Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Give your AI deep fundamentals on US public companies — metrics, segments, peers. Free.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
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Works in Claude on the web, desktop and mobile:
https://api.opencapital.sh/mcpRun this in your terminal
claude mcp add --transport http opencapital https://api.opencapital.sh/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"opencapital": {
"url": "https://api.opencapital.sh/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.
Paste into .vscode/mcp.json in your project
{
"servers": {
"opencapital": {
"type": "http",
"url": "https://api.opencapital.sh/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:
https://api.opencapital.sh/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.
We have not read this server’s tool list yet; we check endpoints in rotation.
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 7, 2026
The registry name was verified against the domain opencapital.sh (the registry checks domain ownership)
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Not checked yet; we check endpoints in rotation
Not checked yet; we check endpoints in rotation
Not checked yet; we read the tool list when we check the endpoint
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 1 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.
The registry does not list a required key, though some servers ask you to sign in on first use.
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.
The GitHub repo last changed –, and the latest version (1.1.0) reached the registry 4 months ago.
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.
In the same category: Spec Driven Development, Remote Desktop Commander, MemberVault MCP by usefulapi
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
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
List courses; add users to courses, remove course access or delete users in MemberVault.
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.
Every US public company, sourced from SEC filings — now available to your AI assistant.
OpenCapital is a hosted Model Context Protocol (MCP) server that gives Claude, ChatGPT, Cursor, Codex, and any other MCP-capable client read-only access to what every US public company actually reports — fundamentals, segment breakdowns, peer comparisons, and earnings for thousands of US-listed equities (common shares and ADRs), all derived directly from SEC filings.
You don't run anything. The server is hosted on OpenCapital's infrastructure. You add one URL to your client, sign in once, and start asking.
https://api.opencapital.sh/mcp
The data is free, the workflow is paid. Every metric, segment, quarter, and filing reference is free to query. OpenCapital is an independent project — not affiliated with the SEC.
Pick your client below, or see the full step-by-step guides at [opencapital.sh/connect-ai](https://opencapital.sh/connect-ai).
OpenCapital, paste https://api.opencapital.sh/mcpFull guide: opencapital.sh/connect-ai/claude
claude mcp add --transport http opencapital https://api.opencapital.sh/mcp
Add --scope user to make it available in every project. Then run /mcp inside a session, select opencapital, and choose Authenticate.
Full guide: opencapital.sh/connect-ai/claude-code
OpenCapital, paste the URL, select OAuthFull guide: opencapital.sh/connect-ai/chatgpt
Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project):
{
"mcpServers": { "opencapital": { "url": "https://api.opencapital.sh/mcp" } } }
Then enable the server under Cursor Settings → Tools & MCP → Connect.
Full guide: opencapital.sh/connect-ai/cursor
codex mcp add opencapital --url https://api.opencapital.sh/mcp
codex mcp login opencapital
Or add to ~/.codex/config.toml:
[mcp_servers.opencapital]
url = "https://api.opencapital.sh/mcp"
Full guides: codex · codex-cli
Add a remote / custom MCP server over the Streamable HTTP transport, pointing at https://api.opencapital.sh/mcp. Most clients also accept the mcpServers JSON shape shown in the Cursor section above. The first call opens your browser to sign in and approve read-only access.
Full guide: opencapital.sh/connect-ai/other
The server ships with 14 read-only tools. You rarely call them by name — just ask in natural language and your client picks the right one.
| Tool | What it does |
|---|---|
stock_screener | Find and filter companies (sector, market cap, P/E, growth, FCF…). One row per company. |
stock_screener_filter_values | List valid values for a stock filter field (e.g. count of stocks per sector). |
metric_screener | Search financial metrics across companies. One row per (company × metric), with latest value, YoY/QoQ, and TTM change. |
metric_screener_filter_values | List valid values for a metric filter field. |
metric_detail | Definition, plain-language meaning, signal interpretation, parent/standard metric, and similar metrics across peers. |
metric_time_series | Full quarterly / annual / TTM history for one or more metrics on a single ticker. |
peer_time_series | One metric across up to 10 tickers — head-to-head peer comparisons. |
segment_time_series | Segment disaggregation (product, business, geography) for a line item, with history per segment. |
business_overview | What a company does, from its latest 10-K Item 1: segments, value chain, partnerships, named competitors. |
business_competitors | Ranked peer list — competitors named in filings, reverse mentions, and embedding-similar businesses. |
filing_text_search | Semantic + keyword search over the narrative prose of SEC filings (MD&A, risk factors, footnotes) — ranked passages with EDGAR links and cross-referenced metrics. |
portfolio_holdings | Your linked brokerage holdings, aggregated by ticker with weights and P&L. *(requires sign-in + linked account)* |
get_watchlist | Your watchlist with company metadata and nearest earnings event. *(requires sign-in)* |
update_watchlist | Add or remove tickers from your watchlist. *(requires sign-in)* |
More in examples/prompts.md.
The OpenCapital MCP server only exposes read-only stock research data — fundamentals, segments, and earnings derived from public SEC filings. Your assistant cannot place trades or modify any account state. The watchlist tools are the only write surface, and they only edit your own OpenCapital watchlist.
OAuth grants your AI client read-only access to OpenCapital's public stock research index (and, if you choose, your own watchlist and linked-brokerage holdings). See the Terms of Service and Privacy Policy.
The configuration snippets and documentation in this repository are MIT-licensed.
The OpenCapital MCP service they connect to is a hosted service governed by its Terms of Service — your use of the service, including the free tier, is subject to those terms, not this license. This repository does not contain the server's source code.