Notes and knowledge management

Sombra

A knowledge and context workspace that saves web pages and notes, organizes them into collections, and exposes distilled project context to AI assistants through MCP.

Published plans

Checked 22 Oct 2026

Free

$0 forever

free

Free tier

Pro

$12/seat/month

per seat · monthly

Pro (annual billing)

$120/seat/year billed annually

billed annually

Source: https://sombra.so/

A2A check

Checked 2026-10-16

Agent card: https://sombra.so/.well-known/agent-card.json (Sombra)

Endpoint: https://sombra.so/mcp

✕ Access: The agent card declares authentication, so a public caller needs credentials

· Protocol version: Not stated in the agent card

Skills listed: list_workspaces, browse_collections, read_collection, list_inbox, save_url, fetch_artifact, update_artifact, create_artifact, delete_artifact, list_archived, restore_artifact, search_artifacts

Automated check of the vendor's public A2A agent card and endpoint. The check reads the card and sends an empty JSON-RPC request; it delivers no message. Vendor quotes are copied word for word from the card or its documentation.

About this profile

Prices on this profile come from the latest check of the vendor’s pricing page (22 Oct 2026). A blank field means no price was captured, not that the product is free or unavailable. Add-ons and extras are listed separately and never used as the entry price.

Agentery does not establish integrations, security certifications or suitability beyond the description shown.