Find your exact rate
Typical project work, moderate complexity.
Factor in AI tool subscriptions
Your Rate
Day Rate
$450
Project Est.
$2,200
Retainer
$8,350/mo
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Community Data
What do you actually charge?
Anonymous. Helps improve market benchmarks.
How Much Should You Charge for API Development?
Freelance API developers typically charge $85–$165/hr, with REST API projects ranging from $3,000 for simple endpoints to $25,000+ for complex integrations with auth, rate limiting, and documentation. GraphQL and microservices work commands a premium.
Floor
$85
per hour
Typical
$130
per hour
Premium
$165
per hour
Find your exact rate
Typical project work, moderate complexity.
Factor in AI tool subscriptions
Your Rate
Day Rate
$450
Project Est.
$2,200
Retainer
$8,350/mo
Was this helpful?
Community Data
What do you actually charge?
Anonymous. Helps improve market benchmarks.
What changes the price
- API type — REST, GraphQL, gRPC, or WebSocket
- Authentication and security requirements (OAuth2, JWT, API keys)
- Number of endpoints and data models involved
- Third-party integrations (Stripe, Twilio, Salesforce, etc.)
- Need for documentation (OpenAPI/Swagger specs)
- Performance and scalability requirements
- Whether testing and CI/CD setup is in scope
Real quote breakdowns
Simple CRUD REST API
A startup needs a Node.js REST API with five resource endpoints, JWT authentication, and basic input validation for a mobile app.
Breakdown
40 hours × $110/hr. Covers endpoint design, auth middleware, error handling, and Postman collection handoff.
Payment processing integration
An e-commerce platform needs Stripe integration with webhook handling, subscription management, and refund flows.
Breakdown
60 hours × $150/hr. Covers Stripe SDK integration, idempotency handling, webhook verification, and test coverage.
GraphQL API with microservices
A SaaS product needs a federated GraphQL layer stitching together three internal services with real-time subscriptions.
Breakdown
140 hours × $165/hr + $900 for schema documentation. Covers federation setup, resolver optimization, and load testing.
Frequently asked questions
How do I price an API project with uncertain scope?
Break the project into a paid discovery phase (schema design, endpoint mapping, third-party audit) billed at your hourly rate, then provide a fixed quote for the build. This protects you from scope creep and gives the client a clearer cost picture.
Should I charge extra for API documentation?
Yes. Writing OpenAPI/Swagger specs, README docs, or Postman collections takes real time and adds lasting value. Add a documentation line item — typically $500–$1,500 depending on API size — or include it as a distinct deliverable in your contract.
What rate is reasonable for API maintenance retainers?
Monthly API maintenance retainers typically range from $800–$2,500/month for a small to medium API, covering bug fixes, dependency updates, and minor feature additions. Scope the monthly hours explicitly — usually 8–20 hrs/month.
Is GraphQL development billed differently than REST?
GraphQL work often takes more upfront design time (schema, resolvers, N+1 problem mitigation) but can reduce future change costs. Most developers charge the same hourly rate but note that GraphQL projects tend to have longer initial phases, resulting in higher overall project cost.