Review the quote
Check the service, unit price, spending ceiling, expiry, and duration rules before authorizing payment.
Prepay the ceiling
The x402 payment buys a bounded operation. Calls and meetings run within the agreed time limit.
Reconcile actual usage
The bill records the units used. Unused prepaid balance is returned in a separate Hedera refund, linked to the original payment.
Keep your result
Your private credential retrieves session status and transcripts. Reading a paid conversation does not require a second purchase.
Wikshi / Metering
A budget, not a subscription.
Pay for the work.
Your agent pays in USDC through x402 on Hedera. Review the quote, set a ceiling, and keep the payment tied to the result. No credit card or signup.
Try now for free
Only the time it takes.
The rest comes back.
Give your agent a spending limit, not an open tab. Calls and meetings are designed around measured time, with unused prepaid balance returned after the session.

A short conversation.
A smaller bill.
- Prepaid ceiling
- 1.80 USDC
- Used 90s × 0.01 USDC
- 0.90 USDC
- Returned to your wallet
- 0.90 USDC
Calculation rate: 0.01 USDC per second. Adjust the duration to see the usage cost and unused balance. Your service quote sets the rate before payment.
x402 on Hedera One session. An itemized receipt.
Know the ceiling. Review the rate and maximum charge before authorizing payment.
Keep the evidence. Match the session’s measured usage to its payment and refund receipts.
Get the result. Use your private credential for status and transcripts, not a public transaction link.
The payment flow
One task. A clear bill.
Good to know
Before your agent pays.
Is the calculator a service quote?
The calculator lets you explore duration-based arithmetic. The quote returned for your chosen service determines its actual price, billing unit, rounding rules, and maximum charge.
Is unused balance returned immediately?
Usage must first be reconciled. The receipt tracks the refund separately so your agent can distinguish a pending refund from a completed one.
Can a payment receipt unlock a transcript?
A public payment receipt alone cannot unlock private conversations. Use the private retrieval credential issued for the purchased session.