letmepost.dev
OSS Social Media API for developers and AI agents
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Open-source API that lets you publish a single post to multiple social platforms in one call.
- for
- Developers and AI agents that need cross-platform social publishing.
- pricing
- freemium
- license
- Apache-2.0
Key features
- One-request multi-target publish — Send text and target platforms once and receive per-platform outcomes.
- Preflight validation — 80 local rules check content before any platform receives the request, returning clear error details.
- Idempotent writes — Idempotency-Key ensures safe retries for up to 24 hours without duplicate posts.
- Reviewed OAuth apps — Meta and LinkedIn app reviews are handled by letmepost, so you connect via a ready-to-use OAuth flow.
- Open source & self-hostable — Apache-2.0 code; you can run the same image yourself with BYO Postgres + Redis.
- Native MCP server — MCP endpoint and CLI let AI agents drive the full API surface directly.
- Flat per-org pricing — Charges are based only on published posts, not per profile or seat.
Use cases
- Automate cross-post of marketing updates from a SaaS dashboard.
- Enable an AI agent to publish status updates on Bluesky, X and Pinterest.
- Run scheduled social campaigns for multiple client accounts from a single script.
- Integrate social publishing into CI/CD pipelines for release announcements.
letmepost.dev pricing
- Free$050 posts / month · Full API surface · Unlimited profiles
- Pro$79/month5,000 posts / month · Indie SaaS & agencies · Unlimited team members
- Business$299/month25,000 posts / month · Embedded social · SLA & white-label OAuth
- Self-host$0Unlimited posts · Apache-2.0 code · BYO Postgres + Redis
letmepost.dev vs alternatives
| letmepost.dev |  Unified MCP Server |  Pocketenv |  Spawned |  SuperAGI Cloud | |
|---|---|---|---|---|---|
| Best for | Single-call multi-platform posting | General MCP integration | Agent sandboxing | Deploying web services | AI agent orchestration |
| Pricing | Freemium | Subscription | Free | Free | Free |
| DevHunt upvotes | 3 | 29 | 73 | 68 | 43 |
| Launched | Jun 2026 | Jan 2026 | Apr 2026 | Jul 2026 | Jan 2023 |
- letmepost.dev vs Unified MCP Server: Provides a generic MCP server for many tools, but not a dedicated social-post API.
- letmepost.dev vs Pocketenv: Universal sandbox runtime for agents, unrelated to social publishing.
- letmepost.dev vs Spawned: Vercel-like deployment platform, not an API for social media posting.
- letmepost.dev vs SuperAGI Cloud: Focuses on building autonomous AI agents, not on cross-platform social posting.
letmepost.dev FAQ
What platforms are live today?+
Bluesky, X and Pinterest are fully operational; Instagram, Facebook, Threads and LinkedIn are in review, TikTok is pending.
How does letmepost handle errors?+
Preflight runs locally and returns a structured error with rule, platform version and remediation; no silent 500s.
Is there a free tier?+
Yes, the Free plan provides 50 posts per month with the complete API and no credit-card required.
Can AI agents use the API?+
Yes, a native MCP server and CLI let any MCP-aware client (e.g., Claude, Cursor) drive the full surface.
Do I need to manage Meta app review myself?+
No, letmepost is the reviewed app of record; you connect via its OAuth flow.
Summarized by DevHunt from letmepost.dev · Sep 28, 2026. Details may change; check the official site.
