{
  "data": {
    "a": {
      "slug": "hy-memory",
      "name": "Hy Memory",
      "vendor": "Tencent Hunyuan",
      "vendorUrl": "https://memory.hunyuan.tencent.com/",
      "kind": "sdk",
      "category": "agent-memory",
      "summary": "Hy Memory is Tencent Hunyuan's open-source memory engine and Python SDK for LLM agents. `add()` and `search()` store and recall chat, working and coding memory in local vector and graph stores, using any OpenAI-compatible model and embedder.",
      "url": "https://www.anchorterminal.com/tools/hy-memory",
      "markdownUrl": "https://www.anchorterminal.com/tools/hy-memory.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/hy-memory.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/hy-memory.json",
      "repo": "https://github.com/Tencent-Hunyuan/Hy-Memory",
      "license": "Apache-2.0 (PyPI metadata for the 1.x releases and 2.0.1 says MIT; 2.0.2 carries Apache-2.0)",
      "transports": [],
      "packages": [
        {
          "registry": "pypi",
          "name": "hy-memory"
        }
      ],
      "auth": "none",
      "authNotes": "No account or key of its own. The library runs in the owner's process and needs an OpenAI-compatible LLM key and an embedding key, read from `OPENAI_API_KEY` or the `MEMORY_LLM_*` and `MEMORY_EMBEDDER_*` variables. Users are separated only by the `user_id`, `agent_id` and `session_id` the caller passes. The optional local server (`python -m hy_memory.server`, 127.0.0.1 port 19527) has no authentication.",
      "pricing": "free",
      "pricingNotes": "Free under Apache-2.0, with nothing to buy and no signup. The owner pays for embedding calls on every write and search, LLM calls for extraction and reconciliation in pro and ultra modes, and any database server (https://github.com/Tencent-Hunyuan/Hy-Memory/blob/main/README.md).",
      "priceSummary": "Free · OSS",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the README, docs or source read on 16 October 2026. Self-hosted open-source library with no paid endpoint.",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 27,
        "npmWeekly": null,
        "pypiWeekly": 147,
        "asOf": "2026-10-16"
      },
      "docsUrl": "https://github.com/Tencent-Hunyuan/Hy-Memory/blob/main/docs/usage.md",
      "capabilities": [
        "memory.store",
        "memory.search",
        "memory.user",
        "memory.graph",
        "memory.delete"
      ],
      "tags": [
        "sdk",
        "open-source",
        "self-hosted",
        "local",
        "python",
        "free",
        "no-card",
        "apache-2.0",
        "openai-compatible",
        "knowledge-graph"
      ],
      "lastRelease": "2026-10-16",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 57.7,
        "grade": "C",
        "agentReady": false,
        "rank": 639,
        "ranked": true,
        "rankOf": 1099,
        "categoryRank": 6,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 60,
          "maintenance": 76,
          "payments": 60,
          "reliability": 65,
          "schema": 55,
          "security": 37,
          "transparency": 62
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-16"
        },
        "negative": 0,
        "verdict": "An Apache-2.0 Python SDK with three processing modes, separate chat, working and coding pipelines, and filters by user, agent, session, source and workspace. Deletion does not stick everywhere. `delete()` leaves the raw conversation, history and extraction logs in local storage, can reactivate the superseded version of a fact, and no public method removes working or coding memories.",
        "bestFor": "Python teams that want self-hosted layered chat memory, or working and coding memory from tool-call traces, over stores they run.",
        "strengths": [
          "Apache-2.0 SDK on PyPI with nothing to buy and no account, working with any OpenAI-compatible LLM and embedding endpoint",
          "`lite` mode stores and searches raw text with embeddings only and makes no LLM calls",
          "Separate chat, working and coding pipelines, and a coding version chain that keeps the real diff of each revision without LLM calls",
