Binary file upload
Send files directly from disk, a browser upload flow, or your backend and receive Postly-hosted media for publishing.
REST API + MCP for complete publishing workflows
One API for your entire publishing workflow.
Add multi-platform publishing, scheduling, flexible media uploads, analytics, and AI-agent workflows to your product without building every social integration yourself.
API and MCP access included with Postly ProUnlimited workspaces and team members
Why teams choose Postly
One integration surface
Create posts, store media, schedule campaigns, inspect status, and retrieve analytics through one publishing layer.
Media your pipeline already has
Send binary files, URLs, Base64, data URLs, or inline media without redesigning your asset flow.
Postly keeps the platform complexity
Connected accounts, workspace boundaries, channel rules, and delivery requirements remain inside Postly.
Built for apps and AI agents
Use REST for custom products or MCP for conversational and autonomous publishing workflows.
Media ingestion USP
Send media in the format your system already has.
Upload generated or locally processed media without first hosting it on a public server. Postly accepts the practical formats apps, agents, and automation pipelines already produce.
Ideal for AI-generated images and videos
Works with browser and server-side uploads
Fits CMS, DAM, CDN, and local workflows
Reduces temporary hosting and asset shuffling
Public media URL
Import assets already stored in your CMS, DAM, CDN, cloud storage, or generated-media service.
Base64 or data URL
Send media already held in memory without first creating a separate public hosting step.
Inline media import
Store and attach media during post creation or updates, keeping the publishing flow compact.
The complete layer
A publishing API, not just a post endpoint
Postly combines destination discovery, media ingestion, publishing, scheduling, validation, status, and analytics so the pieces work as one system.
One integration, many destinations
Publish through connected social, blog, email, newsletter, messaging, and business-profile destinations from one infrastructure layer.
Workspace-aware routing
Discover organizations, workspaces, accounts, pages, channels, and audience groups before a publishing request is sent.
Complete publishing lifecycle
Create drafts, publish now, schedule ahead, run recurring workflows, monitor status, and inspect failures.
Platform-aware validation
Use Postly's destination-specific controls and media rules instead of rebuilding platform logic in every application.
Choose your integration
REST for products. MCP for AI agents.
Use the same Postly publishing infrastructure through the integration style that matches your product or workflow.
Developer REST API
Build it into your product
Best for SaaS products, internal tools, backend services, middleware, custom applications, and no-code automation platforms.
Workspace and account discovery
Post creation and updates
Immediate and scheduled publishing
Recurring publishing workflows
Media uploads and reuse
Analytics and publishing status
Signed webhook events
Platform-specific settings
Model Context Protocol
Give AI agents real publishing tools
Connect ChatGPT, Claude, Gemini, custom agents, IDE assistants, and other MCP-compatible systems to authorized Postly workspaces.
ChatGPT MCP Integration
Connect ChatGPT to Postly so conversations can create drafts, prepare campaigns, retrieve analytics, and trigger approved publishing workflows.
Claude MCP Integration
Use Claude with Postly MCP to plan content, generate posts, review performance, manage schedules, and support publishing workflows.
Gemini MCP Integration
Turn Gemini into a Postly-connected publishing assistant for content creation, scheduling, campaign support, and analytics review.
Custom MCP Clients
Connect any MCP-compatible assistant, agent, IDE, or multi-agent system to Postly with secure workspace-aware access.
AI Publishing & Scheduling
Create drafts, validate content, queue posts, schedule campaigns, publish approved content, and manage multi-platform workflows through MCP.
Cross-Platform Publishing
Publish and manage content across social, blog, email, newsletter, and business profile channels from one MCP-connected workflow.
Easy to start
From API key to first post in minutes.
Keep onboarding focused: authenticate, discover the right workspace and destinations, then publish using media your workflow already has.
01
Generate an API key
Create secure access for your application, automation, or agent.
02
Discover destinations
Resolve the workspace, connected accounts, pages, and channels.
03
Publish or schedule
Upload media, create the post, and track its publishing status.
API capabilities
The infrastructure your workflow needs
These capabilities are loaded from Pricing.json so the page stays aligned with the features Postly currently offers.
Multi-Platform Publishing
Publish immediately or schedule content across multiple connected social channels through one integration instead of maintaining separate APIs for every platform.
Learn moreFlexible Media Uploads
Send images and videos as direct file uploads, public URLs, or Base64 data, making it easy to publish media from apps, servers, local workflows, and AI agents.
Learn moreBase64 Media Support
Upload generated or locally processed media without first hosting it on a public server, reducing infrastructure requirements and simplifying automated publishing workflows.
Learn moreMCP Integrations
Connect ChatGPT, Claude, custom AI agents, and MCP-compatible apps directly to Postly for content creation, media uploads, scheduling, publishing, and workflow automation.
Learn moreFaster Integration
Add reliable multi-platform social publishing to your product or workflow without spending months building and maintaining individual social network integrations.
Learn moreWorkspaces and Social Accounts
Retrieve workspaces and connected social accounts programmatically so every post is sent to the correct client, brand, and publishing destination.
Learn moreSigned Webhooks
Receive secure, real-time workflow events for created, scheduled, published, failed, and updated posts, with reliable delivery and retry handling.
Learn moreAPI Keys and Secure Access
Generate secure API keys for applications, AI agents, MCP clients, internal tools, and automation workflows with controlled access to Postly.
Learn moreSee all API capabilities
Developer REST API
Build custom integrations, SaaS features, middleware, publishing workflows, and automation systems using Postly's developer-friendly REST API.
Learn moreMedia and Post Management
Upload and reuse media, create posts, schedule campaigns, monitor publishing status, and manage content while keeping everything visible inside Postly.
Learn morePublishing Infrastructure
Use Postly as the execution layer for AI-powered social publishing, media handling, scheduling, approvals, automation, and delivery monitoring.
Learn moreGoogle Sheets Integration
Connect Google Sheets to Postly for spreadsheet-powered content creation, bulk scheduling, publishing, syncing, and workflow automation.
Learn moreNo-Code Automation Connectors
Connect Postly with Zapier, Make, n8n, Pipedream, and similar automation platforms using the same API and webhook infrastructure.
Learn moreBuilt for real products
Where Postly API creates leverage
Use Postly as the execution layer behind products, agents, internal systems, campaign tools, and automated content pipelines.
SaaSAI agentsAgenciesEnterprise toolsCMSDAMNo-codeInternal platforms
Add multi-platform publishing to a SaaS product
Let AI agents create, upload, schedule, and publish content
Trigger campaigns from a CMS, DAM, or internal platform
Build approval, scheduling, and status workflows
Run spreadsheet and no-code publishing automations
Create reporting and analytics experiences
Manage multiple brands and clients through workspaces
Keep the product experience. Let Postly handle the publishing complexity.
Postly manages connected accounts, workspace boundaries, destination requirements, media validation, scheduling, publishing status, and dashboard visibility—so your team can focus on the workflow your customers actually see.
Build faster
Stop rebuilding social publishing infrastructure.
Connect once and give your application or AI agents a complete, workspace-aware publishing workflow.