Mercari
eBay
Poshmark
Etsy
1stdibs
Chairish
StockX
Amazon
ContextForge.dev
Agentmemory
OpenMemory MCP
ContextForge is persistent, searchable memory for AI coding agents โ built on the Model Context Protocol (MCP).
Your AI assistant forgets everything when the session ends. ContextForge fixes that: save architectural decisions, naming conventions, and debugging context once, and any MCP client recalls it later with semantic search โ across sessions and across projects.
Works with: Claude Code, Claude Desktop, Cursor, GitHub Copilot, ChatGPT, and Windsurf.
Mercari ContextForge.devContextForge.dev's answer:
ContextForge is memory that lives at the MCP layer, so it works across every AI coding agent at once โ Claude Code, Cursor, GitHub Copilot, ChatGPT, and Windsurf โ not just one. Save a decision once and any client recalls it later with semantic search. It goes beyond a note store: automatic git sync turns your commits and PRs into searchable knowledge, plus task tracking, snapshots, and team sharing โ all through a single MCP server you add with one command.
ContextForge.dev's answer:
Most memory tools are tied to a single agent or are just a key-value store. ContextForge is MCP-native, so it's portable across all your AI tools; it adds git sync so your codebase history becomes searchable context automatically; and it includes team features (shared spaces, collaborators) that solo-memory tools lack. Setup is one command, there's a genuine free-forever tier with no credit card, and paid plans start at just $9/month.
ContextForge.dev's answer:
Software developers and engineering teams who use AI coding assistants โ Claude Code, Cursor, GitHub Copilot, ChatGPT, Windsurf โ and are tired of re-explaining their project, architecture, and conventions every session. It fits solo developers working across multiple projects as well as small teams that need shared, persistent context.
ContextForge.dev's answer:
ContextForge was born from a simple frustration: AI coding agents forget everything the moment a session ends. Every new conversation meant re-explaining the same architecture, naming conventions, and past decisions. ContextForge was built to give AI agents a permanent, searchable memory through the Model Context Protocol โ so knowledge is captured once and reused forever, across sessions and projects. It even dogfoods its own memory to help build itself.
ContextForge.dev's answer:
Next.js 16 (App Router), React and Tailwind CSS for the dashboard, hosted on Vercel. Supabase (PostgreSQL) with pgvector powers the semantic vector search, and Deno edge functions serve the API. Embeddings use OpenAI text-embedding-3-small. The MCP client is a Node.js package (contextforge-mcp) on npm, implementing the Model Context Protocol.
Based on our record, Mercari seems to be more popular. It has been mentiond 19 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Second-hand sites like poshmark.com, vinted.com, mercari.com, ebay.com, bratabase.com/listings, r/braswap, I even bought a NWT Panache Wired Sports bra for $20 off Facebook marketplace! LOL. Obvi, you can still find NWT from second-hand sites). Source: about 3 years ago
The final sale stuff on Breakout Bras website is best prices I've found for the U.S. (outside of second-hand sites like poshmark.com, ebay.com vinted.com, mercari.com, the usual suspects. You can still find NWT stuff on these sites. I even found a Panache Wired Sports Bra NWT for $20 on Facebook marketplace! LOL.). Source: about 3 years ago
I have also bought a lot of yarn on Mercari Lots of hand dyed yarn, name brands from individuals de-stash, estates. Source: over 3 years ago
You can always check mercari.com as well. Source: almost 4 years ago
Mercari.jp is the second most popular. Don't get this confused with mercari.com, because while it is the same company, the listings aren't transferable. Mercari is basically like facebook marketplace, first come first serve. They also hate proxy services, so its harder for people not in japan to buy from them. I'll explain more in the proxy section. Source: almost 4 years ago
eBay - Buy and sell electronics, cars, fashion apparel, collectibles, sporting goods, digital cameras, baby items, coupons, and everything else on eBay, the world's online marketplace
Agentmemory - Persistent memory for Claude Code, Codex & coding agents
Poshmark - Poshmark is the #1 place to buy and sell fashion. Shop millions of closetsโand sell yours too!
OpenMemory MCP - Your private, local memory layer for all AI tools
Etsy - Buy and sell handmade or vintage items, art and supplies on Etsy, the worlds most vibrant handmade...
1stdibs - Antique and Modern Furniture, Jewelry, Fashion & Art