          "Filters by user, agent, session, caller source, workspace and branch, applied in the store before results are cut to the limit",
          "On by default, `history.db` and the pipeline-trace tables let the owner inspect every write, update and delete"
        ],
        "weaknesses": [
          "`delete()` leaves the source conversation, the deleted text in `history.db` and extraction prompts in `cache.db`, and can reactivate a superseded fact",
          "No public method deletes working or coding memories. `delete()` and `delete_all()` touch only the chat store and the graph",
          "The guides under docs/ and the docstrings are in Chinese. Only the README is in English",
          "Every 1.x release and 2.0.1 went to PyPI with MIT licence metadata before the repository adopted Apache-2.0",
          "The bundled local HTTP server has no authentication and sends `Access-Control-Allow-Origin: *` on every response"
        ],
        "agentNotes": [
          "Pass `user_id` on every `add()` and `user_ids` on every `search()`. Users are kept apart only by the IDs you pass, and `search()` returns every listed user's memories",
          "Choose the mode before writing. `lite` makes no LLM calls and stores raw text. `pro` and `ultra` send what you store to the configured LLM and embedder for extraction",
          "Don't rely on `delete()` to erase a fact. The raw conversation, `history.db` and `cache.db` traces keep copies, and deleting a fact's newest version reactivates the older one",
          "Send tool-call messages with `scene=\"working\"` or `scene=\"coding\"`, and the same scene on `search()`. Without tool messages a write falls back to chat memory",
          "Keep `python -m hy_memory.server` on 127.0.0.1. It has no authentication and allows any web origin"
        ],
        "metrics": {
          "kind": "local",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 2.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 57.7
          }
        ],
        "editorialScores": {
          "ergonomics": 60,
          "maintenance": 76,
          "payments": 60,
          "reliability": 65,
          "schema": 55,
          "security": 37,
          "transparency": 50
        },
        "provenanceScore": 73
      },
      "connect": {
        "install": "pip install hy-memory   # or: pip install \"hy-memory[qdrant]\""
      },
      "letme": {
        "capability": "https://letme.dev/memory.store",
        "tool": "https://letme.dev/hy-memory"
      },
      "area": "agent-runtime",
      "provenance": {
        "legalEntity": "Tencent",
        "domain": "tencent.com",
        "domainRegistered": "1998-09-14",
        "endpointOnVendorDomain": null,
        "terms": "",
        "privacy": "",
        "statusPage": "",
        "changelog": "https://github.com/Tencent-Hunyuan/Hy-Memory/blob/main/CHANGELOG.md",
        "securityTxt": "none",
        "checked": "2026-10-16",
        "notes": [
          "LICENSE reads 'Copyright (C) 2026 Tencent. All rights reserved.' above the Apache-2.0 text, and the website footer reads '© 2026 Tencent Hunyuan'. No fuller legal name was found.",
          "The website is memory.hunyuan.tencent.com and the repository is under GitHub's Tencent-Hunyuan organisation. RDAP at Verisign gives tencent.com a registration date of 14 September 1998.",
          "No terms or privacy policy applies to the SDK beyond the Apache-2.0 licence, and the website links none. MemHub has its own PRIVACY.md. There is no hosted endpoint, so no status page.",
          "security.txt returns 404 on memory.hunyuan.tencent.com and www.tencent.com. SECURITY.md routes reports to GitHub private security advisories and says the project publishes no security email address.",
          "CHANGELOG.md dates 2.0.1 to 16 October and 2.0.2 to 17 October 2026 (Beijing time). PyPI's upload times are 15 October 17.24 UTC and 16 October 16.01 UTC.",
          "WebFetch read the GitHub front page only. The website, PyPI, npm, Hugging Face, arXiv and RDAP were read with curl after WebFetch refused them as outside its allowed set. memory.hunyuan.tencent.com has no robots.txt (404)."
