Move seamlessly between fiat and stablecoins. Anything to anything.
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USDC is becoming a practical payment rail for businesses.
Scaling it effectively means getting a few things right.
→ On/off-ramping
→ Managing conversion costs
→ Supporting multiple chains
Here's how Codex FX helps.
codex.xyz/blogs/usdc-payment…
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What is Codex Par?
Our 1:1 USDC ⇄ USDT swap API designed for payment operators.
Offer your customers stablecoin conversion at par with no added cost. Your usage fees are invoiced separately.
codex.xyz/par?utm_source=x&u…
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We're heading to TOKEN2049.
Join us with @Infinite for an evening exploring stablecoin payments and cross-border money movement, with drinks, food, and fireside chats.
🗓️ Tuesday, October 6
🕢 7:30 – 10:30 PM
RSVP below.
luma.com/lcv40t0m
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FX has relied on the same core rails for decades.
Onchain FX is changing how currencies are exchanged and settled.
→ Faster settlement
→ Atomic transactions
→ 24/7 execution
Here’s how it works.
codex.xyz/blogs/what-is-onch…
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We're hiring a Software Engineer, with 6–10 years of backend engineering experience across payments, stablecoins, FX, or crypto custody.
You'll own financial partner integrations end-to-end and build the automation layer for trading and treasury operations.
codex.xyz/careers/software-e…
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Your business has stablecoins. You need dollars.
Codex FX turns USDC and USDT into USD at wholesale rates, with firm quotes and fast settlement, 24/7/365.
Here’s how it works.
codex.xyz/blogs/how-to-conve…
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Stablecoins are changing how businesses move money across borders.
But how do they actually compare to international wires?
→ Faster settlement
→ Lower FX costs
→ 24/7 availability
Here's the full breakdown.
codex.xyz/blogs/stablecoins-…
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We're hiring a Senior Product Manager, with 6–10 years building cross-border payments products at a payments or stablecoin company.
You'll own payouts and collections end-to-end, from partner integrations and product strategy to the client experience.
codex.xyz/careers/senior-pro…
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We're hiring a Payment Operations Manager, with 6–10 years in payments, trading, or client operations at a crypto or digital asset company.
You'll own treasury, settlement, and client activation across APAC, then build the processes to scale them.
codex.xyz/careers/payment-op…
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Want instant 1:1 USDT ⇄ USDC swaps?
• Zero slippage
• API or dashboard
• Fees invoiced separately
Discover Codex Par in 40 seconds.
codex.xyz/par?utm_source=x&u…
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Stablecoin payments are only as efficient as the on/off-ramp behind them.
Choosing a provider comes down to:
→ Pricing
→ Corridor coverage
→ Settlement speed
Here's how to choose your stablecoin on/off-ramp provider.
codex.xyz/blogs/how-to-choos…
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Stablecoins can free up working capital by replacing prefunded balances and slow bank settlement.
But they create new treasury challenges around:
→ Liquidity
→ Custody
→ Conversion
Here's what stablecoin treasury management looks like.
codex.xyz/blogs/stablecoin-t…
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Your customers think a dollar onchain is a dollar.
Make it true.
codex.xyz/par
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Every large USDT ⇄ USDC swap comes with hidden costs, such as spread, slippage, and execution fees.
At scale, those costs either eat into your margins or create a worse experience for your customers.
Here's how payment operators offer true 1:1 swaps:
codex.xyz/blogs/how-to-swap-…
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Announcing Codex Par.
Instant 1:1 USDT↔USDC swaps through one API. No spread for your users. Codex handles the liquidity and settlement.
Now onchain, a dollar is a dollar.
codex.xyz/par
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The stablecoin sandwich has three layers:
1️⃣ The on-ramp
2️⃣ The transfer
3️⃣ The off-ramp
While the transfer moves in seconds, the on- and off-ramps determine your FX spread, settlement time, and ability to scale.
Learn more below.
codex.xyz/blogs/stablecoin-s…
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Stablecoin rails are only as good as the counterparty pricing them.
For PSPs, fintechs, neobanks, and more, the liquidity provider sets your spreads, your corridors, and your settlement times.
Here's 6 things to check before you pick one.
codex.xyz/blogs/how-to-choos…
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The US dollar is a major settlement currency for global trade, and increasingly dollars move as stablecoins.
For PSPs, fintechs, neobanks, and more, reliable USD on- and off-ramps have become core infrastructure.
