Socialcannon

Publish, schedule, and manage social media posts across Twitter/X, Facebook, Instagram, LinkedIn, TikTok, and YouTube. Content calendar with gap analysis, A/B testing, engagement inbox, AI content repurposing, optimal timing suggestions, auto-scheduling, and UTM tracking.

Social media publishing API. Publish to Twitter/X, Facebook, Instagram, LinkedIn, TikTok, and YouTube from one API with scheduling, analytics, A/B testing, and AI-powered features.

Base URL: https://socialcannon.app

Getting Started

Before making API calls, you need credentials and at least one connected social account.

1. Get your API credentials

Sign up at socialcannon.app (Google sign-in, free tier included — no card required). Your Client ID and Client Secret are on the dashboard Settings page — these are the values for SOCIALCANNON_CLIENT_ID and SOCIALCANNON_CLIENT_SECRET.

2. Connect social accounts

Social accounts are connected via OAuth in the browser. Open the connect URL for each platform you want to use — you'll authorize SocialCannon and get redirected back:

Platform	Connect URL
Twitter/X	https://socialcannon.app/api/connect/twitter?client_id=YOUR_CLIENT_ID
Facebook	https://socialcannon.app/api/connect/facebook?client_id=YOUR_CLIENT_ID
Instagram	https://socialcannon.app/api/connect/instagram?client_id=YOUR_CLIENT_ID
LinkedIn	https://socialcannon.app/api/connect/linkedin?client_id=YOUR_CLIENT_ID
TikTok	https://socialcannon.app/api/connect/tiktok?client_id=YOUR_CLIENT_ID
YouTube	https://socialcannon.app/api/connect/youtube?client_id=YOUR_CLIENT_ID

You can also connect accounts from the dashboard at Settings → Accounts. Instagram uses Facebook's OAuth flow — make sure you select the Facebook Page linked to your Instagram Business account.

3. Get an API token and start posting

Once you have credentials and at least one connected account, authenticate and create your first post:

bash

# Get a token
TOKEN=$(curl -s -X POST https://socialcannon.app/api/v1/auth/token \
  -H "Content-Type: application/json" \
  -d "{\"grant_type\": \"client_credentials\", \"client_id\": \"$SOCIALCANNON_CLIENT_ID\", \"client_secret\": \"$SOCIALCANNON_CLIENT_SECRET\"}" \
  | jq -r '.data.access_token')

# List your connected accounts
curl -s https://socialcannon.app/api/v1/accounts \
  -H "Authorization: Bearer $TOKEN" | jq '.data'

# Publish a post (replace <account_id> with an ID from the list above)
curl -X POST https://socialcannon.app/api/v1/posts \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"accountId": "<account_id>", "content": "Hello from SocialCannon!"}'

Use via MCP (Hermes, Claude Desktop, OpenClaw)

Instead of raw HTTP, you can expose SocialCannon's 23 tools to any MCP-compatible agent with the @socialcannon/mcp package. Use the same SOCIALCANNON_CLIENT_ID / SOCIALCANNON_CLIENT_SECRET from your dashboard.

Hermes Agent — add to ~/.hermes/config.yaml:

yaml

mcp_servers:
  socialcannon:
    command: "npx"
    args: ["-y", "@socialcannon/mcp"]
    env:
      SOCIALCANNON_CLIENT_ID: "your-client-id"
      SOCIALCANNON_CLIENT_SECRET: "your-client-secret"

Claude Desktop — add an entry under mcpServers in claude_desktop_config.json with the same command/args/env.

The REST API documented below remains fully available; MCP is an optional convenience layer over the same endpoints.

Authentication

All requests require a JWT Bearer token. Get one by exchanging your client credentials:

bash

curl -X POST https://socialcannon.app/api/v1/auth/token \
  -H "Content-Type: application/json" \
  -d "{
    \"grant_type\": \"client_credentials\",
    \"client_id\": \"$SOCIALCANNON_CLIENT_ID\",
    \"client_secret\": \"$SOCIALCANNON_CLIENT_SECRET\"
  }"

Response:

json

{
  "success": true,
  "data": {
    "access_token": "eyJ...",
    "token_type": "Bearer",
    "expires_in": 3600,
    "scope": "posts:read posts:write ..."
  }
}

Use response.data.access_token as a Bearer token in all subsequent requests. Tokens expire after 1 hour — request a new one when you get a 401.

