X/Twitter API Setup

X/Twitter API Setup for Zernio

🔑 API Key Options

To use Zernio with Twitter/X, you have two options for API credentials: use the communal API key provided by Dalek, or set up your own personal API key.

Caution

Twitter/X has discontinued their free tier API. All API access now operates on a pay-as-you-go model. This affects both the communal key and any personal keys you set up yourself.

🤝 Communal Key

Quick & Easy Setup

The simplest way to get started is to use Zernio’s communal API key. Dalek is currently covering this cost so it remains free for community members — no developer account needed.

Caution

Heads up about the future of the communal key. Because Twitter/X no longer offers a free tier, the communal key has ongoing costs. Dalek is happy to cover it for now, but if usage grows to the point where costs become unsustainable, we may need to discontinue it.

If that happens, you’ll have two paths forward:

• Bring Your Own Key (BYOK) - set up your own personal Twitter API key
• Managed Key Service - Dalek may offer a paid managed key option for those who prefer not to deal with setup

If anything changes, Dalek will communicate well in advance so no one gets caught off guard.

Contact Dalek

Reach out to Dalek through OshiHub and request access to the communal API key.

Get Configured

Dalek will help configure your account with the communal credentials.

Start Using Zernio

You’re ready to start scheduling your posts!

Note

Benefits of using the communal key:

• No developer account needed
• No configuration required
• Free while Dalek covers the cost
• Perfect for casual users

🔑 BYOK

Personal API Setup

For users who want full control over their API access, you can set up your own Twitter/X developer credentials under a pay-as-you-go plan.

Note

Benefits of using your own key:

• Full control over your API access and usage
• Independent from shared resources
• You manage your own rate limits and spend
• Required for high-volume usage

Caution

Security Warning: Never share your API credentials with anyone except trusted support staff. These credentials provide full access to your Twitter account.

Setting Up Your Twitter/X API Credentials

Go to Twitter Developer Portal

Navigate to the Twitter Developer Portal and sign in with your Twitter/X account.

Create a Developer Account

If you don’t already have one, you’ll need to apply for a developer account. Fill out the use case form when prompted.

Tip

💡 If asked to describe your Twitter API use cases (250 characters), copy this text:

Our application enables users to schedule and publish text and media content to their own Twitter accounts using their personal API credentials. We access user profile data, publish tweets with media attachments, retrieve engagement metrics, and manage authentication.

Create a New Project and App

From your developer dashboard, create a new Project, then create an App inside it. Give it a name you’ll recognize (e.g., “Zernio Scheduler”).

Set Spend Limits

Before you do anything else, go to your Billing & Usage settings and configure a monthly spend cap.

Caution

Set a spend limit — seriously. Twitter/X operates on pay-as-you-go pricing with no free tier. Without a cap, unexpected usage spikes can result in charges you didn’t plan for. Set a limit you’re comfortable with before connecting your key to any app.

Configure App Permissions

In your App settings, set the following permissions:

• Read and Write (for posting tweets)
• Read Users (for profile access)

Make sure you’re on at least the Basic tier — this is required for write access (posting tweets).

Navigate to Keys and Tokens

Go to the Keys and Tokens tab in your App settings.

Generate and Copy Your Credentials

Generate and copy the following:

• API Key (Client ID)
• API Key Secret (Client Secret)

Store these somewhere safe — you won’t be able to view the secret again after leaving the page.

Add the Redirect URI

Under User Authentication Settings, add this redirect URI to your app:

https://Zernio.com/api/v1/connect/twitter/callback

Connect with Dalek

Reach out to Dalek through OshiHub and provide your credentials. He’ll help get your account configured in Zernio.

Start Using Zernio

You’re all set! Start scheduling your posts.

Need Help?

Contact Support

If you encounter any issues during setup, reach out to Dalek for assistance through OshiHub.