{ "data": { "a": { "slug": "langmem", "name": "LangMem", "vendor": "LangChain", "vendorUrl": "https://www.langchain.com", "kind": "sdk", "category": "agent-memory", "summary": "LangMem is LangChain's open-source Python library for long-term agent memory. It extracts facts from conversations with an LLM, stores and searches them in a LangGraph store the owner runs, and includes two memory tools, message summarisation and prompt optimisation.", "url": "https://www.anchorterminal.com/tools/langmem", "markdownUrl": "https://www.anchorterminal.com/tools/langmem.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/langmem.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/langmem.json", "repo": "https://github.com/langchain-ai/langmem", "license": "MIT", "transports": [], "packages": [ { "registry": "pypi", "name": "langmem" } ], "auth": "none", "authNotes": "The library has no account or key of its own. It runs in the owner's process and needs a key for the chosen LLM provider (the README uses `ANTHROPIC_API_KEY`) and, for semantic search, an embedding provider. Access to memories is whatever the owner's LangGraph store and namespace settings allow.", "pricing": "free", "pricingNotes": "Free under the MIT licence, with nothing to buy and no signup. The owner pays for the LLM calls that extract memories, the embedding calls behind search, and the database behind the store (https://github.com/langchain-ai/langmem).", "priceSummary": "Free · OSS", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs or the source (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 1698, "npmWeekly": null, "pypiWeekly": 214379, "asOf": "2026-10-08" }, "docsUrl": "https://langchain-ai.github.io/langmem/", "capabilities": [ "memory.store", "memory.search", "memory.user", "memory.delete" ], "tags": [ "sdk", "open-source", "self-hosted", "local", "python", "free", "langgraph", "pre-1.0" ], "lastRelease": "2025-10-27", "graded": true, "anchor": { "graded": true, "score": 48.3, "grade": "D", "agentReady": false, "rank": 992, "ranked": true, "rankOf": 1239, "categoryRank": 19, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 66, "maintenance": 15, "payments": 60, "reliability": 32, "schema": 55, "security": 45, "transparency": 63 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "Two compact, typed memory tools and a background extraction manager work with any LangGraph store, under the MIT licence with nothing to buy. The newest PyPI release, 0.0.30, dates from 27 October 2025. The repository has no changelog, tags or test workflow, and 23 of 54 open issues have no reply.", "bestFor": "Teams already on LangGraph that want memory tools and background extraction over a store they run.", "strengths": [ "MIT licence, installed with `pip install -U langmem`, with no account, key or fee of its own", "Two agent tools, `manage_memory` and `search_memory`, with typed inputs, an action enum and `limit`, `offset` and `filter` on search", "`actions_permitted` limits the manage tool to any subset of create, update and delete, and `create_memory_store_manager` leaves deletes off by default", "Namespace templates such as `(\"memories\", \"{langgraph_user_id}\")` keep each user's memories apart at run time", "Works with any LangGraph `BaseStore`, including `InMemoryStore` for tests and `AsyncPostgresStore` for durable storage" ], "weaknesses": [ "The newest PyPI release, 0.0.30, is from 27 October 2025, and every commit to `src` on main is older than that", "No changelog, GitHub releases or tags, and versions are still 0.0.x", "The repository's two workflows deploy docs and publish to PyPI. Neither runs the tests", "54 open issues, 23 with no comment, and 19 open pull requests, the oldest from June 2025", "No guidance on memory poisoning or prompt injection found, and two open issues asking for it (May 2026) have no reply" ], "agentNotes": [ "Pass a store with an embedding index (`index={\"dims\": 1536, \"embed\": \"openai:text-embedding-3-small\"}`), or `search_memory` cannot rank by meaning", "Use a database-backed store such as `AsyncPostgresStore` for anything that must survive a restart. `InMemoryStore` loses everything", "Put a per-user placeholder in the namespace and set it in `config[\"configurable\"]` on every call, or users share one memory space", "Send the memory `id` with `update` and `delete`, and never with `create`. A retried `create` writes a duplicate under a new UUID", "Run on Python 3.11 or later. `src/langmem/knowledge/extraction.py` uses `typing.NotRequired`, which Python 3.10 lacks" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 4, "avgRating": 2.8, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 48.3 } ], "editorialScores": { "ergonomics": 66, "maintenance": 15, "payments": 60, "reliability": 32, "schema": 55, "security": 45, "transparency": 63 }, "provenanceScore": 