Why Your X (Twitter) Integration Keeps Breaking — And How to Fix It

X (formerly Twitter) has undergone more API changes in the past three years than any other major social platform. What used to be one of the most developer-friendly APIs in the world has become one of the most restrictive — with paid tiers, frequent policy shifts, and endpoint removals that can break integrations overnight.

If your scheduled posts aren't going through, your publishing tool keeps asking you to reconnect, or you're hitting errors you've never seen before, this article explains what's actually happening, what X's official policies require, and what you can do about it.

The landscape has changed: what happened to X's API

Before 2023, X's API was largely free and permissive. After the 2022 acquisition, the API was rebuilt from scratch:

• The free tier was cut to a write-only stub with strict monthly caps
• Paid tiers were introduced: Basic ($200/month), Pro ($5,000/month), and Enterprise ($42,000+/month)
• In early 2026, X introduced a pay-per-use model ($0.01 per post created) as the default for new developers
• The legacy v1.1 API was deprecated; v2 is now the only supported version
• Multiple endpoints were removed or moved to higher-paid tiers without always providing advance notice

This matters to you because every third-party publishing tool operates within these constraints. When X changes the rules, your tool may suddenly lose capabilities — and the error messages rarely explain what changed.

Failure 1: Your access token was invalidated

How common: The single most frequent cause of "please reconnect" messages.

What X's official policy says

X supports two authentication methods for publishing, according to its official developer documentation at docs.x.com:

• OAuth 1.0a — the traditional method, still required for posting content on behalf of users. Uses a combination of API Key, API Secret, Access Token, and Access Token Secret.
• OAuth 2.0 with PKCE — the newer method, recommended by X for certain use cases but not yet universally adopted for all write operations.

Unlike Meta's tokens (which have a defined 60-day expiry), X's OAuth 1.0a tokens do not expire on a fixed schedule. Instead, they persist indefinitely unless they are explicitly revoked. However, tokens can be invalidated by:

• You revoking app access from X → Settings → Security and account access → Apps and sessions → Connected apps
• Changing your X password — this revokes all active OAuth tokens
• X suspending your account — even temporary suspensions invalidate all tokens
• X revoking the app's API access — if the publishing tool violates X's developer policies, all user tokens for that app become invalid simultaneously
• The app's API credentials being regenerated — if the tool's developers regenerate their API keys (for security or other reasons), all existing user tokens stop working

What you can do

1. Don't change your X password unless necessary. Every password change invalidates all connected app tokens — including your publishing tool.
2. Check your Connected Apps. Go to X → Settings → Security and account access → Apps and sessions → Connected apps. Confirm your publishing tool is still listed. If it's missing, reconnect.
3. If the tool asks you to reconnect and you haven't changed anything on your end, the issue may be on the tool's side — their API access or credentials may have changed. Contact their support.
4. After reconnecting, publish a test post immediately. Don't assume the reconnection worked.

Failure 2: Your tool's API tier can't support what you need

How common: Increasingly common as X restricts the free and lower tiers.

What X's pricing tiers allow

According to X's official API documentation and recent pricing structure, the publishing capabilities vary dramatically by tier:

Free tier:

• Write-only: can create posts, but very limited
• Approximately 500 posts per month (was 1,500 before late 2024)
• No read access (can't fetch timelines or engagement data)
• No access to like or follow endpoints (removed August 2025)

Basic tier ($200/month):

• 50,000 post reads per month and 10,000 post writes per month
• Per-user rate limits: approximately 100 posts per 15-minute window
• Access to most v2 endpoints

Pro tier ($5,000/month):

• 1 million post reads, full search archive, streaming access
• Higher rate limits across all endpoints

Pay-per-use (default for new developers since early 2026):

• $0.01 per post created, $0.005 per post read
• No fixed monthly cap but subject to rate limits

Why this breaks your integration

If your publishing tool operates on the free tier, it can only publish approximately 500 posts per month across all users of that tool's free-tier app. Once that cap is hit, every user's scheduled posts fail until the monthly window resets.

Even on the Basic tier, the per-user rate limit of ~100 posts per 15-minute window can be hit by tools that batch-publish across many accounts in rapid succession.

What you can do

• If your posts are failing near the end of the month, your tool may have hit its monthly cap — this is a tool-side issue, not yours
• Ask your tool's support team which X API tier they operate on — this tells you what limits apply
• If you're a high-volume publisher (more than 10+ posts per day), confirm your tool supports that volume on its current tier
• If your tool recently switched from free to pay-per-use, there may be a transition period where some features are unavailable

Failure 3: The endpoint your tool uses was deprecated

How common: Happens periodically — roughly every 6–12 months something breaks.

What's happening

X has been aggressively deprecating older API endpoints and moving functionality to higher-paid tiers. According to X's developer documentation and community announcements:

• The v1.1 API is fully deprecated. Tools still using v1.1 endpoints will experience failures as those endpoints are shut down.
• The UGC (User Generated Content) Post endpoint was deprecated; the /2/tweets endpoint is now the standard for posting.
• Like and follow endpoints were removed from the free tier in August 2025.
• X releases breaking changes with limited advance notice — sometimes as little as a few days, sometimes with no announcement at all.

