How do I authenticate with the HoneyCoin USDC API?

HoneyCoin uses API key authentication. Create a free account at b2b.honeycoin.app, generate a sandbox key immediately, and swap for production keys after KYB verification. All requests go over HTTPS to api.honeycoin.app with your key in the Authorization header.

Is there a sandbox environment for testing?

Yes. Sandbox access is immediate on sign-up. You can test collections, payouts, virtual account creation, USDC mints, and webhooks against a fully-featured sandbox environment before you complete production KYB. Full sandbox documentation is at docs.honeycoin.app/reference/welcome.

What are the rate limits on the USDC API?

Rate limits are generous for production accounts and scale with volume. Sandbox is rate-limited for abuse protection but sufficient for testing. If you need higher limits for bursty workloads or batch payouts, contact sales and we'll adjust your account.

Can I use the USDC API to run cross-border payroll in Africa?

Yes. A common pattern is: receive USDC from your treasury wallet, call the payout endpoint with a list of contractor mobile money or bank destinations across 18 African markets, and let HoneyCoin handle FX conversion, local-rail delivery, and reconciliation. The entire payroll run happens in one API call.

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USDC payment API for Africa

One REST endpoint. 18 African markets. Accept USDC from anywhere, send USDC to anywhere, and settle into mobile money, bank accounts, or multi-currency virtual accounts. Built for developers who don't want to integrate with six different payment providers to cover a single continent.

Read the API docs Get sandbox keys

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Why you need a USDC payment API built for Africa, not one retrofitted to it

Most USDC infrastructure was built for the markets where USDC already has native banking integration — the US, Europe, Singapore, a few other regulated jurisdictions. In those markets, you can push USDC to a Circle Mint account or a Coinbase sub-account and settle into a local bank overnight. The last mile is solved.

Africa is different. USDC doesn't have native banking integration in Lagos, Nairobi, Accra, Kigali, or Kampala. If you want to send USDC that ends up as Kenyan Shillings in an M-Pesa wallet, you need a partner who speaks both on-chain USDC and M-Pesa's native API. If you want to accept a customer's bank transfer in Nigeria and credit your wallet in USDC, you need virtual accounts plus stablecoin minting plus transparent FX. If you're building a crypto product, a remittance app, a payroll company, or a B2B payments platform serving African customers, you need an API that treats USDC and mobile money as equals.

That's what HoneyCoin's USDC payment API does. One REST endpoint that abstracts the entire continent — so you write the integration once and cover 18 markets the day you ship.

What you can build with the HoneyCoin USDC API

Every flow below is one or two API calls and a webhook listener.

USDC collections

Accept USDC from international customers and settle locally

Generate a unique deposit address per customer or invoice, receive USDC on any supported chain, and optionally auto-sweep into local currency through a mobile money or bank payout.

Per-transaction deposit addresses with chain and amount validation

Webhook fires on chain confirmation with transaction hash and block height

Optional auto-settlement into KES, NGN, GHS, or any supported local currency

USDC payouts

Send USDC that arrives as local currency

Push USDC from your wallet to HoneyCoin and specify a destination — a mobile money number, a bank account, or a virtual account. HoneyCoin handles FX and local-rail delivery, typically under 60 seconds for mobile money.

Single-call bulk payouts to hundreds of destinations

Per-payout state tracking via webhooks (created, sent, confirmed, failed)

FX rate locked at the moment of the API call — no slippage

Virtual accounts

Issue named local-rails accounts that auto-sweep to USDC

Create a named virtual account in KES, NGN, GHS, or USD per customer. When your customer pays, the funds convert to USDC and land in your treasury wallet on the chain of your choice.

Unlimited sub-accounts per parent wallet

Deterministic reconciliation with customer-linked account numbers

Optional automatic conversion to USDC on deposit

What the developer experience looks like

Six things engineers care about before committing to a payment rail.

REST-first with JSON

Predictable endpoints, JSON request/response bodies, standard HTTP status codes, idempotency keys on all mutating operations. No GraphQL, no gRPC surprises.

Signed webhooks

Every event is signed with an HMAC you verify in your handler. Retries on delivery failure with exponential backoff, and event deduplication via unique event IDs.

Full sandbox

Every production endpoint is available in sandbox with synthetic data. Simulate payment confirmations, failures, chain reorgs, and webhook retries before you go live.

Transparent error responses

Every error comes back with a stable error code, a human-readable message, and a docs URL. No opaque 500s. No "please contact support" for things you can fix yourself.

Read the API reference Explore the API product

Who integrates the USDC API

Developers across crypto, fintech, payroll, and cross-border platforms.

Crypto wallets and exchanges

Add fiat on and off-ramps in 18 African markets without becoming a money services business in every country. Your users deposit in local currency and receive USDC in their wallet.

Explore Minting

Remittance and cross-border apps

Let users send money home from the US or EU and have it arrive in M-Pesa or a local bank account — routed through USDC in the middle for speed and cost.

Explore Wallets

B2B payroll and contractor platforms

Run cross-border payroll with a single bulk payout call. Your company pays in USDC, contractors receive in their preferred local currency across 18 African markets.

Explore Virtual Accounts

DeFi and on-chain products

Provide off-ramp exits for your users without touching banking infrastructure yourself. HoneyCoin's OTC desk handles institutional-size USDC redemption with locked pricing.

Explore OTC Desk

Frequently asked questions

What developers and CTOs ask before integrating.

What is a USDC payment API and how does it work in Africa?

A USDC payment API lets your application programmatically accept, send, and settle USDC across multiple markets. HoneyCoin's USDC payment API bridges on-chain USDC with local rails — your customers pay in mobile money or bank transfer, your wallet receives USDC, or vice versa. One REST endpoint covers 18 African countries.

Which chains does the USDC API support?

USDC on Ethereum, Arbitrum, Base, Polygon, BSC, and Optimism. Receive and send on any chain per transaction.

How do I authenticate?

API key authentication over HTTPS. Sandbox keys are immediate; production keys after KYB verification.

Is there a sandbox?

Yes. Full-featured sandbox with synthetic data for collections, payouts, virtual accounts, and webhooks. Available immediately after sign-up at docs.honeycoin.app.

Does the API support webhooks?

Yes. Signed HMAC webhooks for every state change with retry and deduplication.

What are the rate limits?

Generous for production, scale with volume. Contact sales for custom burst limits on batch payouts.

Can I run cross-border payroll with this API?

Yes. One bulk payout call with a list of destinations across 18 markets. HoneyCoin handles FX, local-rail delivery, and reconciliation.

How does HoneyCoin compare to Circle's direct USDC integration?

Circle issues USDC and is excellent for markets with native banking integration. HoneyCoin is the last-mile layer for Africa — converting USDC into mobile money and local bank accounts across 18 fragmented markets. Keep USDC treasury on Circle or Coinbase; use HoneyCoin for African on/off-ramp.