Self-hosted SQLite stack (CLI+MCP+API+UI) tracks AI visibility over time, investigates search/traffic changes, and lets coding agents act on evidence (publish, submit, measure)—BYOK, open-source alternative to closed AEO tools. This workflow is listed under aeo, seo, mcp, monetization, agent-first.
Show HN (Oct 16): Things to Do ships REST + HTTP MCP so agents query SF Bay Area shows, pop-ups, concerts, and festivals in plain language (`claude mcp add --transport http thingstodo https://api.thingstodoapi.com/mcp`) instead of slow web search or ad-hoc scraping; NYC/LA listed as soon.
Show HN: jevcrawl (Apache-2.0 MCP + CLI) crawls for a goal and returns only relevant passages—small Jev model picks links/passages instead of Claude in the loop; README claims ~2× answer-page hit rate vs Crawl4AI and ~10× cheaper per answer than LLM-driven crawl; tools: crawl/scrape/map.
houtini-ai/seo-audit (Show HN Oct 6) packages a full technical SEO audit behind MCP so Claude Code/Cursor-class agents can pull crawl, indexability, and on-page findings as tools instead of pasting reports. Practical pattern: wrap an existing specialist CLI/service as MCP so agent workflows stay in one conversation.
GitHub BenniAlencar/agent-cyber-sentinel (Apache-2.0): Tier-0 runtime defense for autonomous agents and MCP servers—prompt-injection/jailbreak firewall, secret leak interceptor with Shannon-entropy redaction, SSRF metadata blocking, tool-call sanitization, and tamper-evident Proof-of-Defense (POD-9) envelopes. Framed as the missing security layer when agents take real actions; CI + pytest suite in-repo.