©2025
Hosted stablecoin checkout without friction
The easiest way to add a stablecoin payout rail to your payment stack. Send customers to a PYMSTR-hosted checkout, we handle wallet creation, orchestration, paymaster-sponsored gas, and bundled execution with atomic settlement.
Powering borderless commerce
About us
Keep your catalog, cart, and order system. Route buyers to a PYMSTR-hosted checkout and we do the rest: wallet creation for buyers and sellers, your fee-split rules, on-chain settlement, and paymaster gas sponsorship so users never see network fees. Our bundling applies your policy in one motion and guarantees final settlement, you receive exactly what you’re supposed to.
Benefits
Services we provide
The payout stack in
4 Layers
Wallet
Spin up secure wallets in-flow. Keys aren’t a single secret: they’re MPC/threshold shares (e.g., 2-of-3) with one on the device, one with a key service, and a recovery share tied to social factors (email/phone) or a guardian wallet (e.g., MetaMask). No seed phrase, fast restore, user control by default.
Wallet
Spin up secure wallets in-flow. Keys aren’t a single secret: they’re MPC/threshold shares (e.g., 2-of-3) with one on the device, one with a key service, and a recovery share tied to social factors (email/phone) or a guardian wallet (e.g., MetaMask). No seed phrase, fast restore, user control by default.
Branding
Spin up secure wallets in-flow. Keys aren’t a single secret: they’re MPC/threshold shares (e.g., 2-of-3) with one on the device, one with a key service, and a recovery share tied to social factors (email/phone) or a guardian wallet (e.g., MetaMask). No seed phrase, fast restore, user control by default.
Orchestration
You set who gets paid and how much. We enforce it every time. Only approved destinations can receive funds (approved list) Caps to prevent too many or too-large payouts (limits) Alerts when something looks unusual (automatic fraud checks) Each order is processed once, with reliable event logs.
Orchestration
You set who gets paid and how much. We enforce it every time. Only approved destinations can receive funds (approved list) Caps to prevent too many or too-large payouts (limits) Alerts when something looks unusual (automatic fraud checks) Each order is processed once, with reliable event logs.
Orchestration
You set who gets paid and how much. We enforce it every time. Only approved destinations can receive funds (approved list) Caps to prevent too many or too-large payouts (limits) Alerts when something looks unusual (automatic fraud checks) Each order is processed once, with reliable event logs.
Execution
We run the payment in one go according to your rules and cover network fees for the user (paymaster). We simulate first, cap fees, and fall back safely if the network is busy. No custom smart-contract build or audit needed for wallet logic.
Execution
We run the payment in one go according to your rules and cover network fees for the user (paymaster). We simulate first, cap fees, and fall back safely if the network is busy. No custom smart-contract build or audit needed for wallet logic.
Execution
We run the payment in one go according to your rules and cover network fees for the user (paymaster). We simulate first, cap fees, and fall back safely if the network is busy. No custom smart-contract build or audit needed for wallet logic.
Settlement
Funds land on-chain in stablecoin with automatic splits to the seller and your platform, exact amounts, no more, no less. You get signed receipts and clean exports. No chargebacks.
Settlement
Funds land on-chain in stablecoin with automatic splits to the seller and your platform, exact amounts, no more, no less. You get signed receipts and clean exports. No chargebacks.
Settlement
Funds land on-chain in stablecoin with automatic splits to the seller and your platform, exact amounts, no more, no less. You get signed receipts and clean exports. No chargebacks.
Our Process
We integrate, test, and launch, Together
01
Align & scope
Meet product and engineering leads to map goals, data flows, and compliance needs. Signed SOW in hand, we spin up a dedicated Slack channel.

01
Align & scope
Meet product and engineering leads to map goals, data flows, and compliance needs. Signed SOW in hand, we spin up a dedicated Slack channel.

01
Align & scope
Meet product and engineering leads to map goals, data flows, and compliance needs. Signed SOW in hand, we spin up a dedicated Slack channel.

02
Design integration
Blueprint auth, wallet provisioning, and split‑payment logic to fit your stack. API keys + sandbox credentials on day one.

02
Design integration
Blueprint auth, wallet provisioning, and split‑payment logic to fit your stack. API keys + sandbox credentials on day one.

02
Design integration
Blueprint auth, wallet provisioning, and split‑payment logic to fit your stack. API keys + sandbox credentials on day one.

03
Build & QA
Your devs drop in our SDK while our team monitors testnet traffic, runs security checks, and tunes gas funding. Weekly checkpoint demo.

