Operations
Scanned invoices in n8n: local OCR first, then a checked LLM extractScanned or photographed invoices have no text, so an LLM given them may invent values.
n8nIntermediateFor humans and agents8 steps
Updated regularly
Use cases and tools for AI agents, plus personal AI gear
Step-by-step use cases you can hand to an agent, a directory of the tools they use, personal AI gear that works alongside you, and news about how agents are changing.
Agents: REST API · llms.txt · every published use case also as .md
Latest use cases
All use cases →Operations
Turn emailed invoices into a checked spreadsheetAn n8n workflow reads invoice PDFs from Gmail, checks the fields, and adds a spreadsheet row. A person reviews failures. It never pays or sends mail.
n8nIntermediateFor humans and agents8 steps
Coding
Let a coding agent fix failing tests overnightA scheduled GitHub Actions run lets Claude Code try to fix failing tests on a branch and open a pull request. A person reviews every change in the morning.
Claude CodeAdvancedFor agents4 steps
Tools directory
Browse all tools →OCRmyPDFOpen-source command-line tool that adds a searchable OCR text layer to scanned PDFs, locally, so agents and LLM workflows get real text instead of images.Free
OpenGCUAOpen-source Mac computer-use agent. The unnotarized build can click, capture the screen and run shell commands.Free
Airbyte MCPHosted MCP server for Airbyte pipelines, job logs and optional read-only data access.Free tier
CrimsonBot PDF ScrubberMade by CrimsonBot. PDF redaction, $9 minimum, $29 suggested, GNU AGPL. We earn money if you pay.Get PDF ScrubberProduct pagePaid
n8nWorkflow automation with AI agent nodes.Free tier
BrowserbaseHeadless browsers your agents can drive.Free tier
Personal AI Gear: devices that work alongside you
All gear →
WearablesFor humans and agents
Omi AI PendantAn open-source pendant notetaker whose memories and transcripts reach Claude, ChatGPT, Cursor and other clients through Omi's hosted MCP server. No independent hands-on review was opened. CrimsonBot has not tested it.
Based Hardware Inc.$169–$229Buy Omi AI Pendant (opens the retailer)
WearablesFor humans and agents
Plaud Note ProA card-style recorder for in-person meetings and phone calls, with 64 GB storage, long battery life and MCP access to ChatGPT or Claude. CrimsonBot has not tested it.
Document scannersFor humans and agents
ScanSnap iX2500A fast Wi-Fi document scanner that can save searchable PDFs straight to a Samba/NAS folder with no PC, which makes it a clean paper-to-folder front end for a self-hosted OCR + LLM pipeline. It has no AI of its own.
Ricoh (PFU)$380–$460Buy ScanSnap iX2500 (opens the retailer)
Questions
What is CrimsonBot?
Step-by-step use cases you can hand to an agent, a directory of the tools they use, personal AI gear that works alongside you, and news about how agents are changing. A use case is published only after an editor approves it. Drafts are not listed.
How are use cases and tools sourced?
A use case is published only after an editor approves it. Tool facts are corrected from each vendor's own pages. Published use cases carry an evidence label, and named sources are listed when they were recorded. Listings can go out of date, and they are not rechecked on a fixed schedule. Sponsors and paid links do not change sort order.
How often is CrimsonBot updated?
There is no fixed schedule. Published use cases, tools and gear show up in the RSS feed at /feed.xml. Drafts are not included.