agent-instagram

Agent Instagram

An Instagram DM CLI for AI agents. Supports browser cookie extraction (zero-config, extracts from Chromium browsers) and username/password authentication (with 2FA). Uses Instagram's private mobile API to read and send direct messages.

Use one of these entrypoints:

• Global install: agent-instagram ...
• One-off execution: bunx --package agent-messenger agent-instagram ...

Key Concepts

• Thread ID = Instagram's identifier for a DM conversation. Numeric string returned by chat list.
• Browser cookie extraction = recommended auth method. Extracts cookies from Chromium browsers (Chrome, Chrome Canary, Edge, Arc, Brave, Vivaldi, Chromium) where you're logged into instagram.com. Zero-config.
• Username/password auth = fallback method. Authenticates using Instagram credentials. Supports two-factor authentication via SMS or authenticator app.
• HTTP-based = each command makes HTTP requests and returns. No persistent connection or background process.
• Multi-account = multiple Instagram accounts can be stored. Use auth list and auth use to switch between them.
• DM-only = this CLI focuses on Instagram Direct Messages. It does not manage posts, stories, or followers.

Quick Start

# Extract cookies from browser (recommended — zero-config)
agent-instagram auth extract

# Or: Log in with Instagram credentials (fallback)
agent-instagram auth login --username myaccount --password "mypassword"

# List DM conversations
agent-instagram chat list

# Send a message
agent-instagram message send <thread-id> "Hello from agent-instagram"

Authentication Flow

Instagram supports two authentication methods:

1. Browser cookie extraction (recommended): Extracts your session cookies from a Chromium browser where you're logged into instagram.com. Zero-config, no password needed.
2. Username/password login: Authenticates using Instagram credentials with optional two-factor verification.

Sessions are persisted locally so you don't need to re-authenticate for every command. Browser extraction auto-runs when no session exists.

Browser Cookie Extraction (Recommended)

agent-instagram auth extract reads your Instagram session cookies from Chrome, Edge, Arc, Brave, Vivaldi, or Chromium. You must be logged into instagram.com in one of these browsers.

# Extract cookies from browser — zero-config
agent-instagram auth extract

# With debug output
agent-instagram auth extract --debug

How it works: The CLI reads Instagram cookies (sessionid, csrftoken, ds_user_id) directly from the browser's SQLite cookie database. No browser automation, no password prompts. The session is stored locally in ~/.config/agent-messenger/.

When to re-extract: Browser cookies expire. When your session expires, re-run agent-instagram auth extract or let auto-extraction handle it (the CLI attempts extraction automatically when no valid session exists).

Supported browsers: Chrome, Chrome Canary, Edge, Arc, Brave, Vivaldi, Chromium

Agent Behavior (MANDATORY)

When a command fails because no account is configured, the agent MUST drive the auth flow itself. Never tell the user to run commands. The agent runs everything.

Step 1: Check for existing accounts

agent-instagram auth list

If accounts exist, use agent-instagram auth use <account-id> and retry the original command.

Step 2: Try browser extraction first

agent-instagram auth extract
# -> {"authenticated":true,"account_id":"12345678","username":"myaccount"}

If extraction succeeds, proceed with the original command.

Step 3: If extraction fails, ask for credentials

Ask the user for their Instagram username and password. These are the ONLY things the user needs to provide.

Step 4: Start login

agent-instagram auth login --username myaccount --password "mypassword"
# -> {"authenticated":true,"account_id":"myaccount","username":"myaccount"}

Step 4: Handle 2FA if required

If login returns two_factor_required, ask the user for the verification code:

# -> {"two_factor_required":true,"two_factor_identifier":"abc123","message":"..."}

Then complete verification:

agent-instagram auth verify --username myaccount --code 123456 --identifier abc123
# -> {"authenticated":true,"account_id":"myaccount","username":"myaccount"}

Step 5: Retry the original command

After successful auth, immediately execute whatever the user originally asked for.

