ChatGPT

ChatGPT Social Media Connector Setup

ChatGPT reaches social media through a custom MCP server added in Developer mode, authenticated over OAuth. Blotato serves a complete OAuth 2.1 stack, including protected-resource metadata, dynamic client registration, and PKCE, which is exactly what Developer mode expects. The real constraint is on the ChatGPT side: Developer mode is web only, and it appears on Pro, Plus, Business, Enterprise, and Education accounts. GPT-6 Astra connects the same way, through Developer mode in a regular chat.

Endpoint https://mcp.blotato.com/mcp OAuth only

Updated August 2026

How to connect ChatGPT to social media

  1. Connect your social accounts in Blotato.
  2. Open ChatGPT on the web, go to Settings then Security and login, and enable Developer mode. It is not available in the mobile or desktop apps.
  3. Open Settings, then Plugins, and add a new plugin pointing at https://mcp.blotato.com/mcp. If a walkthrough tells you to look under Connectors, it predates July 2026, when OpenAI moved that menu into Plugins.
  4. Complete the OAuth approval while logged into Blotato in the same browser.
Developer mode connector URL (OAuth, no headers)
https://mcp.blotato.com/mcp

Custom MCP servers in ChatGPT live behind Developer mode, which is web only and on Pro, Plus, Business, Enterprise, or Education accounts. It connects over OAuth rather than an API-key header, which is how Blotato authenticates Claude too.

Blotato added as a custom connector at mcp.blotato.com/mcp, with its social media tools listed
Blotato as a custom connector, with its tool permissions listed. This is the screen ChatGPT shows once the OAuth approval completes.

How do I know it worked?

Ask ChatGPT to list your connected accounts. It calls blotato_list_accounts and returns your platforms, which confirms both the connection and the authentication in one step. If you see your accounts, setup is done.

First prompt to run
What social media accounts do I have connected?
An AI agent answering "what social accounts do i have connected?" by calling Blotato and listing 10 connected social media accounts across Twitter, Bluesky, Instagram, Threads, LinkedIn, Facebook, YouTube, Pinterest, and TikTok
The reply you are looking for: the agent calls Blotato and lists every connected account. Here it returns 10 accounts across all nine platforms.

Worth knowing before you rely on it: analytics prompts return data for every platform except LinkedIn, which publishes normally but reports no metrics yet.

What to ask ChatGPT once it is connected

Post this to Instagram.
ChatGPT calls blotato_list_accounts, then blotato_create_post with the image and caption from the chat. The draft and the publish happen in the same window, which is the entire reason to connect it here rather than copying into another tab.
Make this into a Reel instead.
The same call with mediaType set to reel. Facebook video has to be a reel too, since regular feed video is no longer supported there.
Reply to the comments on my last Instagram post.
blotato_list_comments reads them and blotato_post_comment replies. Instagram and Facebook are the only platforms with comment access, so the same request against a LinkedIn post has nothing to read.
When someone comments 'price' on my Instagram post, DM them the link.
blotato_create_automation builds it: a comment-received trigger, the keyword price, and the message to send. Instagram and Facebook Pages only, and it is reply-only, so it answers people who comment or message you first and never opens a conversation on its own.

What breaks, and how to fix it

The usual dead end is looking for the connector option in the ChatGPT desktop or mobile app, where Developer mode does not exist. It is web only. The second is trying to authenticate with an API key header, which Developer mode does not accept: it takes OAuth, No Auth, or Mixed, and no custom headers, so the API key path that works in Cursor or Codex has no equivalent here. The third is following a walkthrough written before July 2026, when OpenAI moved connectors into the Plugins directory and the old Connectors menu stopped matching what is on screen.

What is different about ChatGPT

ChatGPT is the one agent on this list where the limiting factor is entirely the vendor account tier rather than the connection. If you are in the OpenAI ecosystem and Developer mode is not available to you, OpenAI Codex is a different OpenAI product that takes the same endpoint with a plain API key header and no tier requirement. On the model side, GPT-6 Astra is built for computer use and multi-step work, which changes how much it can prepare before the publish call rather than how that call happens. Note that agent mode does not use custom MCP plugins, so this runs from a regular chat.

