Custom API, SDK & Decentralized Protocol Development
The interfaces other developers build on — designed to be a pleasure to use and hard to misuse.
An API is a promise to every developer who builds on it. Design it well and an ecosystem grows on top; design it carelessly and you spend years maintaining the mistakes while your users route around you. The interface is the product, even when it's invisible to end users.
I design and build APIs, SDKs, and protocols that are clean to use, hard to misuse, and stable enough to depend on — including the harder world of decentralized protocols, where the design has to be right the first time because changing it later means coordinating everyone at once.
- API design, development, and versioning strategy
- SDK and client-library development across languages
- Decentralized and peer-to-peer protocol design
- Protocol specification and reference implementation
- Developer-experience and documentation design
- Authentication, rate-limiting, and abuse resistance
- Backward compatibility and evolution strategy
- Interoperability and standards alignment
I design the interface before the implementation, from the consumer's point of view, because an API's users are its real stakeholders. Protocols are specified precisely and implemented as a clean reference, with versioning and compatibility planned so the thing can evolve without breaking its ecosystem.
Every engagement runs under a signed NDA and, where testing is involved, a Safe Harbor agreement. Legal and ethical, start to finish.
- A clean, documented API or protocol specification
- Reference implementation and SDKs for key languages
- A versioning and compatibility strategy
Can you design a decentralized protocol?+
Yes. Decentralized and peer-to-peer protocol design — specification, incentive and security considerations, and reference implementation — is a core capability.
Do you cover developer documentation too?+
Yes. Developer experience, including documentation and SDKs, is treated as part of the product, because an interface no one can figure out doesn't get adopted.
Hire me for Custom API, SDK.
Signed NDA and Safe Harbor on every engagement. Projects from five figures to nine. Discreet, relentless, done right.
I only do legal, ethical hacking — under a Safe Harbor contract and NDA.