Evermuse + CoreStory: Build the Right Thing, and Build It Right
Evermuse and CoreStory are partnering to give product and engineering teams (and their AI agents) both halves of the truth: what customers need, and how their code actually works.

Every team that ships software lives with a quiet gap. On one side is what customers actually need, buried in sales calls, interviews, support threads, and feature requests. On the other is how the system actually works: the architecture, the edge cases, the decisions nobody wrote down. AI coding agents have made that gap louder, not quieter. An agent will confidently build the wrong thing, or build the right thing in a way that breaks three things you forgot existed.
That’s why we’re partnering with CoreStory.
Two context layers, pointed in opposite directions
CoreStory is a code intelligence platform: a persistent context layer that builds a living understanding of how your codebase actually behaves and serves it to humans and AI wherever product and engineering work happens. Instead of an agent guessing at your architecture, it can query CoreStory for grounded answers about behavior, intent, and impact before it writes a single line.
Evermuse is the same idea, pointed the other way. We turn your customer conversations into an always-current picture of what your customers need: searchable evidence, verbatim quotes, competitor intel, and a live, prioritized roadmap your AI can actually reason over.
Put plainly: CoreStory is the context layer for your system. Evermuse is the context layer for your customer. Most teams have neither in a form an AI can use. Now you can have both.
What the partnership unlocks
Here’s where it gets good. Both Evermuse and CoreStory speak MCP, so the same agent (Claude Code, Cursor, Codex, whatever you run) can hold both contexts at once. Picture planning a feature where your agent pulls the three loudest customer pain points from Evermuse, then asks CoreStory which parts of the codebase a fix would touch and what might break. Intent and implementation, in a single pass. You stop choosing between building the right thing and building it right.
As part of the partnership, the Evermuse MCP is now available to CoreStory customers through CoreStory’s MCP partner directory, and CoreStory is available to Evermuse customers through ours. One connection on each side, and your agents inherit both layers of context.
Both halves of the truth
“Great software starts with understanding, of the code and of the customer. Pairing CoreStory’s code intelligence with Evermuse’s customer evidence gives teams and their agents a complete picture for the first time. We’re excited to put it in front of our customers.”
— Melissa Lyons, Global Director of Channel Sales @ CoreStory
The result is fewer round-trips, fewer regressions, and a lot less guessing, from your team and from your AI.
Learn more about Evermuse at www.evermuse.com and about CoreStory at www.corestory.ai.