ChatStack
Actively maintained
- Is it safe? We have not read the data policy of ChatStack yet. Read it on the official site before you upload anything.chatstack.app ↗
- Is it free? We have not read the prices of ChatStack yet; they are next in our queue. Until then, the official site has them.chatstack.app ↗
- What else does this?
Emergentfree
Zeplinfree
21stfreeSee ↓
not read yet
Use
- For
- Product owners and dev teams scoping an app idea before build, especially those using Cursor or Claude Code
- Activity
- Actively maintainedsite updated 5 days ago
- Used for
- estimate total development cost for an app idea
- generate a structured PRD with user stories
- trim MVP scope by removing user stories
- On the web since 2023, older than 81% of its shelfINITE Atlas
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantschatstack.app ↗
Price not read
- MCP serverapp.chatstack/app-cost-estimatorverified in the MCP registry
- Stateanswers, 5 toolschecked 2026-10-29
- Address to connectmcp.chatstack.app/mcp
- OpenAPI spec6 pathsthe spec ↗
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
Figure and bar: visits/mo, estimate · year: online since
- #1
Emergent
Generates full-stack web and mobile applications from natural language descriptions.
38.9kActiveFrom $17/mo - #2
Zeplin
Documents designs and tracks changes to deliver specifications to developers without using design tools.
36.5kMaintainedFrom $12/user/mo2014 - #3
21stMCP · sign-in
Browse and copy 12,000 React components, templates, and themes as AI-ready prompts into your project.
13.1kActiveFrom $6/mo - #4
CavemanMCP · open
Reduces AI agent token costs through model routing, auto-caching, prompt compression, and waste detection.
9.6kActiveFrom $300/mo - #5
ideavo.ai
Generates full-stack web and mobile applications from natural language descriptions, including backend, database, and deployment.
1.3kActiveFrom $20/mo2025
Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
No notes yet. What do you use ChatStack for?
Sign in to leave a noteWhat is ChatStack?
Turns a described app idea into an indicative development cost, MVP scope and a structured requirements document for coding tools. It is listed in the Atlas under Developer tools.
Who is ChatStack for?
Product owners and dev teams scoping an app idea before build, especially those using Cursor or Claude Code
Is ChatStack free?
No. Its pricing page showed no free plan on 2026-10-29.
Is ChatStack still maintained?
Actively maintained: site updated 5 days ago.
What are alternatives to ChatStack?
In Developer tools, by use: Emergent, Zeplin, 21st, Caveman, ideavo.ai.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
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