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PostLake

SaaS

Social media API and hosted MCP server for AI agents and developers, covering publishing, scheduling, engagement and analytics across nine networks with approvals built in.

postlake.dev
PostLake homepage screenshot

About PostLake

PostLake is a hosted social media API aimed at AI agents and developers who need one interface instead of separate integrations for each network. Through a single REST API or a hosted MCP server, an agent can observe, publish, engage with and measure content, while the agent itself supplies the intelligence.

The service is built around agent safety. Idempotency keys mean a retry never posts twice, per-network failures come back with a reason and a suggested fix rather than a silent success, and live network rules, such as TikTok's photo limit, are checked before a post ships. Agents work as drafts until you approve them, and you can cap them by brand, network and daily post count, with an audit trail.

The listed networks are X, LinkedIn, Instagram, TikTok, Facebook, Bluesky, YouTube Shorts, Pinterest and Threads, though some are marked as coming soon. A free tier needs no credit card, credentials are encrypted, and pricing is usage-based.

Key features

  • Unified REST API for posting to several networks
  • Hosted MCP server for AI agents
  • Idempotency keys that prevent duplicate posts
  • Per-network error reasons with suggested fixes
  • Human approval and daily caps per agent
  • Audit trail and encrypted credentials

Good fit for

  • Letting AI agents publish posts under approval rules
  • Developers adding social publishing to an app without per-network integrations
Tags
social-media
api
mcp
ai-agents
developer-tools
scheduling
idempotency

PostLake: questions and answers

What is PostLake used for?
PostLake is a social media API and hosted MCP server for AI agents and developers, covering publishing, scheduling, engagement and analytics across nine networks with approvals built in. It is a good fit for letting AI agents publish posts under approval rules and developers adding social publishing to an app without per-network integrations.
Is PostLake free?
Yes. PostLake has a free plan. Free gives 20 credits a month. Paid plans run from Starter at $13 to Business at $225 per month, and one-time credit packs start at $9.
Is PostLake open source?
No. PostLake is proprietary (closed-source) software and can't be self-hosted. In the API Tools category, open-source options include Nango, Kong and Tyk.
What are some alternatives to PostLake?
Other SaaS products in the API Tools category include PostPeer, 0mcp and CreatorCrawl.

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