Self-host NorthCinder
v0.2.1Local MCP shopping agent that asks before it buys
- Stars
- 1 205
What is NorthCinder?
NorthCinder is an open-source MCP server that lets your own AI assistant shop on your behalf while all of it runs on hardware you control. It queries the store connections you enable, orders offers with a published deterministic weighting, and normally surfaces three finalists at most: the best match, a safer pick, and a cheaper or genuinely different alternative. Every result explains its placement, and the rejected offers plus unverifiable facts stay visible. Merchant trust comes from documented rules about platform hosting, domain age and traffic rank, paid placement is labeled and demoted, and a store that could not be reached is reported as a gap. Nothing gets bought without a person agreeing first: each order needs a fresh single-use signed approval covering the seller, the exact variant, the price and a spending ceiling, and raw card numbers are refused. Setup is local — the initializer writes buyer-owned configuration and starts the MCP server together with the search engine in one process on an ephemeral loopback port, with a local trail of every suggestion and purchase decision. Advanced users may instead run the engine as its own authenticated service over HTTPS using bearer keys. Native adapters exist for Shopify, WooCommerce, eBay, Etsy and read-only Amazon comparison; where one is missing, your agent can feed in normalized browser observations. The project is pre-1.0 and candid about limits — adapter tests rely on fixtures rather than live accounts, and it says no host and model pairing is qualified for routine research use.
Should you self-host NorthCinder?
NorthCinder scores 33/100 on selfhost.directory (how scoring works) and ranks #196 of 209 in AI Agents. It has 1 205 GitHub stars.
It shipped 3 stable releases in the past year. The latest, v0.2.1, came out on 22 August 2026. New versions land roughly every 3 days.
Setup is moderate: expect some configuration beyond a single command. It is MIT-licensed and written mostly in JavaScript.
Its closest alternative on selfhost.directory is Orca (91/100, 108 815 stars). It scores higher overall, so compare the two before you pick. See NorthCinder vs Orca side by side.
Features
- Browser observation handoff
- Cardless checkout handoff
- Client-side ranking verification
- Deterministic ranking with reasons
- Human-in-the-loop purchase approval
- Local audit log
- Local-first execution
- MCP Server Integration
- Merchant trust levels
- Price watch alerts
- Product and seller research plans
- Product comparison search
- Separate self-hosted engine
- Sponsored offer labelling
NorthCinder README
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