Quick answer
Supermemory and Hjarni both offer official hosted MCP access to persistent knowledge. Supermemory combines semantic memory, profiles, document retrieval, shared spaces, and a developer API. Hjarni centers on Markdown notes people and assistants edit together, with folder guidance and note history. Compare the content format, permissions, retrieval behavior, and usage model that fit your work.
Details behind the comparison
- Primary shape
- Both serve people using AI as well as developer workflows.
- MCP server
- Supermemory connects remotely without a local server and lets you choose accessible spaces during sign-in.
- Read and save
- Supermemory documents source-document browsing and interactive save/upload widgets, as well as semantic memory search.
- Human editing
- Supermemory supports editable drafts before saving and document content updates through its SDK. It is not solely background capture.
- Team knowledge
- Both support shared context. Check the plan and access-control workflow needed for your team.
- Retrieval
- These are different retrieval designs. Neither guarantees the assistant will retrieve the right material for every question.
- Portability
- Hjarni supplies a Markdown ZIP. Supermemory exposes source content through document APIs; compare the export workflow you need.
- Instructions
- Hjarni guidance helps assistants use a folder; it does not enforce permissions or guarantee recall.
- Email capture
- Choose selective forwarding or an authorized mailbox connector according to your workflow.
- Pricing
- Supermemory includes $5 monthly credits on Free. Paid plans include credits; ingestion, queries, and operations consume them.
- Deployment
- Do not infer the storage region from the company headquarters. Confirm deployment requirements with the provider.
- History
- Supermemory exposes versioned memory entries. Check the exact history and restore workflow rather than assuming it has none.
Both connect remotely
Supermemory's official MCP server uses OAuth and supports shared spaces. Its tools search memories, list and read source documents, save information, and forget outdated material. Hjarni's official server likewise runs remotely, exposing the same notes you maintain in the app.
Capture and authorship overlap
Supermemory accepts deliberate saves as well as captured content. Its guided-save widget presents an editable draft, and its document API can update stored content. Hjarni makes the Markdown document the main writing surface: a note has a title, tags, a folder, and an edit history.
Compare retrieval with your own material
Supermemory separates source documents, extracted memories, and profile context. Hjarni uses full-text search over its notes. A useful evaluation saves representative decisions, corrects one, and checks what each assistant retrieves. Architecture alone does not establish which product will recall your information more reliably.
Usage and deployment
Supermemory's Free plan renews $5 of credits monthly; Pro is $19/month with $20 of included credits. Ingestion and queries consume credits, with separate rates for operations. Scale and Enterprise offer self-hosted deployments. Hjarni uses flat plans with note quotas and hosts in Germany. Assistant subscriptions and provider costs remain separate.
When Hjarni fits
Use Hjarni when you want a document-oriented knowledge base, shared folders, folder guidance, and per-note restore. Its standard ZIP export contains active Markdown notes and attachments, not revisions or folder instructions. Use Supermemory when its memory engine, semantic retrieval, profiles, and API suit your workflow.
Supermemory centers on its memory engine. Hjarni centers on your Markdown knowledge base.