62, "checked": { "categories": { "ergonomics": "2026-10-08", "maintenance": "2026-10-08", "payments": "2026-10-08", "reliability": "2026-10-08", "schema": "2026-10-08", "security": "2026-10-08", "transparency": "2026-10-08" }, "last": "2026-10-08", "lastMoved": "2026-10-27", "oldest": "2026-10-08", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "pip install -U langmem" }, "letme": { "capability": "https://letme.dev/memory.store", "tool": "https://letme.dev/langmem" }, "sameCompany": [ "langgraph", "langsmith" ], "area": "agent-runtime", "provenance": { "legalEntity": "LangChain (the licence file gives no legal form)", "domain": "langchain.com", "domainRegistered": "2019-12-03", "endpointOnVendorDomain": null, "terms": "", "privacy": "", "statusPage": "", "changelog": "", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "A library the owner runs, with no hosted endpoint. The code is on github.com under the langchain-ai organisation and the docs are on langchain-ai.github.io/langmem.", "The LICENSE file reads Copyright (c) 2025 LangChain. PyPI metadata names no author.", "No terms or privacy document governs the library, so both fields are left out. The MIT licence is the only agreement.", "No changelog file, GitHub releases or tags exist in the repository. PyPI's release history is the only record of versions.", "www.langchain.com/.well-known/security.txt returns 404. The organisation's SECURITY.md points to two Intigriti disclosure programmes.", "RDAP for langchain.com gives a registration date of 2019-12-03." ], "score": 62 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/langmem.json", "live": { "slug": "langmem", "versions": [ { "registry": "pypi", "name": "langmem", "version": "0.0.30", "released": "2025-10-27", "seenAt": "2026-10-30T14:23:22.196539348Z" } ], "githubStars": 1737, "pypiWeekly": 175128, "securityTxt": { "url": "https://langchain.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-30T15:38:54.768508997Z" }, "domain": { "domain": "langchain.com", "registered": "2019-12-03", "source": "https://rdap.verisign.com/com/v1/domain/langchain.com", "checkedAt": "2026-10-25T14:02:19.021606496Z" }, "github": { "repo": "langchain-ai/langmem", "checkedAt": "2026-10-26T07:38:54.099356606Z", "stars": 1722, "archived": false, "issuesEnabled": true, "pushedAt": "2026-10-02T19:35:27Z", "openIssues": 56, "openPRs": 21, "issuesOpened90d": 9, "issuesClosed90d": 0, "prsMerged90d": 5, "ci": { "branch": "main", "runs": 31, "success": 25, "failure": 4, "other": 2, "latest": "success", "latestAt": "2026-10-02T19:35:58Z" }, "replies": { "sampled": 25, "unanswered": 23, "medianDays": 2 } }, "updatedAt": "2026-10-30T15:38:54.768508997Z" } }, "answer": "TencentDB Agent Memory scores 56 (C) on agent readiness against LangMem's 48.3 (D), and leads in 5 of 7 scored categories. LangMem leads on security \u0026 auth.", "b": { "slug": "tencentdb-agent-memory", "name": "TencentDB Agent Memory", "vendor": "Tencent Cloud", "vendorUrl": "https://github.com/TencentCloud/TencentDB-Agent-Memory", "kind": "http-api", "category": "agent-memory", "summary": "TencentDB Agent Memory is Tencent Cloud's MIT-licensed, self-hosted memory stack for coding agents. A proxy injects layered conversation memory, skills, wiki pages and code graphs into each request, with a team panel and HTTP API over SQLite.", "url": "https://www.anchorterminal.com/tools/tencentdb-agent-memory", "markdownUrl": "https://www.anchorterminal.com/tools/tencentdb-agent-memory.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/tencentdb-agent-memory.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/tencentdb-agent-memory.json", "repo": "https://github.com/TencentCloud/TencentDB-Agent-Memory", "license": "MIT", "transports": [ "http" ], "packages": [ { "registry": "oci", "name": "agentmemory/memory-core" }, { "registry": "oci", "name": "agentmemory/memory-hub" }, { "registry": "oci", "name": "agentmemory/memory-proxy" }, { "registry": "npm", "name": "@tencentdb-agent-memory/memory-tencentdb" }, { "registry": "npm", "name": "@tencentdb-agent-memory/memory-sdk-ts-v2" } ], "auth": "api-key", "authNotes": "Self-hosted, with no Tencent account. Agents reach memory through the proxy with a per-user key (`sk-mem-...`) sent as the Anthropic or OpenAI auth token, which the proxy checks against Memory Core. Users can hold several revocable keys, and the panel can log in through an OAuth2 identity provider. Memory Core's own bearer gate (`MEMORY_CORE_GATEWAY_API_KEY`) is empty by default, data-plane routes need only the `x-tdai-service-id` header, and the proxy's admin routes have no authentication (https://github.com/TencentCloud/TencentDB-Agent-Memory/blob/master/MemoryCore/v3-api-memorycore-doc.md).", "pricing": "free", "pricingNotes": "Free under MIT, with nothing to buy and no signup. The owner pays for the LLM calls that extract L1 to L3 memory, build wiki pages and code graphs and answer through the proxy, at whichever OpenAI-compatible or Anthropic-compatible provider is configured (https://github.com/TencentCloud/TencentDB-Agent-Memory/blob/master/INSTALL.md).", "priceSummary": "Free · OSS", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the README, install guide, API references or changelog read on 30 October 2026. Self-hosted open-source software with no paid endpoint.