Codex FX gives businesses a faster way to move between fiat, USDC, and USDT, with wholesale pricing and 24/7 settlement.
Learn more below.
codex.xyz/blogs/usd-on-ramp-…
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90% of Brazil's crypto flow is stablecoins.
Importers settling suppliers, companies paying vendors abroad, remittances, and more.
Codex FX connects BRL to onchain dollar liquidity, solving cross-border payments using stablecoin FX.
Learn more below.
codex.xyz/blogs/stablecoin-p…
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$230M.
New weekly volume record. The result of building the easiest way to access dollars globally.
We call it The Dollar Machine.
Our first step toward the world's onchain FX platform. Move between USDC, USDT, USD, and local fiat.
⚡ 24/7 settlement
💸 Wholesale rates
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Watch the full podcast with Darrell Duffie and @Haonan below.
YouTube:
piped.video/yshZ--HMzB4
Spotify:
open.spotify.com/episode/7E0…
Apple:
podcasts.apple.com/us/podcas…
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"About half the time, it's a satisfactory experience."
For years, FX has been broken for the businesses that depend on it most. Opaque pricing, slow settlement, and fragmented intermediaries.
Codex FX has changed the game.
💰 Wholesale rates
⚡ Near-instant settlement
🌍 24/7/365 availability
The choice is obvious.
codex.xyz
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Correspondent banking still moves most cross-border payments, but in high-friction corridors, the model is slow and expensive.
Stablecoins replace the settlement layer. For PSPs and fintechs, that changes the economics.
Learn more below.
codex.xyz/blogs/how-stableco…
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Mufasa: "Everything the light touches is our kingdom."
Simba: "What about those shadowy places?"
Mufasa: "No one knows what happens there, Simba. Not even the banks."
Simba: "Then where's the money?"
Mufasa: "In transit."
Codex is bringing the shadowy places into the light.
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Stablecoins are evolving from trading assets to cross-border payments infrastructure.
Most volume runs through two assets: USDC and USDT. For PSPs and fintechs, the question is rarely “which is better?”.
In practice, many need both.
Learn more below.
codex.xyz/blogs/usdc-vs-usdt…
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Nigeria is one of the world’s most important stablecoin markets.
The country moved ~$92B in onchain value between mid-2024 and mid-2025, with most of it driven by dollar demand in a naira-volatile economy.
Domestic payments in Nigeria are fast already. But cross-border payments still depend on slow banking rails, limited FX access, and expensive settlement.
Stablecoin-powered FX settlement helps bridge that gap by connecting local payment rails to always-on dollar liquidity.
Learn more below.
codex.xyz/blogs/stablecoin-p…
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Watch the full podcast with Darrell Duffie and @Haonan below.
YouTube:
piped.video/yshZ--HMzB4
Spotify:
open.spotify.com/episode/7E0…
Apple:
podcasts.apple.com/us/podcas…
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Cross-border payments move over $190T every year.
Yet the rails underneath still run on correspondent banks, office hours, trapped capital, and settlement windows that take 1–5 business days.
Stablecoins solve the middle leg, but PSPs and fintechs still need FX, liquidity, compliance, on/off-ramps, and local payout rails.
That’s stablecoin FX infrastructure. Fiat in. Stablecoin settlement in the middle. Fiat out.
Learn more below.
codex.xyz/blogs/what-is-stab…
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We're heading to @Money2020 Europe.
📆 June 2–4
📍 Amsterdam
Are you a fintech, PSP, or neobank moving between stablecoins and fiat?
Codex FX gives you 24/7 USDC, USDT, and fiat settlement in under 30 minutes at institutional volumes.
DM to book a physical meeting.
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Crypto payment card issuers face a daily settlement reality.
Their customers transact in stablecoins, but Visa and Mastercard require USD. The off-ramp between them can be slow and expensive.
Codex FX converts USDT and USDC to USD in under 30 minutes, 24/7, at wholesale rates.
For businesses issuing cards at scale.
codex.xyz
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Ever wonder how modern remittance companies are moving money?
1️⃣ Buy USDT/USDC from Codex FX with USD, at wholesale rates
2️⃣ Send the stablecoin to a local payout partner
3️⃣ Partner disburses to the customer in local currency
Correspondent banking takes 2–5 business days. This clears in minutes, weekends included.
Book a demo.
codex.xyz
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