Can OpenAI Codex post to social media?

Yes, once you connect an MCP server that can publish. PostWire is one: add it to OpenAI Codex with the config on this page and it gets 17 tools, including one that writes a native post per network and one that publishes.

Where does the MCP config live for OpenAI Codex?

Config it writes: ~/.codex/config.toml ([mcp_servers.postwire])

Do I need approval from TikTok or Meta first?

No. PostWire has already been through those reviews, so you publish through its approved apps. Telegram, Bluesky, Mastodon and Discord need no review from anyone.

Verified October 2026

Or give your agent one line and let it do all of this, ending with your first post: set up https://postwire.io/SKILL.md (read the skill).

Give OpenAI Codex the ability to post to social media

OpenAI Codex can publish to TikTok, Instagram, Facebook Pages, YouTube, LinkedIn (personal profiles), Telegram, Bluesky, Mastodon and Discord once you connect PostWire as an MCP server (X and Reddit are not available yet). Below is the exact config for OpenAI Codex — including the detail that makes a copied config fail silently.

Where the config goes

Scope	Path
Config it writes	`~/.codex/config.toml ([mcp_servers.postwire])`

Run the command in your terminal. Codex notices that PostWire supports sign-in and opens the browser by itself.

Connect the hosted server (recommended)

Nothing to install — PostWire runs the server for you. The hosted server accepts an API key (an Authorization: Bearer header) or an OAuth 2.1 sign-in.

codex mcp add postwire --url https://postwire.io/api/mcp
# only if the sign-in did not start by itself:
codex mcp login postwire

Without a browser: an API key from an environment variable

Create a key in the dashboard (API & MCP), put it in POSTWIRE_API_KEY where the agent runs, and point the entry at the variable:

codex mcp add postwire --url https://postwire.io/api/mcp --bearer-token-env-var POSTWIRE_API_KEY

The same entry by hand, in ~/.codex/config.toml: [mcp_servers.postwire] with url = "https://postwire.io/api/mcp" (and bearer_token_env_var = "POSTWIRE_API_KEY" for the key).

The mistake that makes this fail silently

Without a browser (CI, a remote box) the sign-in cannot finish. Use the API key instead, and pass the name of the environment variable with --bearer-token-env-var — not the key — so the key never lands in config.toml.

Check it worked

Run codex mcp list, or type /mcp inside Codex, and check that postwire is listed with its tools.

What it can do once connected

Tool	What it does
`generate_posts`	One prompt in, a native draft per network out — respecting each one's character limit, hashtag rules and link conventions.
`post_to_social`	Publish to one or many networks in a single call.
`get_post_status`	Check what happened to a post after it was accepted.
`list_platforms`	Which networks are available and which need approval.
`my_account`	Plan, usage and which brands are connected.
`schedule_post`	Queue a post for a future time, up to 365 days ahead. Hosted server only.
`list_scheduled_posts`	List queued, published, failed or canceled scheduled posts. Hosted server only.
`cancel_scheduled_post`	Cancel a queued post before it goes out. Hosted server only.
`create_connect_link`	A one-hour link the user opens to connect a social account. Hosted server only.

A prompt like "write a launch post for our new feature and publish it to TikTok, LinkedIn and Bluesky" becomes two tool calls: one to draft a native version per network, one to publish.

Networks differ more than people expect — X caps at 280 characters against YouTube's 5,000, Reddit has no hashtags, and TikTok, YouTube and Instagram all refuse text-only posts. See what breaks between any two networks.

What it costs to leave running

Nothing to try: one brand and 20 posts a month are free, no card — every network connects free, 2 per post. An agent posting daily passes that in a month — Starter is $9/month for 300 posts and three brands, Pro $29 for ten.

Get your key — free →

Questions people actually ask

Can OpenAI Codex post to social media?: Yes, once you connect an MCP server that can publish. PostWire is one: add it to OpenAI Codex with the config on this page and it gets 17 tools, including one that writes a native post per network and one that publishes.
Where does the MCP config live for OpenAI Codex?: Config it writes: ~/.codex/config.toml ([mcp_servers.postwire])
Do I need approval from TikTok or Meta first?: No. PostWire has already been through those reviews, so you publish through its approved apps. Telegram, Bluesky, Mastodon and Discord need no review from anyone.

Source for the OpenAI Codex config format: OpenAI Codex MCP docs. Using a different client? See all of them.