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PostSyncer MCP

PostSyncer exposes a Model Context Protocol (MCP) server so AI assistants and coding agents can manage social content with tools (structured actions) instead of ad-hoc HTTP calls.
Three ways to connect: (1) the official ChatGPT app — install PostSyncer from the ChatGPT app directory, nothing to configure; (2) a connector — clients that support OAuth (e.g. Claude with custom connectors) add the URL and authorize in PostSyncer, with no token to paste; (3) a Bearer token — the same personal access tokens as REST, created in app.postsyncer.com → Settings → API Integrations.

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Endpoint

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Choosing an auth method

  • ChatGPT app — the easiest path for ChatGPT: open PostSyncer in ChatGPT, click Install, sign in to PostSyncer. It uses the same OAuth flow as a connector under the hood.
  • Connector (OAuth) — easiest for other assistants that support it (Claude: Settings → Connectors → Add custom connector). You add https://postsyncer.com/mcp, get sent to PostSyncer to click Allow, and the client is connected — nothing to copy or rotate. Access is scoped to the workspaces you belong to.
  • Bearer token — best for config-file clients (Claude Desktop, Claude Code, Cursor) and scripts. Create a personal access token and send it in the Authorization header.
See Client setup for both.
Treat tokens like production passwords. They can publish posts, delete content, and disconnect accounts when matching tools are invoked. Connector access can be revoked anytime from your PostSyncer account.

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What the server does

The PostSyncer MCP server (name PostSyncer, version 1.0.0) implements tools that mirror API v1:
  • Workspaces - discover context and connected accounts.
  • Accounts - list connected social profiles; disconnect when needed.
  • Labels & campaigns - organize content.
  • Posts - create, list, read (by id, public URL, or platform post id), analyze public X/Twitter threads with AI, update, delete, schedule.
  • Comments - list, sync from platforms, create replies, update, delete, hide.
  • Analytics - summary, workspace, post, and account metrics; sync post analytics.
Server instructions remind models to start with list-workspaces and list-accounts, respect workspace boundaries, and only run delete-* tools when the user clearly asked.

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Relationship to the REST API

  • Parity: MCP tools call the same backend rules as https://postsyncer.com/api/v1.
  • Choose MCP when your client supports Streamable HTTP and Bearer headers (see Client setup).
  • Choose REST for servers, webhooks, mobile apps, or languages without MCP.

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More on PostSyncer.com

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Next steps

Client setup

Claude Desktop, Claude Code, Cursor, and other Streamable HTTP clients.

Tools reference

Full list of MCP tool names grouped by domain.