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x402-gateway: wallet_verify_siwe
x402
x402-gateway: wallet_verify_siwe is a paid API for AI agents from x402.freeq.one, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-26).
Verifies a Sign-In with Ethereum (SIWE) message and signature to authenticate a user's Ethereum wallet ownership
Price / call$0.002
Success—
StatusUnknown
How this service works
x402-gateway tool: wallet_verify_siwe (market: bazaar)
Output
Returns a verification result indicating whether the SIWE message signature is valid and the wallet address is confirmed, along with the recovered Ethereum address and authentication status.
Example use cases
Web3 dApp login verification
“A user just tried to log in to my dApp by signing a SIWE message with their Ethereum wallet — can you verify the signature and confirm they actually own that wallet address?”
Gating access by wallet ownership
“Before I give this user access to the premium section, verify their SIWE signature to confirm they control the wallet address they provided.”
Authenticating an agent on behalf of a user
“My user says they own wallet 0xABC...123 and gave me a signed SIWE message as proof — can you validate that signature so I can proceed securely?”
Technical details
Endpoint
POSThttps://x402.freeq.one/market/bazaar/tools/wallet_verify_siwe?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to verify a Sign-In with Ethereum (SIWE / EIP-4361) authentication flow for Ethereum-compatible wallets, particularly when a user has provided a signed SIWE message as proof of wallet ownership. Prefer this over generic signature verification when you need SIWE-specific message parsing and validation semantics.
Side effects
- Invalid or malformed SIWE message format returns an error
- Signature does not match the wallet address in the message
- Expired nonce or timestamp outside allowed window
- Network error reaching the verification backend
- Malformed Ethereum address in the SIWE payload
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| tool | string | Tool name (see GET /tools for the catalog) |
Tags
x402
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