Context7
The document retrieval service launched by Upstash directly feeds the latest version-related library documents and code examples into the context of AI programming assistants. The official claims that it can reduce outdated writing and fictional APIs, and is compatible with a variety of mainstream programming tools.
Updated: 2026-10-26
What is Context7?
Context7 is a documentation service developed by the Upstash team, with its official website title stating "Up-to-date documentation for LLMs and AI code editors". It solves a very specific problem: when large models write code, they use outdated library documents from training data, resulting in obsolete calling methods and non-existent APIs. Context7 directly delivers matching documentation and code examples for the current version into the context of programming assistants. The official description is "no more outdated code or hallucinated APIs".
Who is it for?
- Frontend and backend developers who write code with AI assistants and often get stuck with outdated APIs.
- Teams that maintain SDKs with frequent version upgrades and need to align their AI assistants with the current version documentation.
- Teams that build internal component libraries or private frameworks and want to feed the documentation from their own repositories to AI assistants via Docs7.
- Developers who use multiple programming assistants at the same time and want the document source to remain unchanged when switching tools.
Key features
6Fetch documents by version
The official website states that it provides up-to-date, version-specific documentation and code examples that cover the libraries you are actually using.
One-line prompt integration
The official usage is to add `use context7` in the prompt, for example, "Create a Next.js middleware that checks for a valid JWT in cookies… use context7". The assistant will then retrieve the current version's documentation before generating a response.
Multi-tool Support
Officially supports mainstream AI programming tools such as Cursor, Claude Code, Codex, Devin Desktop, and Antigravity.
Docs7 Self-Submission
The site provides a submission portal for Docs7, allowing users to add documents to their own libraries. It also includes a library ranking list and credibility information (Name, Source, Benchmark, Snippets, Update, Trust).
CLI and Installation
`npx ctx7 setup` is used for configuration; the documentation site also features sections for CLI, Search API, installation page, and Coding Agents.
API Key
The official documentation states that obtaining an API Key unlocks higher call limits and also supports private repositories.
How to use Context7
- Verify it in a familiar library right after installation: Deliberately ask a question whose answer you know, compare the responses with and without Context7 enabled, and you can directly see the difference.
- The quality of the documentation depends on the library itself.
- The Update and Trust fields on the leaderboard page can be used as a reference.
- When encountering suspicious entries, it is recommended to check the content first before deciding whether to include them in the project.
- Private repositories require API Key authorization, which involves the disclosure of credentials.
- Before launching, please confirm your company's policy on third-party documentation services, and prioritize using read-only, least-privilege keys.
- The official pricing and package details are subject to the in-site Pricing page.
- the rules may be adjusted, so please verify again before purchase.
Traffic & popularity
Data month Sep 2026
Context7 receives about 1.7M visits per month and ranks #27,793 worldwide.
Monthly visits
12 monthsTraffic sources
- Search45.8%
- Direct30.3%
- Referrals11.8%
- AI assistants9.3%
- Social1.8%
- Other1.0%
Top countries
- United States13.7%
- Brazil6.9%
- India6.0%
- Germany5.4%
- China4.4%
Estimated from third-party traffic data.
Similar tools
Code WikiA tool that automatically generates and continuously synchronizes documentation for codebases, which the official says allows for instant access to code insights, API references and architecture overviews, saving teams the cost of manually writing and maintaining documentation.
ComposioA platform that provides tool access and authorization infrastructure for AI agents, officially claiming to connect over 1500 applications, retrieve tools on demand, host OAuth authorizations, and support CLI, MCP gateway, and sandbox execution.
CodeBuddyTencent Cloud has launched an AI full-process intelligent programming tool, which the official says is available in three forms: IDE, editor plug-ins and CLI. Based on conversational large models such as Hunyuan, it covers demand analysis, design draft to code conversion, code completion and one-click deployment.
CodeGPTCodeGPT is an AI programming agent embedded in mainstream development environments. It supports integrating multiple models with its own API Key. It first reads the code, provides modifiable solutions, and then takes action, making it suitable for teams that value data controllability.
opcodeA desktop client built for Claude Code, officially described as managing Claude sessions through a graphical interface, creating custom Agents, tracking usage, and transforming command-line operations in the terminal into visual panels.
Maiya AIA one-stop AI collaborative development platform for product and R&D teams, officially covering four stages: requirement prototyping, professional documentation, code development, and testing and delivery. It offers AI prototyping, AI documentation writing, AI code writing, and AI automated testing.