[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_112":113},"routes/modules.$creator.$moduleId",{"_14":15,"_16":17,"_18":19,"_20":21},"routes/modules.$creator.$moduleId.endpoints",{"_11":12,"_13":-5},"error","Module '@cyanheads/hn-mcp-server' is not configured","tools","module",{"_20":22,"_23":24,"_25":26,"_27":28,"_29":30,"_31":32,"_33":26,"_34":-5,"_35":36,"_37":-5,"_38":-5,"_39":40,"_41":42,"_43":44,"_45":46,"_47":48,"_49":50,"_51":52,"_53":54,"_55":48,"_56":57,"_58":59,"_60":-5,"_61":-5,"_62":-5,"_63":-5,"_64":65,"_66":67,"_68":69,"_70":71,"_72":73,"_74":-5,"_75":-5,"_76":-5,"_77":48,"_78":-5,"_79":80,"_81":82,"_83":84,"_85":86,"_87":88,"_89":90,"_91":92},"apiUrl","https://odel.app/api","creator","cyanheads","moduleId","hn-mcp-server","@cyanheads/hn-mcp-server","displayName","hn mcp server","tagline","Browse Hacker News feeds, threads, and user profiles with full-text search.","iconKey","https://avatars.githubusercontent.com/u/10339515?v=4","category","dev-tools","status","published","metaDescription","metaKeywords","deploymentType","external","workerName","bindingName","mcpConfig","{\"url\":\"https://hn.caseyjhand.com/mcp\",\"transport\":\"streamable-http\",\"authType\":\"none\"}","pricingModel","free","creatorUserId","system:external-import","createdAt",1781363414000,"updatedAt",1781499612000,"sourceRegistry","official-mcp-registry","sourceUrl","https://registry.modelcontextprotocol.io/v0/servers?search=io.github.cyanheads%2Fhn-mcp-server","sourceVerified",true,"importedAt","upstreamStars",3,"upstreamUpdatedAt",1781252998000,"detectedTransport","detectedAuthType","probeStatus","lastProbedAt","githubRepoUrl","https://github.com/cyanheads/hn-mcp-server","githubRepoFullName","cyanheads/hn-mcp-server","releaseId","ext-cyanheads-hn-mcp-server","version","0.5.10","descriptionMarkdown","

@cyanheads/hn-mcp-server

Browse Hacker News feeds, threads, and user profiles with full-text search via MCP. STDIO or Streamable HTTP.\n

4 Tools

\n\n

\n\n[![Version](https://img.shields.io/badge/Version-0.5.10-blue.svg?style=flat-square)](./CHANGELOG.md) [![License](https://img.shields.io/badge/License-Apache%202.0-orange.svg?style=flat-square)](./LICENSE) [![Docker](https://img.shields.io/badge/Docker-ghcr.io-2496ED?style=flat-square&logo=docker&logoColor=white)](https://github.com/users/cyanheads/packages/container/package/hn-mcp-server) [![MCP SDK](https://img.shields.io/badge/MCP%20SDK-^1.29.0-green.svg?style=flat-square)](https://modelcontextprotocol.io/) [![npm](https://img.shields.io/npm/v/@cyanheads/hn-mcp-server?style=flat-square&logo=npm&logoColor=white)](https://www.npmjs.com/package/@cyanheads/hn-mcp-server) [![TypeScript](https://img.shields.io/badge/TypeScript-^5.9.3-3178C6.svg?style=flat-square)](https://www.typescriptlang.org/) [![Bun](https://img.shields.io/badge/Bun->=1.3.0-f9f1e1.svg?style=flat-square)](https://bun.sh/)\n\n

\n\n

\n\n[![Install in Claude Desktop](https://img.shields.io/badge/Install_in-Claude_Desktop-D97757?style=for-the-badge&logo=anthropic&logoColor=white)](https://github.com/cyanheads/hn-mcp-server/releases/latest/download/hn-mcp-server.mcpb) [![Install in Cursor](https://cursor.com/deeplink/mcp-install-dark.svg)](https://cursor.com/en/install-mcp?name=hn-mcp-server&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsIkBjeWFuaGVhZHMvaG4tbWNwLXNlcnZlciJdfQ==) [![Install in VS Code](https://img.shields.io/badge/VS_Code-Install_Server-0098FF?style=for-the-badge&logo=visualstudiocode&logoColor=white)](https://vscode.dev/redirect?url=vscode:mcp/install?%7B%22name%22%3A%22hn-mcp-server%22%2C%22command%22%3A%22npx%22%2C%22args%22%3A%5B%22-y%22%2C%22%40cyanheads/hn-mcp-server%22%5D%7D)\n\n[![Framework](https://img.shields.io/badge/Built%20on-@cyanheads/mcp--ts--core-67E8F9?style=flat-square)](https://www.npmjs.com/package/@cyanheads/mcp-ts-core)\n\n

