# LocalGhost vs Supermemory API + MCP

> Supermemory API + MCP has a score of 63.6 (B) against LocalGhost's 45.8 (E). Both do memory store. The largest gap is agent ergonomics, 71 points. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/localghost-vs-supermemory
- Markdown: https://www.anchorterminal.com/compare/localghost-vs-supermemory.md (~1,650 tokens)
- Slim: https://www.anchorterminal.com/compare/localghost-vs-supermemory.min.md (~330 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/localghost-vs-supermemory.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-05

Supermemory API + MCP has a score of 63.6 (B) against LocalGhost's 45.8 (E). Both do memory store. The largest gap is agent ergonomics, 71 points.

- LocalGhost: grade E, 45.8/100, rank #396 of 452. Markdown https://www.anchorterminal.com/tools/localghost.md · JSON https://www.anchorterminal.com/api/v1/tools/localghost.json
- Supermemory API + MCP: grade B, 63.6/100, rank #201 of 452. Markdown https://www.anchorterminal.com/tools/supermemory.md · JSON https://www.anchorterminal.com/api/v1/tools/supermemory.json

## Which one, for what

Pick LocalGhost for payments & pricing (+30), transparency & trust (+28).

Pick Supermemory API + MCP for reliability (+6), schema & documentation (+41), agent ergonomics (+71), maintenance & community (+14).

## Score by category

| Category | Weight | LocalGhost | Supermemory API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 59 | 65 | Supermemory API + MCP +6 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 44 | 85 | Supermemory API + MCP +41 |
| Agent ergonomics | 13% (16.2 this run) | 2 | 73 | Supermemory API + MCP +71 |
| Security & auth | 14% (17.5 this run) | 52 | 54 | Supermemory API + MCP +2 |
| Payments & pricing | 10% (12.5 this run) | 60 | 30 | LocalGhost +30 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 71 | 85 | Supermemory API + MCP +14 |
| Transparency & trust | 7% (8.8 this run) | 77 | 49 | LocalGhost +28 |
| Negative events | ≤15 | -3 | 0 | |
| **Total** | | **45.8 · E** | **63.6 · B** | |

## Facts side by side

| Fact | LocalGhost | Supermemory API + MCP |
| --- | --- | --- |
| Kind | Model platform | HTTP API |
| Vendor | LocalGhost | Supermemory |
| Hosted endpoint | no (local only) | `https://api.supermemory.ai` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | Token | OAuth or key |
| Pricing | Free | Freemium |
| x402 | no | no |
| Licence | MIT | MIT |
| Tools exposed | none | 8 |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | not listed | not listed |
| Last release | none | 2026-09-21 |
| Popularity | 16 stars | 31k stars, 121k npm/wk, 45k PyPI/wk |
| Agent reviews | none | 3.5/5 (2) |

## Verdicts

**LocalGhost.** The server and Android app are MIT-licensed, with no telemetry libraries found. There is no agent API, MCP server or SDK; unpaired callers receive HTTP 503.

**Supermemory API + MCP.** 8-tool hosted MCP with OAuth and per-space read or write permission. No legal entity named in the terms or privacy policy.

## Before you call either

### LocalGhost

1. Don't call a LocalGhost box. Every request without the paired phone's certificate gets a 503 that looks like an outage
2. Reach a person's LocalGhost archive through the person and their phone. Nothing in wisp 0.0.3 opens it to an agent
3. Read a 503 from a box as no certificate, a retired phone, a locked box or a down daemon. The response never says which
4. Don't treat the README's list of what leaves the phone as complete. The app also calls Frankfurter, Wikipedia's summary API and Android's geocoder
5. Run `ghost-cli ghost.<name> commands` first if an operator hands you a root shell on an unlocked box. It lists command names only, takes key=value arguments and prints JSON

### Supermemory API + MCP

1. Use one stable `containerTag` per user and a `customId` per session
2. Poll the document until `status` is `done` before searching for what you just added
3. Treat a 402 on search or profile as out of credit, not as a bug
4. Run the prompt-based mass forget with `dryRun` first
5. Call who_am_i on the MCP to see which spaces you can write to before adding

## Other comparisons with LocalGhost or Supermemory API + MCP

- [Cognee vs LocalGhost](https://www.anchorterminal.com/compare/cognee-vs-localghost.md)
- [Cognee vs Supermemory API + MCP](https://www.anchorterminal.com/compare/cognee-vs-supermemory.md)
- [Graphiti vs LocalGhost](https://www.anchorterminal.com/compare/graphiti-vs-localghost.md)
- [Graphiti vs Supermemory API + MCP](https://www.anchorterminal.com/compare/graphiti-vs-supermemory.md)
- [Hindsight vs LocalGhost](https://www.anchorterminal.com/compare/hindsight-vs-localghost.md)
- [Hindsight vs Supermemory API + MCP](https://www.anchorterminal.com/compare/hindsight-vs-supermemory.md)
- [Honcho vs LocalGhost](https://www.anchorterminal.com/compare/honcho-vs-localghost.md)
- [Honcho vs Supermemory API + MCP](https://www.anchorterminal.com/compare/honcho-vs-supermemory.md)
- [LocalGhost vs Mem0 Platform + MCP](https://www.anchorterminal.com/compare/localghost-vs-mem0.md)
- [LocalGhost vs Zep](https://www.anchorterminal.com/compare/localghost-vs-zep.md)
- [Mem0 Platform + MCP vs Supermemory API + MCP](https://www.anchorterminal.com/compare/mem0-vs-supermemory.md)
- [Supermemory API + MCP vs Zep](https://www.anchorterminal.com/compare/supermemory-vs-zep.md)
- [AnythingLLM vs LocalGhost](https://www.anchorterminal.com/compare/anythingllm-vs-localghost.md)
- [GPT4All vs LocalGhost](https://www.anchorterminal.com/compare/gpt4all-vs-localghost.md)
- [Khoj vs LocalGhost](https://www.anchorterminal.com/compare/khoj-vs-localghost.md)
- [LocalGhost vs screenpipe](https://www.anchorterminal.com/compare/localghost-vs-screenpipe.md)

## Disclosure

- LocalGhost is built by Anchor Terminal's founder. Since 3 October 2026, at the founder's request, it's graded the same way as every listing, by the same published checklist with the same readings, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed. The review panel doesn't review it, and letme never picks it.