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Stablecoin API · Payment orchestration

Stablecoin Payment API for cross-border payments: one integration that orchestrates licensed stablecoin API providers, banks, EMIs and exchanges

One integration over every licensed provider you use: stablecoin API providers, banks, EMIs and exchanges. FreeBnk quotes across them, routes each payment by your objective and lets you switch providers without changing code. We never hold funds.

  • 1 APIintegration
  • 70+network countries
  • 0funds held

What the API does

ONE API. EVERY PROVIDER.

The FreeBnk Stablecoin Payment API sits over the licensed providers you choose and gives you one set of objects, states, webhooks and evidence for all of them. Six capabilities, one integration.

Payouts

Send USDT or USDC and pay beneficiaries in local currency. The winning licensed provider receives the stablecoin, converts it and pays the bank account.

Pay-ins (collections)

Collect local currency and receive stablecoin in your wallet. Funding instructions name the licensed provider’s account, with your reference carried through.

Provider quotes & routing

Every quote is the provider’s own quote plus FreeBnk’s fee line, each with its owner. Nothing is hidden in the rate, and the quote says why its provider won.

Virtual accounts & addresses

Provider-issued named accounts and stablecoin deposit addresses for your customers, with the issuing provider on every account.

Webhooks & signed receipts

Signed events for every state, in order per object, retried and replayable. Every settled payment comes with a receipt you can verify offline.

Provider onboarding hub

One reusable KYB pack for every provider application, tracked from submission to production. Activate a new provider through settings, not a new integration.

70+ countries in our provider network

Built for

Banks Fintechs & PSPs Exchanges & OTC desks Merchants & platforms Import/export businesses
Canada European Union Türkiye UAE China Pakistan India Philippines Nigeria South Africa Brazil South Korea Saudi Arabia + 57 more countries

How orchestration works

YOUR OBJECTIVE. THE BEST PROVIDER.

Every eligible provider quotes the payment. Hard filters remove anything without a licence in force, outside its limits or closed by your switches; your objective picks the winner, and the quote explains why. If a provider fails before funds move, the next one takes over. After funds move, nothing is rerouted until the first provider has refunded. You integrate once and add providers without new code.

How a payout is orchestrated Illustrative
1 · Quote
2 · Route
3 · Execute
4 · Verify
Every enabled provider quotes the corridor. Your objective picks the winner, and the quote says why. The licensed provider executes under its own licence. Beneficiary paid. Evidence signed, receipt issued.

Who builds on it

ONE API. MANY BUSINESSES.

A stablecoin payment API built for regulated firms that move money for customers: fintechs, PSPs, EMIs, banks and remittance companies. Integrate once and add providers and corridors as you grow.

Fintechs & PSPs

Add stablecoin payouts and collections through the providers you choose, and switch between them without rebuilding.

Payouts · Pay-ins · Webhooks

Remittance & payroll

Pay workers, families and contractors in local currency through whichever licensed provider prices the corridor best.

Payouts · Routing

Marketplaces & platforms

Pay sellers and suppliers abroad and collect from buyers locally, with every transfer tied to an order reference.

Payouts · Pay-ins · Wallets

Exchanges & OTC desks

Add local on- and off-ramps in new markets by enabling providers, not by building new integrations.

Pay-ins · Payouts · Compliance

Banks & EMIs

Offer stablecoin settlement to business clients through providers you contract with, keeping your own limits and controls.

Payouts · Routing · Dual control

Treasury & import/export

Move funds between entities and pay suppliers outside banking hours, with a quoted rate before you send.

Payouts · Quotes · Wallets

For developers

INTEGRATE ONCE. SWITCH PROVIDERS.

One stablecoin payment API contract for every provider. Adding a provider is configuration, not code: the same objects, states, webhooks, errors and receipts whichever provider carries the payment.

OpenAPI 3.1One contract behind the reference, the SDKs and the agent tools.
Idempotent by defaultEvery money-moving request takes an Idempotency-Key; retries replay.
Standard WebhooksEd25519-signed, in order per object, retried and replayable.
Clear errorsProblem details with a stable code, a retryable flag and a fix.
Dated versionsA stable /v1 path, with behaviour pinned by a version header.
Built for AI agentsDocs as llms.txt and an MCP server, sandbox first, with confirmation for live money movement.
quote → payout → receipt · curl
# 1. Ask every enabled provider for a quote
curl -X POST $FREEBNK_BASE_URL/quotes \
  -H "Authorization: Bearer $FREEBNK_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{ "direction": "payout",
        "source": { "asset": "USDC", "amount": "1000" },
        "destination": { "currency": "INR", "rail": "imps" } }'
# → licensed_entity, licence_of_record, fee_lines,
#   route_explanation, expires_at
# 2. Accept it and create the payout
curl -X POST $FREEBNK_BASE_URL/payouts \
  -d '{ "quote_id": "qt_…", "beneficiary_id": "ben_…",
        "refund_account_id": "acct_…" }'
# 3. On payout.settled, fetch and verify the receipt
freebnk verify receipt.json --keys manifest.json

Request shapes from the API reference, abridged. Sandbox access is by invitation; the full documentation comes with your sandbox key.