\n\n

\n\n**Public Hosted Server:** [https://hn.caseyjhand.com/mcp](https://hn.caseyjhand.com/mcp)\n\n

\n\n---\n\n## Tools\n\nFour read-only tools for accessing Hacker News data:\n\n| Tool Name | Description |\n|:----------|:------------|\n| `hn_get_stories` | Fetch stories from an HN feed (top, new, best, ask, show, jobs) with pagination. |\n| `hn_get_thread` | Get an item and its comment tree as a threaded discussion with depth/count controls. |\n| `hn_get_user` | Fetch a user profile with karma, about, and optionally their recent submissions. |\n| `hn_search_content` | Search stories and comments via Algolia with type, author, date, and score filters. |\n\n### `hn_get_stories`\n\nFetch stories from any HN feed with pagination support.\n\n- Six feed types: `top`, `new`, `best`, `ask`, `show`, `jobs`\n- Configurable count (1–100, default 30) and offset for pagination\n- Returns enriched story objects with title, URL, score, author, comment count, and body text\n\n---\n\n### `hn_get_thread`\n\nRetrieve an item and its full comment tree via ranked breadth-first traversal.\n\n- Depth control (0–10, default 3) — depth 0 doubles as a single-item lookup\n- Comment limit (1–200, default 50) caps total comments across all levels\n- Breadth-first traversal preserves HN's ranking order\n- Flat comment list with `depth`/`parentId` for tree reconstruction\n\n---\n\n### `hn_get_user`\n\nFetch a user profile with optional recent submission resolution.\n\n- Profile includes karma, creation date, and about text (HTML stripped)\n- Optionally resolves up to 50 most recent submissions into full items\n- Submission resolution filters out dead/deleted items\n\n---\n\n### `hn_search_content`\n\nFull-text search via the Algolia HN Search API.\n\n- Filter by content type: `story`, `comment`, `ask_hn`, `show_hn`, `front_page`\n- Filter by author, date range (ISO 8601), and minimum points\n- Sort by relevance or date\n- Pagination with page/count controls\n\n## Features\n\nBuilt on [`@cyanheads/mcp-ts-core`](https://github.com/cyanheads/mcp-ts-core):\n\n- Declarative tool definitions — single file per tool, framework handles registration and validation\n- Unified error handling across all tools\n- Structured logging with request correlation\n- Runs locally (stdio/HTTP) from the same codebase\n\nHN-specific:\n\n- Server-level `instructions` orientation forwarded to LLM clients on `initialize` — item types, ID reuse across tools, case-sensitive usernames, and field sparsity expectations\n- Concurrent batch fetching with configurable parallelism for item resolution\n- HTML entity decoding and tag stripping with code block and link preservation\n- No API keys required — HN APIs are public\n\n## Getting Started\n\n### Public Hosted Instance\n\nA public instance is available at `https://hn.caseyjhand.com/mcp` — no installation required. Point any MCP client at it via Streamable HTTP:\n\n```json\n{\n \"mcpServers\": {\n \"hn-mcp-server\": {\n \"type\": \"streamable-http\",\n \"url\": \"https://hn.caseyjhand.com/mcp\"\n }\n }\n}\n```\n\n### Self-Hosted / Local\n\nAdd to your MCP client configuration file:\n\n```json\n{\n \"mcpServers\": {\n \"hn-mcp-server\": {\n \"type\": \"stdio\",\n \"command\": \"bunx\",\n \"args\": [\"@cyanheads/hn-mcp-server@latest\"],\n \"env\": {\n \"MCP_TRANSPORT_TYPE\": \"stdio\",\n \"MCP_LOG_LEVEL\": \"info\"\n }\n }\n }\n}\n```\n\nOr with npx (no Bun required):\n\n```json\n{\n \"mcpServers\": {\n \"hn-mcp-server\": {\n \"type\": \"stdio\",\n \"command\": \"npx\",\n \"args\": [\"-y\", \"@cyanheads/hn-mcp-server\"],\n \"env\": {\n \"MCP_TRANSPORT_TYPE\": \"stdio\",\n \"MCP_LOG_LEVEL\": \"info\"\n }\n }\n }\n}\n```\n\nOr with Docker:\n\n```json\n{\n \"mcpServers\": {\n \"hn-mcp-server\": {\n \"type\": \"stdio\",\n \"command\": \"docker\",\n \"args\": [\n \"run\", \"-i\", \"--rm\",\n \"-e\", \"MCP_TRANSPORT_TYPE=stdio\",\n \"ghcr.io/cyanheads/hn-mcp-server:latest\"\n ]\n }\n }\n}\n```\n\n### Prerequisites\n\n- [Bun v1.3.0](https://bun.sh/) or higher (or Node.js >= 24)\n\n### Installation\n\n```sh\ngit clone https://github.com/cyanheads/hn-mcp-server.git\ncd hn-mcp-server\nbun install\n```\n\n## Configuration\n\nAll configuration is via environment variables. No API keys required — HN APIs are public.\n\n| Variable | Description | Default |\n|:---------|:------------|:--------|\n| `HN_CONCURRENCY_LIMIT` | Max concurrent HTTP requests for batch item fetches (1–50). | `10` |\n| `MCP_TRANSPORT_TYPE` | Transport: `stdio` or `http`. | `stdio` |\n| `MCP_HTTP_PORT` | HTTP server port. | `3010` |\n| `MCP_HTTP_HOST` | HTTP server host. | `localhost` |\n| `MCP_LOG_LEVEL` | Log level: `debug`, `info`, `notice`, `warning`, `error`. | `info` |\n| `LOGS_DIR` | Directory for log files (Node.js only). | `/logs` |\n\n## Running the Server\n\n### Local Development\n\n```sh\nMCP_TRANSPORT_TYPE=stdio bun --watch src/index.ts # Dev mode (stdio, auto-reload)\nMCP_TRANSPORT_TYPE=http bun --watch src/index.ts # Dev mode (HTTP, auto-reload)\nbun run test # Run test suite\nbun run devcheck # Lint + format + typecheck + audit\n```\n\n### Production\n\n```sh\nbun run build\nbun run start:stdio # or start:http\n```\n\n### Docker\n\n```sh\ndocker build -t hn-mcp-server .\ndocker run -p 3010:3010 hn-mcp-server\n```\n\n## Project Structure\n\n| Directory | Purpose |\n|:----------|:--------|\n| `src/index.ts` | `createApp()` entry point. |\n| `src/config/` | Server-specific env var parsing with Zod. |\n| `src/services/hn/` | HN Firebase + Algolia API client and domain types. |\n| `src/mcp-server/tools/definitions/` | Tool definitions (`*.tool.ts`). |\n\n## Development Guide\n\nSee [`CLAUDE.md`](https://github.com/cyanheads/hn-mcp-server/blob/main/CLAUDE.md) for development guidelines and architectural rules. The short version:\n\n- Handlers throw, framework catches — no `try/catch` in tool logic\n- Use `ctx.log` for request-scoped logging\n- All tools are read-only — no auth scopes required\n\n## Contributing\n\nIssues and pull requests are welcome. Run checks before submitting:\n\n```sh\nbun run devcheck\nbun run test\n```\n\n## License\n\nApache-2.0 — see [LICENSE](https://github.com/cyanheads/hn-mcp-server/blob/main/LICENSE) for details.\n","changelogMarkdown","videoKey","requiredSecretsJson","publishedAt","priceCents","trialDays",0,"categoryDisplayName","Developer Tools","upstream",{"_95":96,"_97":98,"_99":100,"_101":102,"_103":104},"requiredSecrets",[],"tags",[],"assets",[],"stats",{"_93":80,"_94":80},"ratingAvg","reviewCount","topics",[19,105,106,107,108,109,110,111],"license","Apache-2.0","language","TypeScript","registryName","io.github.cyanheads/hn-mcp-server","homepage","https://www.npmjs.com/package/@cyanheads/hn-mcp-server","hacker-news","hackernews","hn","mcp","mcp-server","model-context-protocol","typescript","ENV",{"_114":115,"_116":117,"_118":119},"ENVIRONMENT","production","TURNSTILE_SITE_KEY","0x4AAAAAAB8-rEI2gNDf_QhU","SENTRY_DSN","https://45fd1229f78089d5c3ee78be128030e1@o4510583261757440.ingest.de.sentry.io/4510584253448272"]