Schedule Social Posts with MCP Claude: Queue 152 Days of Content

What This Tutorial Covers

This is a step-by-step walkthrough of the Reaudit Broadcast MCP workflow used for the 3dplotter.xyz V3 launch. The campaign generated 70 launch slots and 345 feature series slots, totalling 415 posts scheduled from August 24, 2026 to January 22, 2027. Every post was written, illustrated, and queued by an AI agent through the Model Context Protocol.

If you have been looking for how to schedule social media posts with Claude MCP, this is the practical version. No theory about AI agents. Just the call chain, the parameters, and the failure points you will hit on your first run.

Prerequisites

• Reaudit account with Broadcast enabled. Sign up at reaudit.io/broadcast.
• Reaudit MCP plugin installed in your client. The server exposes 180 tools, of which about a dozen are relevant to social scheduling.
• Cursor or Claude Desktop (or any MCP-compatible client). OAuth 2.0 with PKCE handles authentication. No API keys to copy.
• Connected social accounts for the platforms you want to publish to. Reaudit Broadcast supports Instagram, TikTok, LinkedIn, X, and Facebook.
• A content brief. At minimum: product name, launch date, feature list, tone, and target audience. The agent cannot invent your positioning.

If you are new to MCP, the integration is similar to any other tool server you have added to Claude. The difference is that Reaudit tools return structured data your agent can act on, not just text.

Why Use an MCP Server for Social Scheduling

Most social media automation with Model Context Protocol stops at draft generation. You ask Claude to write a post, you copy it, you paste it into a scheduler. That is not automation. That is assisted copywriting.

The Reaudit Broadcast MCP server goes further because it exposes scheduling as a tool call. The agent does not just write. It queues. When you connect Claude to social media platforms through MCP, the agent can read your content calendar, generate assets, and commit posts to specific time slots. The 152-day campaign ran this way because no human wanted to manually place 415 posts.

For agencies running multiple client accounts, this changes the unit economics. One agent session can populate a quarter of content across five platforms. The bottleneck moves from production to strategy, which is where it belongs.

Step-by-Step: Schedule Social Posts with MCP Claude

Step 1: Install and Authenticate the Reaudit MCP Plugin

Add the Reaudit MCP server to your client. In Claude Desktop, this means editing the config file to include the server URL. In Cursor, use the MCP settings panel. The server supports SSE and Streamable HTTP.

Once added, authenticate via OAuth. Claude.ai users get one-click OAuth. Claude Desktop and Cursor users go through a browser redirect. After authentication, run a simple tool call like get_content_calendar to confirm the connection. If it returns an empty calendar, you are connected but have no scheduled content yet. That is expected on a fresh account.

For a deeper setup reference, the MCP getting started guide covers Claude Code, Cursor, VS Code, and other clients.

Step 2: Define the Campaign Brief

The agent needs structured input. For the 3dplotter.xyz V3 launch, the brief included:

• Product: 3dplotter.xyz V3, a browser-based 3D plotting tool
• Launch date: August 24, 2026
• Feature set: 12 named features to be serialised over 345 posts
• Platforms: Instagram, TikTok, LinkedIn, X, Facebook
• Cadence: 2 to 3 posts per day, weighted toward launch week
• Tone: technical but accessible, no hype

Write this as a prompt or a structured JSON object. The more specific the feature list, the less generic the generated copy. Vague briefs produce vague posts, and vague posts do not get scheduled because the agent has nothing to differentiate them.

Step 3: Generate Post Copy with generate_content

Call generate_content with the campaign brief and a target platform. The tool returns platform-appropriate copy. For X, it returns short-form posts under 280 characters. For LinkedIn, it returns longer-form posts with a hook, body, and call to action. For Instagram and TikTok, it returns caption text plus suggested hashtags.

Run this tool once per content slot. For 415 slots, that is 415 calls. In practice, you batch them by platform and by content theme. The 70 launch slots were generated in one batch. The 345 feature series slots were generated in five batches of roughly 70.

If you want to review before scheduling, stop here and inspect the output. If you trust the brief, continue to the next step.

Step 4: Generate Visuals with generate_social_image

Call generate_social_image with the post copy and a visual style parameter. The tool returns an image URL or asset ID that the scheduling step can attach. Reaudit Broadcast supports multiple image sources, including stock libraries and generated images.

