Postiz

OpenPost is an open-source social media management platform that can be hosted by its service or self-hosted with Docker Compose. It combines post composition, per-account adaptation and previews, image and carousel design, multitrack video editing, scheduling queues and calendars, inbox management, analytics, media storage, and publishing across supported social platforms. Its workflows can turn GitHub releases, RSS feeds, or scheduled prompts into drafts. Visual workflows connect steps on a canvas and can use AI, conditions, HTTP requests, and JavaScript; users review generated posts before scheduling. OpenPost also provides API, SDK, CLI, MCP, and n8n interfaces for creating drafts, scheduling posts, and checking publishing results. It is written with Go, SvelteKit, and Expo and is licensed under AGPL-3.0-only.

LightPost is a self-hosted social media scheduler for publishing or scheduling posts from one dashboard. It connects multiple accounts, supports drafts, per-account text and image selection, previews, alt text, delivery tracking, retries, persistent queues, and YouTube MP4 uploads; supported destinations include Bluesky, Mastodon, X, Instagram, Threads, Discord, LinkedIn, Telegram, Facebook Pages, and YouTube, while TikTok, Pinterest, and Google Business Profile are under development. The application runs as one Python process with SQLite and a plain HTML/CSS/JavaScript interface, with no external database, frontend bundler, or AI dependency. It stores encrypted credentials and workspace data locally, can run on Linux or macOS, and includes an optional systemd service for Linux. It is licensed under MIT; platform API fees, permissions, credential expiry, account eligibility, and platform-specific media limits still apply.

Paperclip is an open-source, self-hosted control plane for organizing and running teams of AI agents. Its Node.js server and React UI let users define company goals, assign agents roles and tasks, and monitor work, budgets, approvals, costs, and audit activity from a shared dashboard. Agents run through scheduled or event-based heartbeats. The system maintains organization charts, goal ancestry, task dependencies, persistent session state, isolated workspaces, scoped secrets, runtime skill injection, and atomic task checkout with budget enforcement. It supports agent adapters and runtimes including Claude Code, Codex, Cursor, Bash, HTTP/webhook agents, and plugins; recurring routines can create tracked issues and wake assigned agents. Paperclip supports multiple isolated companies in one deployment, governance and approval gates, cost hard stops, agent pause/resume/termination, company export and import with secret scrubbing, and optional OpenTelemetry and Sentry integrations. It can be installed through the Paperclip CLI or run from source; local setups use embedded PostgreSQL and file storage, while production deployments can use an external PostgreSQL database. The project is distributed under the MIT license.

Postman is an end-to-end API platform with a desktop app for building and testing REST APIs, plus cloud features for API engineering. Its capabilities include an API context graph that maps services, endpoints, implementations, calls, and related data, with information grounded in source code or production telemetry. Postman also provides AI-agent capabilities and a CLI distributed through npm as `postman-cli`; its website describes the platform as supporting API engineering for agents.

SnagTime is a free, self-hostable scheduling application that provides account and workspace management, event types, availability rules, public booking links, time-zone handling, custom booking questions, rescheduling, cancellation, and recovery links. It checks Google Calendar free/busy status and can create calendar events, sends organizer and invitee messages through SMTP, and supports Stripe Checkout in test mode with webhook confirmation and refund handling. The local demo uses SQLite, a local calendar adapter, a local email inbox, and stub payments; production deployments use a PostgreSQL architecture with a web service, background worker, persistent database, and webhook endpoints. The application is a Next.js project with Prisma schemas and migrations, distributed under the MIT License. It is intended for self-hosting rather than as a managed service; external Google Calendar, SMTP, Stripe, hosting, domain, and database services must be supplied and configured by the operator.