Sonnet Code
Platform · LLM & AI

Work with senior Anthropic API engineers.

Anthropic API engineers who ship production systems, not pitch decks.

We build production Anthropic API systems for US product teams every week. Senior engineers, aligned with your timezone, embedded in your process. We write Anthropic API the way your team will still want to read it next year.

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Anthropic API in production
Why Sonnet Code for Anthropic API

The bar we hold ourselves to.

Senior only

Every engineer we put on your work has 5+ years shipping production code. No rotations out, no bait-and-switch.

Measured, not promised

Performance budgets, observability, and evaluation metrics are part of the build — not things we add after you ask.

Honest scoping

We'll tell you when this is the wrong tool for the job. The fastest way to lose a client is to ship the wrong thing.

What we build with Anthropic API

Anthropic API work, shipped.

New Anthropic API systems

Greenfield Anthropic API services architected for the three-year horizon — proper boundaries, tests, and documentation from day one.

Anthropic API modernization

Incremental migration from legacy systems, using the strangler-fig pattern so you never bet the farm on a single cutover.

Anthropic API scaling

Taking an existing Anthropic API codebase from working-for-10k-users to working-for-10M-users, without a full rewrite.

Anthropic API team augmentation

Senior Anthropic API engineers embedded in your team, shipping alongside your engineers with the same standards and PR process.

Ready to get started with Anthropic API? Fifteen minutes is all it takes.