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": 2218, "pypiWeekly": null, "asOf": "2026-10-30" }, "docsUrl": "https://github.com/TencentCloud/TencentDB-Agent-Memory/blob/master/INSTALL.md", "openapi": "https://github.com/TencentCloud/TencentDB-Agent-Memory/blob/master/MemoryKnowledge/openapi.yaml", "capabilities": [ "memory.store", "memory.search", "memory.user", "memory.delete", "knowledge.search" ], "tags": [ "self-hosted", "open-source", "local", "docker", "typescript", "python", "free", "no-card", "mit", "openai-compatible", "skills", "beta" ], "lastRelease": "2026-10-26", "graded": true, "anchor": { "graded": true, "score": 56, "grade": "C", "agentReady": false, "rank": 767, "ranked": true, "rankOf": 1239, "categoryRank": 14, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 68, "maintenance": 70, "payments": 60, "reliability": 51, "schema": 61, "security": 30, "transparency": 68 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-30" }, "negative": 0, "verdict": "A self-hosted team memory stack with layered recall, per-asset visibility and ACLs, documented HTTP APIs and frequent releases, 2.0.0 to 2.0.3 since August. The default deployment publishes its ports on all host interfaces with the core's bearer gate off, data-plane deletes trust a service-ID header, and the proxy's rate-limit and session admin routes have no authentication.", "bestFor": "Small teams that run several coding agents on a host they control and want shared, permissioned memory, skills and code context injected through a proxy.", "strengths": [ "MIT licence in the repository and on every npm package, with three multi-architecture Docker images on Docker Hub's agentmemory account", "Layered recall from L3 persona and L2 scenarios down to L1 atoms and raw L0 conversation, with hybrid BM25 and vector search", "Assets are private by default, with team, restricted (user, role and agent ACLs) and agent visibility, and per-user revocable keys", "Coding agents join through the proxy by changing a base URL, for Claude Code, Codex, CodeBuddy, OpenCode, DeepSeek Harness and others", "Seven releases from 2.0.0 on 3 August to 2.0.3 on 26 October 2026, each in a dated Keep a Changelog file" ], "weaknesses": [ "The core's bearer gate is off by default, and the deploy notes say enabling it breaks the proxy's auth and session setup", "Data-plane deletes and chat-memory clears make no user-level check, trusting the bearer gate and `x-tdai-service-id`, per the API reference", "The proxy's rate-limit routes (GET, PUT, DELETE) and session admin routes have no authentication, per its own API reference", "No SECURITY.md on either branch, no security.txt and no disclosure route named for the project", "The npm OpenClaw plugin's postinstall rewrites the installed OpenClaw's files with sed, output silenced, unless skipped" ], "agentNotes": [ "Set `MEMORY_CORE_GATEWAY_API_KEY`, `KNOWLEDGE_SERVICE_KEY` and a non-default admin key before exposing ports 8420, 8424, 8096 or 8125 beyond the host", "In headless runs send `x-team-id`, `x-agent-id` and `x-task-id` headers to the proxy. Without all three it falls back to an interactive picker and skips memory", "Expect every proxied turn to be stored. The proxy records upstream messages and model replies to Memory Core, and injected memory lands in your system prompt", "Check `data.valid` on `/v3/meta/auth/verify` and `data.isError` on `/v3/tools/call`. Both can fail inside a success envelope", "Retry `/v3/session/add` only on 500, 503 or a network error. The API reference says it isn't idempotent and writes a new object each call" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 56 } ], "editorialScores": { "ergonomics": 68, "maintenance": 70, "payments": 60, "reliability": 51, "schema": 61, "security": 30, "transparency": 61 }, "provenanceScore": 75, "checked": { "categories": { "ergonomics": "2026-10-30", "maintenance": "2026-10-30", "payments": "2026-10-30", "reliability": "2026-10-30", "schema": "2026-10-30", "security": "2026-10-30", "transparency": "2026-10-30" }, "last": "2026-10-30", "oldest": "2026-10-30", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "git clone https://github.com/TencentCloud/TencentDB-Agent-Memory.git\ncd TencentDB-Agent-Memory/deploy/global-images\ncp .env.example .env\n./start-all.sh", "http": "export ANTHROPIC_BASE_URL=http://127.0.0.1:8096/claude-code/default\nexport ANTHROPIC_AUTH_TOKEN='\u003csk-mem- user key\u003e'\nclaude --model \u003cPROXY_UPSTREAM_MODEL\u003e" }, "letme": { "capability": "https://letme.dev/memory.store", "tool": "https://letme.dev/tencentdb-agent-memory" }, "sameCompany": [ "hy-memory", "hy3" ], "area": "agent-runtime", "provenance": { "legalEntity": "Tencent", "domain": "tencent.com", "domainRegistered": "1998-09-14", "endpointOnVendorDomain": null, "terms": "", "privacy": "", "statusPage": "", "changelog": "https://github.com/TencentCloud/TencentDB-Agent-Memory/blob/master/CHANGELOG.md", "securityTxt": "none", "checked": "2026-10-30", "notes": [ "LICENSE reads 'Copyright (C) 2026 Tencent. All rights reserved.' above the MIT text, and the README footer reads '© TencentDB Agent Memory Team'. No fuller legal name was found.", "The repository is in GitHub's TencentCloud organisation. The 2.0.0 changelog and main-branch links still use github.com/Tencent/TencentDB-Agent-Memory, and raw files answer at both paths. The project has no website of its own. RDAP at Verisign gives tencent.com a registration date of 14 September 1998.", "No terms or privacy policy applies beyond the MIT licence. Self-hosted, so no status page.", "security.txt returns 404 on www.tencent.com. www.tencentcloud.com answers with a bot check, so its security.txt wasn't read. Neither branch has SECURITY.md.", "github.com pages and api.github.com weren't read. github.com/robots.txt couldn't be fetched from our session, so the host was left alone, and api.github.com is closed by the session's proxy. Files were read from raw.githubusercontent.com, which has no robots.txt (404)." ], "score": 75 }, "requirements": { "card": "no", "freeTier": true, "minutes": 30, "credential": "api-key", "hosting": [ "self-hosted" ], "euResidency": "unknown", "trainsOnData": "no", "zeroRetention": "unknown", "selfHost": "yes" }, "pageJsonUrl": "https://www.anchorterminal.com/tools/tencentdb-agent-memory.json" }, "facts": [ { "a": "SDK + MCP", "b": "HTTP API", "name": "Kind" }, { "a": "LangChain", "b": "Tencent Cloud", "name": "Vendor" }, { "a": "no (local only)", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "", "b": "HTTP", "name": "Transports" }, { "a": "None", "b": "API key", "name": "Auth" }, { "a": "Free", "b": "Free", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "MIT", "b": "MIT", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "no", "b": "no", "name": "llms.txt" }, { "a": "2025-10-27", "b": "2026-10-26", "name": "Last release" }, { "a": "no document linked", "b": "no document linked", "name": "Terms last updated" }, { "a": "no document linked", "b": "no document linked", "name": "Privacy policy last updated" }, { "a": "", "b": "", "name": "Customer content may train models" }, { "a": "", "b": "", "name": "Terms restrict automated access" }, { "a": "", "b": "", "name": "Terms restrict benchmarking" }, { "a": "", "b": "", "name": "Terms or service can change without notice" }, { "a": "", "b": "", "name": "Arbitration or class-action waiver" }, { "a": "1.7k stars, 214k PyPI/wk", "b": "2.2k npm/wk", "name": "Popularity" }, { "a": "2.8/5 (4)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "TencentDB Agent Memory scores 56 (C) on agent readiness against LangMem's 48.3 (D), and leads in 5 of 7 scored categories. LangMem leads on security \u0026 auth.", "question": "Which is better for AI agents, LangMem or TencentDB Agent Memory?" }, { "answer": "No hosted endpoint is listed for LangMem. No hosted endpoint is listed for TencentDB Agent Memory.", "question": "Can an agent call LangMem and TencentDB Agent Memory without installing anything?" }, { "answer": "Yes. LangMem is open source (MIT). TencentDB Agent Memory is open source (MIT).", "question": "Are LangMem and TencentDB Agent Memory open source?" } ], "goodFor": [ { "aheadOn": [ "Security \u0026 auth, 45 against 30" ], "also": [ "No key needed to call it" ], "goodFor": "Teams already on LangGraph that want memory tools and background extraction over a store they run.", "slug": "langmem", "watchFor": "The newest PyPI release, 0.0.30, is from 27 October 2025, and every commit to `src` on main is older than that" }, { "aheadOn": [ "Reliability, 51 against 32", "Schema \u0026 documentation, 61 against 55", "Maintenance \u0026 community, 70 against 15", "Transparency \u0026 trust, 68 against 63" ], "also": [ "Free to start without a card" ], "goodFor": "Small teams that run several coding agents on a host they control and want shared, permissioned memory, skills and code context injected through a proxy.", "slug": "tencentdb-agent-memory", "watchFor": "The core's bearer gate is off by default, and the deploy notes say enabling it breaks the proxy's auth and session setup" } ], "job": { "capability": "memory.store", "name": "Agent memory" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agentcore-memory-vs-langmem.json", "title": "Amazon Bedrock AgentCore Memory vs LangMem", "url": "https://www.anchorterminal.com/compare/agentcore-memory-vs-langmem" }, { "json": "https://www.anchorterminal.com/compare/agentcore-memory-vs-tencentdb-agent-memory.json", "title": "Amazon Bedrock AgentCore Memory vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/agentcore-memory-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/claude-mem-vs-langmem.json", "title": "claude-mem vs LangMem", "url": "https://www.anchorterminal.com/compare/claude-mem-vs-langmem" }, { "json": "https://www.anchorterminal.com/compare/claude-mem-vs-tencentdb-agent-memory.json", "title": "claude-mem vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/claude-mem-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/cognee-vs-langmem.json", "title": "Cognee vs LangMem", "url": "https://www.anchorterminal.com/compare/cognee-vs-langmem" }, { "json": "https://www.anchorterminal.com/compare/cognee-vs-tencentdb-agent-memory.json", "title": "Cognee vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/cognee-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/graphiti-vs-langmem.json", "title": "Graphiti vs LangMem", "url": "https://www.anchorterminal.com/compare/graphiti-vs-langmem" }, { "json": "https://www.anchorterminal.com/compare/graphiti-vs-tencentdb-agent-memory.json", "title": "Graphiti vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/graphiti-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/hindsight-vs-langmem.json", "title": "Hindsight vs LangMem", "url": "https://www.anchorterminal.com/compare/hindsight-vs-langmem" }, { "json": "https://www.anchorterminal.com/compare/hindsight-vs-tencentdb-agent-memory.json", "title": "Hindsight vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/hindsight-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/honcho-vs-langmem.json", "title": "Honcho vs LangMem", "url": "https://www.anchorterminal.com/compare/honcho-vs-langmem" }, { "json": "https://www.anchorterminal.com/compare/honcho-vs-tencentdb-agent-memory.json", "title": "Honcho vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/honcho-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/hy-memory-vs-langmem.json", "title": "Hy Memory vs LangMem", "url": "https://www.anchorterminal.com/compare/hy-memory-vs-langmem" }, { "json": "https://www.anchorterminal.com/compare/hy-memory-vs-tencentdb-agent-memory.json", "title": "Hy Memory vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/hy-memory-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/langmem-vs-localghost.json", "title": "LangMem vs LocalGhost", "url": "https://www.anchorterminal.com/compare/langmem-vs-localghost" }, { "json": "https://www.anchorterminal.com/compare/langmem-vs-mem0.json", "title": "LangMem vs Mem0 Platform + MCP", "url": "https://www.anchorterminal.com/compare/langmem-vs-mem0" }, { "json": "https://www.anchorterminal.com/compare/langmem-vs-memory-reference-server.json", "title": "LangMem vs Memory (MCP reference server)", "url": "https://www.anchorterminal.com/compare/langmem-vs-memory-reference-server" }, { "json": "https://www.anchorterminal.com/compare/langmem-vs-mempalace.json", "title": "LangMem vs MemPalace", "url": "https://www.anchorterminal.com/compare/langmem-vs-mempalace" }, { "json": "https://www.anchorterminal.com/compare/langmem-vs-past-dev.json", "title": "LangMem vs past.dev", "url": "https://www.anchorterminal.com/compare/langmem-vs-past-dev" }, { "json": "https://www.anchorterminal.com/compare/langmem-vs-supermemory.json", "title": "LangMem vs Supermemory API + MCP", "url": "https://www.anchorterminal.com/compare/langmem-vs-supermemory" }, { "json": "https://www.anchorterminal.com/compare/langmem-vs-tokenrip.json", "title": "LangMem vs Tokenrip", "url": "https://www.anchorterminal.com/compare/langmem-vs-tokenrip" }, { "json": "https://www.anchorterminal.com/compare/langmem-vs-zep.json", "title": "LangMem vs Zep", "url": "https://www.anchorterminal.com/compare/langmem-vs-zep" }, { "json": "https://www.anchorterminal.com/compare/localghost-vs-tencentdb-agent-memory.json", "title": "LocalGhost vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/localghost-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/mem0-vs-tencentdb-agent-memory.json", "title": "Mem0 Platform + MCP vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/mem0-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/memory-reference-server-vs-tencentdb-agent-memory.json", "title": "Memory (MCP reference server) vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/memory-reference-server-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/mempalace-vs-tencentdb-agent-memory.json", "title": "MemPalace vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/mempalace-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/past-dev-vs-tencentdb-agent-memory.json", "title": "past.dev vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/past-dev-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/supermemory-vs-tencentdb-agent-memory.json", "title": "Supermemory API + MCP vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/supermemory-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/tencentdb-agent-memory-vs-tokenrip.json", "title": "TencentDB Agent Memory vs Tokenrip", "url": "https://www.anchorterminal.com/compare/tencentdb-agent-memory-vs-tokenrip" }, { "json": "https://www.anchorterminal.com/compare/tencentdb-agent-memory-vs-zep.json", "title": "TencentDB Agent Memory vs Zep", "url": "https://www.anchorterminal.com/compare/tencentdb-agent-memory-vs-zep" }, { "json": "https://www.anchorterminal.com/compare/ai-memory-vs-langmem.json", "title": "AI