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Crier - Cross-Post Your Content Everywhere

CLI tool for cross-posting content to multiple platforms including dev.to, Bluesky, Mastodon, Hashnode, Medium, and more. Supports markdown with frontmatter, automatic platform-specific formatting, and GitHub Actions integration.

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Crier

Cross-post your content to dev.to, Ghost, WordPress, Hashnode, Medium, Bluesky, Mastodon, Threads, Telegram, Discord, and more.

Like a town crier announcing your content to the world.

Getting Started

Quick Setup

pip install crier
cd your-blog
crier init

The init command walks you through:

Creating the .crier/ registry directory
Detecting your content directories
Configuring platforms with API keys

How It Works

Your markdown posts with YAML front matter are the source of truth
.crier/registry.yaml tracks what’s published where
crier audit shows what’s missing or changed
crier publish or audit --publish publishes content

# See what needs publishing
crier audit

# Publish a file to a platform
crier publish post.md --to devto

# Publish to multiple platforms
crier publish post.md --to devto --to bluesky --to mastodon

# Bulk publish missing content (interactive)
crier audit --publish

With Claude Code

Crier is designed to work with Claude Code for AI-assisted publishing. Install the skill with crier skill install, then just ask Claude naturally:

“Cross-post my latest article to all platforms”
“What articles haven’t been published to Bluesky?”
“Publish this post to Mastodon with a good announcement”

Claude automatically detects when to use the crier skill and follows the workflow: audit, select, publish (with rewrites for short-form platforms).

Installation

pip install crier

Supported Platforms

Platform	API Key Format	Notes
dev.to	`api_key`	Full article support
Hashnode	`token` or `token:publication_id`	Full article support
Medium	`integration_token`	Publish only (no edit/list)
Ghost	`https://site.com:key_id:key_secret`	Full article support
WordPress	`site.wordpress.com:token` or `https://site.com:user:app_pass`	Full article support
Buttondown	`api_key`	Newsletter publishing
Bluesky	`handle:app_password`	Short posts with link cards
Mastodon	`instance:access_token`	Toots with hashtags
Threads	`user_id:access_token`	Short posts (no edit support)
Telegram	`bot_token:chat_id`	Channel/group posts
Discord	`webhook_url`	Server announcements
LinkedIn	`access_token`	Requires API access
Twitter/X	`any` (copy-paste mode)	Generates tweet for manual posting

Platform Notes

Blog Platforms (dev.to, Hashnode, Medium, Ghost, WordPress):

Full markdown article publishing
Preserves front matter (title, description, tags, canonical_url)
Best for long-form content

Newsletter Platforms (Buttondown):

Publishes to email subscribers
Full markdown support
Great for content repurposing

Social Platforms (Bluesky, Mastodon, LinkedIn, Twitter, Threads):

Creates short posts with link to canonical URL
Uses title + description + hashtags from tags
Best for announcing new content

Announcement Channels (Telegram, Discord):

Posts to channels/servers
Good for community announcements
Discord uses webhook embeds

Manual Mode

For platforms with restrictive API access (Medium, LinkedIn, Twitter/X), you can use manual (copy-paste) mode:

# Explicit manual mode with --manual flag
crier publish post.md --to medium --manual
crier publish post.md --to linkedin --manual

# Skip auto-opening browser
crier publish post.md --to twitter --manual --no-browser

Auto-manual mode: If you configure a platform’s API key to "manual", crier automatically uses manual mode:

# Configure platform for manual mode (no API key needed)
crier config set twitter.api_key manual
crier config set linkedin.api_key manual

# Now these automatically use manual mode without --manual flag
crier publish post.md --to twitter
crier publish post.md --to linkedin

Manual mode workflow:

Formats content for the platform
Copies it to your clipboard
Opens the compose page in your browser
Asks if you successfully posted
Records to registry only if you confirm

This ensures the registry accurately reflects what’s actually published.

