Growth
60 req / min rate limit · Up to 480,000 results
Scale
$0.008 / req overage · 120 req / min rate limit · Priority support
Custom
CustomCustom volume pricing · Dedicated support · SLA
Pricing Strategy
Offers usage-based API pricing, starting with a free tier and scaling through predictable request limits.
- • A generous free tier drives adoption by letting users test the data quality without commitment.
- • Tiered request quotas offer predictable costs, allowing users to scale usage without surprise bills.
- • Overage pricing incentivizes upgrading to higher tiers, capturing more revenue from power users.
Operator context
Founded
Mar 2025
HQ
Canada
Payments
Stripe
Tech stack
Builder Strategy
- Strategy Type
- Api First
- Stage
- Bootstrapped Lean
- Effort
- Solo Buildable
Targets resellers and developers with a niche API for accurate eBay sold data, bypassing eBay's API limitations.
Unfair Advantages
-
Proprietary Data Infrastructure to overcome eBay's sold listing API restrictions.
-
Unorthodox Pricing Pay-per-search model with tiered requests, not per-result.
Builder Lesson
Build a simple API wrapper around a restricted data source to offer a cleaner, more accessible product.
Full Reasoning
Wins by solving a specific, high-friction pain point: accessing accurate eBay sold data. The strategic move was building a clean, unified API that bypasses eBay's complex access, offering real-time results. The asymmetric bet here is the infrastructure required to consistently pull and normalize data despite eBay's limitations. Builders should look for niche data sources with high friction and then build a simple, developer-friendly interface to commoditize access.
About SoldComps Expand
SoldComps offers a powerful API designed to provide real-time, actual eBay sold prices. This tool is indispensable for resellers, flippers, and developers who need precise valuation data to inform their buying and selling strategies. By offering a clean, developer-friendly API, SoldComps bypasses the complexities and restrictions often associated with directly accessing eBay's data. It delivers up to 240 actual sold listings per query, providing a comprehensive view of market prices, unlike speculative estimates or asking prices.
The service stands out by focusing on ease of integration and data accuracy. For developers, this means building applications that leverage reliable pricing intelligence without the overhead of managing complex data feeds. For resellers, it means making smarter purchasing decisions and pricing inventory competitively. SoldComps's API-first approach ensures that users can quickly integrate real-time eBay sold data into their existing workflows or custom tools, making it a critical asset for anyone operating in the e-commerce resale market.