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Best LinkedIn API in 2026
Most comparisons on this topic rank a dozen products against each other as if they did the same job. They do not. Half of them can read LinkedIn data and cannot send anything at all. Picking across that line is the mistake that gets accounts restricted or budgets burned, so this page sorts the market by what each category can actually do before ranking anything inside it.
Table of Contents
UNDERSTAND THE MARKET
THE OPTIONS
BUILD WITH UNIPILE
The short answer
Build on Unipile for free
If your product needs to send on LinkedIn, messages, invitations, follow-ups, you need an account-based API acting on an account your user connects. If you only need to read public profile or company data at volume, you need a data API, and an account-based API is the wrong purchase. Unipile is in the first category, and covers LinkedIn plus WhatsApp, Instagram, Telegram, email and calendars on one contract, from 49 EUR per month with unlimited API calls.
Scope and disclosure
Unipile is our own product, which is exactly why its row is the one to check hardest. Everything stated about other vendors was read from their own public pages in August 2026, and the criteria are set out before the ranking rather than after it. This page covers APIs, not operator dashboards a person logs into. Vendors change their pricing and their claims without notice, so verify before you build. Our own numbers are on the pricing page.
The four categories, and what each one cannot do
Before any ranking, sort the market. Four categories sit behind the phrase "LinkedIn API", and the boundary that matters is not price or coverage, it is whether the thing can perform an authenticated action on LinkedIn or only read data. Cross that boundary by accident and you either burn accounts or overpay by an order of magnitude.
Category 1
The official LinkedIn API
LinkedIn documents products for sign-in, post sharing, ads, Sales Navigator, talent and learning. The ones open to any developer cover authentication and publishing. Invitation and message endpoints exist in the documentation but sit inside a closed partner program, and automated sending is barred even for approved partners.
Cannot send, for practical purposes
Category 2
Account-based APIs
Act through a LinkedIn account your end user connects and authenticates. This is the only category that can send a connection request or a message, and it returns live data rather than a crawl. Priced per connected account. Unipile, OutX, Linked API and gtm-api sit here.
Can read and send
Category 3
Scraper APIs
Fetch public pages at request time and return parsed fields. Apify, Scrapingdog and the marketplace scrapers live here. Priced per request or per compute unit. Some ask you to paste your own cookies, which quietly moves your account risk back onto you.
Read only
Category 4
Dataset providers
Sell a pre-built database of profiles and companies. Bright Data, Coresignal and People Data Labs sit here, with Coresignal listing plans from 49 dollars a month in August 2026. Coverage is broad, freshness is whatever the last crawl produced, and no LinkedIn account is involved at any point.
Read only, and not live
The expensive mix-up
The two failure modes are symmetrical. Running a scraper or a cookie-based tool to power outreach puts an account in front of a detection system it was never designed to survive. Wiring an account-based API to pull a one-off dataset means paying a per-account subscription for something a per-request scraper would have done once for a few dollars. Decide which side of the read-and-send line you are on before you compare anything.
Head-to-head: what each option actually does
Read from the vendors' own public pages in August 2026. Where a vendor publishes nothing on an axis, the cell says so rather than guessing. Prices are the entry point advertised, not the price you will pay at volume.
