
Underpriced.App
Terapeak
SoldFetch
SoldStack.dev
ZIK Analytics
Algopix
Flipshope
One API call, up to 240 real eBay sold prices. Real-time transaction data for resellers, flippers, and developers. Try the live demo free.
Mem0
Mem
Pieces for Developers
cognee
MemoryPlugin
Claude Memory
Mengram
Memory and continual learning for agents

Which is more popular?
Based on our record, Supermemory seems to be more popular. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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Supermemory
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|---|---|---|
| Website | sold-comps.com | supermemory.ai |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from Canada · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.

SoldComps is an eBay sold-listings API for resellers, flippers, and developers who need real completed-sale data for pricing. A single keyword search returns up to 240 sold listings straight from eBay's completed-sales results — the sold price recorded on each listing, plus shipping,...
Agents need memory. supermemory is building the default engine for memory and continual learning for agents, available through an API, plugins, and MCP. Memory that keeps learning. supermemory extracts and dreams on the context of every user, task, and tenant, stores it in a vector-graph...
What each product offers, as listed by its team.

No features have been listed yet.
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing SoldComps and Supermemory.
SoldComps's answer
SoldComps returns real eBay sold listings — completed sales, not active listings or estimates — from a single API call.
One keyword search returns up to 240 sold items, each as clean JSON with:
Most tools lock this data behind a dashboard or require an approved eBay developer account. SoldComps hands it back as a simple authenticated GET request you can integrate in minutes — across 8 eBay marketplaces.
SoldComps's answer
It's built API-first for people who want the data, not another dashboard to log into.
No eBay developer account, OAuth flow, or approval process — just an API key and a GET request that returns clean JSON. What you get:
Pricing is per search, not per result — a search that returns 10 items or 240 counts as one request — and there's a free tier with no credit card to start.
SoldComps's answer
SoldComps serves four main audiences:
SoldComps's answer
SoldComps started from a simple, recurring frustration: eBay is the best source of real sold-price data, but actually getting that data is painful.
eBay's own API heavily restricts access to sold listings and gates it behind an approval process, and pulling comps by hand is slow and doesn't scale.
So SoldComps collapses all of that into one clean API call — pass a keyword, get back up to 240 completed sales as structured JSON — so resellers and developers get the pricing data they need without wrestling eBay's API or scraping it themselves.
SoldComps's answer
SoldComps is built in TypeScript — a Hono API backed by PostgreSQL, with a React web app. Billing runs on Stripe.
SoldComps's answer
SoldComps is used across its core audiences rather than a few big-name accounts:
Share your experience with using SoldComps and Supermemory. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Tracking SoldComps since Jul 2026.
This is usually a challenge that any developer has to take care of when building an AI agent. In fact, managing the context is one of the hardest problems when working with AI agents and there are many companies like SuperMemory, Mem0... - Source: dev.to / 4 months ago
Memory. I use Supermemory for this. Before, Pipa loaded context files and knew to update them. A memory tool adds teammate-like recall: goals, preferences, latest business state, and small details that should carry across runs. Good... - Source: dev.to / 5 months ago
We wire everything up with Vision Agents as the voice agent framework, Stream for WebRTC audio and video, OpenAI Realtime for speech in and speech out, Anam so the agent shows up as a face on the video, and Supermemory so answers come... - Source: dev.to / 6 months ago
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