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The social media API for ChatGPT

SocialAPI.ai is a social media API you can connect to ChatGPT as a Custom GPT Action. Import the OpenAPI schema, add your API key, and ChatGPT can read comments, send DMs, publish posts, and reply to reviews across Instagram, Facebook, TikTok, LinkedIn, YouTube, X, and Threads with no per-platform code.

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  • Free tier available
  • Instant API key
  • MCP server included

Add SocialAPI.ai as a ChatGPT Action

YAML
# ChatGPT > Create a GPT > Configure > Actions > Import
schema_url: https://docs.social-api.ai/api-reference/openapi.json

# Authentication
type: API Key
auth_type: Bearer
header: Authorization: Bearer sapi_key_...

# Example action ChatGPT can now call:
# POST /v1/inbox/comments/{postId}
# body: { "account_id": "acc_...", "comment_id": "sapi_cmt_...", "text": "Thanks for your comment!" }
# response (normalized for every platform):
# { "success": true, "comment_id": "17912043417..." }

Create a GPT, open Actions, and import the SocialAPI.ai OpenAPI schema. Set authentication to API Key with a Bearer token. ChatGPT can then call any endpoint as an action.

Why: Giving ChatGPT real social abilities normally means building an API first.

A Custom GPT can only call tools you expose as an Action, which means hosting an API, writing an OpenAPI spec, and handling OAuth for every network before ChatGPT can do anything. SocialAPI.ai is one pre-built API with a published OpenAPI schema, so you import it as an Action, paste your key, and ChatGPT can act across every connected network without any backend work.

Where it lands: One call, every network

The same request lands on each platform as that platform draws it.

  • On Instagram
    Comments

    • maya.r2h

      Do these come in black?

      ledge.skate1m

      Yes, black with a gum sole, sizes 36 to 46.

    • jin.k5h

      Skated mine all weekend, the grip is unreal.

    • View hidden comments (1)
    POST/v1/inbox/comments/{postId}200 OK
  • On Facebook

    Anne M.

    Active now

    Anne M.

    Thu 6:42 PM

    Do you do fittings?

    Yes, every Saturday morning.

    9:12 AM
    ❤️

    Wore these out in a year. Anything tougher?

    You replied to Anne M.

    Wore these out in a year. Anything tougher?

    Double-stitched toe cap, sizes 36 to 46.

    Book a fittingSend sizes
    POST/v1/inbox/conversations/{id}/messages200 OK
  • On Google Business Profile

    Ledge Skate & Shoe

    4.5

    • Anne M.

      3 reviews

      2 days ago

      Staff helped me pick my first board. Packed on Saturdays, though.

      Response from the ownerPending

      Thanks Anne, Saturdays now open an hour earlier.

    • Tom B.

      12 reviews

      5 days ago

      Good shoe range. My online order took a week to ship.

      Reply, No reply yet
    POST/v1/inbox/reviews/{id}/reply200 OK

Works across every connected network.

Capabilities: What the Social Media API for ChatGPT covers

Connect ChatGPT to your social accounts as a Custom GPT Action.

  • GPT Actions

    Import the OpenAPI schema once and every endpoint becomes a callable Custom GPT Action.

    schema_url: https://docs.social-api.ai/api-reference/openapi.json

  • Comments

    ChatGPT can list, reply to, hide, and like comments across all connected platforms.

    • GET/v1/inbox/comments/{postId}
    • POST/v1/inbox/comments/{postId}

  • Direct Messages

    Read conversations and send replies through a single messaging endpoint.

    • GET/v1/inbox/conversations
    • POST/v1/inbox/conversations/{id}/messages

  • Publishing

    Create and schedule posts across every network from one action call.

    • POST/v1/posts

  • Reviews

    Read and reply to reviews so ChatGPT can manage reputation in one place.

    • GET/v1/inbox/reviews
    • POST/v1/inbox/reviews/{id}/reply

In depth: Social Media API for ChatGPT, in depth

Import as a Custom GPT Action in minutes

ChatGPT Actions are defined by an OpenAPI schema. SocialAPI.ai publishes one, so you point a GPT at the schema URL, add your API key as a Bearer token, and every social capability becomes an action ChatGPT can call. There is no server to deploy and no per-platform OAuth code to write.

One Action covers every network

Because SocialAPI.ai normalizes Instagram, Facebook, TikTok, LinkedIn, YouTube, X, and Threads behind one API, a single imported Action lets ChatGPT read and respond across all of them. The same call shape returns the same JSON for every platform, which keeps the GPT's tool use accurate.

GPT Actions or MCP, your choice

Custom GPTs use Actions over REST, while assistant clients that speak Model Context Protocol can use the SocialAPI.ai MCP server instead. If you are building an MCP-native agent rather than a Custom GPT, see the Social Media API for AI Agents page at https://social-api.ai/solutions/social-media-api-for-ai-agents.

Safe, scoped writes

Once you connect accounts, ChatGPT can publish, reply, and message within each network's rules. SocialAPI.ai enforces per-platform scopes and rate limits behind the scenes, so the GPT acts safely and you keep full control through the dashboard.

Compare: Compared to wiring each platform yourself

Building Actions for each social network means a separate OpenAPI spec and OAuth flow per platform. SocialAPI.ai gives ChatGPT one Action for all of them. See how it compares to other approaches.

Frequently asked questions

What developers ask before they ship.

How do I connect ChatGPT to Instagram?

Create a Custom GPT, open Actions, and import the SocialAPI.ai OpenAPI schema. Set authentication to API Key with a Bearer token, then connect your Instagram account in the SocialAPI.ai dashboard. ChatGPT can then read and reply to Instagram comments and DMs through the imported action.

Can a Custom GPT post to social media?

Yes. Once SocialAPI.ai is imported as a GPT Action and your accounts are connected, ChatGPT can publish posts, reply to comments, send DMs, and respond to reviews across Instagram, Facebook, TikTok, LinkedIn, YouTube, X, and Threads through one set of actions.

What is the difference between GPT Actions and the MCP server?

GPT Actions let a Custom GPT call a REST API defined by an OpenAPI schema. The MCP server exposes the same capabilities as Model Context Protocol tools for assistant clients that support MCP. SocialAPI.ai offers both, so you pick the one your assistant uses.

Which platforms can ChatGPT manage through SocialAPI.ai?

ChatGPT can manage Instagram, Facebook, TikTok, LinkedIn, YouTube, X, and Threads through SocialAPI.ai. Each platform returns the same normalized JSON, so one imported action works across all of them without platform-specific handling.

Is it free to connect ChatGPT to a social media API?

Yes. SocialAPI.ai has a free tier with no credit card required, and reads such as fetching comments and DMs are always free. You can connect ChatGPT, get an instant API key, and start calling actions on the free plan.

Other solutions, same API: Other solutions, same 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.

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