SendCheck

Name: SendCheck
Brand: Pennyforge
Availability: InStock

Address verification for USDC (EIP-55): one paid call returns the checksummed form of an address and flags case errors before you send, so a mistyped wallet doesn't eat the transfer. x402 payment, $0.01 USDC on Base; a $0.05 /deep variant and a free /validate pre-check live on the same host.

x402 verified · Verified on /check · $0.01 · $0.01 USDC/request · 1 endpoints / 1 tools · Verification · base network · x402 protocol

How to call this API

Every protected route returns HTTP 402 with x402 payment requirements. An agent pays the stated USDC amount on Base and retries with the payment header. No API keys, no accounts. Browse the marketplace or list your own API.

By Pennyforge