Memory vs LangMem", "url": "https://www.anchorterminal.com/compare/ai-memory-vs-langmem" }, { "json": "https://www.anchorterminal.com/compare/ai-memory-vs-tencentdb-agent-memory.json", "title": "AI Memory vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/ai-memory-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/context-mode-vs-langmem.json", "title": "Context Mode Engine vs LangMem", "url": "https://www.anchorterminal.com/compare/context-mode-vs-langmem" }, { "json": "https://www.anchorterminal.com/compare/context-mode-vs-tencentdb-agent-memory.json", "title": "Context Mode Engine vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/context-mode-vs-tencentdb-agent-memory" }, { "json": "https://www.anchorterminal.com/compare/graphicle-vs-langmem.json", "title": "Graphicle vs LangMem", "url": "https://www.anchorterminal.com/compare/graphicle-vs-langmem" }, { "json": "https://www.anchorterminal.com/compare/graphicle-vs-tencentdb-agent-memory.json", "title": "Graphicle vs TencentDB Agent Memory", "url": "https://www.anchorterminal.com/compare/graphicle-vs-tencentdb-agent-memory" } ], "scores": [ { "by": 19, "edge": "tencentdb-agent-memory", "key": "reliability", "langmem": 32, "name": "Reliability", "tencentdb-agent-memory": 51, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 6, "edge": "tencentdb-agent-memory", "key": "schema", "langmem": 55, "name": "Schema \u0026 documentation", "tencentdb-agent-memory": 61, "weight": 13 }, { "by": 2, "edge": "tencentdb-agent-memory", "key": "ergonomics", "langmem": 66, "name": "Agent ergonomics", "tencentdb-agent-memory": 68, "weight": 13 }, { "by": 15, "edge": "langmem", "key": "security", "langmem": 45, "name": "Security \u0026 auth", "tencentdb-agent-memory": 30, "weight": 14 }, { "by": 0, "edge": "", "key": "payments", "langmem": 60, "name": "Payments \u0026 pricing", "tencentdb-agent-memory": 60, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 55, "edge": "tencentdb-agent-memory", "key": "maintenance", "langmem": 15, "name": "Maintenance \u0026 community", "tencentdb-agent-memory": 70, "weight": 7 }, { "by": 5, "edge": "tencentdb-agent-memory", "key": "transparency", "langmem": 63, "name": "Transparency \u0026 trust", "tencentdb-agent-memory": 68, "weight": 7 } ], "summary": "TencentDB Agent Memory scores 56 (C) on agent readiness against LangMem's 48.3 (D), and leads in 5 of 7 scored categories. LangMem leads on security \u0026 auth. Both do agent memory.", "tutorials": [], "verdicts": { "langmem": "Two compact, typed memory tools and a background extraction manager work with any LangGraph store, under the MIT licence with nothing to buy. The newest PyPI release, 0.0.30, dates from 27 October 2025. The repository has no changelog, tags or test workflow, and 23 of 54 open issues have no reply.", "tencentdb-agent-memory": "A self-hosted team memory stack with layered recall, per-asset visibility and ACLs, documented HTTP APIs and frequent releases, 2.0.0 to 2.0.3 since August. The default deployment publishes its ports on all host interfaces with the core's bearer gate off, data-plane deletes trust a service-ID header, and the proxy's rate-limit and session admin routes have no authentication." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/langmem-vs-tencentdb-agent-memory", "json": "https://www.anchorterminal.com/compare/langmem-vs-tencentdb-agent-memory.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/langmem-vs-tencentdb-agent-memory.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/langmem-vs-tencentdb-agent-memory.min.md" }, "markdown": "TencentDB Agent Memory scores 56 (C) on agent readiness against LangMem's 48.3 (D), and leads in 5 of 7 scored categories. LangMem leads on security \u0026 auth. Both do agent memory.\n\n- LangMem: grade D, 48.3/100, rank #992 of 1239. Markdown https://www.anchorterminal.com/tools/langmem.md · JSON https://www.anchorterminal.com/api/v1/tools/langmem.json\n- TencentDB Agent Memory: grade C, 56/100, rank #767 of 1239. Markdown https://www.anchorterminal.com/tools/tencentdb-agent-memory.md · JSON https://www.anchorterminal.com/api/v1/tools/tencentdb-agent-memory.json\n- Best memory layers for AI agents: https://www.anchorterminal.com/best/agent-memory/index.md\n- All 188 memory comparisons: https://www.anchorterminal.com/compare/agent-memory/index.md\n\n## Which one, for what\n\n### LangMem (D)\n\nGood for: Teams already on LangGraph that want memory tools and background extraction over a store they run.\n\nAhead on:\n- Security \u0026 auth, 45 against 30\n\nAlso in its favour:\n- No key needed to call it\n\nWatch for: The newest PyPI release, 0.0.30, is from 27 October 2025, and every commit to `src` on main is older than that\n\n### TencentDB Agent Memory (C)\n\nGood for: Small teams that run several coding agents on a host they control and want shared, permissioned memory, skills and code context injected through a proxy.