Changelog

Track changes to the PowerPost API. Subscribe to updates via webhooks or check this page periodically.

August 2026

Caption highlight chips include stroke — A span background grows by stroke.width so the outline stays inside the chip. See Video captions.
MCP captions match the REST API — powerpost_generate_content and powerpost_render_video_captions advertise the same request fields as the public endpoints, including video-caption style, spans, scale animations, and font size 10–320. See MCP and Video captions.
Image and video generation require a purchase — POST /api/v1/images/generate and POST /api/v1/videos/generate return 402 MEDIA_REQUIRES_PURCHASE until the account has bought credits. Signup credits still work for writing and publishing. See Errors.
Threads — threads-post is a first-class platform: generate, publish (text, image, video, carousel), comments, and post analytics. One topic tag comes from the first #tag in the caption. Optional reply_control on publish/schedule (everyone by default). See Post types and Publish settings.

Post type limits (docs + validation) — tiktok-photos accepts 1–35 images (was documented as 2–35). Caption length checks match platform rules: X uses weighted length (emoji/CJK = 2, URLs = 23); YouTube descriptions use UTF-8 bytes (5,000). Instagram/Facebook Stories are media-only, so content is optional there and ignored if sent. See Media, caption, and title limits.
Regenerate Content — POST /api/v1/content/generations/{id}/regenerate regenerates caption content for one platform on a completed generation, with optional free-text refinement feedback (e.g. "be more friendly"). Costs 1 credit. MCP tool: powerpost_regenerate_content. See Regenerate content.
List Published Posts — GET /api/v1/post-items returns published post items filtered by platform (one or many), a date-only range on posted_at (YYYY-MM-DD), and limit. MCP tool: powerpost_list_post_items. See List published posts.

Publish Settings on Publish & Schedule — POST /api/v1/posts/{id}/publish and POST /api/v1/posts/{id}/schedule now accept an optional items[] array with per-item settings (TikTok privacy, YouTube visibility). Items omitted from the array publish with defaults (TikTok SELF_ONLY, YouTube private). See Publish settings reference.

Post Item Analytics — GET /api/v1/post-items/{id}/analytics returns the latest views, likes, and comments snapshot for a post item. Each item is polled once a day for up to 90 days after posting; check fetched_at to see how fresh the numbers are.

Video Generation API — Generate AI videos via POST /videos/generate with text-to-video and image-to-video support. Three models available: Kling 3.0 Pro, Veo 3.1, and Runway Gen-4.5
Source URLs — Pass source_urls in content generation requests to give the AI website context for better captions
Video Webhooks — video_generation.completed and video_generation.failed events now available

The PowerPost API v1 is now available. This release includes:

Content Generation — Generate platform-optimized captions from text, images, or video
Image Generation — Create AI images from prompts, references, or existing captions
Media Upload — Upload images (JPEG, PNG, WebP) and videos (MP4, MOV)
Posts & Publishing — Create posts and publish to Instagram, TikTok, X, YouTube, Facebook, and LinkedIn
Credit System — Pay-per-use billing with per-operation credit costs
Webhooks — Receive notifications when generation and publishing jobs complete
Deep Research Mode — Extended research for higher engagement content
Custom Writing Styles — Apply your brand voice via the API

Track changes to the PowerPost API. Subscribe to updates via webhooks or check this page periodically.

Caption highlight chips include stroke — A span background grows by stroke.width so the outline stays inside the chip. See Video captions.
MCP captions match the REST API — powerpost_generate_content and powerpost_render_video_captions advertise the same request fields as the public endpoints, including video-caption style, spans, scale animations, and font size 10–320. See MCP and Video captions.
Image and video generation require a purchase — POST /api/v1/images/generate and POST /api/v1/videos/generate return 402 MEDIA_REQUIRES_PURCHASE until the account has bought credits. Signup credits still work for writing and publishing. See Errors.
Threads — threads-post is a first-class platform: generate, publish (text, image, video, carousel), comments, and post analytics. One topic tag comes from the first #tag in the caption. Optional reply_control on publish/schedule (everyone by default). See Post types and Publish settings.

Post type limits (docs + validation) — tiktok-photos accepts 1–35 images (was documented as 2–35). Caption length checks match platform rules: X uses weighted length (emoji/CJK = 2, URLs = 23); YouTube descriptions use UTF-8 bytes (5,000). Instagram/Facebook Stories are media-only, so content is optional there and ignored if sent. See Media, caption, and title limits.
Regenerate Content — POST /api/v1/content/generations/{id}/regenerate regenerates caption content for one platform on a completed generation, with optional free-text refinement feedback (e.g. "be more friendly"). Costs 1 credit. MCP tool: powerpost_regenerate_content. See Regenerate content.
List Published Posts — GET /api/v1/post-items returns published post items filtered by platform (one or many), a date-only range on posted_at (YYYY-MM-DD), and limit. MCP tool: powerpost_list_post_items. See List published posts.

Publish Settings on Publish & Schedule — POST /api/v1/posts/{id}/publish and POST /api/v1/posts/{id}/schedule now accept an optional items[] array with per-item settings (TikTok privacy, YouTube visibility). Items omitted from the array publish with defaults (TikTok SELF_ONLY, YouTube private). See Publish settings reference.

Post Item Analytics — GET /api/v1/post-items/{id}/analytics returns the latest views, likes, and comments snapshot for a post item. Each item is polled once a day for up to 90 days after posting; check fetched_at to see how fresh the numbers are.

Video Generation API — Generate AI videos via POST /videos/generate with text-to-video and image-to-video support. Three models available: Kling 3.0 Pro, Veo 3.1, and Runway Gen-4.5
Source URLs — Pass source_urls in content generation requests to give the AI website context for better captions
Video Webhooks — video_generation.completed and video_generation.failed events now available

The PowerPost API v1 is now available. This release includes:

Content Generation — Generate platform-optimized captions from text, images, or video
Image Generation — Create AI images from prompts, references, or existing captions
Media Upload — Upload images (JPEG, PNG, WebP) and videos (MP4, MOV)
Posts & Publishing — Create posts and publish to Instagram, TikTok, X, YouTube, Facebook, and LinkedIn
Credit System — Pay-per-use billing with per-operation credit costs
Webhooks — Receive notifications when generation and publishing jobs complete
Deep Research Mode — Extended research for higher engagement content
Custom Writing Styles — Apply your brand voice via the API