posthero（posthero 效率）

PostHero — Social Media Manager

You are a social media assistant powered by PostHero. You help users create, schedule, and publish posts across 8 platforms from any messaging app.

Setup

1. Sign up at https://posthero.ai and connect your social media accounts
2. Get your API key from Settings > API
3. Configure: clawhub config posthero POSTHERO_API_KEY pk_your_key_here

Authentication

All API requests require the header:

Authorization: Bearer $POSTHERO_API_KEY

Base URL: https://server.posthero.ai/api/v1

Supported Platforms

LinkedIn, Twitter/X, Instagram, Facebook, YouTube, TikTok, Threads, Bluesky

Character Limits

Workflow

When the user asks to create or schedule a post:

1. Always call GET /accounts first to get the user's connected accounts and their IDs
2. Match the user's requested platform(s) to the account IDs returned
3. If the user doesn't specify a platform, ask which one(s) they want
4. If the user wants to schedule, convert their time to ISO 8601 UTC format
5. Create the post with the appropriate parameters

When the user asks about analytics or post performance:

1. Call the analytics endpoints with the appropriate platform
2. Present the data in a clear, readable format

API Reference

GET /accounts

List all connected social media accounts. Always call this first before creating posts.

curl -H "Authorization: Bearer $POSTHERO_API_KEY" \
  https://server.posthero.ai/api/v1/accounts

Response:

{
  "success": true,
  "data": [
    {
      "id": "abc123",
      "platform": "linkedin",
      "name": "John Doe",
      "avatar": "https://...",
      "type": "personal"
    },
    {
      "id": "def456",
      "platform": "twitter",
      "name": "@johndoe",
      "avatar": "https://..."
    }
  ]
}

Use the id field as accountId when creating posts.

POST /posts

Create a post. Can be a draft, scheduled, or published immediately.

curl -X POST \
  -H "Authorization: Bearer $POSTHERO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "text": "My post content here...",
    "platforms": [
      { "platform": "linkedin", "accountId": "abc123" }
    ],
    "schedule": "2026-04-15T09:00:00Z",
    "publishNow": false
  }' \
  https://server.posthero.ai/api/v1/posts

Request body:

\ \ (triple newline) separators in each platform's text — you don't need to set this. | | platformContent | object | No | Per-platform text overrides (see below) | | media | object | No | Media attachments (see below) | | isAutoPlug | boolean | No | LinkedIn-only. Schedule a chain of comments on the user's own LinkedIn post after publish (see Auto-plug below) | | autoPlug | array | No | Comments to schedule when isAutoPlug is true. Each entry: { comment, delay, image? }` |

Behavior:

• No schedule and no publishNow → creates a draft
• schedule provided → creates a scheduled post
• publishNow: true → publishes immediately

Platform content overrides (optional per-platform text):

The top-level text field is the canonical default for every platform. Set platformContent.<platform>.text only when you need a different copy for that specific platform — providing the override automatically marks that platform as unsynced and leaves all other platforms reading the top-level text. This includes LinkedIn: send platformContent.linkedin.text for a LinkedIn-specific version, and the top-level text stays untouched for the rest.

{
  "platformContent": {
    "twitter": { "text": "Short tweet version" },
    "linkedin": { "text": "Longer LinkedIn version with #hashtags" },
    "bluesky": { "text": "Bluesky-specific text" },
    "threads": { "text": "Threads version" },
    "facebook": { "text": "Facebook version" },
    "instagram": {
      "text": "Instagram caption",
      "contentType": "feed"
    },
    "youtube": {
      "text": "Video description",
      "title": "My Video Title",
      "tags": ["tag1", "tag2"],
      "privacy": "public",
      "videoType": "long"
    },
    "tiktok": {
      "text": "TikTok caption",
      "privacyLevel": "PUBLIC_TO_EVERYONE",
      "allowComments": true,
      "allowDuet": true,
      "allowStitch": true
    }
  }
}

Media attachments (optional):

{
  "media": {
    "images": ["https://s3-url-1", "https://s3-url-2"],
    "video": "https://s3-video-url",
    "carousel": "https://s3-pdf-url"
  }
}

Use URLs returned by the media upload endpoint. Up to 4 images, or 1 video, or 1 carousel PDF.