Configuration

Crier uses two configuration files:

Global Config (`~/.config/crier/config.yaml`)

API keys and profiles (shared across all projects):

platforms:
  devto:
    api_key: your_key_here
  bluesky:
    api_key: "handle.bsky.social:app-password"
  mastodon:
    api_key: "mastodon.social:access-token"
  twitter:
    api_key: manual    # Copy-paste mode
  medium:
    api_key: import    # URL import mode

profiles:
  blogs:
    - devto
    - hashnode
    - medium
  social:
    - bluesky
    - mastodon
  everything:
    - blogs           # Profiles can reference other profiles
    - social

Local Config (`.crier/config.yaml`)

Project-specific settings:

content_paths:
  - content                    # Directories to scan for markdown files
site_base_url: https://yoursite.com
exclude_patterns:
  - _index.md                  # Files to skip (Hugo section pages)
file_extensions:
  - .md
  - .mdx                       # Optional: for MDX content
default_profile: everything    # Used when no --to or --profile specified
rewrite_author: claude-code    # Default author for AI-generated rewrites

Option	Purpose
`content_paths`	Directories to scan for content
`site_base_url`	For inferring canonical URLs
`exclude_patterns`	Filename patterns to skip
`file_extensions`	Extensions to scan (default: `.md`)
`default_profile`	Default platforms when none specified
`rewrite_author`	Default `--rewrite-author` value

Environment Variables

Environment variables override config files:

export CRIER_DEVTO_API_KEY=your_key_here
export CRIER_BLUESKY_API_KEY="handle.bsky.social:app-password"

Markdown Format

Crier reads standard markdown with YAML or TOML front matter:

---
title: "My Amazing Post"
description: "A brief description"
tags: [python, programming]
canonical_url: https://myblog.com/my-post
published: true
---

Your content here...

TOML front matter is also supported (delimited by +++):

+++
title = "My Amazing Post"
description = "A brief description"
tags = ["python", "programming"]

[extra]
canonical_url = "https://myblog.com/my-post"
+++

Your content here...

Commands

# Publishing
crier init                              # Interactive setup wizard
crier publish FILE --to PLATFORM        # Publish to platform(s)
crier publish FILE --to PLATFORM --manual  # Manual copy-paste mode
crier publish FILE --to bluesky --thread   # Publish as thread
crier audit                             # See what's missing/changed
crier audit --publish                   # Bulk publish interactively
crier audit --publish --yes             # Bulk publish without prompting

# Content Management
crier search                            # List all content
crier search --tag python --since 1w    # Filter by tag and date
crier status [FILE]                     # Show publication status
crier list PLATFORM                     # List your articles
crier delete FILE --from PLATFORM       # Delete from platform
crier archive FILE                      # Archive (exclude from audit)
crier unarchive FILE                    # Unarchive

# Scheduling
crier schedule list                     # List scheduled posts
crier schedule show ID                  # Show scheduled post details
crier schedule cancel ID                # Cancel scheduled post
crier schedule run                      # Publish due posts

# Analytics
crier stats                             # Show stats for all content
crier stats FILE                        # Show stats for specific file
crier stats --top 10                    # Top 10 by engagement
crier stats --refresh                   # Refresh from platforms

# Configuration
crier config show                       # Show configuration
crier config set KEY VALUE              # Set configuration
crier config llm show                   # Show LLM configuration
crier config llm test                   # Test LLM connection
crier doctor                            # Verify API keys work
crier skill install                     # Install Claude Code skill

Automation

Batch Mode

Use --batch for fully automated, non-interactive publishing (CI/CD):

# Batch mode implies --yes --json, skips manual/import platforms
crier publish post.md --to devto --to bluesky --batch
crier audit --publish --batch --long-form

Batch mode behavior:

Implies --yes (no confirmation prompts)
Implies --json (structured output for parsing)
Implies --only-api (skips manual/import platforms that require user interaction)

JSON Output

Use --json for machine-readable output:

crier publish post.md --to devto --json
crier audit --json

JSON output structure:

{
  "command": "publish",
  "file": "post.md",
  "results": [{"platform": "devto", "success": true, "url": "..."}],
  "summary": {"succeeded": 1, "failed": 0, "skipped": 0}
}

Auto-Rewrite

Use --auto-rewrite to generate short-form content using an LLM:

crier publish post.md --to bluesky --auto-rewrite

Simplest setup: If you have OPENAI_API_KEY set, it just works (defaults to gpt-4o-mini).

