Social Publisher vs PostCaster

Social Publisher helps WordPress administrators create and publish social posts without jumping between platform dashboards. Write the message once, choose the connected destinations, prepare an image, generate titles or captions with Gemini when you want help, and publish from WordPress. The plugin keeps each network connection in its own setup screen, shows clear connected/disconnected states, and keeps provider messages available in Logs when something needs attention. What you can do in Free Publish manually from the dedicated Publisher tab in Social Publisher. Publish to multiple connected destinations in one run. Use a clean Publisher screen for title, content, link, hashtags, image, alt text, and destination selection. Use the built-in image workflow with Original, square, portrait, and landscape formats. Connect networks from dedicated setup panels with quick guides, OAuth actions, tests, and disconnect controls. Use the optional Gemini-powered AI composer to generate titles, captions, hashtags, or a complete post. Search WordPress posts, pages, and WooCommerce products to use as AI context. Read, copy, export, and clear sanitized Logs. Use a dedicated History tab with permanent destination-by-destination records, search, network/status filters, WordPress source links, account details, media/AI/source badges, provider results, errors, detail panels, and pagination. Use Settings for AI keys, model/language preferences, UTM tracking, failure-only email alerts, and plugin data cleanup behavior. Free network destinations Social Publisher Free includes connection and publishing support for: Bluesky Mastodon Tumblr Pinterest Threads Instagram LinkedIn personal profiles Blogger Telegram Facebook Pages Support depends on each provider’s account type, API permissions, app review status, and platform rules. LinkedIn publishing in this Free release is limited to personal profiles. Optional Pro destinations Social Publisher Pro adds these destinations to the same publishing workflow: YouTube / Shorts Discord Remote WordPress Custom Webhook Pro availability, account permissions, privacy options, and media support depend on each provider’s API rules. When Social Publisher Pro supplies a Multiple images / Carousel payload, compatible clients publish the full media set where the provider supports it, including Facebook Pages, Bluesky, Instagram, Threads, Blogger, and Telegram albums. AI generation The AI composer is included in the Free plugin. It uses your own Gemini API key, saved locally in your WordPress database. AI runs only when an administrator clicks an AI generation button. You can: Generate a title. Generate post content. Generate hashtags. Generate a complete social post. Add a private prompt for the current publication. Use WordPress content search as factual context. Choose the Gemini model and default generation language in Settings. Gemini is optional. Social Publisher can connect networks, publish posts, and show logs without a Gemini API key. Professional workflow Open Connections and configure one network. Test the connection or complete OAuth when the network provides it. Open Settings and connect AI if you want Gemini generation. Open Publisher, write or generate the content, prepare media, and choose connected destinations. Publish, then review Logs for provider responses and diagnostics. Platform-specific connection tutorials and video guides are maintained on the CalliopeWP website so setup instructions can stay current without waiting for a plugin release. Visit: https://pluginswordpress.calliope.com.ar/calliope-social-publisher/ Privacy and local storage Provider credentials and tokens are stored locally in the WordPress database for the current site. Do not share them. Logs and admin messages are designed not to expose full tokens, secrets, authorization codes, passwords, bearer credentials, or API keys. Social Publisher does not track visitors, does not send telemetry, does not display advertising, does not add automatic credits, does not call provider APIs on normal admin page load, and does not execute remote code. Deleting the plugin preserves saved data by default. If you want WordPress to remove Social Publisher data when the plugin is deleted, enable the cleanup option in Settings before deleting the plugin. External services Social Publisher connects to external services only when a site administrator configures a provider, starts authorization, tests a connection, opens a supported share action, requests AI generation, or publishes content. No data is sent to a provider unless that integration is configured and used. Google Gemini / Google AI Used only when a site administrator saves a Gemini API key and clicks an AI generation button. Endpoint: https://generativelanguage.googleapis.com/ Data may include the selected Gemini model, site name, default generation language, current title, content, link, hashtags, selected WordPress post/page/product context, per-publication AI prompt, and requested generation field. The Gemini API key is stored locally in the WordPress database. Google APIs Terms of Service: https://developers.google.com/terms Google Privacy Policy: https://policies.google.com/privacy Gemini API documentation: https://ai.google.dev/gemini-api/docs Bluesky Used for authentication, media upload, and post creation. Endpoint: https://bsky.social/xrpc/ Data may include the configured handle, app password, post text, link, optional image/media data, and account identifiers. Terms: https://bsky.social/about/support/tos Privacy policy: https://bsky.social/about/support/privacy-policy Mastodon Used for OAuth/app registration, account validation, media upload/status checks, and publishing on the administrator-selected Mastodon instance. Endpoint: the selected public HTTPS Mastodon server. Data may include the instance host, callback details, OAuth app data, authorization code, client credentials, access token, status text, link, visibility, and optional media files. Localhost, private/reserved IPs, ambiguous hosts, and non-HTTPS instance URLs are rejected. Terms and privacy policies are published by each Mastodon instance. Examples: https://mastodon.social/terms https://mastodon.social/privacy-policy Tumblr Used for OAuth, blog validation, and publishing. Endpoints: https://www.tumblr.com/oauth/ https://api.tumblr.com/v2/ Data may include Consumer Key/Secret, OAuth verifier/callback data, token/secret, blog identifier, title/text, link, tags, and optional media data. Terms: https://www.tumblr.com/policy/en/terms-of-service Privacy policy: https://www.tumblr.com/privacy/en Pinterest Used for OAuth, board selection, sandbox or production validation, and Pin publishing. Endpoints: https://api.pinterest.com/v5/ https://api-sandbox.pinterest.com/v5/ Data may