20:"$Sreact.view_transition" 21:I[9754,["/_next/static/chunks/2qcf_o2xotudn.js","/_next/static/chunks/1gyqeidjm5eoa.js","/_next/static/chunks/0_fjnxc4tt_l_.js","/_next/static/chunks/1ymt1shyhmu-4.js","/_next/static/chunks/3kv2zf0i7s2wc.js","/_next/static/chunks/1ucasf31l8j2v.js","/_next/static/chunks/0yj6_8vip2oqy.js","/_next/static/chunks/2l5xdnifczg1b.js","/_next/static/chunks/192kgs9v_t14j.js","/_next/static/chunks/0z6pw0v5c_lx5.js","/_next/static/chunks/08r60e6icmtkc.js","/_next/static/chunks/3trx6c0i7_x-3.js","/_next/static/chunks/40sro5bzp9bi_.js","/_next/static/chunks/1wgf3tk38y6cf.js"],"ProjectDetail"] 22:T32eb, Context7 · 版本精准的官方源代码文档 · 引用账本

Context7 · 版本精准的官方源代码文档

把最新、版本精准的代码文档，从官方源注入 AI 代理

Context7 是一张持续增殖的引用账本：每次文档请求都被钉成一行——库 ID、所钉版本、指向官方源的指针。让 Cursor、Claude 等编码代理取回新鲜、可追溯的文档，而不是陈旧训练记忆里的幻觉 API。

#库 ID版本钉源出口

001 /supabase/supabase v2 · stable 官方源

002 /nextjs/next.js 14 + App Router 官方源

003 /vercel/langchain 0.3 · python 官方源

004 /prisma/prisma 6 · engines 官方源

每次检索一行记录：库 ID 决定取谁的文档，版本钉锁定精确版本，指针确保只来自官方源。

先解析库 ID，再取文档

不必记住包的完整路径或纠结别名。Context7 的 resolve-library-id 工具把一句模糊的库名解析成确定、可追溯的库 ID，再据它检索正确的文档。

MCP · resolve-library-id query: 使用 supabase 的客户端 API 创建表 resolve: /supabase/supabase supabase-js@1 过时

解析出的库 ID 与后续查询的版本一一对应，作为引用行的第一栏。

版本钉：精准到你想用的版本

给文档钉上具体版本。例如为 Next.js 钉住 14 + App Router，代理就拿 14 的权威文档，而不被默认最新或其他分支带偏。

要的是这一版

ctx7 docs /nextjs/next.js@14 只回传 14 与 App Router 的文档片段，注入判断所用 API 是否仍然成立。

已钉Next.js 14 · App Router

精确仅该版本符号

不再被陈旧记忆带偏

过时训练数据里的接口会被版本钉挡在门外，减少幻觉 API 与对不上号的代码片段。

挡下旧版 API 签名

注入当前版本的用法

CLI 与 MCP 双模式

无论代理通过技能调用命令，还是通过 MCP 服务器读取工具，Context7 都把同一份来源的文档送进上下文。

CLI + Skills

命令直接面向代理：

ctx7 library · ctx7 docs
ctx7 download · ctx7 rules

MCP 服务器

以工具形式暴露文档能力：

resolve-library-id
query-docs

仓库托管 MCP 服务器源码，面向 Cursor、Claude 等代理；解析与爬取等后端为私有组件。

一条查询管线

从提问到可取用的代码，链路是：解析库 ID、锁定版本、取回官方文档、注入上下文。每一段都有迹可循。

解析库 ID

把模糊提问映射到确定的库 ID。

钉住版本

定位使用者声明的具体版本。

取回官方文档

从官方源取回该版本的文档片段。

注入上下文

相关文档进入代理上下文，供回答与编写。

一条命令接入代理

在安装了 Node.js 18 及以上的环境，运行下面一行即可为 Cursor、Claude 等代理安装配置。

npx ctx7 setup

单命令完成安装与配置，随后即可在代理中按库 ID 与版本检索官方文档。

23:T335c, Context7 · Version-accurate code docs from official sources · Ledger

Context7 · Version-accurate docs from official sources

The latest, version-accurate code docs, injected into AI agents from official sources

Context7 is a growing ledger of references: every documentation request becomes one pinned line — the library ID, the pinned version, and a pointer to the official source. Coding agents like Cursor and Claude get fresh, traceable docs instead of hallucinated APIs from stale training memory.

#Library IDVersion pinOrigin

001 /supabase/supabase v2 · stable official

002 /nextjs/next.js 14 + App Router official

003 /vercel/langchain 0.3 · python official

004 /prisma/prisma 6 · engines official

One line per request: the library ID decides whose docs, the version pin locks the exact release, and the pointer guarantees the official source only.

Resolve the library ID first

You never need to recall a full package path or argue about aliases. The resolve-library-id MCP tool maps a vague library name onto a definite, traceable ID, then retrieves the right docs against it.

MCP · resolve-library-id query: create a table with the supabase client API resolve: /supabase/supabase supabase-js@1 stale

The resolved ID and the version queried later map one-to-one, becoming the first column of the reference line.

Version pin: precise to the release you mean

Pin the docs to a concrete version. Pin Next.js to 14 + App Router, and the agent reads the authoritative 14 docs — not a drifting default or another branch.

Exactly this release

ctx7 docs /nextjs/next.js@14 returns only the 14 and App Router doc snippets, so the agent can judge whether the API it wants is still valid.

PinnedNext.js 14 · App Router

Precisesymbols from that version only

No more stray memories

Stale interfaces from old training data are kept out by the pin, cutting hallucinated APIs and mismatched code fragments.

Blockedold API signatures

Injectedcurrent-version usage

CLI and MCP, two modes

Whether an agent invokes commands through skills or reads tools over an MCP server, Context7 feeds the same source of docs into the context.

CLI + Skills

Commands aimed straight at agents:

ctx7 library · ctx7 docs
ctx7 download · ctx7 rules

MCP server

Documentation exposed as tools:

resolve-library-id
query-docs

The repository hosts the MCP server source for agents like Cursor and Claude; parsing, crawling, and the API backend are private components.

A single query pipeline

From question to usable code, the chain is: resolve the ID, pin the version, fetch official docs, inject the context. Every stage is traceable.

Resolve the ID

Map a vague question to a definite library ID.

Pin the version

Locate the specific release the caller wants.

Fetch official docs

Pull that version's docs from the official source.

Inject the context

Relevant docs enter the agent context to answer and write.

One command to hook up your agent

On a machine with Node.js 18 or newer, run the line below to install and configure Context7 for agents like Cursor and Claude.

npx ctx7 setup

A single command completes install and configuration; then your agent can query official docs by library ID and version.

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