Common Auth Commands

agent-instagram auth extract                 # Extract cookies from browser (recommended)
agent-instagram auth extract --debug         # Extract with debug output
agent-instagram auth status                  # Check current auth state
agent-instagram auth status --account <id>   # Check specific account
agent-instagram auth list                    # List all stored accounts
agent-instagram auth use <id>                # Switch active account
agent-instagram auth logout                  # Remove current account
agent-instagram auth logout --account <id>   # Remove specific account

Memory

The agent maintains a ~/.config/agent-messenger/MEMORY.md file as persistent memory across sessions. This is agent-managed. The CLI does not read or write this file. Use the Read and Write tools to manage your memory file.

Reading Memory

At the start of every task, read ~/.config/agent-messenger/MEMORY.md using the Read tool to load any previously discovered thread IDs, contact names, and preferences.

• If the file doesn't exist yet, that's fine. Proceed without it and create it when you first have useful information to store.
• If the file can't be read (permissions, missing directory), proceed without memory.

Writing Memory

After discovering useful information, update ~/.config/agent-messenger/MEMORY.md using the Write tool. Write triggers include:

• After discovering thread IDs and contact names (from chat list)
• After discovering group conversation names and participants
• After the user gives you an alias or preference ("call this the family group", "my work chat is X")

When writing, include the complete file content. The Write tool overwrites the entire file.

What to Store

• Thread IDs with contact/group names
• Your own username and user ID
• User-given aliases ("family group", "work chat")
• Commonly referenced thread IDs
• Any user preference expressed during interaction

What NOT to Store

Never store auth credentials, passwords, session tokens, or any sensitive data. Never store full message content (just IDs and chat context).

Format / Example

# Agent Messenger Memory

## Instagram Account

- Username: myaccount
- User ID: 12345678

## Conversations

- `340282366841710300949128138443434234567` - Alice (private)
- `340282366841710300949128138443434234568` - Bob (private)
- `340282366841710300949128138443434234569` - Project Team (group, 5 members)

## Aliases

- "alice" -> `340282366841710300949128138443434234567`
- "project" -> `340282366841710300949128138443434234569` (Project Team)

## Notes

- User prefers --pretty output

Memory lets you skip repeated chat list calls. When you already know a thread ID from a previous session, use it directly.

Commands

Auth Commands

# Extract cookies from browser (recommended — zero-config)
agent-instagram auth extract
agent-instagram auth extract --debug

# Log in (interactive: prompts for username/password)
agent-instagram auth login

# Log in (non-interactive: pass credentials as flags)
agent-instagram auth login --username <username> --password <password>

# Log in with debug output (shows raw API responses)
agent-instagram auth login --username <username> --password <password> --debug

# Complete 2FA verification (non-interactive)
agent-instagram auth verify --username <username> --code <code> --identifier <identifier>

# Resolve a security challenge — send verification code
agent-instagram auth challenge --username <username> --method email
agent-instagram auth challenge --username <username> --method sms

# Resolve a security challenge — submit verification code
agent-instagram auth challenge --username <username> --code <code>

# Check auth status
agent-instagram auth status
agent-instagram auth status --account <id>

# List stored accounts
agent-instagram auth list

# Switch active account
agent-instagram auth use <id>

# Remove account
agent-instagram auth logout
agent-instagram auth logout --account <id>

Whoami Command

# Show current authenticated user
agent-instagram whoami
agent-instagram whoami --pretty
agent-instagram whoami --account <account-id>

Output includes the authenticated user's identity information.

Chat Commands

# List DM conversations (sorted by most recent activity)
agent-instagram chat list
agent-instagram chat list --limit 50
agent-instagram chat list --account <id>

# Search conversations by name
agent-instagram chat search "alice"
agent-instagram chat search "alice" --limit 10
agent-instagram chat search "alice" --account <id>

Output includes:

• id - thread ID
• name - contact or group name
• type - private or group
• is_group - boolean
• participant_count - number of participants
• unread_count - unread message count
• last_message - most recent message preview

Message Commands

# List messages in a conversation
agent-instagram message list <thread-id>
agent-instagram message list <thread-id> --limit 50
agent-instagram message list <thread-id> --limit 10 --account <id>

# Send a text message to a thread
agent-instagram message send <thread-id> <text>
agent-instagram message send <thread-id> "Hello!" --account <id>

# Send a text message to a user by @username
agent-instagram message send-to <username> <text>
agent-instagram message send-to @alice "Hello!"

