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B20 Token Freeze Check
x402
B20 Token Freeze Check is a paid API for AI agents from 402.com.tr, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).
Checks whether a specific wallet is authorized under a B20 token's transfer-sender policy, determining if it can be seized or frozen by the token issuer.
Price / call$0.03
Success—
StatusUnknown
How this service works
Checks whether a specific wallet is authorized under a B20 token's transfer-sender policy. If it isn't, that wallet can't transfer and can be burnBlocked() (SEIZED) by the issuer. The personal companion to b20-safety — 'can this token freeze MY funds?'
Output
Returns whether the specified wallet is authorized under the B20 token's transfer-sender policy, indicating if the wallet can transfer the token or is at risk of being burnBlocked (SEIZED) by the issuer.
Example use cases
Example prompt
“Can you check whether my wallet 0xAbC123...def is authorized under the B20 token at address 0x456...789 — specifically, could the issuer freeze or seize my funds?”
Technical details
Endpoint
GEThttps://402.com.tr/api/x402/b20-freeze-checkWhen to prefer
Use this endpoint when a user needs to know specifically whether their wallet can be frozen or seized by a B20 token issuer on Base, particularly before acquiring or holding a B20 token. Prefer this over generic token safety checks when the concern is about transfer restrictions and personal fund seizure risk rather than general contract audits.
Side effects
- Invalid token address returns an error or empty result
- Invalid wallet address format causes a 400-level response
- Token address is not a B20 token and policy lookup fails
- Network or upstream RPC unavailability causes a timeout
- Missing required query parameters (token or wallet) returns a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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