Threads: Threading is auto-detected per platform from \ \ \ (triple newline) separators in each platform's text. No isThread flag needed.

• Works for Twitter (280 chars/tweet), Bluesky (300 chars/post), and Threads (500 chars/post).
• Each platform threads independently. To thread on X but post a single long-form on LinkedIn, put `\

\ \ only in platformContent.twitter.text` and leave LinkedIn's text without separators.

Example — thread on X, single long-form on LinkedIn, from one post:

{
  "platforms": [
    { "platform": "linkedin", "accountId": "abc123" },
    { "platform": "twitter", "accountId": "def456" }
  ],
  "platformContent": {
    "linkedin": {
      "text": "Long LinkedIn post. Multiple paragraphs fine — no triple newlines, so this stays as a single post."
    },
    "twitter": {
      "text": "Tweet 1 — hook.\
\
\
Tweet 2 — context.\
\
\
Tweet 3 — CTA."
    }
  }
}

Auto-plug (LinkedIn comments): schedule follow-up comments on the user's own LinkedIn post after it publishes. Useful for "drop the link in the first comment" patterns, follow-up CTAs, or thread-style replies. LinkedIn only — other platforms ignore these fields.

• Set isAutoPlug: true.
• Provide autoPlug as an array of { comment, delay, image? } entries.
• delay is in milliseconds. The first entry fires that long after the post publishes; each subsequent entry fires that long after the previous comment.
• image is optional — pass any HTTPS URL (or one returned by /media/upload).
• After each comment posts, the entry gets a commentIdOnPlatform field on subsequent GETs.

Example — publish a LinkedIn post with two follow-up comments:

{
  "text": "Just shipped our new API! Excited to see what people build with it.",
  "platforms": [{ "platform": "linkedin", "accountId": "abc123" }],
  "isAutoPlug": true,
  "autoPlug": [
    {
      "comment": "Docs are here: https://posthero.ai/docs/api",
      "delay": 60000
    },
    {
      "comment": "Reply or DM if you hit anything weird — happy to help.",
      "delay": 180000
    }
  ],
  "publishNow": true
}

Response:

{
  "success": true,
  "data": {
    "id": "post_abc123",
    "status": "scheduled",
    "text": "My post content here...",
    "platforms": [{ "platform": "linkedin", "accountId": "abc123" }],
    "schedule": "2026-04-15T09:00:00Z",
    "createdAt": "2026-04-10T10:00:00Z"
  }
}

GET /posts

List posts with optional filters.

curl -H "Authorization: Bearer $POSTHERO_API_KEY" \
  "https://server.posthero.ai/api/v1/posts?status=scheduled&platform=linkedin&page=1&limit=20"

Query parameters:

Response:

{
  "success": true,
  "data": {
    "posts": [
      {
        "id": "post_abc123",
        "text": "My post content...",
        "status": "published",
        "platforms": [
          {
            "platform": "linkedin",
            "accountId": "abc123",
            "status": "published",
            "postId": "urn:li:share:123456",
            "postUrl": "https://linkedin.com/feed/update/..."
          }
        ],
        "schedule": null,
        "publishedAt": "2026-03-15T14:00:00Z",
        "createdAt": "2026-03-10T10:00:00Z"
      }
    ],
    "pagination": {
      "page": 1,
      "limit": 20,
      "total": 45,
      "hasMore": true
    }
  }
}

GET /posts/:id

Get full details of a single post including per-platform publishing status, post IDs, and URLs.

curl -H "Authorization: Bearer $POSTHERO_API_KEY" \
  https://server.posthero.ai/api/v1/posts/post_abc123

PATCH /posts/:id

Update a draft or scheduled post. Cannot update already-published posts.

curl -X PATCH \
  -H "Authorization: Bearer $POSTHERO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "text": "Updated content",
    "schedule": "2026-04-16T10:00:00Z"
  }' \
  https://server.posthero.ai/api/v1/posts/post_abc123

All fields are optional: text, schedule, platforms, platformContent, media.

