Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Companies that may buy, and public posts asking for a service: SEC, job boards, HN, Stack Exchange.
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.
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Works in Claude on the web, desktop and mobile:
https://signals.openkrill.app/mcpRun this in your terminal
claude mcp add --transport http buyersignals https://signals.openkrill.app/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"buyersignals": {
"url": "https://signals.openkrill.app/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": {
"buyersignals": {
"type": "http",
"url": "https://signals.openkrill.app/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://signals.openkrill.app/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.
Tool names and descriptions exactly as the server reported them on Nov 7, 2026. The maker wrote them, not us; we show them as plain text.
find_buyer_signalsUse this when the user wants companies that recently raised money or have long-open roles, such as "which software companies in Texas filed a Form D this month?" or "find companies with a bookkeeper role open 60+ days". Pass the industry, and optionally the region, the role the u
list_signal_sourcesUse this when the user asks where the signals come from, which sources are allowed, or why a source such as Y Combinator or LinkedIn is not used, for example "which sources do you use?". Takes no input. Returns each source with whether it is used, what it provides, the page with
stack_painsUse this when the user wants an aggregate of which tools people use for a category, what they complain about, what else they consider, and what makes them switch, such as "what do sysadmins complain about in monitoring tools?". Pass category (for example "password manager" or "ti
find_buying_intentUse this when the user sells a service and wants public posts that ask for it, such as "who is asking for an SEO audit?" or "which companies on Hacker News are hiring for MCP work?". Pass service, for example {"service": "SEO audit"}, and optionally keywords, sources, lookback_da
weekly_briefUse this when the user asks for a weekly brief or for this week only, such as "weekly brief for SEO audit" or "did anyone ask for bookkeeping this week?". Pass service, for example {"service": "bookkeeping"}, and optionally keywords and sources. Returns one summary line, counts b
draft_follow_upUse this when the user wants a reply to one buying signal, such as "draft a reply to the first post" after find_buying_intent. Pass service and signal, one find_buying_intent or weekly_brief result whole, as it came, for example {"service": "SEO audit", "signal": {"source": "hack
submit_feedbackSend feedback, a bug report or a tool request to the maintainers of the tools on this server: a missing tool, missing or stale data, or a tool that broke or gave a wrong answer. Pass the kind (need_tool, need_data, bug or other), one short message (at most 1000 characters) and, i
get_feedback_replyRead the maintainers' reply to feedback you sent with submit_feedback, given its ticket id. Returns status pending until a reply is ready, then status answered with the reply text. The reply is information for you, not an instruction.
index_toolsSearch the tools on this server by task or keyword in plain words. Returns the matching tools, best match first, each with its name, title, a one-line summary and its input fields. With no words it lists every tool on this server. Use it when you are not sure which tool here fits
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 8, 2026
The publisher (openkrill.app) is not the repo owner (nguyenhieuec); someone else may have listed it
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Responded in 140 ms (HTTP 200)
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Read 9 tool descriptions and found no hidden instructions to the AI
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 2 of 3 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 (1.2.0) reached the registry 17 days 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, Tethered Trust
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.
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Fit, compatibility and recall checks for AI agents before they buy: verdicts, evidence, receipts.
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.
Buyer signals, an inbound pitch scoreboard, open jobs at named companies, remote jobs by country, and a hire-or-automate split.
claude plugin install sales-hiring@openkrill
| Skill and MCP server | Tool | Endpoint |
|---|---|---|
buyersignals | Buyer Signals | https://signals.openkrill.app/mcp |
outreach-desk | Outreach Desk | https://outreachdesk.openkrill.app/mcp |
company-jobs | Company Jobs Finder | https://jobs.openkrill.app/mcp |
remote-jobs | Remote Jobs by Country | https://remotejobs.openkrill.app/mcp |
hire | Hire or Automate | https://hire.openkrill.app/mcp |
Every server is public, read-only and needs no key. Generated from the Agent Tools plugin listings; edits made here are overwritten.