| Option | Category | Can send | Account model | Channels | Pricing |
|---|---|---|---|---|---|
| Unipile | Account-based | Yes | Account your user connects, hosted auth | LinkedIn, WhatsApp, Instagram, Telegram, email, calendars | From 49 EUR/mo, then 5.00 to 3.00 EUR per account, unlimited calls |
| Linked API | Account-based | Yes | Dedicated cloud browser per account | LinkedIn only | 49 EUR and 74 EUR per seat per month |
| gtm-api | Account-based | Yes | Owned account, isolated session and proxy | LinkedIn only, others announced | From 39 USD per account, down to 10 USD at volume |
| OutX | Account-based | Yes | Chrome extension on the operator's machine | LinkedIn signals | Free, then 99, 249 and 999 USD per month |
| PhantomBuster | Operator tool with an API | Yes | Cookie-based | Multi-platform | See their pricing page |
| Official LinkedIn API | Official | No, in practice | OAuth, partner approval | Free, access is the cost | |
| Apify | Scraper marketplace | No | Varies, some actors need your cookies | Data extraction | Usage-based |
| Coresignal | Dataset | No | None, API key only | Profile, company, jobs data | From 49 USD per month |
| Bright Data | Scraper and dataset | No | None | Data extraction | Volume-based, quote |
The APIs that can actually send
If your product performs actions on LinkedIn, this is the whole shortlist. They differ on three things that matter more than feature lists: where the automation runs, how many channels ride on the same contract, and whether the account belongs to your user or to a provider.
Where the automation runs is the real differentiator
A hosted session per connected account. The account is isolated, nothing runs on your customer's machine, and the integration keeps working when their laptop is closed. This is what Unipile and Linked API do, and it is the only model that supports unattended server-side work.
A browser extension on the operator's machine. Nothing of the account leaves the user's browser, which is a genuine privacy argument, but the extension has to stay alive. OutX documents a 48-hour heartbeat, after which the API stops answering. That rules out anything running on a schedule.
Cookies you paste in. The oldest pattern and the most fragile. A session cookie handed to a third party expires, gets invalidated on password change, and offers no isolation at all.
How many channels ride on the same integration
This is where the shortlist separates fastest. Linked API, gtm-api and OutX are LinkedIn-only products. A CRM or an applicant tracking system that starts with LinkedIn almost always needs the user's mailbox next, then their calendar, then WhatsApp for the markets where that is the channel. On a LinkedIn-only API each of those is a new vendor, a new auth flow and a new data shape. Unipile's LinkedIn API sits on the same contract as email, calendars and four messaging channels, so adding one later is a scope change rather than a second integration.
Whose account is it
Some of this market is adjacent to renting LinkedIn profiles from a provider. That solves the supply of accounts and creates a different problem: the identity is not yours, a restriction is not yours to appeal, and the arrangement is hard to explain to an enterprise buyer. Products built on accounts the end user owns and connects themselves avoid the question entirely, and that is the model behind Unipile, Linked API and the official API alike.
The data APIs, and when they are the right answer
If you are reading and never sending, this is your category and an account-based API would be a poor purchase. Scraper APIs fetch pages at request time and bill per request, which suits enrichment on demand. Dataset providers sell a pre-built database and suit bulk analysis where freshness matters less than coverage. Coresignal lists plans from 49 dollars a month and credits at fractions of a cent, Apify bills the compute its actors burn, and Bright Data quotes on volume.
Two cautions. Several marketplace actors ask you to paste your own LinkedIn cookies, which hands your account risk to a script you did not write. And one widely used actor page warns against pulling more than a few hundred profiles a day, which tells you the safety story is not solved just because no account was connected on paper.
Do not use a data API for outreach
A scraper cannot send a connection request or a message. Teams that try to bridge the gap end up automating a real logged-in browser next to their scraper, which is the exact pattern LinkedIn's detection is built for. If the product sends, buy something that sends. Our LinkedIn API guide sets out what the official endpoints do and do not allow.
When Unipile is not the right choice
Every page you will read on this topic ranks its own author first and finds no use case it loses. That is not useful to anyone choosing, so here is ours, plainly.
You need bulk profile data and never send
Enriching a million records, building a market map, training a model on firmographics. Unipile is billed per connected account and that model makes no sense when there is no account and no message. Use a dataset provider such as Coresignal or Bright Data, or a per-request scraper.
You want a dashboard, not an API
If a person is going to log in and drive campaigns by hand, you want an operator tool, not infrastructure. Unipile has no campaign UI and is not trying to have one. An operator product will get you running this week with nothing to build.
