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Onepostly (Marketing & SEO): One API to publish, engage & measure across social media platforms. Free plan available. Pricing: from $0/mo. (data verified August 2026)
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Onepostly is a social media management API that lets you connect once and publish content across X, Instagram, Facebook, Threads, TikTok, YouTube, LinkedIn, Reddit, Pinterest, and more. It solves the problem of managing multiple social accounts by providing a single REST API, MCP server, and official AI agent skills.
It's built for solo builders, indie hackers, agencies, and high-volume teams who need programmatic posting. It's also ideal for AI agents and developers using Claude, Cursor, Codex, or similar tools. If you want a GUI-based scheduler with manual posting, this isn't for you—it's API-first.
Use Onepostly to automate cross-posting from your app, set up scheduled posts via AI agents, or build a multi-platform content distribution pipeline. The API returns per-platform delivery status, and webhooks notify you of results.
With a free forever plan (1 social account, unlimited posts & analytics), it offers all API access and webhooks without a credit card. Paid plans add more connected accounts, team members, and priority support.
Editorial score from our review methodology — not user ratings.
Onepostly pricing: from $0/mo.
Free forever. Includes 1 connected social account, unlimited posts, unlimited scheduling, unlimited analytics, all API access, and webhooks for delivery status. No credit card required.
Everything in Starter, plus up to 15 connected accounts, higher API rate limits, and email support.
Everything in Growth, plus up to 50 connected accounts, team members, and priority support.
Everything in Scale, plus up to 150 connected accounts, team members, and dedicated support.
Yearly billing available with 20% savings.