# Search messages by text content
agent-instagram message search <query>
agent-instagram message search "meeting" --thread <thread-id>
agent-instagram message search "hello" --limit 10

# Search Instagram users by username
agent-instagram message search-users <query>
agent-instagram message search-users "alice"

Output Format

JSON (Default)

All commands output JSON by default for AI consumption:

{
  "id": "340282366841710300949128138443434234567",
  "name": "Alice",
  "type": "private",
  "is_group": false,
  "participant_count": 2,
  "unread_count": 3,
  "last_message": {
    "id": "29876543210987654",
    "thread_id": "340282366841710300949128138443434234567",
    "from": "12345678",
    "timestamp": "2026-03-29T10:30:00.000Z",
    "is_outgoing": false,
    "type": "text",
    "text": "See you tomorrow!"
  }
}

Pretty (Human-Readable)

Use --pretty flag for formatted output:

agent-instagram chat list --pretty

Global Options

Option	Description
--pretty	Human-readable output instead of JSON
--account <id>	Use a specific account for this command

Common Patterns

Check unread messages

# List conversations to see unread counts
agent-instagram chat list --limit 20

# Read messages from a specific conversation
agent-instagram message list <thread-id> --limit 10

Send a message to a contact

# Find the contact first
agent-instagram chat search "Alice"

# Send to the thread ID
agent-instagram message send <thread-id> "Hey, are we still on for tomorrow?"

Reply in a group conversation

# Find the group
agent-instagram chat search "Project Team"

# Send to the group thread
agent-instagram message send <thread-id> "Status update: deployment complete."

Error Handling

All commands return consistent error format:

{
  "error": "Not authenticated. Run \"agent-instagram auth login --username <username>\" first."
}

Common errors:

• Not authenticated - no account configured. Run auth extract or auth login.
• Session expired or missing - session is no longer valid. Run auth extract to re-extract from browser, or auth login to log in again.
• Login failed - wrong username/password. Double-check credentials.
• Two-factor authentication failed - wrong 2FA code. Get a new code and try auth verify again.
• Rate limited - too many requests. Wait and retry.

Notes

• Session persistence: Login sessions are stored in ~/.config/agent-messenger/instagram/. Sessions may expire if Instagram detects unusual activity.
• Ban risk: Instagram monitors for automated behavior. Avoid high-volume messaging, rapid-fire sends, or bulk operations. Space out commands when sending multiple messages.
• Multi-account: Multiple Instagram accounts can be stored simultaneously. Use auth list to see all accounts and auth use <id> to switch.
• Text-only: Currently supports text messages only. Media, voice messages, and reactions are read-only (shown as type indicators in message listings).
• agent-instagram returns JSON by default and --pretty for indented output.

Troubleshooting

agent-instagram: command not found

agent-instagram is NOT the npm package name. The npm package is agent-messenger.

If the package is installed globally, use agent-instagram directly:

agent-instagram chat list --pretty

If the package is NOT installed, use --package to install and run:

npx -y --package agent-messenger agent-instagram chat list --pretty
bunx --package agent-messenger agent-instagram chat list --pretty
pnpm dlx --package agent-messenger agent-instagram chat list --pretty

NEVER run npx agent-instagram, bunx agent-instagram, or pnpm dlx agent-instagram without --package agent-messenger. It will fail or install a wrong package since agent-instagram is not the npm package name.

Login fails with "challenge_required"

Instagram may require additional verification (e.g., confirming your identity from the Instagram app). Open the Instagram app on your phone, complete any security challenges, then try logging in again.

Session expires frequently

Instagram invalidates sessions based on device fingerprinting and activity patterns. If sessions expire often:

1. Avoid frequent re-authentication
2. Space out API calls
3. Don't switch between multiple IP addresses rapidly