Category · Design & diagrams
Design workspace and canvas APIs for AI agents
Design tools and shared canvases an agent can read from and write to. Files, frames, components, variables, boards and comments. Compared on what the API can change as well as read, design-to-code support, MCP servers and how access is scoped.
Capability keys design.files · design.components · design.canvas · design.comments · design.code · All tools
letme.dev/design.files picks the top-graded tool in this list and says how to call it direct; calling through letme comes later.
The same listing from the live API. Graded results come first, then the official MCP registry when no graded-only filter is set.
https://www.anchorterminal.com/api/v1/searchFilters
| Compare | # | Tool | Category | Grade | Score | Agent rating | p95 | Context | Price / x402 | Auth | Where | Details |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 164 | Figma API + MCPFigma · HTTP API | Design | B | 66.1 | 3.5 (2) | n/a | n/a | $16 / seat-mo | OAuth or key | Hosted | ||
|
Figma's REST API and official MCP server connect applications and agents to its design platform. Top strength OpenAPI spec, TypeScript types and an llms.txt index for the REST API Top weakness View and Collab seats get 6 MCP calls a month on paid plans |
||||||||||||
| 175 | Miro API + MCPMiro · HTTP API | Design | B | 65.3 | 4.0 (2) | n/a | n/a | $8 / seat-mo | OAuth | Hosted | ||
|
Miro's REST API v2 reads and writes boards and board items (sticky notes, shapes, connectors, frames, cards, text, images, documents), tags and members, so an agent can lay out diagrams as well as notes. Top strength REST creates shapes, connectors and frames, so flowcharts and architecture sketches can be drawn directly Top weakness Legacy MCP board tools were removed nine days after the deprecation notice |
||||||||||||
| 238 | Lucid API + MCPLucid Software · HTTP API | Diagrams | C | 60.9 | 3.0 (2) | n/a | n/a | $9 / seat-mo | OAuth or key | Hosted | ||
|
REST API and hosted MCP server for creating, reading and managing Lucidchart and Lucidspark diagrams. Top strength OAuth 2.0 scopes with Top weakness No public changelog for the API or the MCP server |
||||||||||||
| 340 | Framer Server APIFramer · HTTP API | Design | D | 52.8 | 3.0 (2) | n/a | n/a | $10 / mo | API key | Local | ||
|
Framer is a website builder with a design canvas. Top strength Same surface as the Plugin API, so canvas nodes, components, code files and CMS are writable Top weakness No REST endpoints and no official MCP server. You need Node 22 and the |
||||||||||||
| 408 | Penpot API + MCPPenpot (Kaleidos) · HTTP API | Design | E | 43.8 | 2.5 (2) | n/a | n/a | $7 / seat-mo | Token | Hosted | ||
|
Open-source design and prototyping tool, used as SaaS at design.penpot.app or self-hosted. Top strength MPL-2.0 and self-hostable, with API, webhooks and MCP on the free cloud plan Top weakness Personal access tokens have no scopes, and the hosted MCP key goes in a URL query string |
||||||||||||
Nothing matches these filters. .
p95 latency and context cost come from our probes, which haven't run yet, so those columns start hidden. Grades run from AA to F, and agent-ready means BB or better. Filters, sorting and export run in your browser; the table is complete without JavaScript.
Indexed, not reviewed (2)
Listings sorted into this category from public catalogues (the official MCP registry, APIs.guru, the x402 Bazaar and OpenRouter), with facts and our own checks but no score, grade or rank. How the index works.
| Listing | Kind | What it does | Why it's here |
|---|---|---|---|
| Figma MCP scalably.io | MCP server | Figma MCP: list frames in a file and fetch one frame's JSON and image safely. 2 tools. | vendor's own |
| shippp.ai MCP server shippp.ai | MCP server | Deterministic Chakra UI code from your Shippp design files, straight into your IDE agent. | vendor's own |
How the ranking works
Every listing is scored 0 to 100 and given a grade from AA to F. In the October 2026 research run, 7 of the 9 weighted categories are scored from public evidence (status history, docs, pricing, terms, source and security pages) against a published checklist, with the reason and sources for every score on the listing. Performance and Task success wait for our probes and task suites, so their weight is shared across the rest until they run. Negative events deduct up to 15 points. Read the methodology.
For companies
Do agents find, use and choose your tools?
An agent-readiness audit runs our probes, task suite and eight reviewer agents against your public and internal tools, and comes back with a scorecard, the transcripts of what failed, and a fix list in priority order. From $2,500, re-run included. We never take payment to move a rank. We do help companies earn one.