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Twitter/X Follow Relationship Checker
x402
Twitter/X Follow Relationship Checker is a paid API for AI agents from twitter.surf.cascade.fyi, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Checks whether a follow relationship exists between two Twitter/X users
Price / call$0.001
Success—
StatusUnknown
How this service works
Check follow relationship
Output
Returns the follow relationship status between two Twitter users, including whether the source user follows the target and whether the target follows the source back (following/followed_by booleans, and potentially blocking/muting status).
Example use cases
Mutual follow verification for DM access
“I need to know if Twitter user 44196397 and user 783214 follow each other — check both directions of the follow relationship.”
Influencer partnership eligibility check
“Before we reach out, can you verify whether Twitter user 6253282 is already following our brand account 123456789? I want to know if they follow us.”
Fan engagement gatekeeping
“Check if Twitter user ID 987654321 follows our account 111222333 — we only want to give the giveaway reward to people who actually follow us.”
Technical details
Endpoint
POSThttps://twitter.surf.cascade.fyi/api/v1/twitter/users/relationshipWhen to prefer
Use this endpoint when you need to programmatically verify Twitter follow relationships between specific users — especially useful for eligibility checks, social graph analysis, or verifying influencer/brand connections. Prefer this over scraping or manual checks when you need fast, reliable relationship data via a paid API with clear pricing.
Side effects
- Invalid or non-existent user IDs return an error
- Private/suspended accounts may return restricted relationship data
- Rate limiting by the underlying Twitter API may cause failures
- Missing required user ID parameters return a validation error
- Payment failure (x402) if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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