
Unipile
Linked API
EnvoAPI
Reach MCP
Phantombuster
Unipile LinkedIn API
Expandi.io
The outreach API for your AI agents. Reach your prospects on LinkedIn, Email and WhatsApp through a single powerful API, built for AI agents and software.

DocRaptor
pdflayer
PDFCrowd
HTML PDF API
HTML2PDF.fr
Api2Pdf
Docamatic
Convert any HTML documents to high-fidelity PDF using a single POST request

Which is more popular?
Based on our record, PDFShift seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | linkupapi.com | pdfshift.io |
| Pricing | ||
| Company | Startup from France | 2018 |
| Listed in |
In their own words, as submitted to SaaSHub.


LinkupAPI is the outreach API for AI agents and software. Connect your users' LinkedIn, Gmail, Outlook and WhatsApp accounts, then send connection requests, messages, InMails, emails and WhatsApp messages from your product or agent, and get every reply back through real-time webhooks. What you...
A powerful, fast and high-fidelity HTML to PDF conversion API. Code examples and package ready for Node, Python and PHP developers. Advanced features are available, including watermarking and encryption!
What each product offers, as listed by its team.


An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
PDFShift is recommended for web developers, software engineers, and companies that require automated HTML to PDF conversion as part of their applications or websites. It is particularly suitable for those looking for an API-based solution to integrate easily into their existing workflows and systems.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing LinkupAPI and PDFShift.
LinkupAPI's answer
LinkupAPI is built for AI agents first. One API and an MCP server let Claude, ChatGPT, Gemini or Cursor run LinkedIn, email and WhatsApp outreach directly, across all of a team's accounts, and get every reply back in real time. It is also the only unified outreach API that caps the bill: per-account pricing with unlimited usage, and a flat $3,000 a month for unlimited accounts.
LinkupAPI's answer
Compared with Unipile and other per-account APIs, LinkupAPI charges the same per connected account up to a few hundred accounts ($55 for 10, then $5.50 to $4.50), but caps the bill at $3,000 a month for unlimited accounts, so it becomes cheaper from about 640 accounts. Compared with LinkedIn automation tools like PhantomBuster, Expandi or Waalaxy, it is an API: your product or AI agent decides who to contact, on which channel and when, instead of running fixed templates. Every account gets a dedicated IP, hosted login and account health alerts.
LinkupAPI's answer
SaaS companies and AI-agent builders that want to add LinkedIn, email and WhatsApp outreach to their product, GTM and sales teams running multichannel outreach from Claude or other AI agents across many accounts, recruiting platforms (ATS) that source and contact candidates, and agencies managing outreach for many clients.
Share your experience with using LinkupAPI and PDFShift. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking LinkupAPI since May 2026.
Https://pdfshift.io A simple API that converts HTML documents to PDF or images. - Source: Hacker News / about 2 months ago
PDFShift – A cloud API for converting HTML and URLs into PDFs, powered by a headless Chrome backend with support for modern CSS and JavaScript. - Source: dev.to / 9 months ago
When comparing LinkupAPI and PDFShift, you can also consider the following products.

Easy-Integration Messaging and Email for Software Publishers.
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As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more
Compare DocRaptor to LinkupAPI or PDFShift:

Secure LinkedIn API for controlling LinkedIn accounts or retrieving real-time data. Perfect for complex automations, advanced outreach, data collection, and more.
Compare Linked API to LinkupAPI or PDFShift:

Free, powerful HTML to PDF API supporting both URL and raw HTML conversion. Unlimited document size, lightning-fast and compatible PHP, Python, Ruby, etc.
Compare pdflayer to LinkupAPI or PDFShift:

Enrich contact and company records with EnvoAPI. Access LinkedIn data, find work emails, and verify addresses. Start with 100 free credits.
Compare EnvoAPI to LinkupAPI or PDFShift:

Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.
Compare PDFCrowd to LinkupAPI or PDFShift: