Give your AI coding assistant accurate, up-to-date documentation, without sending a single byte to the cloud.
$ openground add nextjs
Extracting docs from sitemap... 142 pages
Chunking and embedding... done in 8.3s
Stored in local LanceDB ✓
$ openground install-mcp --cursor
MCP server configured for Cursor ✓
// Now your AI agent can search Next.js docs locally
Training data goes stale. Cloud services see your queries. Your code breaks. There's a better way.
LLMs are trained on snapshots of documentation. By the time you use them, APIs have changed and best practices have shifted.
Most doc-search tools send your queries to third-party servers where they're processed, stored, and used for benchmarking.
Cloud services only index what they choose. Internal docs, niche libraries, and private repos are left out, unless you pay.
Embeddings, vector search, and retrieval all happen locally. Your queries and documentation never leave your machine.
Ingest from git repos, XML sitemaps, or local directories. If it's docs, openground can index it.
Combines semantic vector search with BM25 full-text search for results that are both relevant and precise.
Search the exact version you're using. Not whatever was current when the model was trained.
Updates are instant. Only changed pages get re-indexed.
Works with Cursor, Claude Code, and OpenCode out of the box. One install command and your agents can search.
Point openground at any documentation source: a sitemap URL, a GitHub repo, or a local directory.
$ openground add nextjs --source https://nextjs.org/sitemap.xml
One command sets up the MCP server in your editor. Cursor, Claude Code, and OpenCode are all supported.
$ openground install-mcp --cursor
Ask your AI anything. It searches your local docs automatically and gives you accurate answers for the exact version you're using.
$ // No command needed. Your AI just knows.
See how openground stacks up against cloud-based alternatives.
| Feature | openground | Context7 | Web Search |
|---|---|---|---|
| Data Location | On-device | Cloud API | Cloud |
| Privacy | Nothing leaves your machine | Queries sent to Upstash, processed by OpenAI/Gemini | Queries sent to search engine |
| Custom / Private Docs | Any source, no restrictions | Pro/Enterprise plan required | Not possible |
| API Key Required | No | Yes | Depends |
| Cost | Free & open source | Free tier, paid for private repos | Free but unreliable |
| Offline Support | Yes | No | No |
| Search Quality | Hybrid semantic + BM25 | Cloud-ranked, LLM-reranked | Generic web ranking |
| Version Support | Multi-version per library | Version-specific | No version awareness |
| Library Coverage | Any library. You add what you need. | 9,000+ pre-indexed, limited to catalog | Unlimited but noisy |
Need openground tailored to your organization? We offer custom solutions for teams that need more.