Cluing (Formerly Collabwriting): The AI Memory Bridge for Web Researchers
Most web clippers save links to die in a digital graveyard. Cluing approaches knowledge capture differently: instead of hoarding raw HTML or plain text bookmarks, it turns your browser highlights into a live context layer for modern LLMs.
Originally launched as Collabwriting on Product Hunt and AppSumo, the Serbian team behind the tool recently rebranded to Cluing. Despite the name change, the core value proposition remains intact: capture insights across websites, PDFs, newsletters, Kindle notes, and YouTube videos, then feed that structured context directly into AI models like Claude, Gemini, ChatGPT, or DeepSeek.
The Native MCP Advantage
What separates Cluing from traditional bookmarkers like Raindrop.io or pocket reading apps is its Model Context Protocol (MCP) server support. Instead of copying and pasting research snippets back and forth into prompt windows, local AI clients (such as Claude Desktop or Cursor) connect directly to your Cluing workspace. When you ask a question, the LLM reads straight from your saved clusters.
The browser extension handles multi-source capture well. On YouTube videos, it lets you annotate specific timestamps so you can jump back to the exact video frame later. When reading PDFs or web articles, every highlighted snippet preserves its original source link. If you share a research cluster with colleagues who do not have a Cluing account, they can still inspect the full text and click through to verify original sources.
Where the Pricing Model Hurts
Cluing offers a free Hobbyist plan, but the limits arrive quickly. Free accounts receive only 10 AI credits, 5 research clusters, 5 guest shares, and a restrictive 2MB file size cap on uploaded documents. If you try uploading a multi-page PDF report, you will hit that ceiling immediately.
Upgrading to the Professional tier costs $12 per month on annual billing (or 40% more if you pay monthly). Professional lifts the restrictions, giving you unlimited clusters, guests, documents, and AI credits alongside self-organizing chat sorting.
However, power users who want unmetered MCP API queries, early access to frontier models, and up to 150 live web search requests per message face a massive price jump: the Superhuman tier lands at an eye-watering $120 per month.
What Real Users Are Saying
Product Hunt reviewers frequently praise Cluing for its source-linked research trail, noting how easy it is to share verified snippets with clients who refuse to sign up for yet another account. On Reddit threads across r/Cluing and the legacy r/Collabwriting, content strategists and copywriters report replacing clunky bookmark setups because Cluing preserves contextual quotes alongside original URLs.
On the downside, early adopters from the AppSumo era express frustration over the rebrand. Searching for setup guides or community posts often requires toggling between Collabwriting and Cluing. Furthermore, some legacy lifetime deal holders reported confusion when features were reorganized into the newer tier structure.
Who Should Buy It (And Who Should Skip)
Pick Cluing if:
- You do heavy web research across articles, PDFs, and YouTube videos and need instant source attribution.
- You use Claude Desktop, Cursor, or custom AI workflows and want your saved research available via an MCP server without manual copy-pasting.
- You collaborate with external clients who need to view research boards without creating an account.
Skip Cluing if:
- You rely heavily on large PDF documents over 2MB while sticking strictly to free plans.
- You are a solo researcher on a budget who needs top-tier MCP scale without paying the $120 monthly Superhuman rate.
- You prefer single, all-in-one workspaces like Notion or Obsidian for long-form writing rather than a specialized web highlight layer.