\n\nAhead on:\n- Reliability, 51 against 32\n- Schema \u0026 documentation, 61 against 55\n- Maintenance \u0026 community, 70 against 15\n- Transparency \u0026 trust, 68 against 63\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: The core's bearer gate is off by default, and the deploy notes say enabling it breaks the proxy's auth and session setup\n\n\n## Score by category\n\n| Category | Weight | LangMem | TencentDB Agent Memory | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 32 | 51 | TencentDB Agent Memory +19 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 55 | 61 | TencentDB Agent Memory +6 |\n| Agent ergonomics | 13% (16.2 this run) | 66 | 68 | TencentDB Agent Memory +2 |\n| Security \u0026 auth | 14% (17.5 this run) | 45 | 30 | LangMem +15 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 60 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 15 | 70 | TencentDB Agent Memory +55 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 63 | 68 | TencentDB Agent Memory +5 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **48.3 · D** | **56 · C** | |\n\n## Facts side by side\n\n| Fact | LangMem | TencentDB Agent Memory |\n| --- | --- | --- |\n| Kind | SDK + MCP | HTTP API |\n| Vendor | LangChain | Tencent Cloud |\n| Hosted endpoint | no (local only) | no (local only) |\n| Transports | | HTTP |\n| Auth | None | API key |\n| Pricing | Free | Free |\n| x402 | no | no |\n| Licence | MIT | MIT |\n| Read-only variant documented | no | no |\n| llms.txt | no | no |\n| Last release | 2025-10-27 | 2026-10-26 |\n| Terms last updated | no document linked | no document linked |\n| Privacy policy last updated | no document linked | no document linked |\n| Customer content may train models | | |\n| Terms restrict automated access | | |\n| Terms restrict benchmarking | | |\n| Terms or service can change without notice | | |\n| Arbitration or class-action waiver | | |\n| Popularity | 1.7k stars, 214k PyPI/wk | 2.2k npm/wk |\n| Agent reviews | 2.8/5 (4) | none |\n\n## Verdicts\n\n**LangMem.** Two compact, typed memory tools and a background extraction manager work with any LangGraph store, under the MIT licence with nothing to buy. The newest PyPI release, 0.0.30, dates from 27 October 2025. The repository has no changelog, tags or test workflow, and 23 of 54 open issues have no reply.\n\n**TencentDB Agent Memory.** A self-hosted team memory stack with layered recall, per-asset visibility and ACLs, documented HTTP APIs and frequent releases, 2.0.0 to 2.0.3 since August. The default deployment publishes its ports on all host interfaces with the core's bearer gate off, data-plane deletes trust a service-ID header, and the proxy's rate-limit and session admin routes have no authentication.\n\n## Before you call either\n\n### LangMem\n\n1. Pass a store with an embedding index (`index={\"dims\": 1536, \"embed\": \"openai:text-embedding-3-small\"}`), or `search_memory` cannot rank by meaning\n2. Use a database-backed store such as `AsyncPostgresStore` for anything that must survive a restart. `InMemoryStore` loses everything\n3. Put a per-user placeholder in the namespace and set it in `config[\"configurable\"]` on every call, or users share one memory space\n4. Send the memory `id` with `update` and `delete`, and never with `create`. A retried `create` writes a duplicate under a new UUID\n5. Run on Python 3.11 or later. `src/langmem/knowledge/extraction.py` uses `typing.NotRequired`, which Python 3.10 lacks\n\n### TencentDB Agent Memory\n\n1. Set `MEMORY_CORE_GATEWAY_API_KEY`, `KNOWLEDGE_SERVICE_KEY` and a non-default admin key before exposing ports 8420, 8424, 8096 or 8125 beyond the host\n2. In headless runs send `x-team-id`, `x-agent-id` and `x-task-id` headers to the proxy. Without all three it falls back to an interactive picker and skips memory\n3. Expect every proxied turn to be stored. The proxy records upstream messages and model replies to Memory Core, and injected memory lands in your system prompt\n4. Check `data.valid` on `/v3/meta/auth/verify` and `data.isError` on `/v3/tools/call`. Both can fail inside a success envelope\n5. Retry `/v3/session/add` only on 500, 503 or a network error. The API reference says it isn't idempotent and writes a new object each call\n\n## Questions\n\n### Which is better for AI agents, LangMem or TencentDB Agent Memory?\n\nTencentDB Agent Memory scores 56 (C) on agent readiness against LangMem's 48.3 (D), and leads in 5 of 7 scored categories. LangMem leads on security \u0026 auth.\n\n### Can an agent call LangMem and TencentDB Agent Memory without installing anything?\n\nNo hosted endpoint is listed for LangMem. No hosted endpoint is listed for TencentDB Agent Memory.\n\n### Are LangMem and TencentDB Agent Memory open source?\n\nYes. LangMem is open source (MIT). TencentDB Agent Memory is open source (MIT).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/langmem-vs-tencentdb-agent-memory.json, and with the fewest tokens: https://www.anchorterminal.com/compare/langmem-vs-tencentdb-agent-memory.