Build an API product — turn your capability into a service other developers integrate.
An API product is a software capability exposed over HTTP. Your proprietary algorithm, your data asset, your processing capability — available to other developers via API. Documentation, keys, rate limiting, and billing are the product.
Founder or company with a proprietary capability (data, algorithm, processing) who wants to monetize it as an API product that other developers integrate into their products
An API product is more than an API. It's the infrastructure around the API that makes it a product:
Authentication: API keys with scoped permissions. OAuth flows for user-level auth. Key rotation without service interruption.
Rate limiting: Per-key rate limits that prevent abuse and enforce fair use. Graceful 429 responses with retry-after headers.
Usage tracking: How many requests per key per day? Which endpoints are used most? Usage data drives billing and product decisions.
Billing: Usage-based billing via Stripe Metered Billing. Free tier with defined limits. Paid tiers with higher limits and SLAs.
Documentation: The API is as good as its documentation. Developers don't use undocumented APIs. OpenAPI spec with auto-generated reference docs.
Developer experience: Clear error messages. Consistent response format. Predictable versioning. Rate limit headers in every response.
API product deployed — REST or GraphQL API, developer documentation, API key management, rate limiting, and usage-based billing
API layer
REST or GraphQL with OpenAPI spec
Auth system
API keys, OAuth, key management portal
Rate limiting
per-key limits with graceful degradation
Usage metering
event tracking for billing and analytics
Developer portal
documentation, API key management, usage dashboard
Billing integration
Stripe Metered Billing with usage reporting
One honest number to start.
Fixed-scope, fixed-price. The number below is the starting point — final scope is built from your brief.
API product deployed — REST or GraphQL API, developer documentation, API key management, rate limiting, and usage-based billing
Three steps, every time.
The same repeatable engagement on every project. No surprises, no mystery, no billable ambiguity.
Brief & discovery.
We send you questions, then get on a call. Output: a written scope with every step, feature, and integration listed.
Build & ship.
Fixed schedule, weekly reviews. No scope creep unless you change the scope — and if you do, we reprice it transparently.
Warranty & retainer.
30-day warranty on every launch. Most clients stay on a monthly retainer for ongoing features and maintenance.
Why Fixed-Price Matters Here
API products have defined endpoints and infrastructure patterns. Fixed-price from the spec.
Related engagements.
Questions, answered.
REST for most API products — widely understood, easy to document, easy to test with curl. GraphQL when clients need flexible query shapes or you have a complex graph of related data types.
URL-prefix versioning (/v1/, /v2/) is the standard. No-break versioning policy: v1 endpoints are maintained indefinitely when v2 is released. Breaking changes require a new version.
Tell Ryel about your project.
Describe what you’re building and what outcome you need. You’ll have a written, fixed-price scope within the week.