What you can do

This is entirely the publishing tool's responsibility to handle. But if you notice sudden failures:

1. Check X's official developer community at devcommunity.x.com for recent announcements about endpoint changes
2. Follow @XDevelopers for API change notifications
3. Contact your tool's support and ask whether they're aware of any X API changes affecting publishing
4. If your tool hasn't been updated recently, consider whether they're still actively maintaining their X integration

Failure 4: Your post was rejected by X's content systems

Sometimes the connection is valid, the token is active, the tier supports publishing — and the post still fails. Content-level rejections on X include:

Duplicate content detection

X's systems detect and reject identical or near-identical posts published in rapid succession. According to X's developer documentation and automation rules, publishing the same text multiple times — even across different accounts — can trigger spam filters that silently reject the post or temporarily restrict the account.

Character and media limits

X's current content limits:

• Text: 280 characters for free accounts; up to 25,000 characters for X Premium subscribers
• Images: Up to 4 images per post. Supported formats: JPEG, PNG, GIF (animated GIFs count as one image). Maximum file size: 5MB per image, 15MB for GIFs.
• Videos: MP4 or MOV format. Maximum: 512MB file size, 140 seconds duration for most accounts (longer for Premium).
• Links: count toward the character limit (shortened to ~23 characters by X's t.co URL wrapper)

Rate-based restrictions

If your account triggers X's automated anti-spam systems — through high posting frequency, repetitive content, or patterns that resemble bot behavior — your account may be temporarily restricted. During a restriction:

• New posts via the API will fail with HTTP 403 ("Forbidden")
• The restriction typically lifts after 12–24 hours
• Repeated triggers can lead to longer or permanent restrictions

What you can do

• Never post identical content across multiple X accounts or repeated times — always vary the text
• Keep posts within the 280-character limit unless you've confirmed your account has extended character access
• Use JPEG/PNG for images and MP4 for video
• If a specific post fails but others work, simplify the content and retry — the issue is content-specific
• Space your posts out — aim for at least 3–5 minutes between consecutive posts from the same account

Failure 5: Your X account is suspended or restricted

X suspends and restricts accounts more aggressively than other platforms, and the impact on third-party integrations is immediate.

What triggers account restrictions

According to X's official Rules and Policies:

• Spam behavior: Aggressive following/unfollowing, mass liking, or automated engagement patterns
• Platform manipulation: Using multiple accounts to amplify content, coordinated inauthentic behavior
• Content violations: Posts that violate X's rules on hate speech, harassment, misleading information, or synthetic/manipulated media
• Age or identity verification: X may lock accounts that haven't verified their email, phone number, or age

How this affects your integration

When your X account is suspended or restricted:

• All active OAuth tokens for that account are immediately invalidated
• Your publishing tool will show "disconnected" or fail silently on all posts
• Even after the restriction is lifted, you must reconnect the tool — old tokens don't automatically reactivate

What you can do

1. Log into X directly (at x.com or the X app) — if your account is suspended, you'll see a notice explaining why
2. Follow X's appeals process if you believe the suspension is incorrect
3. After the account is restored, immediately reconnect your publishing tool
4. Review your posting patterns — high-frequency automated posting is the most common trigger for restrictions

Failure 6: OAuth authentication method mismatch

What X requires for posting

X supports both OAuth 1.0a and OAuth 2.0, but for posting content, the requirements are specific. According to X's developer documentation:

• OAuth 1.0a is required for user-context write operations (posting, retweeting, liking). This is the authentication method that involves four credentials: API Key, API Secret, Access Token, and Access Token Secret.
• OAuth 2.0 with PKCE can be used for some write operations with specific scopes (tweet.write, users.read, offline.access), but support varies by endpoint.
• App-only authentication (Bearer Token) cannot be used for posting — it only works for read operations on public data.

If your publishing tool is using the wrong authentication method for posting, every publish request will fail with an authentication error.

What you can do

This is a tool-side issue. If you're getting authentication errors despite having a valid connection:

1. Contact your tool's support team and ask whether they're using OAuth 1.0a for posting
2. Ensure you granted all necessary permissions during the OAuth flow — specifically tweet.read and tweet.write scopes if the tool uses OAuth 2.0
3. Re-authorize the connection by revoking the app from X Settings → Connected Apps, then reconnecting from your tool

The monthly maintenance checklist

• [ ] Log into your publishing tool — does X show as "connected"?
• [ ] Log into X directly — is your account in good standing (no restrictions or suspension notices)?
• [ ] Go to X → Settings → Connected Apps — is your tool still listed?
• [ ] Has anyone changed the X account password recently? If so, reconnect
• [ ] Publish a test post through the tool — does it actually appear on X?
• [ ] Check the tool's status page or support announcements for any X API issues

Summary: why X integrations break

This article references X's official developer documentation at docs.x.com, including the API Rate Limits guide, Authentication documentation, and X's Rules and Policies. API pricing information is based on X's published tier structure as of early 2026, including the pay-per-use model introduced for new developers. Policies and pricing may change as X continues to update its platform.

Updated on: 20/04/2026