03
Build & QA
Your devs drop in our SDK while our team monitors testnet traffic, runs security checks, and tunes gas funding. Weekly checkpoint demo.

03
Build & QA
Your devs drop in our SDK while our team monitors testnet traffic, runs security checks, and tunes gas funding. Weekly checkpoint demo.

04
Launching with support
Flip to production in < 72 h. We track KPIs, run post‑launch QA, and provide 24 / 7 support with clear hand‑off docs.

04
Launching with support
Flip to production in < 72 h. We track KPIs, run post‑launch QA, and provide 24 / 7 support with clear hand‑off docs.

04
Launching with support
Flip to production in < 72 h. We track KPIs, run post‑launch QA, and provide 24 / 7 support with clear hand‑off docs.

Why now
Market forces
You can't ignore



Fortune 500 adoption
Over half of Fortune 500s are building on‑chain; sellers and buyers now expect crypto payout options.
On Chain Volume
$34.72 trillion
Stablecoin settlement has tripled year‑over‑year, mainstream demand is here.
Regulatory clarity
New stablecoin frameworks
(MiCA in EU, proposed US regs) create clear compliance paths for platforms.

Regulation is an OpportunityOpportunity

Regulation is an OpportunityOpportunity
Regulation is an OpportunityOpportunity
Mature dev tooling
EVM L2s like Base deliver sub‑cent fees and battle‑tested infra, ready for production today.



Early Adopters












We’re onboarding a select group of marketplaces for early access. Be a launch partner.
Direct Slack channel
Priority
Direct Slack channel
Priority
Direct Slack channel
Priority
New features
Custom
New features
Custom
New features
Custom
Lifetime discount on fees
Pricing
Lifetime discount on fees
Pricing
Lifetime discount on fees
Pricing

Built by trading desk veterans with $4B+ on-chain.
Built by trading desk veterans
with $4B+
on-chain.
FAQ's
Frequently asked questions
Not sure about something? Check our FAQ for quick answers and helpful details.
What does PYMSTR® SDK do?
PYMSTR adds a stablecoin payout rail to your store or marketplace via a hosted checkout. We handle wallets, orchestration & settlement, automated fee-splits, and paymaster-sponsored gas so customers and sellers never see network fees.
Who is PYMSTR® for?
Online merchants and marketplaces, plus commerce/PSP platforms that want fast, global payouts without rebuilding their stack.
Do we need a contract to start?
No. Self-serve signup: create an account, get sandbox keys, set redirect URLs and a webhook secret, and start testing. Upgrade to production from the dashboard.
Which chains are supported?
USDC on leading EVM L2s, Base by default, with additional chains available as needed.
What about fees and chargebacks?
Pymstr takes a fixed percentage fee; network fees are hidden from the user (sponsored). On-chain finality means no chargebacks; refunds are handled as reversals under your policy.
What does PYMSTR® SDK do?
PYMSTR adds a stablecoin payout rail to your store or marketplace via a hosted checkout. We handle wallets, orchestration & settlement, automated fee-splits, and paymaster-sponsored gas so customers and sellers never see network fees.
Who is PYMSTR® for?
Online merchants and marketplaces, plus commerce/PSP platforms that want fast, global payouts without rebuilding their stack.
Do we need a contract to start?
No. Self-serve signup: create an account, get sandbox keys, set redirect URLs and a webhook secret, and start testing. Upgrade to production from the dashboard.
Which chains are supported?
USDC on leading EVM L2s, Base by default, with additional chains available as needed.
What about fees and chargebacks?
Pymstr takes a fixed percentage fee; network fees are hidden from the user (sponsored). On-chain finality means no chargebacks; refunds are handled as reversals under your policy.
What does PYMSTR® SDK do?
PYMSTR adds a stablecoin payout rail to your store or marketplace via a hosted checkout. We handle wallets, orchestration & settlement, automated fee-splits, and paymaster-sponsored gas so customers and sellers never see network fees.
Who is PYMSTR® for?
Online merchants and marketplaces, plus commerce/PSP platforms that want fast, global payouts without rebuilding their stack.
Do we need a contract to start?
No. Self-serve signup: create an account, get sandbox keys, set redirect URLs and a webhook secret, and start testing. Upgrade to production from the dashboard.
Which chains are supported?
USDC on leading EVM L2s, Base by default, with additional chains available as needed.
What about fees and chargebacks?
Pymstr takes a fixed percentage fee; network fees are hidden from the user (sponsored). On-chain finality means no chargebacks; refunds are handled as reversals under your policy.



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Start testing stablecoin payouts with full API + docs access.