Spec Driven Development
by formulahendry
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer★ 440MITUpdated 14 months ago
Install
Capy
Overview
Description from the maker (original English)
Startup cap table: ownership, SAFEs, vesting and round modeling, plus drafts for admin approval.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi0 of 1 passedChecked from public information; code not scanned yet
- UsageiNot measured yet★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs in the cloud
- Transport: Streamable HTTP
- Category: Other
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 0 of 1 passed
- Runs on the maker’s server: what you ask it goes through their server.
- The registry lists no key to fill in.
You need
- Runs in the cloudNothing to install; it connects over the internet
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Works in Claude on the web, desktop and mobile:
- Open Settings → Connectors
- Press Add custom connector
- Paste the address below and press Add
- If it asks you to sign in, sign in with the maker
https://capyinc.com/mcpRun this in your terminal
claude mcp add --transport http capy https://capyinc.com/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"capy": {
"url": "https://capyinc.com/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"capy": {
"type": "http",
"url": "https://capyinc.com/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
- Open ChatGPT on the web → Settings → Connectors (Apps)
- Press Create or Add (some plans need Developer mode under Advanced first)
- Paste the address below, give it a name and save
- If it asks you to sign in, sign in with the maker
https://capyinc.com/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
We have not read this server’s tool list yet; we check endpoints in rotation.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026
- ! Caution
Maker matches the repo
The publisher (capyinc.com) is not the repo owner (zain); someone else may have listed it
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- … Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
- … Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Compared with others in Otheri
- More stars than 0% of the other 32520 servers in this category
- Published to the registry more recently than 76% of the other 32520 servers in this category
- Basic checks equal to or better than 32% of the other 32520 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Capy safe?
It passed 0 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed –, and the latest version (1.2.0) reached the registry 11 days ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, Toggl 2.0
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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Install
Toggl 2.0
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Install
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
Capy One thing done well: your cap table. Open-source cap table management for founders. Import from Pulley, manage equity, and take your data with you.
Use Capy · Self-host · AI apps · Contribute · Roadmap · Changelog
Why Capy
We were Pulley customers too. We wanted a small, understandable product we could keep running, with code we could inspect and data we could export. So we built Capy.
This repository contains the web app, backend functions, equity calculations, import/export code, and deployment configuration. The hosted service at capyinc.com runs this application. Self-hosted installations do not require a Capy subscription.
What you can do
| Workflow | Included |
|---|---|
| Bring your cap table | Preview a detailed Pulley Excel export before signup; review reconciliation and warnings before saving; import contacts separately. |
| Manage equity | Track stakeholders, shares, options, SAFEs, share classes, and equity plans. Record corrections, option exercises, and cancellations with activity history. |
| Understand ownership | Review fully diluted ownership, plan reserves, and supported monthly vesting schedules. Search, sort, and filter the cap table. |
| Model fundraising | Compare priced-round dilution with pre-money and post-money SAFEs, caps, and discounts; save scenarios. |
| Share with stakeholders | Give a stakeholder access to their own holdings through an invitation that can be claimed once and revoked. |
| Keep records | Store documents and save approval, offer, and communication drafts. |
| Take your data | Download the cap table as Excel and individual tables as CSV. |
| Use it from AI apps | Connect Claude, ChatGPT, Cursor, or another AI app over MCP to read the cap table and draft changes for an admin to apply. |
See fundraising and SAFE screens
Model your next round
Track your SAFEs
Screenshots use fictional companies and synthetic records.
Current scope
Capy is a young project with a working hosted product. We publish the implementation, checks, and limitations so you can evaluate it yourself.
The current release does not send documents for signature, move money, file taxes, provide 409A appraisals, or automate legal-document generation. Open Cap Table Format export is on the roadmap; exports today are Excel and CSV. Email verification/password recovery delivery and administrator-team invitations are not yet implemented.
Read supported workflows and boundaries and the Pulley import guide before migrating a company.
Use Capy from your AI app
Add https://capyinc.com/mcp to Claude, ChatGPT, Cursor, VS Code or another MCP client, sign in, and choose which companies the app can see. The app can read your cap table and, if you allow it, draft grants, exercises, cancellations, stakeholder updates and board consents. Nothing changes until an admin applies the draft in Capy. See connecting AI apps.
Run locally
Requirements: Bun 1.3.14, Node.js 24, and your own Convex project. Stripe and Cloudflare credentials are not needed for local development.
git clone https://github.com/zain/capy.gitcd capy bun install --frozen-lockfile cp apps/web/.env.example apps/web/.env.local bun run dev:setup
Create or select your own Convex project. Once the CLI has written packages/backend/.env.local, use a second terminal from the repository root to configure its development environment:
cd packages/backendbunx convex env set SITE_URL http://localhost:3001 bunx convex env set BETTER_AUTH_SECRET "$(openssl rand -hex 32)" bunx convex env set CAPY_SELF_HOSTED true cd ../..
The setup command waits for a successful push; if it reports missing environment variables, leave it running while setting them. Copy the deployment's .convex.cloud and .convex.site URLs into apps/web/.env.local, then:
bun run devOpen localhost:3001, create an account, and import a workbook or create an empty company. See the development guide for the full environment reference and troubleshooting.
Checks
bun run check # formatting, lint, production build, and TypeScriptbun run test # import/export, calculations, billing, and webhook tests bun audit # known dependency vulnerabilities
GitHub Actions runs these checks on pushes and pull requests, with a frozen lockfile and no production credentials. See CONTRIBUTING.md for the review and testing expectations.
Architecture
| Part | Technology |
|---|---|
| Web app | React, TanStack Start, TypeScript |
| Database and server functions | Convex |
| Authentication | Better Auth with the Convex adapter |
| Calculations and validation | Decimal.js and Zod |
| Excel import/export | ExcelJS |
| Tooling | Bun and Vite+ |
| Hosted web deployment | Cloudflare Workers |
apps/web/ Routes, product UI, authentication, imports, exports, and the MCP serverpackages/backend/ Convex schema, functions, permissions, and file storage packages/equity/ Shared equity calculations, validation, and modeling packages/ui/ Shared UI components packages/infra/ Cloudflare deployment command scripts/ Production build helper docs/ Setup, architecture, product scope, and migration guides
Read the architecture guide for data flow and access boundaries. The self-hosting guide covers deployment on your own Cloudflare and Convex accounts, updates, and backups. Running the Convex server itself on your infrastructure is not yet a tested deployment path for this repository.
Maintainers and support
Built by Zain and Sina. Zain maintains this repository; hello@capyinc.com reaches the team.
- Bugs and feature requests: open an issue.
- Setup and usage questions: Discussions.
- Private migration or account help: email us.
- Security vulnerabilities: use private vulnerability reporting, as described in SECURITY.md.
Please use synthetic examples in public issues. See SUPPORT.md for what to include in a report.
License and acknowledgments
Capy is licensed under GNU AGPL v3.0 (AGPL-3.0-only). Contributions use the same license. Dependency and asset licenses remain with their respective authors; see THIRD_PARTY_NOTICES.md.
Built with Better T Stack, TanStack, Convex, Better Auth, and shadcn/ui. Capy is an independent project and is not affiliated with Pulley or Carta.