All requests below require this header:

text

Authorization: Bearer <access_token>
Content-Type: application/json

Response Format

IMPORTANT: ALL responses are wrapped in a standard envelope. This includes the token endpoint.

• Success: { "success": true, "data": { ... } }
• Error: { "success": false, "error": "message", "code": "ERROR_CODE" }

When extracting data from any response, always read from response.data, not from the response root. For example, to get the access token: response.data.access_token, not response.access_token.

Accounts

Accounts represent social media profiles connected via OAuth (see Getting Started above). You need at least one connected account before you can create posts.

List connected accounts

bash

curl https://socialcannon.app/api/v1/accounts \
  -H "Authorization: Bearer $TOKEN"

Returns all connected social accounts with their platform, username, and status. Use the account id field when creating posts. Filter by platform with ?platform=twitter.

Get a single account

bash

curl https://socialcannon.app/api/v1/accounts/<account_id> \
  -H "Authorization: Bearer $TOKEN"

Disconnect an account

bash

curl -X DELETE https://socialcannon.app/api/v1/accounts/<account_id> \
  -H "Authorization: Bearer $TOKEN"

Posts

Create a post

Publish immediately (omit scheduledAt) or schedule for later:

bash

curl -X POST https://socialcannon.app/api/v1/posts \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "accountId": "<account_id>",
    "content": "Your post text here",
    "mediaUrls": ["https://example.com/image.jpg"],
    "scheduledAt": "2026-04-15T10:00:00Z",
    "platformOptions": {
      "autoUtm": true
    }
  }'

Fields:

• accountId (required) — ID from the accounts list
• content (required) — post text
• mediaUrls (optional) — array of public image/video URLs
• scheduledAt (optional) — ISO 8601 datetime, "optimal" (auto-pick best time based on engagement data, Pro), or omit for immediate publish
• platformOptions.autoUtm (optional) — auto-tag URLs with UTM parameters
• platformOptions.mediaType (optional) — controls content type:
  • "reel" — Facebook/Instagram Reel (vertical 9:16 video)
  • "story" — Facebook/Instagram/TikTok Story (24h ephemeral)
  • "short" — YouTube Short (vertical video ≤60s)
  • "community" — YouTube Community post (text/image)
• platformOptions TikTok fields — TikTok posts require privacyLevel and support disableComment / disableDuet / disableStitch, commercialContent, brandOrganic, brandedContent. See the TikTok section under Platform-Specific Notes.

List posts

bash

curl "https://socialcannon.app/api/v1/posts?status=published&platform=twitter&limit=20" \
  -H "Authorization: Bearer $TOKEN"

Query params: status (draft/scheduled/published/failed), platform, accountId, limit, cursor

Get a single post

bash

curl https://socialcannon.app/api/v1/posts/<post_id> \
  -H "Authorization: Bearer $TOKEN"

Update a draft or scheduled post

bash

curl -X PATCH https://socialcannon.app/api/v1/posts/<post_id> \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "content": "Updated text",
    "scheduledAt": "2026-04-16T14:00:00Z",
    "platformOptions": { "autoUtm": true }
  }'

Fields: content, scheduledAt, platformOptions — all optional.

Delete a post

bash

curl -X DELETE https://socialcannon.app/api/v1/posts/<post_id> \
  -H "Authorization: Bearer $TOKEN"

If the post is published, this also attempts to delete it from the social platform.

Retry a failed post

bash

curl -X POST https://socialcannon.app/api/v1/posts/<post_id>/retry \
  -H "Authorization: Bearer $TOKEN"

Resets the failed post and attempts to publish immediately. No body needed. If it fails again, the post returns to failed status with the new error.

Threads & Carousels

Create multi-part threads (Twitter reply chains or Instagram carousels):

bash

curl -X POST https://socialcannon.app/api/v1/posts/thread \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "accountId": "<account_id>",
    "items": [
      { "content": "Thread part 1 — the hook" },
      { "content": "Thread part 2 — the detail" },
      { "content": "Thread part 3 — the CTA", "mediaUrls": ["https://..."] }
    ],
    "scheduledAt": "2026-04-15T10:00:00Z",
    "platformOptions": { "autoUtm": true }
  }'

Fields: accountId (required), items (required, min 2, max 25), scheduledAt (optional), platformOptions (optional). Instagram requires media on each item.

