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  1. Home
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  3. /Codex CLI

Codex writes the code. It can write the announcement too.

Codex CLI is OpenAI's terminal agent, and if it is already in your shell finishing tasks, the announcement of those tasks is one MCP server away. Two lines of TOML and planpo.st's tools show up next to everything else Codex can do.

The loop is the same as every client here, and it is the loop that matters: the agent posts with a tracked link, the link carries clicks to your checkout, and the payment lands back on the post that caused it.

Start 7-day free trial →Setup instructions

What Codex CLI is

Codex CLI is OpenAI's open-source coding agent for the terminal, configured in TOML at ~/.codex/config.toml. It supports MCP servers over both stdio and streamable HTTP, and codex mcp add does the config edit interactively if you prefer.

Three things to try on day one

1. Post the ship log

Summarize what we shipped this week from the git log and schedule it as a LinkedIn post Friday 4pm.

Codex reads the log, writes a shipping update that sounds like a person, and create_post books it for Friday. The changelog link is tracked, so signups from that post are attributable.

2. Same news, right shape everywhere

Take RELEASENOTES.md and schedule versions for X, LinkedIn and Threads tomorrow morning.

Three drafts, each inside its platform's limit (280, 3,000 and 500 characters), one shared tracked link, one morning slot each. preview_post shows how each will render before anything is booked.

3. Close the loop in the same terminal

Did the launch posts from last week produce any revenue?

get_revenue_overview answers with the attributed amounts per post. If the answer is zero, that is worth knowing too, and it is a real zero from payment data rather than a shrug.

The part the other schedulers skip

Plenty of tools let an agent post. The difference here is what comes back: every link in a scheduled post can be tracked, payments from Stripe, Shopify or RevenueCat are matched to the exact post that caused them, and your agent can read those numbers with the same connection it used to publish. Codex CLI does not just post for you, it finds out whether the post worked.

How revenue attribution works

Connecting takes a minute

OpenAI's terminal agent. Configured in TOML rather than JSON. Grab an API key from Settings, add the server, hosted or local, and the tools appear. The full config, with the sharp edges called out, is on the setup page.

Codex CLI setup guide

Questions people ask

TOML instead of JSON?
Yes, Codex configures in TOML. The hosted form reads your key from an environment variable rather than the file, which keeps the config committable. Both variants are on the setup page ready to paste.
Can Codex run this unattended?
Yes, with the same guardrails as any client: draft-only or approval-required on the planpo.st side. An unattended agent that fills the approval queue is useful; one that publishes unreviewed is a choice you have to make explicitly.
Does it work alongside other MCP servers?
Fine. planpo.st is one entry in mcp_servers among however many you run. Tool names are prefixed, so nothing collides.
What does it cost?
planpo.st is $19.99 a month for Creator, $39.99 for Pro, and revenue attribution is a Pro feature. The MCP server itself is free and open, it is the same one every client on this page uses.

Keep going

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What Codex CLI can reach

The 7 networksPayment integrationsRevenue attribution