the402 endpoint detail

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x402.agentutility.ai users-by-username

https://x402.agentutility.ai/users-by-username

payable

Resolves an X handle to a public profile: id, username, display name, bio, verification fields, created_at, followers, following, tweet count, and listed count. Same read-only X API v2 user-by-username backend as x-username. Use it as an X users by username API, Twitter user profile lookup, or handle to public profile API.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.005
Network
base
Pay to
0x6c0752c09e7F6fA6526fCDf40e456a159ebB5621
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
7 ms
Payment options
2 usable of 2
Last checked
2026-08-10T09:09:24.136Z (4d ago)
Category
search

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402.agentutility.ai%2Fusers-by-username"