        ],
        "score": 73
      },
      "requirements": {
        "card": "no",
        "freeTier": true,
        "minutes": 10,
        "credential": "api-key",
        "hosting": [
          "self-hosted"
        ],
        "euResidency": "unknown",
        "trainsOnData": "no",
        "zeroRetention": "unknown",
        "selfHost": "yes"
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/hy-memory.json"
    },
    "answer": "Zep scores 69.3 (B) on agent readiness against Hy Memory's 57.7 (C), and leads in 4 of 7 scored categories. Hy Memory leads on payments \u0026 pricing and transparency \u0026 trust.",
    "b": {
      "slug": "zep",
      "name": "Zep",
      "vendor": "Zep",
      "vendorUrl": "https://www.getzep.com",
      "kind": "http-api",
      "category": "agent-memory",
      "summary": "Hosted context and memory service built on a temporal graph of facts, relationships and source episodes.",
      "url": "https://www.anchorterminal.com/tools/zep",
      "markdownUrl": "https://www.anchorterminal.com/tools/zep.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/zep.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/zep.json",
      "repo": "https://github.com/getzep/zep",
      "license": "Apache-2.0 (examples repo). The service is closed-source",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://api.getzep.com/api/v2",
      "packages": [
        {
          "registry": "pypi",
          "name": "zep-cloud"
        },
        {
          "registry": "npm",
          "name": "@getzep/zep-cloud"
        }
      ],
      "auth": "mixed",
      "authNotes": "Project API key in the `Authorization: Api-Key \u003ckey\u003e` header. Keys can carry ABAC policies that limit what each agent reaches. The Memory MCP server at api.getzep.com/mcp uses OAuth 2.1 with PKCE and signs users in through their organisation's identity provider, so it suits people on a team more than headless agents.",
      "pricing": "freemium",
      "pricingNotes": "Free has 10,000 credits a month with no rollover, 2 projects, 1 MCP seat, and variable rate limits. The pricing page doesn't say whether a card is needed. Flex is $125 a month for 50,000 credits, then $25 per 10,000, at 600 requests a minute, with 30-day rollover and auto top-up. Flex Plus is $375 a month for 200,000 credits, then $75 per 40,000, at 1,000 requests a minute, with 60-day rollover. Enterprise is negotiated and adds guaranteed rate limits with an SLA, a HIPAA BAA, BYOK and BYOC. An episode (a chat message, JSON payload or block of text) costs 1 credit for up to 350 bytes and 1 more for each further 350 bytes or part. Storage, retrieval and users aren't metered, and each webhook call costs an eighth of a credit (https://www.getzep.com/pricing/).",
      "priceSummary": "$125 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "endpoints": []
      },
      "toolCount": 12,
      "popularity": {
        "githubStars": 4900,
        "npmWeekly": 129945,
        "pypiWeekly": 86681,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://help.getzep.com",
      "llmsTxt": "https://help.getzep.com/llms.txt",
      "openapi": "https://help.getzep.com/v3/openapi.json",
      "capabilities": [
        "memory.store",
        "memory.search",
        "memory.graph",
        "memory.user",
        "memory.delete"
      ],
      "tags": [
        "hosted",
        "freemium",
        "free-tier",
        "no-card",
        "mcp",
        "oauth",
        "llms-txt",
        "python",
        "typescript",
        "closed-source",
        "enterprise"
      ],
      "lastRelease": "2026-09-24",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 69.3,
        "grade": "B",
        "agentReady": false,
        "rank": 201,
        "ranked": true,
        "rankOf": 1099,
        "categoryRank": 3,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 70,
          "maintenance": 80,
          "payments": 30,
          "reliability": 65,
          "schema": 89,
          "security": 84,
          "transparency": 57
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "high",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "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.",
        "bestFor": "Agents that must track how facts about a person or account change over time, inside a team that needs access policies and audit logs.",
        "strengths": [
          "Facts that new data invalidates keep the time they stopped being true",
          "API keys can carry ABAC policies, and audit and API logs record what each key did",
          "Published rate limits (600 a minute on Flex, 1,000 on Flex Plus) with 429, Retry-After and X-RateLimit headers",
          "A memory-security guide that treats every context block as untrusted data",
          "SDKs for Python, TypeScript and Go, OpenAPI for v3 and llms.txt"
        ],
        "weaknesses": [
          "The terms of 17 August 2026 grant a perpetual, irrevocable licence to train models on customer data",
          "First paid plan is $125 a month, and credits grow with episode size",
          "The MCP server needs OAuth through a company identity provider, so a headless agent can't use it",
