Comparison
CodeTrain vs Selvedge
A factual side by side of two tools in Auth & Payments. Figures come from each product’s own site.
CodeTrain
ListedCodeTrain is a Socratic AI coding tutor: it asks questions, reviews what you write, and runs your tests, but never writes the code for you. Free to start.
Selvedge
ListedA local MCP server that AI coding agents (Claude Code, Cursor, Copilot) call as they work, logging the why behind every change into a SQLite file under .selvedge/ next to...
| CodeTrain | Selvedge | |
|---|---|---|
| Category | Auth & Payments | Auth & Payments |
| Pricing model | Open Source | Open Source |
| Starting price | Not disclosed | Not disclosed |
| Free tier | Yes | No |
| Platforms | Not disclosed | Not disclosed |
| Techavy score | Not rated yet | Not rated yet |
About CodeTrain
CodeTrain is a Socratic AI coding tutor: it asks questions, reviews what you write, and runs your tests, but never writes the code for you. Free to start. Two steps, about a minute, and the first one is going to catch you. The tutor's replies are pre-recorded, so it knows the handful of ways this lesson usually goes wrong. The real one reads whatever you actually wrote, and it is free for ten lessons a month.
About Selvedge
A local MCP server that AI coding agents (Claude Code, Cursor, Copilot) call as they work, logging the why behind every change into a SQLite file under .selvedge/ next to your code. Selvedge is a git blame for the why, a local MCP server your agent (Claude Code, Cursor, Copilot) calls as it works, recording the intent behind each change in the moment it makes it, not reconstructing it from the diff afterward.
Neither placement on this page is paid. Outbound links are nofollow. How we rate tools