Documentation Kevmi

Everything you need
for your next step.

Create your first invoice. Set up your store. Connect the API. Find a clear guide and precise terms for every step.

Get started API reference

25 guidesOne knowledge base, on the website and in Telegram

Your first link

From creating an invoice to customer checkout.

Fees and VAT

Understand every part of the total.

API integration

The contract, checks and payment setup.

Knowledge base

Find your next step

25 of 25 guides

Getting started

From your first visit to a configured store.

Quick startExplore your workspace, set up your store and see an invoice as your customer will see it. This guide takes you through the main steps in order.3 min How Kevmi worksKevmi brings individual invoices, payment methods and pricing rules into one workspace. Every order is paid separately. There are no subscriptions or automatic recurring charges.3 min Apply to connect your storeSubmit your website after signing in with Telegram and follow each review stage at a private URL. Automated checks support the reviewer; a moderator always makes the final decision.6 min

Payments and terms

Links, amounts, VAT, payment methods and payouts.

Payment and payout feesThe acceptance fee depends on the payment method and uses the order base price. Kevmi’s commission is included. VAT and payout fees are shown separately.3 min VAT and cost allocationVAT is 16% of the base order price for international cards and Alipay. The merchant sets a customer share from 0 to 100% and covers the remainder from revenue. SBP and cryptocurrency have no VAT under these published terms.4 min Countries and payment methodsInternational cards cover 87 countries and territories. SBP serves Russia and Alipay serves China. Each channel has its own conditions; card footnotes apply only to cards.10 min Payment linksA payment link opens a dedicated order page. Customers see the seller, purchase description, available methods and total due on their phone or computer.5 min CheckoutCheckout shows the customer what they are buying, how they can pay and the amount due before confirmation. It is separate from the merchant workspace.5 min Payments and statusesAn invoice describes an order. A payment is a specific attempt to pay it. A payment attempt and the availability of its link are separate states.3 min USDT TRC20 payoutsPayout terms specify USDT on TRC20, with fees based on the source of funds. This guide covers fees, quote requirements and restrictions: payout creation through the account and API is unavailable.3 min Limits and availabilityPayment availability depends on method, amount, country and the terms of a particular invoice. Check the total, restrictions and applicable processing time before confirmation.3 min Split processing fees and VATChoose independently how much of the processing fee and VAT your customer pays on each invoice. Two sliders allocate each cost from 0 to 100% in one-percent steps, with the result visible before you create the link.6 min

Account and support

Telegram, notifications and help with your question.

Sign in and register with TelegramTelegram verifies your identity. Kevmi creates your account on the first sign-in and opens it on later visits. A separate Kevmi password is not required.3 min Store settingsSettings connect your store name, VAT rule and notifications to your verified account. Changes are saved on the server for the current user.3 min Website and Telegram notificationsAccount events appear under the bell in the top bar. Read notifications, check Telegram delivery and open the relevant part of your workspace.4 min Support chat and requestsThe assistant explains Kevmi’s terms, finds the right page and helps with settings. Open chat using the round button at the bottom right. Use a private request for an account-specific question.6 min

Developers

API, security, webhooks and gateway integration.

API referenceThe server API supports accounts, invoices, secure checkout, statuses and webhooks. OpenAPI describes routes, fields and errors. Starting a payment requires a configured gateway, an approved merchant and supported invoice terms.4 min Payment links API and API keysCreate an invoice from your backend and receive checkoutUrl immediately. The API supports scoped keys, idempotent retries, independent fee and VAT shares, an order reference and private metadata.7 min Authentication and session APISign-in uses a short-lived challenge, Telegram confirmation and proof of control of the original browser. A Telegram ID supplied by the client is not proof of identity.3 min Errors and retriesAPI errors use a consistent format. The code is for application logic; the message explains the issue. Keep user input intact and offer a clear next step.3 min Integration securityTrusted checks run on the server. The browser controls the interface, but cannot establish identity, financial status or final amounts.2 min Payment gateway integrationThe gateway processes financial operations. Kevmi connects them to orders, store settings and notifications. This guide describes the integration contract and availability checks.6 min Webhooks: events, signatures and deliveryRegister a public HTTPS endpoint, prove control and receive signed invoice and payment events. Delivery is queued durably; processing the same event again must be safe for your order.7 min Resources for search engines and AIPublic Kevmi information is available in server-rendered HTML, plain text and structured formats. These formats share one knowledge version and the same commercial facts.3 min Embed checkout on your websiteOpen checkout in a modal, embed it in a page or send the customer to a dedicated payment page. The widget uses a public checkout URL and never needs a merchant API key in the browser.4 min

For developers and AI

The same facts. In a useful format.

Access pricing, terms and guides without signing in. Read the complete knowledge base or the API contract.

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