Media Upload

Upload images/videos before creating posts. Three-step direct-to-GCS flow — bytes go straight to Google Cloud Storage via a signed URL, never through SocialCannon's server. This supports files up to 4GB.

Accepted types: image/jpeg, image/png, image/gif, image/webp, video/mp4, video/quicktime, video/webm.

Step 1 — Initialize upload

bash

curl -X POST https://socialcannon.app/api/v1/media/upload-init \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "filename": "photo.jpg",
    "contentType": "image/jpeg",
    "size": 1048576
  }'

Response:

json

{
  "success": true,
  "data": {
    "uploadUrl": "https://storage.googleapis.com/...?X-Goog-Signature=...",
    "publicUrl": "https://storage.googleapis.com/<bucket>/media/<clientId>/<uuid>.jpg",
    "requiredHeaders": {
      "Content-Type": "image/jpeg",
      "x-goog-acl": "public-read"
    }
  }
}

uploadUrl is a V4 signed PUT URL valid for 15 minutes. size must be the exact byte size of the file you're about to upload.

Step 2 — PUT the file to the signed URL

bash

curl -X PUT "$UPLOAD_URL" \
  -H "Content-Type: image/jpeg" \
  -H "x-goog-acl: public-read" \
  --data-binary @photo.jpg

You must send the exact headers returned in requiredHeaders. Do not send the Authorization header — the signed URL carries its own auth. A successful PUT returns HTTP 200 with an empty body.

Step 3 — Finalize

bash

curl -X POST https://socialcannon.app/api/v1/media/upload-complete \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{ "publicUrl": "https://storage.googleapis.com/<bucket>/media/<clientId>/<uuid>.jpg" }'

Pass the publicUrl you got from step 1 verbatim. The server verifies the object exists, stamps customTime (starting the 30-day retention window), and increments your upload quota.

Response: { "success": true, "data": { "url": "https://...", "filename": "media/<clientId>/<uuid>.jpg", "contentType": "image/jpeg", "size": 1048576 } }

Use the returned url in the mediaUrls field when creating posts. Bytes are stored as-is — there is no server-side optimization, so upload the format/quality you want published.

Quota & errors

• 403 on step 1 with code set → your tier has hit its upload quota. Inspect limit in the response body.
• 404 on step 3 → the PUT didn't actually land. Retry from step 2.
• 403 on step 3 → publicUrl doesn't belong to your client. Use the exact URL returned by step 1, do not construct it yourself.

Content Calendar

Get calendar view

See posts grouped by date with gap analysis:

bash

curl "https://socialcannon.app/api/v1/calendar?startDate=2026-04-01&endDate=2026-04-30" \
  -H "Authorization: Bearer $TOKEN"

Returns posts, summary (totals by status/platform/day), and gaps (dates with no posts).

Query params: startDate (required), endDate (required), accountId, platform

Find available slots

bash

curl "https://socialcannon.app/api/v1/calendar/slots?startDate=2026-04-01&endDate=2026-04-07&slotDurationMinutes=60" \
  -H "Authorization: Bearer $TOKEN"

Query params: startDate (required), endDate (required, max 14-day range), slotDurationMinutes (optional, 30-1440, default 60).

Returns { slots[], totalSlots, availableSlots, occupiedSlots }.

Analytics

Per-post analytics

Fetch live engagement metrics from the platform:

bash

curl https://socialcannon.app/api/v1/posts/<post_id>/analytics \
  -H "Authorization: Bearer $TOKEN"

Returns: likes, comments, shares, impressions, reach, clicks, engagementRate, plus historical snapshots.

Aggregate analytics

bash

curl "https://socialcannon.app/api/v1/analytics/summary?startDate=2026-04-01&endDate=2026-04-30" \
  -H "Authorization: Bearer $TOKEN"

Returns totals across all posts for the date range.

Bulk refresh analytics

bash

curl -X POST https://socialcannon.app/api/v1/analytics/refresh \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{ "platform": "twitter", "limit": 20 }'

Fields: postIds (optional, array of up to 50 post IDs to refresh), platform (optional, filter), limit (optional, default 20, max 50). If postIds is provided, those specific posts are refreshed; otherwise recent published posts are refreshed.

