SocialAPI.ai

The LinkedIn API, through one API key

Publish to LinkedIn profiles through one API.

  • Free tier, no credit card
  • Instant API key
  • MCP server included
On LinkedIn

Ledge Skate & Shoe

1,204 followers

1m

New white lows just landed. In store Saturday, all sizes.

POST/v1/posts201 Created

Capabilities: What you can build on LinkedIn

Every capability is one endpoint, the same one you call on every other platform.The screens show where each call lands.

  • Profile publishing

    Publish text, images, video, and multi-image carousels to a member profile. Update post text and delete posts through the same unified endpoint.

    • POST/v1/posts
    • text
    • image
    • video
    • carousel
    • update
    • delete

On every platform

  • Agent-ready

    Every LinkedIn capability is a typed tool on the SocialAPI.ai MCP server.

    • social_api_validate_post
    • social_api_create_post
  • One API key

    The key that calls LinkedIn calls all 13 platforms.

    Authorization: Bearer sapi_key_…
  • Predictable errors

    The same status codes everywhere, whatever the platform behind them.

    • 401expired token
    • 429rate limited
    • 501not on this platform

Call the LinkedIn API

Publish a post to LinkedIn

The same POST /v1/posts endpoint you already use for every other platform. SocialAPI.ai handles LinkedIn's Rest.li protocol, LinkedIn-Version headers, and URN plumbing behind the scenes.

curl -X POST https://api.social-api.ai/v1/posts \
  -H "Authorization: Bearer <your-api-key>" \
  -H "Content-Type: application/json" \
  -d '{
    "targets": [{ "account_id": "<linkedin-account-id>" }],
    "text": "We just shipped our new API. Here is what changed and why it matters for developers.",
    "media": [{ "source_type": "url", "source": "https://yourcdn.com/image.jpg" }],
    "publish_now": true
  }' | jq

# Response
{
  "id": "<post-id>",
  "status": "published",
  "targets": [
    {
      "platform": "linkedin",
      "account_id": "<linkedin-account-id>",
      "status": "published",
      "platform_post_id": "urn:li:share:7..."
    }
  ]
}

Comparison: The official API vs one API key

AspectThe official LinkedIn APIWith SocialAPI.ai
Getting accessThe official LinkedIn APIBuild and maintain your own LinkedIn app, OAuth scopes, and version upgrades.With SocialAPI.aiSign up, grab an API key, and connect a LinkedIn account through OAuth in minutes.
Publishing a postThe official LinkedIn APIRest.li protocol, LinkedIn-Version headers, and URN plumbing on every request.With SocialAPI.aiOne POST /v1/posts call with plain JSON. Headers and protocol quirks are handled for you.
Reading the resultThe official LinkedIn APIThe post URN is returned in a response header, not the body.With SocialAPI.aiA normalized JSON response with the post ID, like every other platform.
Token expiryThe official LinkedIn APIMember tokens die after about 60 days with no programmatic refresh; you build the reconnect UX.With SocialAPI.aiExpired accounts return a clear reconnect error instead of a silent failure.

In depth: How the LinkedIn API works on SocialAPI.ai

Yes, LinkedIn has an API. Create, update, and delete posts on member profiles through the same endpoint you use for every other network. SocialAPI.ai handles OAuth scopes, LinkedIn-Version headers, and the Rest.li protocol for you.

Multi-format profile publishing

Publish text posts, image posts, video posts, and multi-image carousels to a member's LinkedIn profile through the unified publishing endpoint. Update post text or delete a post through the same endpoint, no separate LinkedIn-specific calls required.

One schema, regardless of LinkedIn's protocol

LinkedIn's raw API speaks Rest.li, sends the post URN back in a response header, and requires a LinkedIn-Version header (currently 202605) on every call. SocialAPI.ai absorbs all of that and returns the same normalized JSON response you get from Instagram, Facebook, or any other connected platform.

Simple, honest pricing.

Reading comments, DMs, and mentions is free and unlimited on every plan. Paid plans start at $29/mo with unlimited posts and interactions. The free tier needs no credit card.

Frequently asked questions

What developers ask before they ship LinkedIn.

Does LinkedIn have an API?

Yes. LinkedIn offers official APIs, documented by Microsoft. SocialAPI.ai publishes to member profiles through one REST API, without building and maintaining your own LinkedIn integration.

Is the LinkedIn API free?

LinkedIn's official API has no fee, but integrating and maintaining it takes engineering time. SocialAPI.ai has a free tier with no credit card; paid plans start at $29/mo with unlimited posts.

Can I post to LinkedIn with Python?

Yes. The API is plain REST with JSON, so any language works. The Python tab above publishes a post in a few lines.

How long do LinkedIn access tokens last?

About 60 days, and LinkedIn does not allow programmatic refresh. When a token expires the member reconnects in one OAuth round-trip.

Can AI agents post to LinkedIn through SocialAPI.ai?

Yes. The built-in MCP server exposes publishing as tools, so Claude and other MCP-capable agents can draft and publish LinkedIn posts with your approval flow.

Every other platform, one API: Every other platform, one API

Same key, same shapes, same webhook.

Ready to unify your social interactions?

Free tier available. No credit card required. Ships with the MCP server.