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📄 Product Requirements Document (PRD)

Quipay — Autonomous Payroll Protocol on Stellar


1. Product Overview

1.1 Product Name

Quipay

1.2 Tagline

Payroll on Autopilot

1.3 Product Summary

Quipay is a decentralized payroll infrastructure built on Stellar using Soroban smart contracts. It enables employers to automate workforce payments using programmable streaming payment contracts and AI-assisted treasury management.

The protocol supports global workforce payroll with real-time salary streaming, treasury solvency management, and automated payment execution.


2. Product Vision

Quipay aims to become the default global payroll settlement layer by enabling:

  • Borderless salary payments
  • Real-time payroll streaming
  • Autonomous treasury optimization
  • Transparent and verifiable payroll execution

3. Problem Statement

Traditional payroll systems suffer from:

3.1 Operational Inefficiencies

  • Manual payment processing
  • Delayed settlement cycles
  • Multi-jurisdiction payroll complexity

3.2 Financial Limitations

  • High cross-border payment fees
  • Currency conversion overhead
  • Treasury liquidity mismanagement

3.3 Trust & Transparency Issues

  • Lack of verifiable payment records
  • Payroll disputes
  • Limited payment flexibility

4. Goals & Objectives

4.1 Primary Goals

  1. Enable continuous salary streaming using Soroban smart contracts
  2. Provide secure employer treasury management
  3. Enable AI-driven payroll automation
  4. Support global multi-token payroll payments

4.2 Success Metrics (KPIs)

Metric Target
Payroll stream execution success > 99.9%
Treasury solvency accuracy 100%
Worker withdrawal latency < 5 seconds
Transaction cost <$0.01 average
Employer onboarding time < 10 minutes

5. Target Users

5.1 Employers

  • DAOs
  • Remote-first companies
  • Web3 startups
  • International contractors

5.2 Workers

  • Freelancers
  • Remote employees
  • Gig workers

5.3 Treasury Managers

  • Finance teams
  • Payroll administrators

6. Core Features

7.1 Payroll Streaming Engine

Description: Allows employers to stream salary payments continuously over time.

Functional Requirements:

FR-PS-1 Create Payroll Stream

  • Employer specifies:
    • Worker address
    • Token asset
    • Payment rate
    • Start timestamp
    • End timestamp

FR-PS-2 Withdraw Earned Salary

  • Workers can withdraw earned balance at any time.

FR-PS-3 Cancel Payroll Stream

  • Employer or authorized agent can terminate stream.
  • Contract must:
    • Pay worker owed amount
    • Return remaining funds to employer

7.2 Treasury Vault

Description: Employer fund storage contract that guarantees payment solvency.

Functional Requirements:

FR-TV-1 Deposit Treasury Funds

  • Employers deposit tokens used for payroll.

FR-TV-2 Solvency Verification

  • System must prevent creation of streams if liabilities exceed treasury balance.

FR-TV-3 Treasury Withdrawals

  • Employers can withdraw unused funds.

FR-TV-4 Multisig Support

  • Treasury Vault supports multi-signature Stellar accounts as admin.
  • Enables decentralized governance for DAOs and enterprise clients.
  • Signature threshold validation occurs at Stellar network level before contract execution.
  • See DAO Treasury Setup Guide for configuration details.

7.3 Workforce Registry

Description: Stores worker payment metadata.

Functional Requirements:

FR-WR-1 Register Worker

  • Worker wallet
  • Preferred payment token
  • Metadata reference hash

FR-WR-2 Update Worker Profile

7.4 AI Automation Gateway

Description: Off-chain AI agent responsible for automating payroll operations.

Functional Requirements:

FR-AI-1 Authorized Agent Registry

  • Whitelisted AI wallets can execute automation tasks.

FR-AI-2 Scheduled Payroll Execution

  • AI triggers payment cycles.

FR-AI-3 Treasury Optimization

  • AI recommends or executes treasury rebalancing.

8. Non-Functional Requirements

8.1 Security

  • All fund transfers must require authorization
  • Prevent double withdrawal
  • Enforce treasury solvency invariants
  • Protection against timestamp manipulation

8.2 Performance

  • Stream withdrawal must execute within one ledger cycle
  • Smart contracts must optimize storage costs

8.3 Reliability

  • Contracts must support deterministic execution
  • Protocol must ensure payment consistency even under network congestion

8.4 Scalability

  • Support thousands of concurrent payroll streams
  • Efficient storage indexing

9. Technical Architecture

9.1 Smart Contract Modules

Payroll Stream Contract

Responsible for:

  • Stream creation
  • Accrual calculation
  • Withdrawals
  • Stream lifecycle management

Treasury Contract

Responsible for:

  • Employer funds custody
  • Liability accounting
  • Deposit and withdrawal logic

Workforce Registry Contract

Responsible for:

  • Worker profile storage
  • Metadata management

Automation Gateway Contract

Responsible for:

  • AI authorization
  • Automated execution routing

9.2 Off-Chain Components

AI Treasury Agent

Handles:

  • Payroll scheduling
  • Risk detection
  • Treasury balancing
  • Employer notifications

10. Data Model

Payroll Stream

  • Employer Address
  • Worker Address
  • Token Address
  • Payment Rate
  • Start Time
  • End Time
  • Withdrawn Amount
  • Stream Status

Treasury

  • Employer Address
  • Token Balances
  • Liability Ledger

Worker Profile

  • Wallet Address
  • Payment Preference
  • Metadata Reference

11. User Flows

Employer Flow

  1. Connect wallet
  2. Deposit treasury funds
  3. Register workers
  4. Create payroll streams
  5. Monitor payroll dashboard

Worker Flow

  1. Connect wallet
  2. View active streams
  3. Withdraw earned salary
  4. Track payment history

12. Compliance Considerations

  • Support KYC integration via external providers
  • Maintain hashed payroll audit logs
  • Allow jurisdiction tagging for tax reporting

13. Risk Analysis

Risk Mitigation
Treasury insolvency Enforce liability checks
Unauthorized automation Agent whitelisting
Smart contract exploits Formal auditing
Payment disputes Immutable ledger audit logs

14. MVP Scope

Included

  • Single employer treasury
  • XLM + one asset support
  • Basic payroll streaming
  • Manual withdrawals
  • AI agent authorization framework

Excluded

  • FX conversion
  • Tax automation
  • Multi-employer orchestration

15. Future Roadmap

  • Multi-currency FX routing
  • DAO payroll governance
  • Bonus and performance streaming
  • On-chain employment agreements
  • Compliance automation
  • AI predictive treasury analytics

16. Dependencies

  • Stellar Soroban Runtime
  • Stellar Asset Contracts
  • Off-chain AI infrastructure
  • Wallet integration (Freighter, Albedo, etc.)

17. Open Questions

  • Should workers allow partial stream withdrawal?
  • Should payroll streams be transferable?
  • Should employer governance be multi-sig controlled?Resolved: Treasury Vault supports multisig admin accounts. See DAO Treasury Setup Guide
  • Should AI agents require stake-based trust?

18. Release Plan

Phase Description
Phase 1 Protocol MVP
Phase 2 AI Automation Integration
Phase 3 Compliance & Reporting
Phase 4 Enterprise Payroll Features

19. Acceptance Criteria

The product is considered successful when:

  • Employers can create payroll streams
  • Workers can withdraw real-time earnings
  • Treasury solvency is enforced
  • AI agents can trigger automated payroll actions
  • All transactions are verifiable on Stellar

Engineering Notes

Quipay must prioritize:

  • Payment correctness over feature velocity
  • Treasury safety invariants
  • Minimal contract storage footprint
  • Upgrade-safe architecture