Swap at the rate banks keep for themselves.
Every swap pays the community that makes FX fair — not a middleman. And you can be one of them.
Where the book needs liquidity right now.
Live FX demand · last 30 days| Corridor | Asked | Median quote | Est. APY | Est. turnover | |
|---|---|---|---|---|---|
Loading live corridor demand from gSera…
Wherever you are, you're paying the middleman.
If you've ever tapped a card abroad, invoiced across a border, or sent money home, you've paid a spread you never agreed to.
Every tap abroad carries a ~3% card markup you never see itemised — priced into the rate itself.
The freelancer invoices overseas and loses a cut to platform FX before a dollar lands.
The "zero-fee" transfer is priced 2% off the real rate. The fee didn't vanish — it hid.
A business pays across three currencies — and gets taxed by the spread on every hop through USD.
Wages sent home lose up to 6% every month — from the people who can least afford it.
Savings melt in a currency with two rates — the official one, and the one you can actually get.
One fix, for everyone: the real rate. The spread a middleman used to pocket now flows to the community — the LPs, evangelists, and builders behind every swap. That's who you're paying now. And you can be one of them.
Even the fintechs ride the same correspondent rails underneath — they hide the friction rather than remove it. The spread Sera does charge goes to the community providing the liquidity, not to a rent collector — why FX moves onchain first →
Build on it. It's open at the edges.
The matching engine is our craft — but everything you build against it is open. The payment rails, the agent MCP, and the templates to build on them live on GitHub: auditable, forkable, and yours to extend.
Settlement MCP for AI agents — 32 tools over Sera's stablecoin FX rails.
github.com/sera-cx/sera-mcp →Agent templates, a bundled CLI, and a working x402 service on the MCP.
github.com/sera-cx/sera-agents →Payment rails — accept and settle in any of 20+ currency stablecoins.
github.com/sera-cx/sera-pay →The full rates engine institutions pay millions for — open-sourcing next.
Watch the org →Open KYC · KYB · KYT · KYA data sources — a free, community-built compliance layer.
Watch the org →Get paid in anything. Keep what you want.
A website, a storefront, a marketplace or a PSP can take stablecoin payments without holding a currency it did not choose. Price the order in ringgit, let the customer pay in dollars, receive ringgit — the conversion happens inside settlement, and nobody takes custody on the way.
Start with a payment link and no code at all. Move to the API when you need an order reference on every payment and a webhook when it settles.
No protocol fee. The liquidity provider filling the conversion earns the spread.
Settlement you can call.
One HTTP surface over the whole book: quote a pair, settle an intent, read live reference rates, list every corridor. Same engine the protocol runs on, no account manager in the way.
MCP server at agents.sera.cx/mcp — connect an agent and it can quote and settle on its own.
curl -X POST https://agents.sera.cx/quote \
-H "Content-Type: application/json" \
-d '{
"from_token": "USDT",
"to_token": "XSGD",
"amount": "1000"
}'