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API Development
APIs and integrations that connect your systems — designed for developers, built to scale.
What This Service Delivers
Every system is only as good as the APIs that connect it. We design and build clean, versioned, well-documented APIs and integrations — whether you are opening your platform to developers or connecting your internal systems.
View this service as...
Investment
$10,000 – $60,000
Timeline
4–16 weeks
Expected outcome
REST and GraphQL APIs designed for developer experience.
Key risks to plan for
Third-party API usage fees · Ongoing support (add Support) · Large-scale developer portal marketing
API-first design
REST and GraphQL APIs designed for developer experience.
Great docs
Interactive documentation, examples, and SDKs.
Secure by default
Auth, rate limiting, and scoped permissions built in.
Reliable delivery
Webhooks with retry, failure alerting, and delivery logs.
Investment & Timeline
Starting from
$10,000
Typical project range
$10,000 – $60,000
Typical timeline
4–16 weeks
What's included
- ✓ API design and development
- ✓ Auth and rate limiting
- ✓ Documentation and SDKs
- ✓ Deployment
What's not included
- ✕ Third-party API usage fees
- ✕ Ongoing support (add Support)
- ✕ Large-scale developer portal marketing
Factors affecting price
Endpoint count and complexityAuthentication requirementsWebhook and analytics scope
What You Get
API design (REST/GraphQL) with versioning
Authentication and rate limiting
SDKs and interactive docs
Webhook system
Usage analytics
Sandbox environment
Technology
Node.jsGoGraphQLOpenAPIPostgreSQLRedisKong
Industries
Related Services
Frequently Asked Questions
Do you generate SDKs automatically?
Yes — OpenAPI-spec-driven generation, then custom ergonomics per language.
REST or GraphQL?
Both. REST for broad compatibility, GraphQL when clients need flexible queries. We recommend per use case.
How do you keep APIs backward-compatible?
Explicit versioning, additive changes by default, and deprecation policies.
Your Service Lifecycle
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Ready to get started with api development?
$10,000 – $60,000 typical range · 4–16 weeks typical timeline. Book a call and we'll scope the highest-value version of this work.