Product & API Design
API contracts, specs, developer docs and AI agent interfaces your team or partners can build against.
Services in Product & API Design
Technical Spec & API Design
I write the build-ready specification for your app or API: endpoints, request and response shapes, errors, auth, webhooks, workflows and admin screens, as an OpenAPI 3.1 contract plus plain-English docs. It is for founders and teams handing work to developers. Prices start from $650 ($500 founding), and a spec takes about 1–3 weeks.
Partner API & Developer Docs
I get your API ready for outside developers: API keys, rate limits, versioning, signed webhooks, and a docs site partners can build against without emailing you. It is for SaaS teams opening their product to partners, marketplaces or customers. Prices start from $780 ($600 founding), and the work takes about 2–5 weeks.
AI Agent Interface (MCP Server)
This is a new service. I build a Model Context Protocol (MCP) server so AI assistants such as Claude or ChatGPT can use your product through your existing API. It starts read-only, and writes need the user’s confirmation. It is for SaaS teams with a working API. Prices start from $960 ($720 founding), taking about 2–5 weeks.
Not sure which one fits?
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