MCP Bluesky Stock Sentiment

MCP Bluesky Stock Sentiment Analyze recent Bluesky posts about stocks and return a concise sentiment summary using Cloudflare Workers AI — exposed as an MCP server you can connect to from any MCP‑compatible client. What you get - Cloudflare Worker with Hono, serving an MCP endpoint at `/mcp`. - Tool: `analyze_stock_posts` — searches recent Bluesky posts, filters for stock‑related content, and runs sentiment via `@cf/huggingface/distilbert-sst-2-int8`. - Simple JSON metadata on `/` for quick health checks. Quickstart - Prereqs: Node 18+, Cloudflare account, Wrangler auth (`npx wrangler login`). - Install: `npm install` - Dev: `npm run dev` (serves on `http://localhost:8787`) - Deploy: `npm run deploy` - Typegen: `npm run cf-typegen` (optional; syncs Worker bindings types) MCP Endpoint - Local: `http://localhost:8787/mcp` - Prod: `<your-workers-subdomain>.workers.dev/mcp` - Server name: `bluesky-stock-sentiment` (see `src/index.ts`). Available Tool - `analyze_stock_posts` - Input: `{ count?: number }` — number of posts to analyze (1–10, default 2) - Behavior: Fetches recent posts from Bluesky’s public search API, filters to stock‑related text, analyzes each with Workers AI, and returns a textual summary (totals, percentages, average confidence, and per‑post details with author, likes, reposts, timestamp, and URI). Config and Extensibility - Sentiment model: `src/lib/sentiment.ts` - Default: `@cf/huggingface/distilbert-sst-2-int8` - Swap to any Workers AI text‑classification model if you prefer. - Stock filtering: `src/lib/stock-filter.ts` - Update the keyword list to fine‑tune what counts as a “stock post”. - Bluesky search: `src/lib/bluesky-api.ts` - Uses the public unauthenticated search API and basic heuristics to avoid duplicates. - Firehose (optional): `src/lib/firehose.ts` - Example collector that connects to Bluesky’s firehose via WebSocket and filters in real time. This is not wired into the Worker route; use it as a reference for server/runtime environments that support outbound WebSocket connections. Endpoints - `GET /` — returns service metadata (name, version, description, available tools). - `ALL /mcp` — MCP over HTTP transport (via `mcp-lite`). Point your MCP client here. Notes - You must bind Workers AI in Wrangler (already configured in `wrangler.jsonc` under `ai.binding = "AI"`). - Bluesky’s public search API may rate‑limit or change behavior; the tool is resilient but results vary over time. Project Layout - `src/index.ts` — Hono app, MCP server wiring, routes. - `src/mcp/tools.ts` — `analyze_stock_posts` tool registration and handler. - `src/lib/*` — sentiment analysis, filtering, Bluesky integrations. License - Provided as‑is; add a license if you plan to distribute.