Engagements (Comment Inbox)

List engagements

bash

curl "https://socialcannon.app/api/v1/engagements?isRead=false&limit=20" \
  -H "Authorization: Bearer $TOKEN"

Query params: postId, isRead (true/false), limit, cursor

Fetch engagements for a post

bash

curl "https://socialcannon.app/api/v1/posts/<post_id>/engagements?cursor=<next_cursor>" \
  -H "Authorization: Bearer $TOKEN"

Fetches fresh comments from the platform and stores them. Supports cursor for pagination.

Mark as read

bash

curl -X PATCH https://socialcannon.app/api/v1/engagements/<engagement_id> \
  -H "Authorization: Bearer $TOKEN"

Marks the engagement as read. No request body needed — the endpoint auto-marks on PATCH.

Reply to an engagement

bash

curl -X POST https://socialcannon.app/api/v1/engagements/<engagement_id>/reply \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{ "content": "Thanks for the feedback!" }'

Posts the reply directly on the social platform.

AI Content Repurposing

Adapt content for multiple platforms using AI. Two modes available:

Preview mode (default) — adapt and return variants for review:

bash

curl -X POST https://socialcannon.app/api/v1/posts/repurpose \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "sourceContent": "Your long-form content here...",
    "targetPlatforms": ["twitter", "facebook", "tiktok"],
    "mode": "preview",
    "tone": "professional"
  }'

Returns { "variants": [{ "platform", "content", "validation", "characterCount" }], "allValid" }.

Post mode — adapt and publish in one call:

bash

curl -X POST https://socialcannon.app/api/v1/posts/repurpose \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "sourceContent": "Your content here...",
    "targetPlatforms": ["twitter", "facebook"],
    "mode": "post",
    "accountIds": { "twitter": "acc_123", "facebook": "acc_456" },
    "mediaUrls": { "twitter": ["https://example.com/video.mp4"] },
    "appendContent": { "twitter": "Links or extra text for Twitter only" },
    "appendToAll": "Text appended to all platforms"
  }'

Returns { "results": [{ "platform", "success", "postUrl?", "error?" }] }.

All content is humanized automatically to remove AI writing patterns. Trusted clients bypass tier limits.

A/B Testing (Pro)

Not available for TikTok. A/B-test variants carry only content + media, so they can't set the per-post privacy level TikTok requires. A TikTok account is rejected with 400 and code: "PLATFORM_UNSUPPORTED" — publish individual posts to TikTok instead.

Not available for LinkedIn. LinkedIn is currently publish-only (no post analytics), so a winner could never be determined. A LinkedIn account is rejected with 400 and code: "PLATFORM_UNSUPPORTED" — publish individual posts to LinkedIn instead.

Create a test

bash

curl -X POST https://socialcannon.app/api/v1/ab-tests \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "accountId": "<account_id>",
    "name": "CTA test",
    "variants": [
      { "content": "Check out our new feature!", "mediaUrls": ["https://..."] },
      { "content": "You won'\''t believe this new feature..." }
    ],
    "metric": "engagementRate",
    "minDurationHours": 24,
    "scheduledAt": "2026-04-20T10:00:00Z"
  }'

Publish behavior matches POST /api/v1/posts:

• Omit scheduledAt → all variants publish immediately to the platform via the social adapter
• Provide scheduledAt → all variants are scheduled for that time (must be within 30 days; cron publishes them hourly)

Each variant is a separate post record. Auto-completes after minDurationHours and the winner is determined by the chosen metric. Per-variant mediaUrls is optional.

Partial failure semantics: if ANY variant fails to publish during immediate mode, the endpoint returns HTTP 502 and the failed variants are marked with status: 'failed'. The A/B test record is still created, but the winner comparison at completion only considers successfully published variants. Inspect each variant's post status before relying on test results.

Get test results

bash

curl https://socialcannon.app/api/v1/ab-tests/<test_id> \
  -H "Authorization: Bearer $TOKEN"

Returns per-variant metrics, current winner, and confidence score.

List tests

bash

curl "https://socialcannon.app/api/v1/ab-tests?status=active" \
  -H "Authorization: Bearer $TOKEN"

Force-complete a test

bash

curl -X POST https://socialcannon.app/api/v1/ab-tests/<test_id>/complete \
  -H "Authorization: Bearer $TOKEN"

Timing Suggestions (Pro)

Get recommended posting times

bash

curl "https://socialcannon.app/api/v1/accounts/<account_id>/timing?timezone=UTC-5" \
  -H "Authorization: Bearer $TOKEN"

Returns top 5 time slots ranked by average engagement rate with confidence scores.