include App ID/Secret, callback URL, authorization code, requested scopes, token data, Pin title/description, destination link, selected board, and optional image URL/media data. Terms: https://policy.pinterest.com/en/terms-of-service Developer/API terms: https://developers.pinterest.com/terms/ Privacy policy: https://policy.pinterest.com/en/privacy-policy Threads Used for OAuth, token exchange/refresh, account validation, media containers, status checks, and publishing. Endpoints: https://threads.net/oauth/ https://graph.threads.net/ Data may include App ID/Secret, callback URL, authorization code, scopes, access token data, post text, link, media URL/data, container IDs, and account identifier. Meta Platform Terms: https://developers.facebook.com/terms/dfc_platform_terms/ Threads API documentation: https://developers.facebook.com/docs/threads/ Meta Privacy Policy: https://www.facebook.com/privacy/policy/ Instagram Used for OAuth, token exchange, account validation, media containers, and publishing when permissions allow it. Endpoints: https://www.instagram.com/oauth/ https://api.instagram.com/oauth/ https://graph.instagram.com/ Data may include Client/App ID/Secret, callback URL, authorization code, scopes, token data, caption/text, link when supported, media URL/data, container IDs, and account identifier. Meta Platform Terms: https://developers.facebook.com/terms/dfc_platform_terms/ Meta Privacy Policy: https://www.facebook.com/privacy/policy/ LinkedIn Used for OAuth, personal profile detection, validation, image upload preparation/upload, and publishing to a personal profile. Endpoints: https://www.linkedin.com/oauth/v2/ https://api.linkedin.com/ Data may include Client ID/Secret, callback URL, authorization code, member scopes, token data, personal profile author URN, post text, link, optional image data, upload URL data, and access token. Company pages and organization publishing are not documented as stable Free destinations in this release. User Agreement: https://www.linkedin.com/legal/user-agreement API Terms of Use: https://legal.linkedin.com/api-terms-of-use Privacy policy: https://www.linkedin.com/legal/privacy-policy Blogger / Google Used for OAuth, token refresh, blog selection, tests, and publishing to Blogger. Endpoints: https://accounts.google.com/o/oauth2/v2/auth https://oauth2.googleapis.com/token https://www.googleapis.com/blogger/v3/ Data may include Client ID/Secret, callback URL, authorization code, Blogger scopes, refresh/access token data, blog ID, post title/content, and labels when used. Google APIs Terms of Service: https://developers.google.com/terms Google Terms of Service: https://policies.google.com/terms Google Privacy Policy: https://policies.google.com/privacy Telegram Used for bot/chat validation and publishing. Endpoint: https://api.telegram.org/ Data may include Bot Token, chat ID, optional message thread/topic ID, post title/text, link, hashtags, and optional image URL/media data. Terms: https://telegram.org/tos Bot API documentation: https://core.telegram.org/bots/api Privacy policy: https://telegram.org/privacy Facebook Pages Used for OAuth, Page discovery, Page token resolution, tests, diagnostics, publishing, and the optional public Facebook share action. Endpoints: https://www.facebook.com/v20.0/dialog/oauth https://graph.facebook.com/v20.0/ Data may include App ID/Secret, callback URL, authorization code, scopes, token data, Page identifiers/names, selected Page token, post message, link, optional media data, and the Page URL when using the public share action. Meta Platform Terms: https://developers.facebook.com/terms/dfc_platform_terms/ Meta Privacy Policy: https://www.facebook.com/privacy/policy/

PostCaster publishes WordPress posts to Bluesky and Mastodon when a post goes live. It supports both site-wide accounts and personal author accounts, with previews, test posts, and per-post overrides on the post edit screen. This plugin is intended for editorial sites that want social posting to stay close to the WordPress publishing workflow. Key capabilities: Publish automatically when a post moves from unpublished to publish Use site-wide accounts in PostCaster > Global socials Let authors use their own accounts in PostCaster > My socials Preview the exact text before publishing Override the text per article Choose featured-image behavior per network Re-publish manually from the post edit screen when needed Quick start: Activate the plugin. Enable PostCaster in PostCaster > Settings. Choose which post types may be published automatically. Configure one or more site-wide accounts in PostCaster > Global socials. Send a test post for each configured network. Publish a test article and confirm the result on the target network. Supported networks: Bluesky Mastodon Permissions and publishing model: Editors and administrators can publish through configured global accounts. Authors can publish through their own personal accounts when personal publishing is enabled for them. A user who has access to both global and personal targets can choose which targets to use during manual publishing. If Co-Authors Plus is active, linked co-authors are also recognized for personal publishing. Templates and previews: The default message template is based on post title and URL. You can set a general template, network-specific templates, and post-specific overrides. The post edit screen shows previews for the currently available publish targets. If the final message is still too long for a network, PostCaster skips that target and stores an error on the article. For template details and examples, see docs/templates.md in the plugin repository. Troubleshooting highlights: Always use the built-in test-post buttons after changing credentials. If a network is enabled but not posting, first check credentials and article-level errors. If encrypted credentials can no longer be read, re-save them in Global socials or My socials. Publishing runs through Action Scheduler in the background; low-traffic sites still benefit from a real server cron job or scheduled task for reliable timing. External services: PostCaster connects to external social networks only after an administrator or user explicitly configures that network and saves the required credentials. When configured, PostCaster may send: text rendered from post fields and templates featured image bytes and alt text the configured account identifiers required by that network Relevant service documentation and terms: Bluesky developer docs: https://docs.bsky.app/ Bluesky terms: https://bsky.social/about/support/tos Mastodon API docs: https://docs.joinmastodon.org/api/ Privacy note: PostCaster does not send usage analytics or telemetry to the plugin author. Network requests are only made to the configured social networks for test posts and actual publishing.