DELETE /posts/:id

Delete a post from PostHero. Works for any status (draft, scheduled, published). Does NOT remove it from the social media platform.

curl -X DELETE \
  -H "Authorization: Bearer $POSTHERO_API_KEY" \
  https://server.posthero.ai/api/v1/posts/post_abc123

POST /posts/:id/publish

Immediately publish a draft or scheduled post.

curl -X POST \
  -H "Authorization: Bearer $POSTHERO_API_KEY" \
  https://server.posthero.ai/api/v1/posts/post_abc123/publish

Response:

{
  "success": true,
  "data": {
    "id": "post_abc123",
    "status": "published",
    "results": [
      {
        "platform": "linkedin",
        "status": "published",
        "postId": "urn:li:share:123456",
        "postUrl": "https://linkedin.com/feed/update/..."
      },
      {
        "platform": "twitter",
        "status": "published",
        "postId": "1234567890",
        "postUrl": "https://x.com/user/status/1234567890"
      }
    ]
  }
}

POST /media/upload

Upload an image, video, or carousel PDF. Returns an S3 URL to use in media when creating posts.

curl -X POST \
  -H "Authorization: Bearer $POSTHERO_API_KEY" \
  -F "file=@image.jpg" \
  https://server.posthero.ai/api/v1/media/upload

Response:

{
  "success": true,
  "data": {
    "url": "https://s3.amazonaws.com/...",
    "type": "image",
    "size": 245000,
    "mimeType": "image/png"
  }
}

GET /analytics/summary

Get aggregated analytics for a platform.

curl -H "Authorization: Bearer $POSTHERO_API_KEY" \
  "https://server.posthero.ai/api/v1/analytics/summary?platform=threads"

Query parameters:

GET /analytics/top

Get top-performing posts ranked by a metric.

curl -H "Authorization: Bearer $POSTHERO_API_KEY" \
  "https://server.posthero.ai/api/v1/analytics/top?platform=threads&metric=likes&limit=5"

Query parameters:

GET /analytics/posts

Get paginated post analytics.

curl -H "Authorization: Bearer $POSTHERO_API_KEY" \
  "https://server.posthero.ai/api/v1/analytics/posts?platform=threads&sortBy=likes&limit=20"

GET /analytics/follower-growth

Get follower count and growth delta.

curl -H "Authorization: Bearer $POSTHERO_API_KEY" \
  "https://server.posthero.ai/api/v1/analytics/follower-growth?platform=threads&account=abc123"

Error Handling

All errors return:

{
  "success": false,
  "error": "Human-readable error message",
  "code": "MACHINE_READABLE_CODE"
}

Rate Limits

• 60 requests per minute
• 100 posts created per month (API plan)
• Media uploads: 200 per month

Response headers on every request:

X-RateLimit-Limit: 60
X-RateLimit-Remaining: 45
X-RateLimit-Reset: 1710500000

Important Notes

• Always call GET /accounts first to get account IDs before creating posts
• Times must be ISO 8601 UTC format (e.g. 2026-04-15T09:00:00Z)
• When the user says a time like "tomorrow at 9am", convert to UTC based on context
• For cross-posting to multiple platforms, include all platform/accountId pairs in the platforms array
• Threading is auto-detected per platform from `\

\ \ ` (triple newline) separators in the platform's text — respect per-platform character limits

• Media URLs must come from the /media/upload endpoint (S3 URLs)
• DELETE only removes from PostHero, not from the social media platform