Vendor documentation: ChatGPT MCP setup. The handshake it uses is the MCP authorization spec, which Blotato implements in full, including dynamic client registration and PKCE.

FAQ

ChatGPT social media FAQs

01 Can ChatGPT post to social media?
Yes. ChatGPT cannot reach a social account on its own, because it has no platform credentials. Connecting it to Blotato's hosted MCP server at https://mcp.blotato.com/mcp gives it tools to publish and schedule across nine platforms: X, LinkedIn, Facebook, Instagram, TikTok, YouTube, Threads, Bluesky, and Pinterest. ChatGPT authenticates with oauth only.
02 How do I connect ChatGPT to social media?
ChatGPT reaches social media through a custom MCP server added in Developer mode, authenticated over OAuth. Blotato serves a complete OAuth 2.1 stack, including protected-resource metadata, dynamic client registration, and PKCE, which is exactly what Developer mode expects. The real constraint is on the ChatGPT side: Developer mode is web only, and it appears on Pro, Plus, Business, Enterprise, and Education accounts. GPT-6 Astra connects the same way, through Developer mode in a regular chat.
03 How do I set up ChatGPT for social media?
Setting up ChatGPT for social media takes one connection. Connect your social accounts in Blotato, then give ChatGPT the hosted MCP endpoint https://mcp.blotato.com/mcp and authenticate with oauth only. For ChatGPT specifically that means: developer mode connector url (oauth, no headers). Once it loads, ChatGPT can publish and schedule to X, LinkedIn, Facebook, Instagram, TikTok, YouTube, Threads, Bluesky, and Pinterest from a plain-language prompt.
04 What is the best way to manage social media with ChatGPT?
Let ChatGPT do the drafting and decision making, and let a publishing layer hold the accounts and the schedule. The thing that makes this work on ChatGPT in particular: ChatGPT is the one agent on this list where the limiting factor is entirely the vendor account tier rather than the connection. If you are in the OpenAI ecosystem and Developer mode is not available to you, OpenAI Codex is a different OpenAI product that takes the same endpoint with a plain API key header and no tier requirement. On the model side, GPT-6 Astra is built for computer use and multi-step work, which changes how much it can prepare before the publish call rather than how that call happens. Note that agent mode does not use custom MCP plugins, so this runs from a regular chat.
05 What goes wrong when connecting ChatGPT?
The usual dead end is looking for the connector option in the ChatGPT desktop or mobile app, where Developer mode does not exist. It is web only. The second is trying to authenticate with an API key header, which Developer mode does not accept: it takes OAuth, No Auth, or Mixed, and no custom headers, so the API key path that works in Cursor or Codex has no equivalent here. The third is following a walkthrough written before July 2026, when OpenAI moved connectors into the Plugins directory and the old Connectors menu stopped matching what is on screen.
06 Does ChatGPT need to be running for a scheduled post to go out?
No. Scheduling runs on Blotato rather than inside ChatGPT. Once the agent queues a post, it publishes at the scheduled time whether or not ChatGPT, your terminal, or your laptop is on. This is the practical difference between an agent that drafts and a system that runs unattended.
07 What can I ask ChatGPT to do once it is connected?
"Post this to Instagram." ChatGPT calls blotato_list_accounts, then blotato_create_post with the image and caption from the chat. The draft and the publish happen in the same window, which is the entire reason to connect it here rather than copying into another tab. "Make this into a Reel instead." The same call with mediaType set to reel. Facebook video has to be a reel too, since regular feed video is no longer supported there. "Reply to the comments on my last Instagram post." blotato_list_comments reads them and blotato_post_comment replies. Instagram and Facebook are the only platforms with comment access, so the same request against a LinkedIn post has nothing to read. "When someone comments 'price' on my Instagram post, DM them the link." blotato_create_automation builds it: a comment-received trigger, the keyword price, and the message to send. Instagram and Facebook Pages only, and it is reply-only, so it answers people who comment or message you first and never opens a conversation on its own.
08 How much does it cost to connect ChatGPT?
Starter is $29/mo flat for 20 connected accounts, and the price does not scale with posting volume. API and MCP access is not part of the 7-day trial: generating a key activates the paid Starter plan, so plan on subscribing rather than trialing it.