You need one LinkedIn account and nothing else, ever
A single seat, LinkedIn only, no email, no calendar, no second channel on the roadmap. The breadth you are paying for is breadth you will not use, and a LinkedIn-only vendor may fit better. Our advantage shows up from the second channel onward.
You want a published ban-rate figure
Some vendors advertise numbers such as zero bans or a percentage over a window. We do not publish one, because a rate without a stated method, window and sample is not a measurement. If a number on a page is what decides your purchase, we will not have it. Ask any vendor for the method behind theirs.
The question nobody asks until it is too late
In January 2025 LinkedIn filed suit against Proxycurl. By July 2025 Proxycurl had announced its shutdown. Every comparison on this subject now opens with that story, and then fails to draw the conclusion that matters for an architecture decision.
When a data reseller disappears, the integration built on it stops, and the data was never yours to keep. When an account-based provider disappears, the accounts still belong to your users, the message history is still in their inboxes, and what you have lost is a connector rather than an asset. That difference should weigh on the decision at least as much as the price per call.
Build on accounts your users own. Hosted authentication, one schema across LinkedIn, email, calendars and four messaging channels, unlimited API calls. Connect your first account without a credit card.
Start building
Which one fits what you are building
Match the tool to the job rather than to the ranking.
| If you are | Pick | Why |
|---|---|---|
| Adding LinkedIn to a CRM or an ATS | Unipile | The mailbox and calendar come on the same contract, which is where these products go next |
| Building an AI agent that acts | Unipile | Typed tools and an MCP server, on accounts the user connected |
| Running multichannel sequences | Unipile | LinkedIn, WhatsApp, Instagram, Telegram and email behind one schema |
| Shipping a LinkedIn-only feature, one seat | Linked API | Smaller surface, clear per-seat price at 49 or 74 EUR |
| Capturing buying signals, attended | OutX | Signal listening on top of the API, if the extension stays live |
| Enriching records at volume | A dataset provider | Per-record economics, no account involved, no ban surface |
| Pulling a public dataset once | A scraper | Cheapest for a one-off, and it cannot send |
| Only publishing posts or signing users in | The official API | Free, supported, and enough for exactly those two jobs |
Unipile, and what it is for
Unipile is a unified API for software publishers whose users need their own accounts inside the product. It is used inside CRMs, applicant tracking systems, sales-engagement tools and AI agents. What follows is what it does, with the limits stated above still standing.
One contract, nine live channels. LinkedIn, WhatsApp, Instagram and Telegram messaging, Gmail, Outlook and IMAP email, Google and Outlook calendars. A Gmail or Outlook connection covers email and calendar and is billed as a single account.
Hosted authentication. Your users connect their own accounts through a wizard you do not have to build, and you never hold their password.
Published pricing, unlimited calls. From 49 EUR a month for up to 10 linked accounts, then 5.00 EUR per account down to 3.00 EUR at volume, with no per-message or per-request fee. The full table is on the pricing page.
An MCP server, so an agent can read and send through typed tools rather than driving a browser. See the LinkedIn MCP guide and the AI agent use case.
SOC 2 certified, with compliance confirmation effective 19 October 2025, and GDPR handling as a processor for the data you run through the API.
How Unipile operates
An independent technical intermediary
Unipile acts on behalf of each authenticated user, inside workflows that user initiates and controls. Credentials are never shared between customers, and there is no parallel archive of platform content outside the scope of that user's session. Unipile is not affiliated with, endorsed by, or sponsored by LinkedIn. Volume, content and cadence remain a customer-side decision, and each platform's own limits are relayed rather than worked around.
If you want the technical detail before deciding, the LinkedIn API integration guide covers what the official endpoints allow, what an account-based API adds and how the connection flow works. The LinkedIn API product page lists the endpoints themselves. If your comparison is really about email and calendar rather than LinkedIn, the Nylas comparison is the closer read.
Best LinkedIn API, your questions answered
Category, capability, cost and safety, in the order buyers actually ask them.
