Google Wallet — Protocol Analysis and API Integration Services

For digital wallets, passes, payment tokens and Wear OS integration with Google Assistant—compliant integration solutions. Starting at $300

Professional delivery: Protocol analysis · Source code implementation · OpenData / OpenFinance
OpenData · Tokenization · Passes API · NFC / EMV

Securely connect Google Wallet's cards, passes and payment capabilities to your system

We provide end-to-end deliverables for enterprise back-ends and mobile clients—from protocol analysis and tokenization schemes to Passes / Transit / Loyalty issuance, and Wear OS + Assistant synchronization, ensuring privacy compliance and scalable production deployment.

Payment Tokenization — Support Google Pay token flows, interface with issuing banks or payment gateways for tokenization, server-side decryption/verification design (PCI / EMV guidance included).
Passes / Tickets / Loyalty integration — Generate and issue Boarding Passes, Event Tickets, Loyalty Cards, Transit Passes; supports Webhooks, dynamic updates, and offline display.
Device integration & notifications — Wear OS quick access, Assistant prompts, and deep integration with Quick Settings for improved user experience.
Privacy & security compliance — Design minimizing data retention, consent records, revocation and cross-region regulatory alignment (GDPR, CCPA, etc.).
Start integration View deliverables

Deliverables and Examples

Standard Deliverables

  • Protocol analysis report (Google Wallet / Google Pay / Passes API / NFC token workflow)
  • Production-grade backend implementations (Node.js / Python / Go) for signing, issuance and verification of Passes and Tokens
  • Android client integration examples (Google Play Services integration, Quick Settings and Wear OS support)
  • OpenAPI / Swagger API documentation, Webhook specifications and security test cases
  • Compliance recommendations (PCI, privacy, data retention and minimization) and deployment guides

Interface Example (pseudo-code / API template)

{
  "POST /api/wallet/passes/create": {
    "headers": {"Authorization": "Bearer <SERVICE_TOKEN>", "Content-Type": "application/json"},
    "body": {
      "type": "event_ticket",
      "user_id": "user_123",
      "event": {
        "name": "Live Concert",
        "date": "2026-03-12T20:00:00Z",
        "seat": "A12"
      }
    }
  },
  "Response": {
    "pass_id": "pass_abc123",
    "claim_url": "https://wallet.example.com/claim/pass_abc123"
  }

// Client calls claim_url, Google Wallet SDK handles display and offline caching

Key Points for Payment Token Integration

We provide integration flow: obtain Google Pay merchant credentials → receive and validate payment tokens → exchange with issuing bank / gateway back-end → handle failure/cancellation callbacks. Support offline tokens and dynamic key rotation strategies.

Core Benefits

  • Shorten time to market: end-to-end runnable code and sample SDKs
  • Enhanced security: implement tokenization and key management following best practices
  • Scalability: support high-concurrency token issuance and batch passes management
  • Compatibility: adapt to Wear OS, Assistant and Android quick entry points

API Integration Quick Guide

  1. Define use cases: payments, passes, boarding passes, or transit cards, etc.
  2. Obtain required Google credentials (service account, merchant ID, Passes API authorization).
  3. Backend: implement JWT signing service, webhook receiver and token decryption channel.
  4. Mobile: integrate Google Play services / Wallet SDK, support offline display and update logic.
  5. Testing: functional tests, compliance audits, simulate offline and key rotation tests.
  6. Delivery: OpenAPI docs, deployment scripts and monitoring/alert templates.

About Us

We are a studio focused on app protocol analysis and API integration, with teams experienced in fintech, mobile SDKs, and cloud security. We provide end-to-end services from protocol extraction, interface refactoring, to Open Data access and third-party authorization workflow implementation.

  • Supports Android / iOS / Server delivery
  • Compliance-first: data minimization, audit trails and NDA support
  • Deliverables include: source code, OpenAPI documents, sample code and deployment instructions
  • Transparent pricing: starting at $300, with payment after delivery (terms apply)

Contact Us

Ready to start? Please use the link below to submit the target App name and integration requirements. We will respond within 1 business day with a preliminary plan and quote.

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📱 Google Wallet Official Description (Original content, collapsed)

Google Wallet provides quick and secure access to everyday credentials: card payments, boarding passes, movie tickets, transit cards, loyalty cards, and more. It supports quick access via phones, Wear OS devices, and Google Assistant.

  • Three quick entry points: system shortcuts, home screen, and Assistant
  • Wear OS support: quick access from the watch face
  • Rich content: cards, tickets, passes, loyalty cards, driver's license and car keys (some features limited to the US)
  • Smart suggestions: push required credentials based on schedule and location
  • Receipts and transaction details: automatically extracted from emails/searches for easier management
  • Interop with Google ecosystem: Calendar, Maps, Assistant showcasing card data
  • Privacy and security: Android security features (2-step verification, Find My Device, remote wipe) and payment tokenization to protect real card numbers
  • Device and version support: Android (Lollipop 5.0+), Wear OS, Fitbit devices; some admin account features limited
  • More help: support.google.com/wallet