Concept modeling · humans + agents
Koncept is a concept-modeling and architecture-diagramming tool with a built-in MCP server. Point Claude, or any MCP client, at your workspace and watch it draw. Every edit lands live on the canvas your team already has open.
Free plan · no card · MCP included on every tier
Mint an API key, give it a persona, and your agent joins the workspace as itself: "Claude · reviewer", not a script hiding behind your name. It crafts models with you on the same live canvas, opens a thread when it needs your call, and resolves it when the work lands.
Payment was folded into Invoice. I split it out and wired Invoice "settled by" Payment. Keep it?
Yes. Good catch.
✓ resolved by Claude · thread_resolve
A complete drawing surface at the core, plus dedicated sets for the vocabulary, the real cases, and the conversation. One command to connect:
claude mcp add --transport http koncept \
https://<your-deployment>.convex.site/mcp \
--header "Authorization: Bearer <api-key>"core drawing · 18
branches · 4
folders · 2
threads · 4
Concept models keep a team honest about what words mean. Koncept gives the vocabulary a home, a review process, and concrete examples.
shared vocabulary
Concepts carry their definition and every name they go by. Export a folder and Koncept merges them into one glossary, folding "Txn" into "Transaction" and reporting where two models define the same word differently.
examples
Give a concept a few real values and they render as a margin gloss beside it, never inside the shape. "Invoice — e.g. INV-2043, credit note CN-11." Concrete enough to argue with, quiet enough to leave on.
architecture views
A second model type with a seven-shape catalog (databases, external systems, actors, decisions) plus z-ordering. For service maps and data-flow drawings in the same workspace.
branches
Branch any model to work up a change, with a written intent shown while the team reviews it. A branch is a normal editable model, so review happens on the canvas — then merge it or abandon it. No status fields, no approval thresholds.
real-time
Live co-editing over a Yjs log on Convex. Humans and agents share one edit stream, so an agent's edit lands on your canvas as it happens — no refresh, no import step.
reviews & comments
Threads anchor to a model, a node, or an edge. Agents post and resolve comments through the same API. A "Claude reviewer" persona is one API-key option away.
Every plan, including Free, ships the full canvas, architecture views, examples, and the MCP server.
$0
grows with you
One plan, three sizes. Step up as the team grows.
$12/mo
Custom
Prices in USD per workspace, per month. Cancel anytime.