Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Compress, merge, convert, OCR, redact and sign PDFs, generate new ones, and read them with AI.
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.
FYNEPDF_API_KEY, AuthorizationValues marked secret are keys to your account. Never share them or paste them into a chat.
You need
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"fynepdf": {
"command": "npx",
"args": [
"-y",
"@fynepdf/mcp"
],
"env": {
"FYNEPDF_API_KEY": "your-value"
}
}
}
}Run this in your terminal
claude mcp add --transport http fynepdf https://api.fynepdf.com/mcp --header 'Authorization: your-value'claude mcp add fynepdf --env FYNEPDF_API_KEY=your-value -- npx -y @fynepdf/mcpFill in the empty values before running it.
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"fynepdf": {
"url": "https://api.fynepdf.com/mcp",
"headers": {
"Authorization": "your-value"
}
}
}
}Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"fynepdf": {
"command": "npx",
"args": [
"-y",
"@fynepdf/mcp"
],
"env": {
"FYNEPDF_API_KEY": "your-value"
}
}
}
}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": {
"fynepdf": {
"type": "http",
"url": "https://api.fynepdf.com/mcp",
"headers": {
"Authorization": "your-value"
}
}
}
}Paste into .vscode/mcp.json in your project
{
"servers": {
"fynepdf": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@fynepdf/mcp"
],
"env": {
"FYNEPDF_API_KEY": "your-value"
}
}
}
}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.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Your choice stays on this device in a cookie; no account needed.
Authorization secret HTTP headerThese 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.
search_docsSearch the FynePDF API and MCP documentation: actions, parameters, pricing, files, jobs and errors.
list_actionsEvery action FynePDF can run on a file (the REST API's job steps), with what it takes, what it makes and its price in API credits.
app_readyFynePDF's in-chat cards say once which host bridge they run in, for diagnosis. Not for conversation.
preview_fileThe first pages of a PDF as images, for FynePDF's result viewer. Not needed in conversation: use get_file for a link.
upload_fileBring a file into FynePDF. Shows a drop zone where the app supports it (Claude, ChatGPT, VS Code); it takes several files at once, e.g. for a merge, and reports their file_ids in order. With file_name and size_bytes it also returns a signed upload_url and a ready curl command, fo
import_file_from_urlFetch a PDF, Office file, image or EPUB from a public link into FynePDF and get its file_id.
get_fileA file's details and a fresh download link (valid 1 hour).
list_library_filesFiles saved in the person's FynePDF Library, newest first (pinned on top). Pass an id as library_file_id to any tool.
list_filesFiles on FynePDF from the last 24 hours, newest first: what the person dropped in the upload box, other uploads and imports, and results. Use it to find the file_id of a file the person says they uploaded, by its name.
save_to_libraryKeep a result in the person's FynePDF Library (fynepdf.com/library), so it isn't deleted after 24 hours.
merge_pdfsJoin PDFs into one, in the order given (file_ids, then files, then file_urls). Each part gets a bookmark with its name.
split_pdfSplit a PDF into parts by page ranges ("1-3", "4", "5-9") or into parts no bigger than max_part_mb. Returns a ZIP of the parts.
edit_pagesChange a PDF's pages (counted from 1): delete pages, keep only some pages, put pages in a new order (pages left out are dropped), or rotate all pages or a range.
stamp_pdfNumber the pages, stamp a text watermark on every page, or both in one go. Page number format uses %d twice, e.g. "Page %d of %d".
compress_pdfMake a PDF smaller: at a level (low, medium, high) or under a target size in MB. The result says whether the target was met.
protect_pdflock: add a password needed to open it. unlock: remove a password you know. flatten: burn form fields and annotations into the page so they can't be changed.
redact_pdfRemove text for real, not just cover it: name the exact text to remove, or describe it ("all names, emails and account numbers") and FynePDF finds it. The result is checked: if any of the text can still be found, nothing is returned. The original file is kept.
convert_from_pdfTurn a PDF into Word (.docx), Excel or CSV (tables found on the page), images (PNG/JPEG in a ZIP), Markdown, EPUB, PDF/A (archival), LaTeX, or a grayscale PDF. For tables read by AI (scans, bank statements), use extract_data.
convert_to_pdfMake a PDF from Word, Excel or PowerPoint files, images (one page each, in order), an EPUB, or a public web page (url). For content you write yourself, use create_pdf.
ocr_pdfAdd a text layer to scanned pages, so the text can be searched, copied and read by AI. Takes a scanned PDF or an image (a photo or scan as PNG, JPEG, TIFF, GIF, WebP or HEIC), which comes back as a searchable PDF. Reads 90 languages and finds the language itself; pass language on
create_pdfTurn Markdown or HTML you write into a well-set PDF: a report, invoice, letter, resume or plain document. Tables, headings, lists, images by URL and page breaks work; header, footer and page numbers are optional. For an invoice, resume or letter, prefer data (the fields, with tem
sign_pdfStamp a signature image (PNG or JPEG) on a page: at a named spot (bottom-right by default) or at x and y in points from the top-left corner.
ask_pdfAnswer a question from the document only, citing pages. Every quote is checked against the page text (verified: false marks one that couldn't be found).
summarize_pdfA plain summary and key points, each with the pages it comes from.
extract_dataRead structured data with AI and check it in code: invoice (fields, lines and totals, added up), statement (bank transactions, balances compared), tables (every table, cell by cell), or schema (your own JSON Schema). Output json returns the data here; excel or csv also makes a sp
smart_editDescribe the change ("remove the blank pages, number the rest and make it PDF/A"): FynePDF plans the steps from its actions, checks the plan, and runs it. With run false it only returns the plan.
get_jobCheck a job that was still running, and get its files when it's done. Waits up to 50 seconds by default.
