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API Development

APIs that developers love to use

Well-designed APIs that serve as the foundation for modern software. I build APIs that are intuitive, performant, and built to evolve gracefully.

Prefer reading first? See real engagements or read recent insights.

What's Included

  • RESTful API design and implementation
  • GraphQL schema design
  • API versioning strategy
  • Rate limiting and throttling
  • API documentation and SDKs
  • Webhook and event system design

Ideal For

Who this engagement fits best

  • Platforms launching a public API
  • B2B products where partners integrate via API
  • Teams replacing chatty internal calls with proper contracts
  • Companies launching SDKs in multiple languages

Not quite the right fit? Browse other services or reach out and we'll figure it out together.

Outcomes

Results clients see

<100ms p95

Latency target for most public APIs after tuning

100% typed

End-to-end type safety with OpenAPI or tRPC

3 SDKs

Typical SDK coverage at launch (TS, Python, Go)

1-page quickstart

Time-to-first-call under 5 minutes for new devs

See similar results in the case study archive.

Process

How we work together

A structured approach to api development that delivers results.

1

Design

Define API contract and data models

2

Implement

Build API with comprehensive testing

3

Document

Create developer documentation and examples

4

Launch

Deploy with monitoring and rate limiting

Curious what each phase looks like in detail? Read the full process page.

Deliverables

What you get

Tangible outcomes from every engagement, not just slides.

Every deliverable is owned by you on day one—your repo, your cloud, your accounts. Want to see real artifacts from past engagements? Visit the work archive.

Production API
API documentation
SDK libraries
Integration guides

Pricing

From $15,000

From design partner APIs to public developer platforms.

Engagement model: Fixed-scope project

API Design
$8,000
1 week
  • OpenAPI spec
  • Contract review
  • Versioning plan
  • Auth model
Start with API Design
Most popular
API Build
from $32,000
5-8 weeks
  • Production API
  • Auth + rate limiting
  • Docs site
  • TS + Python SDKs
Start with API Build
Developer Platform
from $75,000
10-14 weeks
  • Public API + portal
  • Self-serve onboarding
  • Webhook system
  • Multi-language SDKs
Start with Developer Platform

Need a custom scope? See full pricing details or request a custom quote.

Client Voices

What teams say

Anonymized quotes from recent engagements.

Our partners stopped sending us angry Slack messages. The API just works the way they expect.
Anonymized client
Product Lead, Fintech API
He shipped the SDK and the docs in the same PR. We had design partners integrating in days.
Anonymized client
CTO, Devtool Startup

Technologies

Tools and platforms

The core technologies I use for api development projects.

Node.jsGraphQLOpenAPIHonotRPCPostman

FAQs

Frequently asked questions

Answers to the most common questions about api development engagements.

REST or GraphQL?

Public APIs almost always REST + OpenAPI. Internal APIs increasingly tRPC. GraphQL when you have many distinct clients with overlapping needs.

Do you generate SDKs or hand-write them?

Generated from OpenAPI for breadth, hand-tuned for the top 1-2 languages. Best of both.

How do you handle versioning?

Additive-only by default. When breaking changes are unavoidable, dated versions (Stripe-style) with clear deprecation timelines.

Have a question that isn't here? Ask directly—I reply personally to every message.

Industries

Where this work lands

Sectors where this service has shipped real outcomes.

Reading

Related insights

Posts on topics adjacent to this engagement.

Or browse all insights.

Ready to get started?

Let's discuss how api development can help your business. Most projects kick off within two weeks of the first call.

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