For the 3dplotter.xyz campaign, the visual style was consistent across all 415 posts: dark background, neon plot lines, product UI visible. Consistency matters more than novelty when you are queuing five months of content. A recognisable visual system makes the series feel intentional rather than algorithmic.

One practical note: image generation is the slowest step in the chain. If you are batching 70 posts, expect the image calls to dominate the runtime. Run them in parallel where your client supports it.

Step 5: Preview Cross-Platform Output with cross_post_to_social

Before scheduling, call cross_post_to_social to see how the same core message adapts across platforms. This tool takes a single piece of content and returns platform-specific variants. It is useful for checking that your LinkedIn post is not just your X post with more words.

In the 3dplotter.xyz run, cross_post_to_social was used as a validation step. The agent generated the X version first, then checked whether the LinkedIn and Facebook variants preserved the technical detail. Where they did not, the agent regenerated with a stronger brief.

This is the step most people skip. Do not skip it. Platform-native copy is the difference between a campaign that reads as human and one that reads as syndicated.

Step 6: Schedule with schedule_social_post

This is the commit step. Call schedule_social_post with the post copy, image asset, platform, and target datetime. The tool writes the post to your Reaudit Broadcast queue and pushes it to the connected platform's scheduling API.

For the 152-day campaign, the scheduling logic worked like this:

• Launch week (Aug 24 to Aug 30, 2026): 3 posts per day per platform
• Weeks 2 to 4: 2 posts per day per platform
• Months 2 to 5: 1 to 2 posts per day per platform, weighted toward feature deep-dives
• Final week (Jan 16 to Jan 22, 2027): recap posts and community highlights

Each call returns a confirmation with the scheduled post ID. Log these. If a post fails to schedule, the ID will be missing or flagged.

Step 7: Verify with get_content_calendar

After scheduling, call get_content_calendar to pull the full queue. This returns every scheduled post with platform, datetime, status, and asset reference. Check three things:

1. Total count matches your expectation (415 in this case)
2. No platform is over- or under-represented
3. No two posts land in the same slot

If the count is short, the likely cause is a failed image generation or an authentication timeout mid-batch. Re-run the missing slots.

Tips for Reliable MCP Social Scheduling

• Batch by platform, not by date. Platform-specific batching reduces context switching in the agent and produces more consistent tone.
• Pin your visual style. Pass the same style parameters to every generate_social_image call. Consistency is what makes a long campaign look deliberate.
• Schedule in timezone-aware format. If you are running a campaign across UK, Germany, and Greece, use UTC in the call and let the platform handle local display.
• Keep a human review gate for the first 10 posts. Once the output matches your brand voice, remove the gate for the remaining 405.
• Log every tool response. The scheduled post ID is your audit trail. If a platform rejects a post, you need the ID to find it.

Troubleshooting

Authentication fails mid-batch

OAuth tokens can expire during long runs. If schedule_social_post starts returning auth errors, re-authenticate and re-run the failed slots. The get_content_calendar call will show you which slots are missing.

Image generation returns placeholder assets

This usually means the style parameter was not passed correctly. Check the generate_social_image call for missing or malformed style fields. Re-run those posts individually.

Posts schedule but do not appear on the platform

Check the platform connection in Reaudit Broadcast. A disconnected account will accept the schedule call but fail at publish time. Reconnect and reschedule.

Duplicate posts appear in the calendar

This happens when a batch is re-run without clearing the previous attempt. Use get_content_calendar to identify duplicates, then remove them via the Reaudit Broadcast interface.

Copy reads as generic across platforms

Your brief is too thin. Add platform-specific tone instructions to the generate_content call. LinkedIn wants professional context. TikTok wants hook-first energy. X wants compression.

Expected Outcomes

After completing this workflow, you will have a fully populated social queue across five platforms, with platform-native copy and consistent visuals, scheduled for the duration of your campaign. For the 3dplotter.xyz V3 launch, that was 415 posts over 152 days.

You will also have a repeatable process. The same call chain works for any product launch, feature series, or evergreen content programme. The only variables are the brief and the cadence.

Frequently Asked Questions

Next Steps

Start with a single platform and a 30-day campaign. Once the call chain is working, expand to five platforms and a longer horizon. The 152-day run was not a special case. It was the same workflow applied consistently.

To go deeper on the tooling, see the content factory use case for the full generate, translate, publish workflow, and the MCP tools reference for every available call.