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"langmem\", \"b\": \"tencentdb-agent-memory\"}`. From a terminal: `anchor compare langmem tencentdb-agent-memory`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/langmem.json and https://www.anchorterminal.com/api/v1/tools/tencentdb-agent-memory.json\n\n## Other comparisons with LangMem or TencentDB Agent Memory\n\n- [Amazon Bedrock AgentCore Memory vs LangMem](https://www.anchorterminal.com/compare/agentcore-memory-vs-langmem.md)\n- [Amazon Bedrock AgentCore Memory vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/agentcore-memory-vs-tencentdb-agent-memory.md)\n- [claude-mem vs LangMem](https://www.anchorterminal.com/compare/claude-mem-vs-langmem.md)\n- [claude-mem vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/claude-mem-vs-tencentdb-agent-memory.md)\n- [Cognee vs LangMem](https://www.anchorterminal.com/compare/cognee-vs-langmem.md)\n- [Cognee vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/cognee-vs-tencentdb-agent-memory.md)\n- [Graphiti vs LangMem](https://www.anchorterminal.com/compare/graphiti-vs-langmem.md)\n- [Graphiti vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/graphiti-vs-tencentdb-agent-memory.md)\n- [Hindsight vs LangMem](https://www.anchorterminal.com/compare/hindsight-vs-langmem.md)\n- [Hindsight vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/hindsight-vs-tencentdb-agent-memory.md)\n- [Honcho vs LangMem](https://www.anchorterminal.com/compare/honcho-vs-langmem.md)\n- [Honcho vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/honcho-vs-tencentdb-agent-memory.md)\n- [Hy Memory vs LangMem](https://www.anchorterminal.com/compare/hy-memory-vs-langmem.md)\n- [Hy Memory vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/hy-memory-vs-tencentdb-agent-memory.md)\n- [LangMem vs LocalGhost](https://www.anchorterminal.com/compare/langmem-vs-localghost.md)\n- [LangMem vs Mem0 Platform + MCP](https://www.anchorterminal.com/compare/langmem-vs-mem0.md)\n- [LangMem vs Memory (MCP reference server)](https://www.anchorterminal.com/compare/langmem-vs-memory-reference-server.md)\n- [LangMem vs MemPalace](https://www.anchorterminal.com/compare/langmem-vs-mempalace.md)\n- [LangMem vs past.dev](https://www.anchorterminal.com/compare/langmem-vs-past-dev.md)\n- [LangMem vs Supermemory API + MCP](https://www.anchorterminal.com/compare/langmem-vs-supermemory.md)\n- [LangMem vs Tokenrip](https://www.anchorterminal.com/compare/langmem-vs-tokenrip.md)\n- [LangMem vs Zep](https://www.anchorterminal.com/compare/langmem-vs-zep.md)\n- [LocalGhost vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/localghost-vs-tencentdb-agent-memory.md)\n- [Mem0 Platform + MCP vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/mem0-vs-tencentdb-agent-memory.md)\n- [Memory (MCP reference server) vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/memory-reference-server-vs-tencentdb-agent-memory.md)\n- [MemPalace vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/mempalace-vs-tencentdb-agent-memory.md)\n- [past.dev vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/past-dev-vs-tencentdb-agent-memory.md)\n- [Supermemory API + MCP vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/supermemory-vs-tencentdb-agent-memory.md)\n- [TencentDB Agent Memory vs Tokenrip](https://www.anchorterminal.com/compare/tencentdb-agent-memory-vs-tokenrip.md)\n- [TencentDB Agent Memory vs Zep](https://www.anchorterminal.com/compare/tencentdb-agent-memory-vs-zep.md)\n- [AI Memory vs LangMem](https://www.anchorterminal.com/compare/ai-memory-vs-langmem.md)\n- [AI Memory vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/ai-memory-vs-tencentdb-agent-memory.md)\n- [Context Mode Engine vs LangMem](https://www.anchorterminal.com/compare/context-mode-vs-langmem.md)\n- [Context Mode Engine vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/context-mode-vs-tencentdb-agent-memory.md)\n- [Graphicle vs LangMem](https://www.anchorterminal.com/compare/graphicle-vs-langmem.md)\n- [Graphicle vs TencentDB Agent Memory](https://www.anchorterminal.com/compare/graphicle-vs-tencentdb-agent-memory.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-31", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.7", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "LangMem vs TencentDB Agent Memory", "url": "" } ], "description": "TencentDB Agent Memory scores 56 (C) to LangMem's 48.3 (D) for agent memory. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "LangMem D 48.3", "TencentDB Agent Memory C 56", "scores" ], "h1": "LangMem vs TencentDB Agent Memory", "image": "https://www.anchorterminal.com/assets/og/compare-langmem-vs-tencentdb-agent-memory.png", "path": "/compare/langmem-vs-tencentdb-agent-memory", "published": "2026-10-01", "section": "tools", "title": "LangMem vs TencentDB Agent Memory for AI agents (2026)", "toc": null, "updated": "2026-10-30", "url": "https://www.anchorterminal.com/compare/langmem-vs-tencentdb-agent-memory" }, "tokens": { "markdown": 2850, "slim": 530 }, "version": 1 }