Onepostly MCP
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Remote MCP server to publish, schedule, and measure posts across X, Instagram, Facebook, Threads, LinkedIn, TikTok, YouTube, Pinterest, and Reddit.
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- Categories
- Marketing, Other, Automation
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Remote MCP server for Onepostly — publish, schedule, and measure from any MCP client.
Onepostly provides a remote MCP server over Streamable HTTP.
https://mcp.onepostly.com/mcpis also available as an alias.
Authenticate with a workspace API key. Create one inDashboard → Settings → API keys.
For clients that cannot set headers (e.g., Claude.ai web), use the query parameter:
https://mcp.onepostly.com?access_key=op_YOUR_KEY
read_onlykeys can calllist_andget_tools; write tools returnFORBIDDEN.
publish_postandschedule_postshare the same validation asPOST /v1/posts. X usage is billed pass-through from your wallet.402 INSUFFICIENT_WALLETmeans top up inSettings → Billing.
{ "mcpServers": { "onepostly": { "url": "https://mcp.onepostly.com", "headers": { "Authorization": "Bearer op_YOUR_KEY" } } } }
https://mcp.onepostly.com?access_key=op_YOUR_KEY
npx @modelcontextprotocol/inspector@latest
- URL:https://mcp.onepostly.com
- Header:Authorization: Bearer op_YOUR_KEY
- Header:MCP-Protocol-Version: 2025-11-25
{ "tool": "publish_post", "arguments": { "text": "Hello from Onepostly", "destinations": [{ "connectionId": "YOUR_CONNECTION_ID" }] } }
{ "tool": "schedule_post", "arguments": { "text": "Hello tomorrow", "scheduledFor": "2026-08-10T09:00:00", "timezone": "America/New_York", "destinations": [{ "connectionId": "YOUR_CONNECTION_ID" }] } }
- Transport: Streamable HTTP (POSTJSON-RPC 2.0).
- Version:2025-11-25(MCP-Protocol-Versionheader andparams._meta["io.modelcontextprotocol/protocolVersion"]).
- Discovery:server/discoverreturnssupportedVersionsandcapabilities.
- No server-initiated notifications; pollget_post_statusor usewebhooks.
- Rate and wallet limits are identical to the REST API.
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