# chainkit

> chainkit is a non-custodial Bitcoin payment processor plus an open-source Go
> RPC SDK. Merchants issue fiat-priced invoices (EUR, USD, ...); customers pay
> in BTC; funds settle straight to an address derived from the merchant's own
> xpub — chainkit never holds the money, never sees a private key, and there
> are no chargebacks. One subscription also includes RPC telemetry for the SDK,
> which routes blockchain RPC calls across every major provider with automatic
> failover. Pricing is billed on settled volume: a monthly minimum plus a fee
> that falls as volume grows (live numbers at /pricing). The Go SDK is MIT
> licensed. Hosting and payment processing are EU-based.

## Product

- [Landing](https://chainkit.dev/): what chainkit does, how a payment settles
- [Pricing](https://chainkit.dev/pricing): live plan pricing — one plan covers payments + RPC telemetry
- [Docs hub](https://chainkit.dev/docs): quickstart, both API references, SDK
- [Payments quickstart](https://chainkit.dev/docs/quickstart): xpub → API key → invoice → webhook, in an afternoon
- [Payments API reference](https://chainkit.dev/docs/api/payments): authenticated merchant API
- [Public API reference](https://chainkit.dev/docs/api): unauthenticated utility API (OpenAPI-derived)
- [Security](https://chainkit.dev/security): the non-custodial model in depth
- [Trust](https://chainkit.dev/trust): operational and compliance posture
- [Paying with Bitcoin](https://chainkit.dev/paying-with-bitcoin): buyer-facing guide (linked from every invoice page)

## Comparisons

- [All comparisons](https://chainkit.dev/compare)
- [vs Blockonomics](https://chainkit.dev/compare-blockonomics)
- [vs OpenNode](https://chainkit.dev/compare-opennode)
- [vs Coinbase Commerce](https://chainkit.dev/compare-coinbase-commerce)

## Blog

- [Introducing chainkit: accept Bitcoin without giving up custody](https://chainkit.dev/blog/introducing-chainkit)
- [Looking for a Blockonomics alternative? Here is how chainkit compares](https://chainkit.dev/blog/blockonomics-alternative)
- [Accept Bitcoin payments without running a server](https://chainkit.dev/blog/accept-bitcoin-payments-without-a-server)

## Free tools

- [All tools](https://chainkit.dev/tools)
- [BTC fee estimator](https://chainkit.dev/tools/fees)
- [BTC ⇄ fiat converter](https://chainkit.dev/tools/rate)
- [Address validator](https://chainkit.dev/tools/address)
- [UTXO inspector](https://chainkit.dev/tools/utxos)
- [Transaction lookup](https://chainkit.dev/tools/tx)
- [Provider scoreboard](https://chainkit.dev/scoreboard): live RPC provider health/latency
- [RPC providers directory](https://chainkit.dev/providers)

## Code

- [chainkit Go SDK (MIT)](https://github.com/exapsy/chainkit-go-sdk)