It depends on whether your product sends or only reads. If it sends messages or connection requests, you need an account-based API acting on an account your user connects, and the shortlist is short: Unipile, Linked API, gtm-api and OutX. If you only read profile or company data at volume, a dataset provider or a scraper is cheaper and carries no account risk. Ranking those two groups against each other, as most comparisons do, produces a list that cannot be acted on.
Not one you can get. LinkedIn documents invitation and message endpoints, but they sit inside a closed partner program, and automated or scheduled sending is barred even for approved partners. The products open to any developer cover sign-in and post sharing. Everything else needs partner approval that is limited to qualifying companies. The LinkedIn API guide maps every official product against what a third-party API adds.
A data API reads public information and returns parsed fields, billed per request or per record, with no LinkedIn account involved. An account-based API acts through an account your end user connects and authenticates, which is the only way to send an invitation or a message, and is billed per connected account. A data API cannot send. An account-based API is poor value for bulk reading. The categories are not interchangeable.
The official API is free for the products open to any developer, which are sign-in and post sharing. Those do not cover messaging, invitations or profile search, so for most products the answer is that the free tier does not do the job. See is the LinkedIn API free for what each program actually includes.
Account-based APIs price per connected account: Unipile from 49 EUR per month for up to 10 linked accounts, then 5.00 EUR per account down to 3.00 EUR at volume with unlimited API calls; Linked API at 49 or 74 EUR per seat; gtm-api from 39 USD down to 10 USD at volume. Data APIs price per request or per record instead, with Coresignal listing plans from 49 USD a month. Our full table is on the pricing page.
Judge the architecture before the marketing number. The safer pattern is one account your user owns, connected and authenticated by that user, in an isolated hosted session, with each platform's own limits relayed rather than worked around. Treat absolute claims such as zero bans with suspicion: a rate with no stated method, window or sample size is not a measurement. Ask any vendor for those four things, including us.
LinkedIn filed suit against Proxycurl in January 2025 and Proxycurl announced its shutdown in July 2025, cutting off the integrations built on it. For reading data, the remaining routes are dataset providers and scraper marketplaces. The wider lesson is architectural: when a data reseller disappears the data was never yours, whereas on an account-based API the accounts and the message history belong to your users throughout.
Yes, through an account-based API that exposes typed tools rather than a browser to drive. Unipile ships an MCP server, so an agent can search, read and send on accounts your users connected, within the limits LinkedIn enforces. See the AI agent use case for the shape of that integration.
They are operator products first, sold to a person who logs in and drives campaigns. Where they expose an API it is generally scoped to integrating with their own dashboard rather than to embedding the channel inside your product. If a human will operate it, those tools are the shorter path. If your product or your agent has to act, buy infrastructure instead.
Still have questions? Our team is here to help.
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LinkedIn, WhatsApp, Instagram, Telegram, email and calendars behind one schema, on accounts your users connect themselves. From 49 EUR a month, unlimited API calls, no credit card to start.
Sources
7 references, August 2026Every vendor fact above was read from the pages below. Pricing and claims change without notice, so verify before you commit.
LinkedIn, Microsoft Learn
Getting access to LinkedIn APIs, plus the Invitations and Messages references, for which programs are open and which are closed to new developers.
Nubela, Proxycurl
Shutdown announcement of 4 July 2025, following the suit LinkedIn filed in January 2025.
Linked API
Pricing page: 49 EUR and 74 EUR per seat per month.
OutX
Pricing page: free, then 99, 249 and 999 USD per month. API docs for the 48-hour extension heartbeat.
gtm-api
Product and pricing pages: from 39 USD per connected account down to 10 USD at volume, LinkedIn as the only live channel.
Coresignal
Pricing page: plans from 49 USD per month, plus credit-based rates.
Unipile, our own figures
Self-reported, from the pricing page and the LinkedIn API product page.
Last updated August 2026. Unipile facts verified against the live product. Everything stated about other vendors was read from their own public pages in August 2026. Unipile is an independent technical intermediary and is not affiliated with, endorsed by, or sponsored by LinkedIn.
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