Or configure in ~/.config/crier/config.yaml:

# Minimal - just the API key (defaults to OpenAI + gpt-4o-mini)
llm:
  api_key: sk-...

# Or full config for Ollama/other providers
llm:
  base_url: http://localhost:11434/v1  # Ollama
  model: llama3
  # api_key: not needed for local Ollama

Environment variables (override config):

OPENAI_API_KEY — API key (auto-defaults to OpenAI endpoint + gpt-4o-mini)
OPENAI_BASE_URL — Custom endpoint (e.g., http://localhost:11434/v1 for Ollama)

Bulk Operations

The audit command supports powerful filtering for targeted bulk operations:

# Post to API platforms only (skip manual/import)
crier audit --publish --yes --only-api

# Long-form only (skip bluesky, mastodon, twitter, threads)
crier audit --publish --yes --long-form

# Random sample of 5 articles
crier audit --publish --yes --sample 5

# Include changed content (default: missing only)
crier audit --publish --yes --include-changed

# Filter by path
crier audit content/post --publish --yes --only-api

# Filter by date (relative)
crier audit --since 1w --publish --yes              # Last week
crier audit --since 1m --publish --yes              # Last month
crier audit --since 7d --until 1d --publish --yes   # 7 days ago to yesterday

# Filter by date (absolute)
crier audit --since 2025-12-01 --until 2025-12-31 --publish --yes

# Combine filters
crier audit content/post --since 1m --only-api --long-form --sample 10 --publish --yes

Filter Reference

Filter	Description
`[PATH]`	Only scan specific directory
`--since`	Only content from this date (`1d`, `1w`, `1m`, `1y`, or `YYYY-MM-DD`)
`--until`	Only content until this date
`--only-api`	Skip manual/import/paste platforms
`--long-form`	Skip short-form platforms (bluesky, mastodon, twitter, threads)
`--sample N`	Random sample of N items
`--include-changed`	Also update changed content (default: missing only)
`--batch`	Non-interactive mode (implies `--yes --json`, skips manual platforms)
`--json`	Output results as JSON

Filters are applied in order: path → date → platform mode → content type → changed → sampling

Delete & Archive

Deleting Content

Remove published content from platforms:

# Delete from specific platform
crier delete post.md --from devto

# Delete from all platforms
crier delete post.md --all

# Preview what would be deleted
crier delete post.md --all --dry-run

Deletion records are preserved in the registry (marked as deleted) to prevent accidental re-publishing.

Archiving Content

Archive content to exclude it from audit --publish:

# Archive (exclude from bulk publishing)
crier archive post.md

# Unarchive (include again)
crier unarchive post.md

# Include archived in audit
crier audit --include-archived

Scheduling

Schedule posts for future publication:

# Schedule a post
crier publish post.md --to devto --schedule "tomorrow 9am"
crier publish post.md --to bluesky --schedule "2025-02-01 14:00"

# View scheduled posts
crier schedule list

# Show details
crier schedule show abc123

# Cancel a scheduled post
crier schedule cancel abc123

# Publish all due posts
crier schedule run

Supports natural language times (“tomorrow”, “next monday 9am”) and ISO format.

Analytics

Track engagement across platforms:

# Show stats for all content
crier stats

# Stats for specific file
crier stats post.md

# Top articles by engagement
crier stats --top 10

# Filter by date
crier stats --since 1m

# Refresh from platforms (ignore cache)
crier stats --refresh

# JSON output
crier stats --json

Stats are cached for 1 hour. Supported platforms: dev.to, Bluesky, Mastodon.

Threading

Split long content into threads for social platforms:

# Auto-split into thread
crier publish post.md --to bluesky --thread

# Choose thread style
crier publish post.md --to mastodon --thread --thread-style numbered  # 1/5, 2/5...
crier publish post.md --to bluesky --thread --thread-style emoji      # 🧵 1/5...
crier publish post.md --to mastodon --thread --thread-style simple    # No prefix

Thread splitting priority:

Manual markers:  in content
Paragraph boundaries (double newline)
Sentence boundaries (if paragraph too long)

Supported platforms: Bluesky, Mastodon.

