lookup
Context7 lookup retrieves up-to-date library documentation, API references, and code examples through either a CLI tool or MCP server interface. Use it whenever you need to verify current API syntax, configuration, setup steps, or version-specific guidance for any library, framework, SDK, or cloud service.
Context7 lookup fetches current API documentation and code examples for libraries and frameworks you name.
AI-generated summary based on this skill's SKILL.md
Decision gist · record as of 2026-07-28
Context7 lookup fetches current API documentation and code examples for libraries and frameworks you name. Context7 lookup retrieves up-to-date library documentation, API references, and code examples through either a CLI tool or MCP server interface. Use it whenever you need to verify current API syntax, configuration, setup steps, or version-specific guidance for any library, framework, SDK, or cloud service.
Use it when
- Yes.
- lookup retrieves documentation for popular frameworks like React.
Verify before relying
Read SKILL.md below before installing (10 files). Open directory: indexed for reading, not audited.
Install
melodic-software/claude-code-plugins/lookup · repository language: Shell
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Frequently asked questions
AI-generated answers based on this skill's SKILL.md and metadata
How do I use lookup to find current API documentation?
lookup retrieves up-to-date library documentation, API references, and code examples through either a CLI tool or MCP server interface. Use lookup whenever you need to verify current API syntax, configuration, setup steps, or version-specific guidance for any library, framework, SDK, or cloud service instead of relying on potentially stale training data.
Can lookup help me verify syntax and configuration before using a library?
Yes. lookup is designed to verify syntax, configuration, or setup instructions for a library before using it. You can look up current best practices and exact API signatures to ensure your code will work correctly with the specific version you're targeting.
How do I look up React useEffect cleanup and other framework documentation?
lookup retrieves documentation for popular frameworks like React. Simply query lookup with your question—for example, 'lookup react useEffect cleanup'—and it will return current API documentation, code examples, and best practices for that specific feature or method.
Does lookup support version-specific guidance when migrating libraries?
Yes. lookup helps you find version-specific guidance and breaking changes when migrating between library versions. You can search for migration guides, deprecation notices, and compatibility information to plan upgrades safely.
What libraries and services does lookup cover?
lookup covers a wide range of libraries, frameworks, SDKs, and cloud services—including React, Node.js, Express, TypeScript, Python packages, Django, AWS, Next.js, Mongoose, FastAPI, Webpack, GraphQL, Tailwind CSS, GitHub API, Prisma, Docker, and many others. If it has public documentation, lookup can retrieve it.
How do I set up the lookup CLI tool and authentication?
lookup can be installed and configured as a CLI tool or MCP server. For setup details specific to your platform—such as installing on Windows—refer to the Context7 documentation or use lookup's own setup guidance to configure authentication and begin retrieving documentation.
SKILL.md
Rendered from the published skill. Quoted content, verbatim.
Pre-computed context
Installed CLI version: !ctx7 --version 2>/dev/null || echo "not installed (run: npm install -g ctx7@latest)"
MCP availability: check your own tool list — if mcp__context7__resolve-library-id / mcp__context7__query-docs are present, the MCP path is
(truncated - see the full file via the links below)
File tree — 10 files
plugins/context7/skills/lookup/SKILL.md
plugins/context7/skills/lookup/context/cli.md
plugins/context7/skills/lookup/context/lookup.md
plugins/context7/skills/lookup/context/mcp.md
plugins/context7/skills/lookup/context/update.md
plugins/context7/skills/lookup/evals/evals.json
plugins/context7/skills/lookup/scripts/update.sh
plugins/context7/skills/lookup/vendor/.markdownlint-cli2.jsonc
plugins/context7/skills/lookup/vendor/cli/SKILL.md
plugins/context7/skills/lookup/vendor/find-docs/SKILL.md
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Related skills
find-docs pulls live documentation and code examples for any developer library, framework, SDK, or CLI tool using the Context7 CLI. It resolves library names to IDs, then queries current docs—ideal for API syntax, configuration, version migrations, and setup instructions. Use it even for well-known tools like React or Django to verify against current docs rather than relying on potentially outdated training data.
find-docs fetches live documentation, API references, and code examples for developer libraries and frameworks via the Context7 CLI. Resolve a library name to its ID, then query docs with specific questions about APIs, configuration, setup, or usage—perfect for verifying current syntax and avoiding outdated training data. Works without authentication; higher rate limits available with login.
find-docs fetches up-to-date documentation, API references, and code examples for developer libraries and frameworks. It resolves package names to library IDs, then queries current docs—ideal when training data may be outdated or you need the latest API details.
context7-cli brings three core capabilities to your workflow: retrieve up-to-date documentation for any library, install and manage AI coding skills, and configure Context7 MCP integration with your editor. Use it when your training data may be stale, you need to verify API signatures, or you're setting up Context7 for Claude Code, Cursor, or OpenCode.
Context7 is an MCP server skill that connects you to library documentation, API references, and setup guides through mcporter in stdio mode. Query libraries like React to find specific documentation, resolve library identifiers, and access up-to-date technical resources without extra configuration.
Context7 is a CLI tool that pulls authoritative, up-to-date technical documentation and code examples for any developer technology—libraries, frameworks, APIs, SDKs, and cloud services. Use it to look up API endpoints, verify configuration options, answer how-to questions, and retrieve setup instructions when accuracy and current information matter most.
More skills context7-docs (MIT) · Context7 (NOASSERTION)