NON-CUSTODIAL BY DESIGN

FreeBnk is a technology provider. The licensed provider that executes a payment holds the funds under its own licence; FreeBnk routes the instruction, observes what happens and signs the evidence.

We never hold funds

No FreeBnk key, account or float can move value. Funds go from you or the payer to the licensed provider and on to the beneficiary, never through FreeBnk.

Your keys stay on your servers

The FreeBnk Relay runs inside your own stack with your own provider key. It checks every signed instruction against your policy and executes it at most once.

Licence of record on every quote

You always see which regulated company carries a payment, and under which licence.

Settled means verified

Two independent chain observers and the provider’s own records confirm both legs before a payment counts as settled.

Routing never serves FreeBnk

Providers are ranked on your objective and your all-in cost. No FreeBnk revenue or rebate is a routing input.

Audit trail & access control

Every call attributed to one identity, dual control on sensitive changes, built to SOC 2 and ISO 27001 control requirements.

FAQ

STABLECOIN PAYMENT API, EXPLAINED

Short answers to the questions fintechs, PSPs and banks ask before integrating.

What is a stablecoin payment API?

A stablecoin payment API lets a business send, receive and convert stablecoins such as USDT and USDC programmatically, and connect them to local bank payments. The FreeBnk Stablecoin Payment API does this as an orchestration layer: one integration over the licensed providers you choose, with payouts in local currency, collections settled in stablecoins, provider quotes, routing, webhooks and signed receipts.

What does payment orchestration mean here?

FreeBnk sits between your platform and several licensed providers: stablecoin API providers first, then banks, EMIs and payment institutions, and licensed exchanges. For each payment it asks every eligible provider for a quote, picks the winner by your objective (best price, preferred provider or named rail), sends the instruction and verifies the result. You can add or switch providers without changing your code.

Does FreeBnk hold my funds?

No. FreeBnk is a technology provider and never holds, controls or redirects funds. The licensed provider that executes a payment holds the funds under its own licence and is named as the licence of record. Provider keys that can move money stay on your own servers, used by the FreeBnk Relay.

Which countries and currencies are covered?

The FreeBnk provider network covers 70+ countries, including corridors across Africa, Asia, Latin America, the Middle East and Europe. Which corridors you can use depends on the providers you activate; tell us where your customers are and we will map the providers, rails and limits for each corridor.

Which stablecoins and networks are supported?

USDT and USDC on the major networks, depending on what each provider supports. Every amount is a decimal string with its asset, and conversion between stablecoins or across chains is available as a transfer.

How fast are payouts?

It depends on the provider and the local rail. Many corridors pay out within minutes; others follow local bank processing. You can route for a named rail, and you receive a webhook at every state, so you never have to poll.

How is pricing structured?

Every quote is the provider’s own quote, with every fee line naming its owner. FreeBnk is paid a software licence fee, shown as its own separate line. You can use rates you negotiated with a provider directly or rates FreeBnk has negotiated, and nothing is hidden in the rate.

How does compliance work?

Each licensed provider applies its own KYB, screening and limits under a policy version it signs, and its approval of every payment is recorded. FreeBnk relays the compliance and Travel Rule data, enforces the provider’s limits and keeps a signed audit trail. Freebnk Europe, UAB is a technology provider and does not provide regulated financial services itself.

Do I need my own licence to use the API?

The API is built for regulated firms such as fintechs, PSPs, EMIs, banks and remittance companies. You contract with each provider directly and remain its account holder; one reusable KYB pack makes applying to each provider faster, but each provider makes its own decision. We will walk through your model with you before you start.

How long does integration take?

The sandbox is designed to take you from an API key to a verified receipt in under thirty minutes. The API is REST with JSON, an OpenAPI 3.1 contract, idempotency keys and signed webhooks, and adding a second provider later needs no code change. Sandbox access is by invitation.

Breakdancer in a one-hand handstand with motion trails

Free to

SEND RECEIVE SETTLE CONVERT SCALE CONNECT GROW EVERYTHING

For regulated firms that move money across borders, there’s FreeBnk.

TALK TO OUR TEAM

Tell us which providers you use today and the corridors and volumes you need. We’ll walk you through the orchestration model and set up sandbox access.