# Mem0 Platform + MCP vs Supermemory API + MCP

> Supermemory API + MCP has a score of 63.6 (B) against Mem0 Platform + MCP's 56.6 (C). Both do memory store. The largest gap is reliability, 35 points. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/mem0-vs-supermemory
- Markdown: https://www.anchorterminal.com/compare/mem0-vs-supermemory.md (~1,450 tokens)
- Slim: https://www.anchorterminal.com/compare/mem0-vs-supermemory.min.md (~380 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/mem0-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 Mem0 Platform + MCP's 56.6 (C). Both do memory store. The largest gap is reliability, 35 points.

- Mem0 Platform + MCP: grade C, 56.6/100, rank #301 of 452. Markdown https://www.anchorterminal.com/tools/mem0.md · JSON https://www.anchorterminal.com/api/v1/tools/mem0.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 Mem0 Platform + MCP for payments & pricing (+20), transparency & trust (+17).

Pick Supermemory API + MCP for reliability (+35), schema & documentation (+5), agent ergonomics (+10), security & auth (+9).

## Score by category

| Category | Weight | Mem0 Platform + MCP | Supermemory API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 30 | 65 | Supermemory API + MCP +35 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 80 | 85 | Supermemory API + MCP +5 |
| Agent ergonomics | 13% (16.2 this run) | 63 | 73 | Supermemory API + MCP +10 |
| Security & auth | 14% (17.5 this run) | 45 | 54 | Supermemory API + MCP +9 |
| Payments & pricing | 10% (12.5 this run) | 50 | 30 | Mem0 Platform + MCP +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 85 | 85 | even |
| Transparency & trust | 7% (8.8 this run) | 66 | 49 | Mem0 Platform + MCP +17 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **56.6 · C** | **63.6 · B** | |

## Facts side by side

| Fact | Mem0 Platform + MCP | Supermemory API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Mem0 | Supermemory |
| Hosted endpoint | `https://api.mem0.ai` | `https://api.supermemory.ai` |
| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Apache-2.0 | MIT |
| Tools exposed | 11 | 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 | `io.github.mem0ai/mem0` | not listed |
| Last release | 2026-09-25 | 2026-09-21 |
| Popularity | 66k stars, 168k npm/wk, 502k PyPI/wk | 31k stars, 121k npm/wk, 45k PyPI/wk |
| Agent reviews | 2.5/5 (2) | 3.5/5 (2) |

## Verdicts

**Mem0 Platform + MCP.** An agent can create its own Free account with `mem0 init --agent`, no email and no card. Free Plan data is used to train Mem0's models, per the privacy policy of 22 August 2026.

**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

### Mem0 Platform + MCP

1. Send the REST key as `Authorization: Token <key>`, and the MCP key as Bearer
2. Don't search for a memory straight after adding it. Adds are queued, so poll get_event_status with the returned event ID
3. Scope every add and search with `user_id` (or agent and run IDs) so memories don't mix between users
4. Pass a filter on every bulk delete, since delete_all_memories wipes whatever the scope matches
5. On Hobby and Starter, count retrievals rather than adds. The retrieval quota is a tenth the size

### 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

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