Find the single best available slot

Combines engagement data with calendar availability:

bash

curl "https://socialcannon.app/api/v1/timing/optimal-slot?accountId=<account_id>&timezone=UTC-5" \
  -H "Authorization: Bearer $TOKEN"

Returns the next open slot ranked by historical performance.

Auto-schedule multiple posts

Distribute posts across optimal time slots for the next 7 days:

bash

curl -X POST https://socialcannon.app/api/v1/posts/auto-schedule \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "accountId": "<account_id>",
    "posts": [
      { "content": "Post 1 text" },
      { "content": "Post 2 text", "mediaUrls": ["https://..."] },
      { "content": "Post 3 text" }
    ],
    "timezone": "UTC-5"
  }'

Max 20 posts per request. Each post gets a unique slot. Returns { scheduled: [...], unscheduled: [...], summary: {...} }.

UTM Link Tracking

Generate UTM-tagged URLs:

bash

curl -X POST https://socialcannon.app/api/v1/links/generate \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://example.com/product",
    "platform": "twitter",
    "campaign": "spring-launch",
    "content": "hero-cta",
    "postId": "<post_id>",
    "save": true
  }'

Fields: url (required), platform (optional — sets utm_source), campaign (optional — utm_campaign), content (optional — utm_content), term (optional — utm_term), postId (optional — link to a post), save (optional, default true — persist to tracked_links).

List tracked links

bash

curl "https://socialcannon.app/api/v1/links?postId=<post_id>&platform=twitter&limit=20&cursor=<cursor>" \
  -H "Authorization: Bearer $TOKEN"

Query params: postId, platform, limit, cursor — all optional.

Platforms

List supported platforms and their capabilities (public, no auth required):

bash

curl https://socialcannon.app/api/v1/platforms

Platform-Specific Notes

Twitter/X

• 280 char limit. Up to 4 images. Threads via reply chains.

Facebook

• 63,206 char limit. Supports native scheduling. Page-level tokens.
• Reels: Set platformOptions.mediaType to "reel". Video must be MP4/MOV, vertical (9:16). Without this, videos post as regular video posts.
• Stories: Set platformOptions.mediaType to "story". Supports one image or video. Ephemeral (24h).

bash

curl -X POST https://socialcannon.app/api/v1/posts \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "accountId": "<account_id>",
    "content": "Check out this tutorial!",
    "mediaUrls": ["https://example.com/video.mp4"],
    "platformOptions": {
      "mediaType": "reel"
    }
  }'

Instagram

• Requires media (no text-only). Max 10 carousel items. No API deletion.
• Stories: Set platformOptions.mediaType to "story". One image or video.
• Reels: Set platformOptions.mediaType to "reel". Vertical 9:16 video.

TikTok

• Requires media — no text-only posts. Supports video, photo carousel (up to 35 images), and Stories.
• platformOptions.privacyLevel is REQUIRED on every TikTok post — there is no default. Omitting it returns 400 with code TIKTOK_PRIVACY_REQUIRED. Use a value from the creator-info endpoint's privacyLevelOptions (e.g. PUBLIC_TO_EVERYONE, MUTUAL_FOLLOW_FRIENDS, FOLLOWER_OF_CREATOR, SELF_ONLY).
• Interaction toggles (optional, default = allowed): disableComment, disableDuet, disableStitch (booleans). Duet/Stitch apply to video only. If the creator-info endpoint reports an interaction is disabled account-side (commentDisabled / duetDisabled / stitchDisabled), set the matching disable* to true (the server force-disables it regardless).
• Commercial content disclosure (optional): set commercialContent: true if the post promotes a brand, product, or service, then set brandOrganic: true (your own brand) and/or brandedContent: true (paid/third-party partnership). If brandedContent is true, privacyLevel cannot be SELF_ONLY.
• Stories: Set platformOptions.mediaType to "story". One video. Ephemeral (24h).
• Video publish uses an async poll model. No API deletion support.

Get a TikTok account's posting capabilities — call this before composing a TikTok post; it returns the allowed privacy levels and which interactions are disabled:

bash

curl https://socialcannon.app/api/v1/accounts/<account_id>/tiktok/creator-info \
  -H "Authorization: Bearer $TOKEN"

Returns { creatorNickname, creatorUsername, creatorAvatarUrl, privacyLevelOptions, commentDisabled, duetDisabled, stitchDisabled, maxVideoPostDurationSec }. Choose privacyLevel from privacyLevelOptions and respect the *Disabled flags.

