Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Read projects, invoices, hours and contacts; register hours, create tasks in Gripp.
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.
You need
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:
https://gripp.usefulapi.io/mcpRun this in your terminal
claude mcp add --transport http gripp https://gripp.usefulapi.io/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"gripp": {
"url": "https://gripp.usefulapi.io/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": {
"gripp": {
"type": "http",
"url": "https://gripp.usefulapi.io/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://gripp.usefulapi.io/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 6, 2026. The maker wrote them, not us; we show them as plain text.
gripp_list_companiesList companies in Gripp. Companies (customers, suppliers, prospects) with address, VAT/COC numbers, customer number and active flag. Supports filters, paging (max 250 per call) and ordering. Gripp API: company.get.
gripp_list_contactsList contacts in Gripp. Contact persons with name, e-mail, phone, function and the company id. Supports filters, paging (max 250 per call) and ordering. Gripp API: contact.get.
gripp_list_projectsList projects in Gripp. Projects with name, number, phase, company, account manager, dates, totals and archived flag. Supports filters, paging (max 250 per call) and ordering. Gripp API: project.get.
gripp_list_tasksList tasks in Gripp. Tasks with description, phase, deadline, estimated hours, company and completion state. Supports filters, paging (max 250 per call) and ordering. Gripp API: task.get.
gripp_list_hoursList hours in Gripp. Time registrations (hours) with date, amount, employee, task, status and description. Supports filters, paging (max 250 per call) and ordering. Gripp API: hour.get.
gripp_list_invoicesList invoices in Gripp. Sales invoices with number, date, status, company, totals, amount paid and open amount. Supports filters, paging (max 250 per call) and ordering. Gripp API: invoice.get.
gripp_list_offersList offers in Gripp. Quotes (offers) with number, name, date, phase, company, totals and acceptance status. Supports filters, paging (max 250 per call) and ordering. Gripp API: offer.get.
gripp_list_employeesList employees in Gripp. Employees with name, e-mail, function, department, role and active flag. Supports filters, paging (max 250 per call) and ordering. Gripp API: employee.get.
gripp_list_tagsList tags in Gripp. Tags that Gripp uses to label companies, contacts, projects and invoices. Supports filters, paging (max 250 per call) and ordering. Gripp API: tag.get.
gripp_get_recordGet one Gripp record by its numeric id, for companies, contacts, projects, tasks, hours, invoices, offers, employees or invoice lines. Gripp API: .getone.
gripp_list_invoice_linesList invoice lines (description, amount, price, VAT) for one invoice id. Use this to see what an invoice contains. Gripp API: invoiceline.get.
gripp_create_hourWRITE: register hours on a project (and optionally a task) in Gripp. Creates a new time registration each call; a repeat creates a duplicate. Status CONCEPT keeps it editable. Gripp API: hour.create.
gripp_create_taskWRITE: create a task in Gripp. Creates a new task each call; a repeat creates a duplicate. Gripp API: task.create.
gripp_create_contactWRITE: create a contact person on a company in Gripp. Creates a new contact each call; a repeat creates a duplicate. Gripp API: contact.create.
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
The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Responded in 114 ms (HTTP 200)
No sign-in needed
Read 14 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 3 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 (1.5.3) reached the registry yesterday.
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, LickityClick
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.
Create, edit and track LickityClick short links, campaigns and click stats from your AI assistant.
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.
Use your Gripp account from Claude, Cursor, or any MCP client. Read companies, contacts, projects, tasks, hours, invoices, offers and employees, register hours, and create tasks and contacts. Hosted, no local install: connect with your own credentials.
Live endpoint: https://gripp.usefulapi.io/mcp · Homepage: https://usefulapi.io
https://gripp.usefulapi.io/mcp.claude mcp add --transport http gripp https://gripp.usefulapi.io/mcp, then run /mcp to log in.{
"mcpServers": { "gripp": { "url": "https://gripp.usefulapi.io/mcp" } } }
Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your Gripp credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/gripp/
On first connect you provide a Gripp API key (Gripp → Settings → API keys; you must be an application administrator). The server validates it and stores it per user. No keys go in config files.
| Tool | Type | What it does |
|---|---|---|
gripp_list_companies | read | List companies |
gripp_list_contacts | read | List contacts |
gripp_list_projects | read | List projects |
gripp_list_tasks | read | List tasks |
gripp_list_hours | read | List hours |
gripp_list_invoices | read | List invoices |
gripp_list_offers | read | List offers |
gripp_list_employees | read | List employees |
gripp_list_tags | read | List tags |
gripp_get_record | read | Get one record |
gripp_list_invoice_lines | read | List invoice lines |
gripp_create_hour | write | Register hours |
gripp_create_task | write | Create a task |
gripp_create_contact | write | Create a contact |
gripp_usage_status | meta | Usage status (free-tier meter) |
gripp_request_feature | meta | Request a missing feature |
gripp_upgrade | meta | Upgrade to Pro or Pro+ |
gripp_cancel_subscription | meta | Cancel the Pro subscription |
read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Pro (per user) | $9/mo or $90/yr (2 months free) | Unlimited* |
\*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to support@usefulapi.io.
Pro covers this server only. Subscribe with gripp_upgrade (it returns a Stripe Checkout link). Cancel any time with gripp_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running gripp_upgrade before then undoes the cancel. Or write to support@usefulapi.io.
MIT — see LICENSE. Documentation only; the server is hosted.