API design-to-implementation sprint
Define the API contract, prove one integration path, and hand over working examples in 2-4 weeks instead of starting with a broad platform program.
What gets designed first
The sprint starts with a written API boundary so business owners, internal engineers, and procurement reviewers can see what will be built.
- Endpoint list
- Auth assumptions
- Request and response examples
- Error and retry behavior
- Data ownership and logging
What gets implemented
The implementation proves one business action end to end, then leaves enough evidence for the next system owner to approve expansion.
- Working endpoint or adapter
- Integration test path
- Sample client request
- Deployment notes
- Handover checklist
Métricas clave
- 2-4 weeks: API sprint window - Short enough to prove one integration path, not broad enough to become a platform rewrite.
- OpenAPI: contract first - Endpoints, auth, request and response examples, errors, and ownership are documented early.
- 1 path: integration proof - One business action moves through the API with logging, retries, and visible failure handling.
- handover: included - The buyer receives examples, assumptions, deployment notes, and the next integration plan.
API sprint deliverables
- OpenAPI-style contract: Endpoint names, payload examples, auth assumptions, error responses, and ownership notes.
- Working API slice: A narrow endpoint, adapter, queue, webhook, or sync job that proves one business action.
- Examples and tests: Sample requests, sample responses, basic integration checks, and failure examples.
Preguntas frecuentes
- How much does a DX PoC cost?
- A focused paid PoC usually starts from the Quick DX PoC range. Final pricing depends on data access, integrations, security needs, deployment environment, and acceptance criteria.
- How long does an AI automation sprint take?
- Most focused PoCs fit into 2 weeks, MVP automation sprints into 4 weeks, and production-oriented integrations into about 6 weeks.
- What data is required?
- The fastest start includes sample files, API docs, screenshots, example tickets, user roles, current workflow notes, and one owner who can join weekly demos.
- Can we start without API access?
- Yes. The first sprint can use exports, sample datasets, mocked APIs, or manual upload flows, then move toward API integration once access is approved.
- Do you support Japanese documentation?
- Yes. Engagements can include bilingual summaries, demo notes, handover materials, and meeting support through the Japan Desk model.
- Who owns the source code?
- Source-code ownership, repository handover, licensing, and reusable components are defined in the SOW before the sprint begins.
- What do we receive after 2 weeks?
- For a narrow PoC, the usual output is a working prototype or API slice, demo notes, assumptions, risks, acceptance criteria, and a recommendation to harden, integrate, expand, or stop.
- Who owns technical decisions?
- Senior engineers stay close to scope, architecture, AI-use risk, technical tradeoffs, weekly demos, and handover quality instead of hiding decisions behind layers of project management.
- What does an API sprint deliver?
- A focused API sprint can include endpoint design, an OpenAPI-style contract, auth assumptions, sample requests and responses, integration tests, logging, and handover notes.
- How do you measure whether the sprint worked?
- Each sprint starts with one measurable proof point such as reduced manual steps, successful extraction rate, API handoff success, response time, reviewer acceptance, or pilot-user feedback.