Task

Ed25519

2 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

Verify a Solana signature x402 REST usage

Verify an Ed25519 Solana signature (Phantom/Solflare signMessage) for a message and public key; signature in base58, base64 or hex. Local computation.

api.vextorium.com Crypto & Payments 4 calls / 30d checked 2026-10-28

0.003 USDC per call per call

Verify receipt x402 REST usage

Verify a genesis402 signed receipt — signature and hash-chain position — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Other services 2 calls / 30d checked 2026-11-01

0.005 USDC per call per call

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