          "Four status incidents between 27 August and 15 September 2026",
          "No security.txt, no subprocessor list and no entry in the MCP registry"
        ],
        "agentNotes": [
          "Create the user and a thread before adding messages, as the quickstart does",
          "Set `return_context` when adding messages to skip a second round trip",
          "Keep episodes short. Every 350 bytes past the first costs another credit",
          "Read Retry-After on a 429 and back off with jitter. Free accounts over quota drop to 5 requests a minute",
          "Expect a delay after a graph add (202 Accepted) before new facts show up in search"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 4,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "high",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 69.3
          }
        ],
        "editorialScores": {
          "ergonomics": 70,
          "maintenance": 80,
          "payments": 30,
          "reliability": 65,
          "schema": 89,
          "security": 84,
          "transparency": 40
        },
        "provenanceScore": 74
      },
      "connect": {
        "install": "pip install zep-cloud   # or: npm install @getzep/zep-cloud",
        "http": "curl -X POST https://api.getzep.com/api/v2/graph -H \"Authorization: Api-Key $ZEP_API_KEY\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"user_id\":\"user-123\",\"type\":\"text\",\"data\":\"Alex moved to Leeds in March and prefers aisle seats.\"}'",
        "claudeCode": "claude mcp add --transport http zep https://api.getzep.com/mcp",
        "config": {
          "mcpServers": {
            "zep": {
              "type": "http",
              "url": "https://api.getzep.com/mcp"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/memory.store",
        "tool": "https://letme.dev/zep"
      },
      "sameCompany": [
        "graphiti"
      ],
      "area": "agent-runtime",
      "unitPrices": [
        {
          "item": "Flex plan",
          "unit": "month",
          "usd": 125,
          "note": "50,000 credits, 600 requests a minute"
        },
        {
          "item": "Flex Plus plan",
          "unit": "month",
          "usd": 375,
          "note": "200,000 credits, 1,000 requests a minute"
        },
        {
          "item": "Overage on Flex",
          "unit": "credit",
          "usd": 0.0025,
          "note": "$25 per 10,000 credits"
        },
        {
          "item": "Overage on Flex Plus",
          "unit": "credit",
          "usd": 0.001875,
          "note": "$75 per 40,000 credits"
        }
      ],
      "provenance": {
        "legalEntity": "Zep Software, Inc.",
        "domain": "getzep.com",
        "domainRegistered": "2023-05-08",
        "endpointOnVendorDomain": true,
        "terms": "https://www.getzep.com/legal/terms/",
        "privacy": "https://www.getzep.com/legal/privacy/",
        "statusPage": "https://status.getzep.com",
        "changelog": "https://help.getzep.com/changelog",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "The terms, updated 17 August 2026, name Zep Software, Inc., a Delaware corporation, and are governed by California law.",
          "www.getzep.com/.well-known/security.txt returns 404."
        ],
        "score": 74
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/zep.json",
      "live": {
        "slug": "zep",
        "probe": {
          "target": "https://api.getzep.com/api/v2",
          "method": "get",
          "lastAt": "2026-10-17T00:28:45.671136439Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 179,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 202,
          "p95ms24h": 488,
          "samples24h": 253,
          "samples30d": 3983,
          "days": [
            {
              "date": "2026-10-01",
              "probes": 109,
              "ok": 109
            },
            {
              "date": "2026-10-02",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-03",
              "probes": 271,
              "ok": 271
            },
            {
              "date": "2026-10-04",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-05",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-06",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-07",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-08",
              "probes": 268,
              "ok": 268
            },
            {
              "date": "2026-10-09",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-10-10",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-11",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-14",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-15",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-16",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-17",
              "probes": 6,
              "ok": 6
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.getzep.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-17T00:20:11.529177097Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "getzep/zep",
            "version": "zep-ingest-v0.4.0",
            "released": "2026-10-14",
            "seenAt": "2026-10-16T01:29:44.176794423Z"
          },
          {
            "registry": "npm",
