Enterprise customers want API access. Your product needs a real REST API before the deal closes.
A documented REST API with authentication, rate limiting, and webhook events turns your product from a destination into a platform. Enterprise customers can automate provisioning. Partners can build integrations. Users can build workflows. We add the API layer your product needs. Fixed scope, fixed price.
Enterprise prospects and technical customers asking for API access that the product doesn't currently expose
A SaaS product without an API is a walled garden. Users can only interact with the product through the UI. Data can only get in through the UI import tools. Data can only get out through the UI export tools. Enterprise IT teams can't automate user provisioning. Partners can't build integrations. Power users can't build workflows that connect the product to their other tools.
The moment a product gains significant enterprise traction, the API request follows. Enterprise procurement teams include "Does this have an API?" as a standard due diligence question. The answer "not yet" doesn't close deals.
The things a REST API enables: SCIM provisioning (enterprise identity management systems like Okta can automatically provision and deprovision users); CRM integrations (HubSpot or Salesforce can sync data from the product without manual export); workflow automations (Zapier and Make connectors, which require a publicly documented API); and custom enterprise integrations (the enterprise customer's IT team builds their own integration with the product's specific data model).
Webhooks are the complement to the REST API: rather than enterprise customers polling the API for changes, webhooks push events to the customer's endpoint when something happens — a new user is created, a record is updated, a subscription changes. The combination of REST API + webhooks covers 95% of enterprise integration requirements.
A documented REST API with API key management, scoped permissions, rate limiting, and webhook events — enabling the integrations your customers are asking for
API key management
API key generation and revocation for each account. Scoped API keys (read-only, resource-specific write access). Key labels and last-used tracking. Secure key display (shown once on creation, then hashed).
REST API endpoints
Resource-based endpoint design following REST conventions. Standard HTTP methods (GET, POST, PUT/PATCH, DELETE). Consistent pagination (cursor-based for large datasets). Standard error response format with error codes.
Rate limiting
Per-key rate limits enforced at the API gateway layer. Standard rate limit response headers (X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset). Configurable limits by plan tier.
Webhook system
Event catalog with all significant product events. Webhook endpoint registration per account. Signed webhook payloads (HMAC-SHA256) for delivery verification. Delivery retry with exponential backoff. Webhook delivery log in the admin panel.
API documentation
OpenAPI 3.0 specification. Interactive documentation (Swagger UI or similar). Authentication examples in curl, JavaScript, and Python. Changelog for API version updates.
One honest number to start.
Fixed-scope, fixed-price. The number below is the starting point — final scope is built from your brief.
A documented REST API with API key management, scoped permissions, rate limiting, and webhook events — enabling the integrations your customers are asking for
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
An API is a defined scope: endpoints, authentication, rate limiting, webhooks, documentation. Fixed price.
Related engagements.
Questions, answered.
Yes — versioning in the URL path (/v1/) from the first release gives you a clean path to introduce breaking changes in /v2/ without disrupting existing integrations. Not versioning from the start creates technical debt at the first breaking change.
For most SaaS products, the REST API can be implemented as additional routes on the existing Next.js application — no separate API gateway required at early scale. API gateway infrastructure (Kong, AWS API Gateway) makes sense at very high request volumes.
REST API with webhook system and documentation: from $18k. Full enterprise API tier with SCIM provisioning: from $28k. Fixed-price.
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.