Grok Build is xAI's coding agent. It runs in your terminal as a full-screen app, headless with grok -p for scripts, or inside other editors. It supports MCP servers, which is how it reaches PosteAhora.

How do I add PosteAhora to Grok Build?

Run grok mcp add --transport http posteahora https://mcp.posteahora.com/mcp. Or add a [mcp_servers.posteahora] section with that url to ~/.grok/config.toml. Use --scope project to keep it in one repo's .grok/config.toml instead.

Do I need an API key?

No. Grok Build signs you in with OAuth in the browser the first time it uses a PosteAhora tool, and you pick the workspace. An API key is only for machines without a browser: pass it with --header "Authorization: Bearer pah_live_…".

Can I run it from CI or a cron job?

Yes. grok -p runs a single prompt and exits, so it fits a nightly job or a release pipeline. On a server without a browser, add the server with an API key header instead of OAuth.

Will it publish something I did not approve?

A scheduled post waits in your PosteAhora queue, where you can edit or delete it before it goes out. Nothing leaves early unless you ask the agent to publish now.

Something isn't working. How do I check?

Run grok mcp doctor posteahora. It checks the connection and the sign-in. grok mcp list shows whether the server is configured, and /mcps in the TUI lets you switch it on or sign in again.

Grok Build is billed by xAI. On our side there is a 7-day trial for $0 with a card on file, then a flat monthly or yearly price by plan, with the MCP server included. X posts count toward your plan's monthly X post allowance.

Grok Build integration

Announce what you ship from Grok Build

Grok Build is xAI's coding agent for the terminal. One command adds PosteAhora, and the agent that just shipped your change writes the launch post and schedules it to Instagram, X, LinkedIn, TikTok and eleven more networks. Or run it on a cron with grok -p.

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Connect in under 2 minutes · 7-day trial

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average customer rating

870

views on posts published through PosteAhora

networks behind one connector

It shipped the change, so it writes the post

Grok Build already has the diff, the commits and the changelog in context. Ask for the launch post and it writes from what actually changed: a LinkedIn post, an Instagram caption and an X post that fits, each queued through PosteAhora.

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Grok BuildPosteAhora

v3.1 is tagged. Write the launch post from the changelog: LinkedIn, Instagram and X, Tuesday 9:00.

ReadCHANGELOG.mdv3.1git log -5

create_post ×3schedule_post ×3

v3.1 is out: offline mode, a faster sync engine and export to CSV. What changed and why →

Scheduled · Tue 09:00

v3.1 just shipped. Offline mode, faster sync and CSV export. Swipe for the tour →

#buildinpublic #devtoolsScheduled · Tue 09:00

v3.1 is live: works offline, syncs faster, exports to CSV. Changelog ↓

70 / 280 charactersScheduled · Tue 09:00

Put it on a cron with grok -p

Headless mode runs one prompt and exits, so a nightly job can turn the day's merged PRs into a changelog post. It lands in your PosteAhora queue as a scheduled post, and you can edit it before it goes out.

See plans and limits How scheduling works →

Ask which release people noticed

Analytics is one of the tools, so "how did the v3.1 post do on X?" gets numbers back in the terminal. Then ask for the next announcement in the same shape.

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PosteAhora by the numbers

Live

2,400

Posts published by our users

Social platforms with more coming soon

870

Views on published posts

10.1

Likes on published posts

140 social accounts connected
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What you can do with Grok Build

From a single message, Grok Build handles the whole post — drafting, scheduling and publishing across your connected networks.

Try asking Grok Build

“Read the last three commits and write a launch post for X and LinkedIn, then schedule it for 10am tomorrow”

“Turn CHANGELOG.md into a Threads post and a Bluesky post and queue both”

“List my scheduled posts for this week and move anything on Saturday to Monday”

Your next post is one message to Grok Build away.

7-day trial for $0 · card required · cancel anytime. First post free, no card.

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Fast setup

Connect Grok Build in four steps

No developer setup and no API wrangling — you'll be scheduling posts in under two minutes.

Step 1
Start your free trial
Create your PosteAhora account. The trial starts right away and nothing publishes until you say so.
Start your 7-day trial
Step 2
Connect your social media
Instagram, LinkedIn, X, TikTok and the rest: one sign-in each, done once. They all sit behind the same MCP server.
Step 3
Add PosteAhora to Grok Build
Run the command below. The first time the agent calls a PosteAhora tool, Grok Build opens your browser to sign in and pick a workspace.
grok mcp add --transport http posteahora https://mcp.posteahora.com/mcp
Step 4
Ask the agent
Describe the post and when it goes out, in the TUI or with grok -p from a script.
Grok BuildPosteAhora
v3.1 is tagged. Write and schedule the launch post
schedule_post
Drafted from CHANGELOG.md and scheduled Tue 09:00

The whole setup, in the terminal

Install Grok Build, add the server once, and schedule from a prompt or a cron job. Tokens are stored by Grok Build after the first sign-in.

$ curl -fsSL https://x.ai/cli/install.sh | bash$ grok mcp add --transport http posteahora https://mcp.posteahora.com/mcp$ grok mcp list$ grok -p "Schedule the v3.1 launch post for Tue 9:00"