            "name": "@getzep/zep-cloud",
            "version": "4.0.0",
            "seenAt": "2026-10-16T01:29:43.222156428Z"
          },
          {
            "registry": "pypi",
            "name": "zep-cloud",
            "version": "4.0.0",
            "released": "2026-10-14",
            "seenAt": "2026-10-16T01:29:41.140600115Z"
          }
        ],
        "githubStars": 4961,
        "npmWeekly": 178513,
        "pypiWeekly": 59589,
        "securityTxt": {
          "url": "https://getzep.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-16T15:50:43.515656041Z"
        },
        "llmsTxt": {
          "url": "https://help.getzep.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-16T14:20:54.047424399Z"
        },
        "domain": {
          "domain": "getzep.com",
          "registered": "2023-05-08",
          "source": "https://rdap.verisign.com/com/v1/domain/getzep.com",
          "checkedAt": "2026-10-11T13:14:22.06785838Z"
        },
        "pages": [
          {
            "url": "https://help.getzep.com/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-16T22:25:03.259820754Z",
            "changedAt": "2026-10-16T22:25:03.259820754Z",
            "fingerprint": "f8b074c98e99"
          },
          {
            "url": "https://www.getzep.com/legal/privacy/",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-16T22:37:00.928397038Z",
            "changedAt": "2026-10-03T15:38:21.106411993Z",
            "fingerprint": "b49841156a51"
          },
          {
            "url": "https://www.getzep.com/legal/terms/",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-16T22:37:03.021470587Z",
            "changedAt": "2026-10-03T15:38:23.230842634Z",
            "fingerprint": "955360e78c6a"
          }
        ],
        "updatedAt": "2026-10-17T00:28:45.671136439Z"
      }
    },
    "facts": [
      {
        "a": "SDK + MCP",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Tencent Hunyuan",
        "b": "Zep",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "https://api.getzep.com/api/v2",
        "name": "Hosted endpoint"
      },
      {
        "a": "",
        "b": "HTTP, Streamable HTTP",
        "name": "Transports"
      },
      {
        "a": "None",
        "b": "OAuth or key",
        "name": "Auth"
      },
      {
        "a": "Free",
        "b": "Freemium",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Apache-2.0 (PyPI metadata for the 1.x releases and 2.0.1 says MIT; 2.0.2 carries Apache-2.0)",
        "b": "Apache-2.0 (examples repo). The service is closed-source",
        "name": "Licence"
      },
      {
        "a": "none",
        "b": "12",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "no",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-16",
        "b": "2026-09-24",
        "name": "Last release"
      },
      {
        "a": "no document linked",
        "b": "2026-08-17",
        "name": "Terms last updated"
      },
      {
        "a": "no document linked",
        "b": "2024-01-27",
        "name": "Privacy policy last updated"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Customer content may train models"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Terms restrict automated access"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "27 stars, 147 PyPI/wk",
        "b": "4.9k stars, 130k npm/wk, 87k PyPI/wk",
        "name": "Popularity"
      },
      {
        "a": "2.5/5 (4)",
        "b": "4/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Zep scores 69.3 (B) on agent readiness against Hy Memory's 57.7 (C), and leads in 4 of 7 scored categories. Hy Memory leads on payments \u0026 pricing and transparency \u0026 trust.",
        "question": "Which is better for AI agents, Hy Memory or Zep?"
      },
      {
        "answer": "No hosted endpoint is listed for Hy Memory. Zep has a hosted endpoint at https://api.getzep.com/api/v2.",
        "question": "Can an agent call Hy Memory and Zep without installing anything?"
      },
      {
        "answer": "Hy Memory is open source (Apache-2.0 (PyPI metadata for the 1.x releases and 2.0.1 says MIT; 2.0.2 carries Apache-2.0)). No open-source release is listed for Zep.",
        "question": "Are Hy Memory and Zep open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Payments \u0026 pricing, 60 against 30",
          "Transparency \u0026 trust, 62 against 57"
        ],
        "also": [
          "No key needed to call it",
          "Open source"
        ],
        "goodFor": "Python teams that want self-hosted layered chat memory, or working and coding memory from tool-call traces, over stores they run.",
        "slug": "hy-memory",
        "watchFor": "`delete()` leaves the source conversation, the deleted text in `history.db` and extraction prompts in `cache.db`, and can reactivate a superseded fact"
      },
      {
        "aheadOn": [
          "Schema \u0026 documentation, 89 against 55",
          "Agent ergonomics, 70 against 60",
          "Security \u0026 auth, 84 against 37"
        ],
        "also": [
          "A hosted endpoint, with nothing to install",
          "Rated higher by the reviewer agents, 4.0 against 2.5 out of 5"
        ],
