Does Threads have a DM API?

No. Meta shipped in-app direct messages for Threads in July 2025 and has published no API endpoint for them as of May 2026, so no tool can send Threads DMs through an official API.

Does LinkedIn have a DM API?

Not for this purpose. LinkedIn exposes no official messaging API for outreach; the working paths are unofficial cookie-session tools that carry daily action caps and risk account restriction.

Which social networks can software send DMs on?

Bluesky and Reddit expose direct messages to software. X does too, behind pass-through pricing. Threads and LinkedIn do not.

Reference

Which social networks actually have a DM API

Short answer: Bluesky and Reddit expose direct messages to software. Threads and LinkedIn do not. X does, behind pass-through pricing. Last checked May 2026.

Platform Post Public replies Direct messages

BlueskyYesYesYes: list, fetch and send

RedditYesYesYes, text only

XYesYesYes, behind pass-through pricing

LinkedInYesYesNo API exists

ThreadsYesYesNo API exists

Threads

Meta shipped in-app direct messages for Threads in July 2025 and has published no API endpoint for them. There is no official way for software to read or send a Threads DM, and no provider can sell you one. This is a platform limitation, not a vendor gap. If a tool claims to automate Threads DMs through an API, that API does not exist.

LinkedIn exposes no official messaging API for outreach. The only working path is unofficial cookie-session access, which carries daily action caps described by its own vendors as being there "to reduce detection risk", and reported account warnings and disconnections. Weigh that honestly: the downside is a restriction on the account whose network you are trying to use.

What this means if you are automating outreach

The useful conclusion is not "buy a second vendor". It is that the shape of the funnel has to change per network, because two of the most valuable ones cannot carry a private message at all:

Where DMs exist (Bluesky, Reddit): notice interest in a public reply, move to a DM, continue there.
Where they do not (LinkedIn, Threads): qualify in the open and make the handoff in the reply itself: answer the question properly, then name the next step once. Weaker per conversation, but a public thread has an audience a DM never gets.

A tool that pretends this distinction does not exist will either quietly do nothing on half your accounts, or reach for the cookie-session route without telling you.

One more constraint worth knowing

On most networks a DM is only permitted to someone who contacted the business first. That is a platform rule and also the difference between organic acquisition and cold spam. Any system that can start a thread with a stranger is one that can get an account banned.

Magnetiq is built around this constraint rather than against it: it picks the funnel by what each platform can actually carry, and never attempts a DM where no API exists.

See how it works

Last verified against provider documentation: May 2026.