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 fynepdf.com (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 500 ms (HTTP 200)
No sign-in needed
Read 27 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.
You need to fill in: FYNEPDF_API_KEY, Authorization
Either way works: install it on your computer or connect to the cloud version.
The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 6 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, ScienceShot science reference
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.
Sourced, citable answers in radiation and particle physics, photonics, electronics and quantum.
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.
FynePDF MCP server
Real PDF tools for Claude, ChatGPT, Cursor, VS Code and any other MCP client:
compress, merge, split, convert, OCR, redact, sign, create PDFs, and read them with AI.
https://api.fynepdf.com/mcp
FynePDF is a remote MCP server (Streamable HTTP). Add the URL to an assistant once, sign in with your FynePDF account, and it can work on PDFs itself: "compress this to under 5 MB", "redact every phone number", "turn these invoices into a spreadsheet".
This repository holds the server's registry entry, the local bridge (npx @fynepdf/mcp) and a Claude skill. The server itself runs at FynePDF; docs are at fynepdf.com/developers/docs/mcp.
| Assistant | How |
|---|---|
| Claude (web, desktop, mobile) | Settings, Connectors, Add custom connector, paste the URL. Guide |
| ChatGPT | Turn on Developer mode in Settings, Apps, then create an app with the URL. Guide |
| Cursor | Add to Cursor |
| VS Code | Add to VS Code |
| Claude Code | claude mcp add --transport http fynepdf https://api.fynepdf.com/mcp |
| Gemini CLI | gemini extensions install https://github.com/fynepdf/fynepdf-mcp |
Any client that speaks remote MCP works the same way: give it the URL, and it signs in with OAuth the first time a tool needs your account. Work then counts against your fynepdf.com plan, as on the website. Agents of your own can send an API key as the bearer token instead; that spends API credits.
npx @fynepdf/mcpA remote server can't see files on your computer. The bridge runs on your machine over stdio, passes everything through to the remote server with your API key, and adds two tools of its own:
upload_local_file: sends a file on this computer to FynePDF and returns its file_id.download_file: saves a result to your Downloads folder (or a path you name). It never replaces an existing file unless told to.Name the file by its path ("compress ~/Downloads/report.pdf"). A file attached to the chat goes to the assistant's own sandbox, not your computer, so the bridge can't read it.
{
"mcpServers": { "fynepdf": { "command": "npx", "args": ["-y", "@fynepdf/mcp"], "env": { "FYNEPDF_API_KEY": "fyne_live_..." } } } }
Get a key in the developer dashboard: test keys are free (results are watermarked), live keys get 250 free credits a month. More in packages/mcp.
| Tool | What it does |
|---|---|
upload_file | Bring a file in: a drop zone in Claude, ChatGPT and VS Code, or a signed upload link |
import_file_from_url | Fetch a PDF, Office file, image or EPUB from a public link |
get_file | A file's details and a fresh download link |
list_files | Recent files (last 24 hours), to find one the person just uploaded by name |
list_library_files, save_to_library | Use and keep files in your FynePDF Library |
merge_pdfs, split_pdf, edit_pages | Join, split, delete, keep, reorder and rotate pages |
stamp_pdf | Page numbers, a watermark, or both |
compress_pdf | Smaller at a level, or under a target size |
protect_pdf | Lock with a password, unlock, or flatten |
redact_pdf | Remove text for real: exact text, or described ("all names and emails") |
convert_from_pdf | To Word, Excel or CSV, images, Markdown, EPUB, PDF/A, LaTeX or grayscale |
convert_to_pdf | From Word, Excel, PowerPoint, images, EPUB or a web page |
ocr_pdf | Make a scan searchable |
create_pdf | A report, invoice, letter or resume from Markdown, HTML or data, with the figures checked |
sign_pdf | Stamp a signature image on a page |
ask_pdf, summarize_pdf | Answers and summaries citing pages, with quotes checked against the text |
extract_data | Invoices, statements and tables as data, added up in code |
smart_edit | Describe the change; FynePDF plans the steps and runs them |
get_job, search_docs, list_actions | Long jobs, the docs, and every action with its price |
Every tool returns a file_id, so the next tool works on the result without downloading and uploading again. In Claude and ChatGPT a result also shows as a card with a preview, Download and Save to Library.
Files live on FynePDF only while they're worked on: they're deleted after 24 hours unless you save them to your Library, and download links last 1 hour. Disconnect an assistant any time in the dashboard; it stops working at once. See the privacy policy.
server.json: the entry in the MCP Registry as com.fynepdf/fynepdf.skills/fynepdf: a Claude skill that teaches the tools' good habits.postman: a Postman collection for the REST API.Prefer code? The REST API has the same actions, with SDKs for Node and Python.
MIT