Pre-Publish Validation

Validate content before publishing with crier check:

# Check a single file
crier check post.md

# Check with platform context (validates platform-specific limits)
crier check post.md --to bluesky --to devto

# Check all content
crier check --all

# Strict mode: warnings become errors
crier check post.md --strict

# Check external links (opt-in, makes HTTP requests)
crier check post.md --check-links

# JSON output
crier check post.md --json

Checks performed:

Check	Severity	Description
`missing-title`	error	No title in front matter
`empty-body`	error	No content body
`missing-date`	warning	No date field
`missing-tags`	warning	No tags defined
`title-length`	warning	Title exceeds recommended length
`short-body`	warning	Very short content body
`bluesky-length`	warning	Content exceeds Bluesky character limit
`mastodon-length`	warning	Content exceeds Mastodon character limit
`missing-description`	info	No description field
`devto-canonical`	info	No canonical URL for dev.to

Publish integration: Pre-publish checks run automatically before publishing. Use --no-check to skip, --strict to block on warnings.

Severity overrides in .crier/config.yaml:

checks:
  missing-tags: disabled    # Don't care about tags
  missing-date: error       # Promote to error
  short-body: disabled      # Allow short posts

Quiet Mode

Suppress non-essential output for scripting:

crier publish post.md --to devto --quiet
crier audit --publish --yes --quiet
crier search --tag python --quiet

Quiet mode only shows errors and final results. Combine with --json for fully parseable output.

Exit Codes

Code	Meaning
`0`	Success — all operations completed
`1`	Failure — operation failed or validation error
`2`	Partial — some operations succeeded, some failed

# Check exit code in scripts
crier publish post.md --to devto --batch
if [ $? -eq 2 ]; then
  echo "Some platforms failed, retrying..."
fi

Getting API Keys

Bluesky

Go to Settings → App Passwords
Create an app password
Use format: yourhandle.bsky.social:xxxx-xxxx-xxxx-xxxx

Mastodon

Go to Settings → Development → New Application
Create app with write:statuses scope
Use format: instance.social:your-access-token

Twitter/X

Uses copy-paste mode - generates formatted tweet text for manual posting. No API setup required. Just set any placeholder value:

crier config set twitter.api_key manual

Ghost

Go to Settings → Integrations → Add custom integration
Copy the Admin API Key (format: key_id:key_secret)
Use format: https://yourblog.com:key_id:key_secret

WordPress

WordPress.com:

Go to https://developer.wordpress.com/apps/
Create an app and get OAuth token
Use format: yoursite.wordpress.com:access_token

Self-hosted WordPress:

Go to Users → Profile → Application Passwords
Create a new application password
Use format: https://yoursite.com:username:app_password

Buttondown

Go to https://buttondown.email/settings/programming
Copy your API key
Use format: api_key

Threads

Create a Meta Developer account at https://developers.facebook.com/
Create an app with Threads API access
Get your user_id and access_token
Use format: user_id:access_token

Message @BotFather to create a bot and get the bot token
Add your bot as admin to your channel
Get your channel’s chat_id (e.g., @yourchannel or numeric ID)
Use format: bot_token:chat_id

Discord

Go to Server Settings → Integrations → Webhooks
Create a new webhook for your announcement channel
Copy the webhook URL
Use the full URL as the API key

Custom Platforms

Extend crier with your own platforms by dropping a .py file in ~/.config/crier/platforms/:

# ~/.config/crier/platforms/nostr.py
from crier.platforms.base import Platform, Article, PublishResult

class Nostr(Platform):
    name = "nostr"
    description = "Publish to Nostr relays"

    def publish(self, article):
        # Your publish logic here
        return PublishResult(url="...", platform_id="...")

    def update(self, article_id, article):
        pass

    def list_articles(self, limit=10):
        return []

    def get_article(self, article_id):
        return None

Then configure your API key:

crier config set platforms.nostr.api_key <your-key>
crier publish article.md --to nostr

User plugins override built-in platforms with the same name. Files starting with _ are skipped. Broken plugins emit a warning but don’t crash crier.

License

MIT

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Crier: Cross-Post Your Content Everywhere