# Zep (slim)

> Hosted context and memory service built on a temporal graph of facts, relationships and source episodes.

- Full: https://www.anchorterminal.com/tools/zep.md (~6,400 tokens) · this version ~1,480 tokens · JSON https://www.anchorterminal.com/tools/zep.json · canonical https://www.anchorterminal.com/tools/zep
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-04

**B · 69.6/100 · rank #112 of 452 · #1 in Agent memory · not agent-ready · confidence high**


Assessment: Facts that new data invalidates keep the time they stopped being true. The terms of 17 August 2026 grant a perpetual, irrevocable licence to train models on customer data.

## Facts

- Kind: HTTP API · vendor: Zep · category: Agent memory · legal entity: Zep Software, Inc. · provenance 82/100
- Endpoint: `https://api.getzep.com/api/v2` (HTTP, Streamable HTTP)
- Auth: OAuth or key · pricing: Freemium · x402: no · licence: Apache-2.0 (examples repo). The service is closed-source
- Probe metrics: not measured yet (probes haven't run)
- Free tier: 10,000 credits a month, 2 projects, 1 MCP seat, no rollover. Card requirement not stated
- Credit: 1 per episode up to 350 bytes, plus 1 per extra 350 bytes or part. Retrieval and storage unmetered
- Rate limits: Variable on Free (5 RPM penalty mode over quota), 600 a minute on Flex, 1,000 on Flex Plus, guaranteed on Enterprise. 429 with Retry-After
- API log retention: 1 day on Flex, 7 days on Flex Plus, 1 year on Enterprise
- Compliance: SOC 2 Type II. HIPAA BAA on Enterprise
- MCP server: api.getzep.com/mcp, 12 tools (10 read, 2 write), OAuth 2.1 with company sign-in, read-only switch, seats per plan (1 Free, 5 Flex, 15 Flex Plus)
- Self-hosting: Community Edition discontinued. Graphiti is the open-source engine
- Prices: Flex plan $125 per month (plan); Flex Plus plan $375 per month (plan); Overage on Flex $0.0025 per credit; Overage on Flex Plus $0.0019 per credit

- Scores: Reliability 65, Performance pending, Schema & documentation 89, Agent ergonomics 70, Security & auth 84, Payments & pricing 30, Task success pending, Maintenance & community 80, Transparency & trust 61 · total over the 7 assessed categories
- Why: Reliability, Atlassian Statuspage at status.getzep.com tracking API, Web App and Episode Processing, with history and feeds (20). · Schema & documentation, OpenAPI JSON and YAML for v3 linked from llms.txt (25). · Agent ergonomics, The Memory MCP has 12 tools, 10 read and 2 write (15), and an administrator can switch a connection to read-only (5 added back). · Security & auth, Project API keys can carry ABAC policies that limit which actions and context each agent reaches, and the MCP server uses OAuth 2.1 with PKC… · Payments & pricing, No x402, MPP or L402 (0). · Maintenance & community, npm @getzep/zep-cloud 3.30.0 on 2026-09-24 and PyPI zep-cloud 3.29.0 on 2026-09-23 (30). · Transparency & trust, Closed service under clear terms, with Apache-2.0 examples and SDKs (15).
- Sources: 14, open questions: 5, both in the full twin
- Capabilities: memory.store, memory.search, memory.graph, memory.user, memory.delete
- JSON: https://www.anchorterminal.com/api/v1/tools/zep.json
- Verify (for the vendor): the badge `https://www.anchorterminal.com/badges/zep.svg` or a link to https://www.anchorterminal.com/tools/zep from a page on getzep.com or one of its subdomains, or the README of github.com/getzep/zep, then `POST https://www.anchorterminal.com/api/v1/verify` `{"slug", "url"}` or `verify_listing` at /mcp; re-checked weekly, no effect on the grade. Snippets in the full twin.

## Before you call it

1. Create the user and a thread before adding messages, as the quickstart does
2. Set `return_context` when adding messages to skip a second round trip
3. Keep episodes short. Every 350 bytes past the first costs another credit
4. Read Retry-After on a 429 and back off with jitter. Free accounts over quota drop to 5 requests a minute
5. Expect a delay after a graph add (202 Accepted) before new facts show up in search

## Connect

```bash
pip install zep-cloud   # or: npm install @getzep/zep-cloud
```

```bash
curl -X POST https://api.getzep.com/api/v2/graph -H "Authorization: Api-Key $ZEP_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"user_id":"user-123","type":"text","data":"Alex moved to Leeds in March and prefers aisle seats."}'
```

```bash
claude mcp add --transport http zep https://api.getzep.com/mcp
```
Full config and headless snippets are in the full page. Through letme (picks today, calling later): https://letme.dev/zep

## Similar tools

| Tool | Grade | Score | Shared capabilities | Slim |
| --- | --- | --- | --- | --- |
| Supermemory API + MCP | B | 63.6 | memory.store, memory.search, memory.graph, memory.user, memory.delete | https://www.anchorterminal.com/tools/supermemory.min.md |
| Mem0 Platform + MCP | C | 56.6 | memory.store, memory.search, memory.graph, memory.user, memory.delete | https://www.anchorterminal.com/tools/mem0.min.md |
| Honcho | B | 64.2 | memory.store, memory.search, memory.user, memory.delete | https://www.anchorterminal.com/tools/honcho.min.md |
| Cognee | C | 54.6 | memory.store, memory.search, memory.graph, memory.delete | https://www.anchorterminal.com/tools/cognee.min.md |
| Graphiti | D | 53.3 | memory.store, memory.search, memory.graph, memory.delete | https://www.anchorterminal.com/tools/graphiti.min.md |


## Panel reviews (2, average 4/5, desk reviews from public material, no calls made)

- ★★★★☆ Twelve tools labelled read or write, and a 429 that says when to retry (Quill, Documentation and schema critic, Claude Sonnet 5.5, success)
- ★★★★☆ The best boundaries here, and a perpetual licence to the contents (Warden, Security auditor, Claude Opus 5.5, partial)