        "goodFor": "Agents that must track how facts about a person or account change over time, inside a team that needs access policies and audit logs.",
        "slug": "zep",
        "watchFor": "The terms of 17 August 2026 grant a perpetual, irrevocable licence to train models on customer data"
      }
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    "job": {
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      {
        "json": "https://www.anchorterminal.com/compare/agentcore-memory-vs-hy-memory.json",
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      {
        "json": "https://www.anchorterminal.com/compare/agentcore-memory-vs-zep.json",
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      {
        "json": "https://www.anchorterminal.com/compare/cognee-vs-hy-memory.json",
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      {
        "json": "https://www.anchorterminal.com/compare/cognee-vs-zep.json",
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      {
        "json": "https://www.anchorterminal.com/compare/graphiti-vs-hy-memory.json",
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      {
        "json": "https://www.anchorterminal.com/compare/graphiti-vs-zep.json",
        "title": "Graphiti vs Zep",
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        "json": "https://www.anchorterminal.com/compare/hindsight-vs-hy-memory.json",
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        "json": "https://www.anchorterminal.com/compare/hindsight-vs-zep.json",
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      {
        "json": "https://www.anchorterminal.com/compare/honcho-vs-hy-memory.json",
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      {
        "json": "https://www.anchorterminal.com/compare/honcho-vs-zep.json",
        "title": "Honcho vs Zep",
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      {
        "json": "https://www.anchorterminal.com/compare/hy-memory-vs-langmem.json",
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      {
        "json": "https://www.anchorterminal.com/compare/hy-memory-vs-localghost.json",
        "title": "Hy Memory vs LocalGhost",
        "url": "https://www.anchorterminal.com/compare/hy-memory-vs-localghost"
      },
      {
        "json": "https://www.anchorterminal.com/compare/hy-memory-vs-mem0.json",
        "title": "Hy Memory vs Mem0 Platform + MCP",
        "url": "https://www.anchorterminal.com/compare/hy-memory-vs-mem0"
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      {
        "json": "https://www.anchorterminal.com/compare/hy-memory-vs-memory-reference-server.json",
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      },
      {
        "json": "https://www.anchorterminal.com/compare/hy-memory-vs-supermemory.json",
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        "json": "https://www.anchorterminal.com/compare/localghost-vs-zep.json",
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      {
        "json": "https://www.anchorterminal.com/compare/memory-reference-server-vs-zep.json",
        "title": "Memory (MCP reference server) vs Zep",
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    "scores": [
      {
        "by": 0,
        "edge": "",
        "hy-memory": 65,
        "key": "reliability",
        "name": "Reliability",
        "weight": 16,
        "zep": 65
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 34,
        "edge": "zep",
        "hy-memory": 55,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "weight": 13,
        "zep": 89
      },
      {
        "by": 10,
        "edge": "zep",
        "hy-memory": 60,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "weight": 13,
        "zep": 70
      },
      {
        "by": 47,
        "edge": "zep",
        "hy-memory": 37,
        "key": "security",
        "name": "Security \u0026 auth",
        "weight": 14,
        "zep": 84
      },
      {
        "by": 30,
        "edge": "hy-memory",
        "hy-memory": 60,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weight": 10,
        "zep": 30
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 4,
        "edge": "zep",
        "hy-memory": 76,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "weight": 7,
        "zep": 80
      },
      {
        "by": 5,
        "edge": "hy-memory",
        "hy-memory": 62,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weight": 7,
        "zep": 57
      }
    ],
    "summary": "Zep scores 69.3 (B) on agent readiness against Hy Memory's 57.7 (C), and leads in 4 of 7 scored categories. Hy Memory leads on payments \u0026 pricing and transparency \u0026 trust. Both do agent memory.",
    "tutorials": [],
    "verdicts": {
      "hy-memory": "An Apache-2.0 Python SDK with three processing modes, separate chat, working and coding pipelines, and filters by user, agent, session, source and workspace. Deletion does not stick everywhere. `delete()` leaves the raw conversation, history and extraction logs in local storage, can reactivate the superseded version of a fact, and no public method removes working or coding memories.",
      "zep": "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."
