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LangflowLangflow

DataStax（原 Langflow AI）DataStax (Langflow AI origin)

开源Open source MITMIT 画布Canvas LLM应用LLM applications DataStaxDataStax 自托管Self-hosted 组件市场Component marketplace partial lifecycle: active 核验Checked 2026-10-30

Langflow 是使用 MIT 许可的 LLM 画布平台，现归 DataStax—— 产品叙事向企业数据栈（AstraDB 向量线）倾斜。Python 自定义组件是它的扩展主轴。

Langflow is an LLM canvas platform with a whole-repository MIT license, now under DataStax — the product narrative tilts toward the enterprise data stack (AstraDB vector line). Python custom components are its extension axis.

适合与不适合When to use it, when not to

适合：要 MIT 自由度、要 Python 写自定义组件、DataStax/向量库栈用户。不适合：要开箱企业治理（在 DataStax 托管线）；要「LangChain 官方」血统（它是独立近亲）。

A fit for: MIT-level freedom, writing custom components in Python, DataStax/vector-DB stack users. Not a fit for out-of-the-box enterprise governance (on the DataStax hosted line); expecting “LangChain official” lineage (it is an independent cousin).

中文生态China availability 国产 / 国内可直接用 / 备案状态 · 快照domestic / direct access / CAC filing · snapshot 2026-10-21

出品属地Origin: 国外出品foreign-made　Langflow AI 创立，现归 DataStax（美国）。Founded as Langflow AI, now under DataStax (US).
国内使用Direct access: 大陆可直连direct OK　docs.langflow.org / langflow.org 直连实测 200（2026-10-21）。docs.langflow.org / langflow.org measured 200 direct (2026-10-21).
备案状态CAC filing: 未见于备案名单not in filing list：未见于网信办公示名单（2026-10-21 检索）；该产品未面向大陆公众提供服务，备案不适用。not in the CAC public registry (searched 2026-10-21); the product does not serve the mainland public, so filing does not apply.

备案信息以网信办《生成式人工智能服务已备案信息》公示名单为准（按批次滚动更新，本站只抄编号不解读）；「大陆可直连」是本站从大陆网络直连实测的结果，不是厂商承诺。GitHub 类站点当日实测有波动，口径写在依据里。Filing status is quoted from the CAC public registry (updated batch by batch; this site copies the number and does not interpret it). "Direct access" is this site's own reachability measurement from a mainland network, not a vendor promise. GitHub-hosted sites fluctuated on the measurement day — the note says so.

固定坐标系Fixed coordinate system

8 个维度dimensions, 与同分区其他对象逐项可比each comparable item by item against others in the same section.

模型与开放条件Model & openness: 组件接各家 LLM/embedding/向量库；DataStax 收购后与其向量数据库（AstraDB）线深度整合，其余 provider 覆盖以官方 docs 为准，未逐条核验。
Components connect to each vendor's LLMs/embeddings/vector stores; after the DataStax acquisition it is deeply integrated with their vector-database line (AstraDB); other provider coverage follows the official docs, not verified item by item.
运行位置Where it runs: 开源自托管（pip/uv/Docker）+ DataStax 托管线；GitHub 155,885★、最近推送 2026-10-21（API 核验，非常活跃）。
Open-source self-hosting (pip/uv/Docker) + the DataStax hosted line; GitHub 155,885★, last push 2026-10-21 (API-verified, very active).
本地文件Local files: 自托管实例的数据、flow 定义与凭据全部落在自有环境；官方文档给导出/导入 flow 的机制（细节未逐条核验）。Cloud 托管线数据在 DataStax 云端。
On a self-hosted instance, data, flow definitions and credentials all land in your own environment; official docs describe flow export/import mechanisms (details not verified item by item). The Cloud hosted line keeps data on DataStax's cloud.
关机后的任务Tasks after shutdown: 自托管实例常开即承载 API 服务与后台执行；官方给部署文档（细节未逐条核验）。「电脑关了还能跑」取决于你把实例跑在哪——平台不替你保管关机后的执行。
A continuously running self-hosted instance carries API serving and background execution; official deployment docs exist (details not verified item by item). "Keeps running when your laptop is off" depends on where you run the instance — the platform does not hold executions for you after shutdown.
工具与扩展Tools & extensions: 组件市场（marketplace）+ 自定义组件是官方扩展面；MCP 支持状态未逐条核验。
Component marketplace + custom components are the official extension surface; MCP support status not verified item by item.
上下文与记忆Context & memory: flow 内状态与记忆组件是官方上下文面；跨 flow 记忆未逐条核验。
In-flow state and memory components are the official context surface; cross-flow memory not verified item by item.
权限与限制Permissions & limits: 开源版基础鉴权；企业治理随 DataStax 托管线——开/商分界未逐条核验。
Open-source edition has basic auth; enterprise governance comes with the DataStax hosted line — the open/commercial boundary not verified item by item.
适合什么任务Best for: 适合：要 MIT 许可的 LLM 画布、要 Python 自定义组件、DataStax 栈。不适合：要开箱企业治理（在托管线）。
Fits: an MIT-licensed LLM canvas, Python custom components, the DataStax stack. Does not fit: out-of-the-box enterprise governance (in the hosted line).

头号误解Top misconception

把它当「LangChain 官方产品」——它是独立项目（现归 DataStax），与 LangChain/LangGraph 是近亲不是同门Treating it as a “LangChain official product” — it is an independent project (now under DataStax), a cousin of LangChain/LangGraph, not a sibling
只看到星数不看归属——DataStax 收购后产品叙事向企业数据栈倾斜（按官方口径建档）Looking only at stars and not ownership — post-acquisition the narrative tilts to the enterprise data stack (filed per official positioning)

未知项清单Known unknowns

provider 全清单（未逐条核验）
MCP 支持状态（未核验到官方文档）
开源版与 DataStax 托管线的功能分界（未逐条核验）

The full provider catalog (not verified item by item)
MCP support status (no official documentation found)
The feature boundary between the open-source edition and the DataStax hosted line (not verified item by item)

证据来源Evidence sources

判断可回到以下一手源复核。本站核验日Every judgement can be rechecked against the primary sources below. Verified on 2026-10-30，内容更新日content updated on 2026-10-21。

类型Type	名称Name	链接Link
repo	langflow-ai/langflow · 仓库（155,885★，MIT，最近推送 2026-10-21，GitHub API 核验）langflow-ai/langflow · repository (155,885★, MIT, last push 2026-10-21, verified via GitHub API)	https://github.com/langflow-ai/langflow
docs	Langflow · 官方文档Langflow · official docs	https://docs.langflow.org
docs	Langflow · 官方首页Langflow · official homepage	https://www.langflow.org
changelog	langflow-ai/langflow · Releases（changelog）langflow-ai/langflow · Releases (changelog)	https://github.com/langflow-ai/langflow/releases

实测记录Measured runs

本档未跑工作流搭建实测；结论只覆盖平台能力与权限边界。

This site has not completed measured runs. The closest test protocol is the code-side protocols/framework/_protocol.md (the tool-calling and credential-boundary sections are reusable; no workflow-platform-specific protocol exists on this site yet).