Example — publish a public TikTok video with comments on:

bash

curl -X POST https://socialcannon.app/api/v1/posts \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "accountId": "<account_id>",
    "content": "New track out now!",
    "mediaUrls": ["https://example.com/clip.mp4"],
    "platformOptions": {
      "privacyLevel": "PUBLIC_TO_EVERYONE",
      "disableComment": false,
      "disableDuet": false,
      "disableStitch": false
    }
  }'

YouTube

• Supports regular videos, Shorts, and Community posts. Native scheduling support.
• Shorts: Set platformOptions.mediaType to "short". Vertical video ≤60s.
• Community posts: Set platformOptions.mediaType to "community". Text/image post to channel's Community tab.
• Scheduled videos are uploaded as private with a publishAt timestamp.

LinkedIn

• 3,000 char limit. Supports text-only and images (single or multi-image). Threads combine all items into one post.
• Scheduling works via SocialCannon (LinkedIn has no native scheduling).
• No analytics, engagement inbox, or replies for LinkedIn.

Rate Limits

• Free tier: 30 requests/minute
• Pro tier: 300 requests/minute
• Agency tier: 600 requests/minute
• Enterprise tier: 1200 requests/minute (default; negotiable)
• Returns 429 with Retry-After header when exceeded

Subscription Tiers

Four tiers. Twitter/X is the only platform with a per-post API cost passed through, so every tier carries an X-write quota.

Free — $0

• 2 connected accounts
• 10 posts per billing period
• 1 Twitter/X post per billing period (a taster — thread items count individually)
• 2 scheduled posts at a time
• 3 media uploads per billing period
• 2-item threads, 5 tracked links
• Twitter/X, Facebook only — Instagram, LinkedIn, TikTok, YouTube are Pro+
• No analytics, no engagement replies, no A/B testing, no timing suggestions
• 30 API requests/minute

Pro — $15/month

• Unlimited accounts, posts, scheduling on free platforms
• 50 Twitter/X posts per billing period
• All 6 platforms: Twitter/X, Facebook, Instagram, LinkedIn, TikTok, YouTube
• Analytics with history, 90-day calendar
• 25-item threads, unlimited tracked links
• A/B testing (5 concurrent, 4 variants)
• Engagement replies, timing suggestions
• 300 API requests/minute

Agency — $49/month

• Everything in Pro
• 250 Twitter/X posts per billing period
• A/B testing (20 concurrent, 6 variants)
• 365-day calendar range
• Priority support
• 600 API requests/minute

Enterprise — custom contract

• Custom Twitter/X quota, custom rate limits, SLA, dedicated support
• Contact [e-mail]

Hitting a cap

Any tier exceeding its maxTwitterPostsPerPeriod cap returns:

json

{
  "success": false,
  "error": "Twitter/X post limit reached (50/50). Upgrade to Pro for unlimited Twitter publishing.",
  "code": "LIMIT_EXCEEDED",
  "limit": { "type": "twitter_posts_per_period", "current": 50, "max": 50, "tier": "pro" }
}

HTTP 403. Resets at the start of the next billing period.

Support

If you run into issues with the API, account connections, or integration setup, contact [e-mail].

Tips for Agents

1. Always list accounts first to get valid accountId values before creating posts.
2. Use the calendar endpoint to check for gaps before suggesting new posts.
3. For Instagram and TikTok, always include at least one media URL — text-only posts will fail.
4. Use autoUtm: true in platformOptions to automatically tag URLs in posts.
5. Check analytics after 24+ hours for meaningful engagement data.
6. When repurposing content, review the returned validation field — if valid is false, adjust the content before publishing.
7. Use scheduledAt: "optimal" to let SocialCannon pick the best posting time automatically (Pro).
8. For batch scheduling, use the auto-schedule endpoint instead of creating posts one by one.
9. For YouTube, set mediaType to "short" for Shorts or "community" for Community tab posts.
10. For TikTok, call GET /api/v1/accounts/{id}/tiktok/creator-info first — it returns the allowed privacyLevelOptions (pass one as platformOptions.privacyLevel; it is required) and which of Comment/Duet/Stitch are disabled (never enable a disabled one).