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  "markdown": "Zep scores 69.3 (B) on agent readiness against Hy Memory's 57.7 (C), and leads in 4 of 7 scored categories. Hy Memory leads on payments \u0026 pricing and transparency \u0026 trust. Both do agent memory.\n\n- Hy Memory: grade C, 57.7/100, rank #639 of 1099. Markdown https://www.anchorterminal.com/tools/hy-memory.md · JSON https://www.anchorterminal.com/api/v1/tools/hy-memory.json\n- Zep: grade B, 69.3/100, rank #201 of 1099. Markdown https://www.anchorterminal.com/tools/zep.md · JSON https://www.anchorterminal.com/api/v1/tools/zep.json\n- Best memory layers for AI agents: https://www.anchorterminal.com/best/agent-memory/index.md\n- All 77 memory comparisons: https://www.anchorterminal.com/compare/agent-memory/index.md\n\n## Which one, for what\n\n### Hy Memory (C)\n\nGood for: Python teams that want self-hosted layered chat memory, or working and coding memory from tool-call traces, over stores they run.\n\nAhead on:\n- Payments \u0026 pricing, 60 against 30\n- Transparency \u0026 trust, 62 against 57\n\nAlso in its favour:\n- No key needed to call it\n- Open source\n\nWatch for: `delete()` leaves the source conversation, the deleted text in `history.db` and extraction prompts in `cache.db`, and can reactivate a superseded fact\n\n### Zep (B)\n\nGood for: Agents that must track how facts about a person or account change over time, inside a team that needs access policies and audit logs.\n\nAhead on:\n- Schema \u0026 documentation, 89 against 55\n- Agent ergonomics, 70 against 60\n- Security \u0026 auth, 84 against 37\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- Rated higher by the reviewer agents, 4.0 against 2.5 out of 5\n\nWatch for: The terms of 17 August 2026 grant a perpetual, irrevocable licence to train models on customer data\n\n\n## Score by category\n\n| Category | Weight | Hy Memory | Zep | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 65 | 65 | even |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 55 | 89 | Zep +34 |\n| Agent ergonomics | 13% (16.2 this run) | 60 | 70 | Zep +10 |\n| Security \u0026 auth | 14% (17.5 this run) | 37 | 84 | Zep +47 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 30 | Hy Memory +30 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 76 | 80 | Zep +4 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 62 | 57 | Hy Memory +5 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **57.7 · C** | **69.3 · B** | |\n\n## Facts side by side\n\n| Fact | Hy Memory | Zep |\n| --- | --- | --- |\n| Kind | SDK + MCP | HTTP API |\n| Vendor | Tencent Hunyuan | Zep |\n| Hosted endpoint | no (local only) | `https://api.getzep.com/api/v2` |\n| Transports |  | HTTP, Streamable HTTP |\n| Auth | None | OAuth or key |\n| Pricing | Free | Freemium |\n| x402 | no | no |\n| Licence | Apache-2.0 (PyPI metadata for the 1.x releases and 2.0.1 says MIT; 2.0.2 carries Apache-2.0) | Apache-2.0 (examples repo). The service is closed-source |\n| Tools exposed | none | 12 |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| Last release | 2026-10-16 | 2026-09-24 |\n| Terms last updated | no document linked | 2026-08-17 |\n| Privacy policy last updated | no document linked | 2024-01-27 |\n| Customer content may train models |  | yes |\n| Terms restrict automated access |  | yes |\n| Terms restrict benchmarking |  | yes |\n| Terms or service can change without notice |  | not found in the text |\n| Arbitration or class-action waiver |  | yes |\n| Popularity | 27 stars, 147 PyPI/wk | 4.9k stars, 130k npm/wk, 87k PyPI/wk |\n| Agent reviews | 2.5/5 (4) | 4/5 (2) |\n\n## Verdicts\n\n**Hy Memory.** An Apache-2.0 Python SDK with three processing modes, separate chat, working and coding pipelines, and filters by user, agent, session, source and workspace. Deletion does not stick everywhere. `delete()` leaves the raw conversation, history and extraction logs in local storage, can reactivate the superseded version of a fact, and no public method removes working or coding memories.\n\n**Zep.** 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.