Wave Accounting API
Free accounting software API from Wave (H&R Block owned) offering invoicing, expense tracking, and basic accounting for freelancers and very small businesses. Notably uses GraphQL.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Community/specialized tool. Apply standard security practices for category. Review documentation for specific security requirements.
⚡ Reliability
Best When
An agent needs to automate accounting for freelancers or very small businesses already using Wave's free tier, especially for invoice management.
Avoid When
Your users have complex accounting needs, multiple currencies, inventory, or more than a handful of employees.
Use Cases
- • Automating invoice creation and sending for freelancers
- • Reading financial data from Wave for reporting or analysis
- • Syncing customer records between Wave and other systems
- • Expense tracking automation for micro-businesses
- • Building lightweight accounting automation on a zero-budget stack
Not For
- • Businesses needing payroll beyond basic (limited payroll features)
- • Multi-currency businesses (limited multi-currency support)
- • Inventory management
- • Enterprise or growing businesses that will outgrow Wave
Interface
Authentication
OAuth2 authorization code flow. Access tokens expire in 60 minutes. Refresh tokens available. Scopes include account:read, account:write, business:read, business:write. GraphQL endpoint requires Bearer token.
Pricing
Wave's core product is permanently free with no limits. API access is included. Payments and payroll are paid add-ons. Very compelling for cost-sensitive use cases.
Agent Metadata
Known Gotchas
- ⚠ GraphQL API means agents must know Wave's schema — not as universally understood as REST
- ⚠ Documentation is sparse and often outdated — expect trial and error
- ⚠ API development has slowed since H&R Block acquisition — new features are rare
- ⚠ Rate limits are undocumented — agents may get throttled without clear error codes
- ⚠ OAuth2 still required despite being a simple free product
- ⚠ Business ID is required in almost all mutations — easy to miss in multi-business setups
Alternatives
Full Evaluation Report
Comprehensive deep-dive: security analysis, reliability audit, agent experience review, cost modeling, competitive positioning, and improvement roadmap for Wave Accounting API.
AI-powered analysis · PDF + markdown · Delivered within 30 minutes
Package Brief
Quick verdict, integration guide, cost projections, gotchas with workarounds, and alternatives comparison.
Delivered within 10 minutes
Score Monitoring
Get alerted when this package's AF, security, or reliability scores change significantly. Stay ahead of regressions.
Continuous monitoring
Scores are editorial opinions as of 2026-03-07.