Spiral 4.0 Goes Agent-native

TL;DR: Spiral v4 just shipped with four major updates: a style engine that generates writing indistinguishable from your own 87 percent of the time, agent-native access via MCP, CLI, and API, team workspaces for writing in a shared voice, and a $10 price drop, bringing personal plans to start at $15 a month. Spiral will continue to be free for paid Every subscribers along with access to all our tools and content.

Today we’re announcing a number of updates to Spiral, the writing partner for you and your agent. Spiral is built by writers for writers, to help you from idea to line edit, matching your writing style throughout.

The highlights:

• With stylometry (or the study of writing styles), Spiral now sounds more like you. We’ve built a new Style Engine from the ground up, so Spiral computes your writing fingerprint and picks relevant samples for new drafts.
• Use Spiral wherever you do work. With a new MCP, plus our existing CLI and API, Spiral can step in if you’re underwhelmed by your agent’s writing output, or need good writing in any workflow.
• For teams, use Spiral to speak with one voice. Team workspaces let you share styles, prompts, knowledge, and now chats and drafts.
• And finally, we’ve given Spiral a new coat of paint and logo, designed by Daniel Rodrigues. The primary brand font is now Edgar, from Frere-Jones Type.