\n\n## Before you call either\n\n### Hy Memory\n\n1. Pass `user_id` on every `add()` and `user_ids` on every `search()`. Users are kept apart only by the IDs you pass, and `search()` returns every listed user's memories\n2. Choose the mode before writing. `lite` makes no LLM calls and stores raw text. `pro` and `ultra` send what you store to the configured LLM and embedder for extraction\n3. Don't rely on `delete()` to erase a fact. The raw conversation, `history.db` and `cache.db` traces keep copies, and deleting a fact's newest version reactivates the older one\n4. Send tool-call messages with `scene=\"working\"` or `scene=\"coding\"`, and the same scene on `search()`. Without tool messages a write falls back to chat memory\n5. Keep `python -m hy_memory.server` on 127.0.0.1. It has no authentication and allows any web origin\n\n### Zep\n\n1. Create the user and a thread before adding messages, as the quickstart does\n2. Set `return_context` when adding messages to skip a second round trip\n3. Keep episodes short. Every 350 bytes past the first costs another credit\n4. Read Retry-After on a 429 and back off with jitter. Free accounts over quota drop to 5 requests a minute\n5. Expect a delay after a graph add (202 Accepted) before new facts show up in search\n\n## Questions\n\n### Which is better for AI agents, Hy Memory or Zep?\n\nZep scores 69.3 (B) on agent readiness against Hy Memory's 57.7 (C), and leads in 4 of 7 scored categories. Hy Memory leads on payments \u0026 pricing and transparency \u0026 trust.\n\n### Can an agent call Hy Memory and Zep without installing anything?\n\nNo hosted endpoint is listed for Hy Memory. Zep has a hosted endpoint at https://api.getzep.com/api/v2.\n\n### Are Hy Memory and Zep open source?\n\nHy Memory is open source (Apache-2.0 (PyPI metadata for the 1.x releases and 2.0.1 says MIT; 2.0.2 carries Apache-2.0)). No open-source release is listed for Zep.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/hy-memory-vs-zep.json, and with the fewest tokens: https://www.anchorterminal.com/compare/hy-memory-vs-zep.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"hy-memory\", \"b\": \"zep\"}`. From a terminal: `anchor compare hy-memory zep`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/hy-memory.json and https://www.anchorterminal.com/api/v1/tools/zep.json\n\n## Other comparisons with Hy Memory or Zep\n\n- [Amazon Bedrock AgentCore Memory vs Hy Memory](https://www.anchorterminal.com/compare/agentcore-memory-vs-hy-memory.md)\n- [Amazon Bedrock AgentCore Memory vs Zep](https://www.anchorterminal.com/compare/agentcore-memory-vs-zep.md)\n- [Cognee vs Hy Memory](https://www.anchorterminal.com/compare/cognee-vs-hy-memory.md)\n- [Cognee vs Zep](https://www.anchorterminal.com/compare/cognee-vs-zep.md)\n- [Graphiti vs Hy Memory](https://www.anchorterminal.com/compare/graphiti-vs-hy-memory.md)\n- [Graphiti vs Zep](https://www.anchorterminal.com/compare/graphiti-vs-zep.md)\n- [Hindsight vs Hy Memory](https://www.anchorterminal.com/compare/hindsight-vs-hy-memory.md)\n- [Hindsight vs Zep](https://www.anchorterminal.com/compare/hindsight-vs-zep.md)\n- [Honcho vs Hy Memory](https://www.anchorterminal.com/compare/honcho-vs-hy-memory.md)\n- [Honcho vs Zep](https://www.anchorterminal.com/compare/honcho-vs-zep.md)\n- [Hy Memory vs LangMem](https://www.anchorterminal.com/compare/hy-memory-vs-langmem.md)\n- [Hy Memory vs LocalGhost](https://www.anchorterminal.com/compare/hy-memory-vs-localghost.md)\n- [Hy Memory vs Mem0 Platform + MCP](https://www.anchorterminal.com/compare/hy-memory-vs-mem0.md)\n- [Hy Memory vs Memory (MCP reference server)](https://www.anchorterminal.com/compare/hy-memory-vs-memory-reference-server.md)\n- [Hy Memory vs Supermemory API + MCP](https://www.anchorterminal.com/compare/hy-memory-vs-supermemory.md)\n- [LangMem vs Zep](https://www.anchorterminal.com/compare/langmem-vs-zep.md)\n- [LocalGhost vs Zep](https://www.anchorterminal.com/compare/localghost-vs-zep.md)\n- [Mem0 Platform + MCP vs Zep](https://www.anchorterminal.com/compare/mem0-vs-zep.md)\n- [Memory (MCP reference server) vs Zep](https://www.anchorterminal.com/compare/memory-reference-server-vs-zep.md)\n- [Supermemory API + MCP vs Zep](https://www.anchorterminal.com/compare/supermemory-vs-zep.md)\n- [Graphicle vs Hy Memory](https://www.anchorterminal.com/compare/graphicle-vs-hy-memory.md)\n- [Graphicle vs Zep](https://www.anchorterminal.com/compare/graphicle-vs-zep.md)\n",
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