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Production Architectural Blueprints

Explore by Use Case

Whether you are building modern corporate expense cards, consumer credit and debit programs, SaaS platform billing, fleet fuel controls, travel booking rails, stablecoin cards, or AI agent payment permissions, these blueprints provide end-to-end architecture diagrams, sequence flows, and API recipes.

12 min readCorporate Spend

Expense Management

Issue smart corporate cards with automated receipt matching, real-time MCC categorization, spend policy enforcement, and seamless ERP/accounting sync.

Core Implementation Features
  • Real-time spend limits and dual-message authorization webhooks
  • Automatic receipt matching and OCR metadata ingestion
  • Dynamic Merchant Category Code (MCC) restriction policies
  • Two-way sync with ERP and general ledger platforms
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14 min readConsumer Banking

Consumer Credit and Debit

Launch branded consumer debit and revolving credit card programs with instant digital card issuance, Apple/Google Pay push-provisioning, and interest calculation engines.

Core Implementation Features
  • Instant virtual debit and credit card issuance
  • Push-provisioning to Apple Pay and Google Wallet
  • Real-time ledger balances with APR interest calculation
  • Built-in KYC/CIP identity verification flows
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16 min readB2B Banking

Commercial Credit and Debit

Power enterprise treasury and B2B purchasing with multi-card corporate accounts, hierarchical credit lines, automated sweep transfers, and vendor payment controls.

Core Implementation Features
  • Hierarchical parent-subsidiary corporate credit lines
  • Multi-card issuance with individualized sub-limits
  • Automated end-of-day balance sweeps and repayments
  • Rich Level 2 and Level 3 transaction data capture
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15 min readSaaS & Platforms

Software Platforms

Embed financial services into vertical SaaS and marketplaces. Split checkout payments, automate sub-merchant onboarding, and monetize interchange with embedded cards.

Core Implementation Features
  • Automated sub-merchant entity onboarding and KYB
  • Multi-party payment splits with fee retention
  • White-label card issuance for platform users
  • Monetize interchange share through embedded finance
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13 min readLogistics & Auto

Fleet Management

Control fuel, maintenance, and driver route expenses with odometer validation, driver ID prompts, fuel pump MCC locks, and fraud prevention.

Core Implementation Features
  • Fuel pump and vehicle maintenance-only MCC locks
  • Driver ID and odometer input prompts at pump
  • Real-time geofence and route-based transaction rules
  • Level 3 fleet fuel data capture (gallons, fuel type, price)
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11 min readLoyalty & Engagement

Perks and Rewards

Build programmable cash-back, points accrual, and merchant-funded reward experiences tied directly to real-time transaction authorizations.

Core Implementation Features
  • Real-time reward calculation on authorization webhooks
  • Automated points balance ledger and cash-back disbursements
  • Merchant-funded affiliate rewards and instant discounts
  • Configurable boost campaigns and spending tier bonuses
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12 min readTravel & Hospitality

Travel

Issue single-use virtual cards for OTA airline and hotel bookings, manage multi-currency balances, and eliminate foreign transaction fees.

Core Implementation Features
  • Dynamic single-use virtual cards for flight and hotel bookings
  • Automated reservation cancellation and refund matching
  • Multi-currency balances with wholesale FX rate conversion
  • Zero foreign transaction fee routing with automated reconciliation
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14 min readWeb3 & Crypto

Stablecoin-Backed Cards

Bridge digital assets to fiat payment networks. Back physical and virtual debit cards with USDC/USDT balances, executing just-in-time fiat conversion at swipe.

Core Implementation Features
  • Just-in-time (JIT) stablecoin to USD/EUR conversion on swipe
  • Multi-chain wallet support (Solana, Ethereum, Base, Polygon)
  • Non-custodial or custodial collateral balance verification
  • Automated liquidity pool rebalancing and compliance screening
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13 min readAI & Autonomous Systems

Issuing for Agents

Equip autonomous AI agents and automated workflows with programmable single-task virtual cards, strict per-prompt budget limits, and cryptographic guardrails.

Core Implementation Features
  • Ephemeral single-task cards generated per AI execution task
  • Hard budget perimeters with automatic expiration on task completion
  • Granular API merchant allowlists (e.g. OpenAI, AWS, GitHub only)
  • Cryptographic agent authorization audit trails and anomaly locks
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Need custom financial rail orchestration?

Our solutions engineering team helps high-volume platforms design custom card BIN routing, bespoke limits, agent permissions, and dedicated ledger partitions.

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