Gatebird
You built the API. Monetize it without AWS, CloudFormation, or a DevOps hire.
Gatebird gives small SaaS teams a developer portal, API key issuance, and usage-based billing without touching IAM or Lambda.
Start charging for your API today
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Selling access to an API you built should take an afternoon, not a sprint. The tools that exist for API monetization for indie developers were built for companies with platform teams, SREs, and $10,000/month infrastructure budgets. AWS API Gateway works, but only after you have navigated IAM roles, Lambda authorizers, CloudFormation stacks, and usage plan configurations across six different console screens. Apigee starts at $500/month before you have a single paying customer. Neither tool assumes you are also the developer, the support person, and the billing department.
Most small SaaS teams with a working API end up cobbling together a Redis counter for rate limiting, a database table for API keys, a Google Doc for documentation, and a Stripe webhook handler written on a Friday afternoon. That stack breaks during customer onboarding, requires manual intervention every time a key needs rotating, and has no customer-facing usage dashboard. The time spent maintaining the glue around the API is time not spent on the API itself.
Gatebird is an AWS API Gateway alternative for startups and indie developers who want to sell API access this week, not after a month of infrastructure work.
The 40-Hour Tax on Every Developer Who Tries to Sell API Access
When a solo developer or small SaaS team decides to sell API access, the actual work breakdown looks like this. API key storage and generation: two to four hours. A webhook handler that catches Stripe events and updates key status: four to eight hours. Usage metering that survives a burst of concurrent requests: another four to six hours. Rate limiting that enforces per-key caps before requests hit your server: three to five hours. A developer portal page with interactive docs that does not require a full Docusaurus build every time the spec changes: a weekend.
At $80/hour, that is a $3,200 build before the first customer pays a dollar. Then add two to three hours per month maintaining it. Indie developers have the skill to build this. The cost is the sprint it takes away from the product itself, and the ongoing maintenance hours it pulls back every month after.
Introducing Gatebird
Gatebird replaces the Redis counter, the webhook handler, the key table, and the hand-rolled docs site with one tool that connects to your existing Stripe account and serves your OpenAPI spec. You get a hosted developer portal at your subdomain, API keys that generate on signup, usage meters that feed directly into Stripe subscriptions, and rate limiting that holds at the edge. Point your customers to your Gatebird portal and charge them by the call, by the tier, or by the month.
What You Get — Starting at $49/month
API key issuance and management — Gatebird generates, rotates, and revokes API keys through a dashboard or a single API call. Keys are scoped to endpoints, rate-limited individually, and tagged to customer records.
Usage-based billing via Stripe — Gatebird meters calls in real time and pushes usage records to your Stripe subscription at the end of each billing period. You configure the meter unit and price per call; Gatebird handles the calculations and the Stripe webhook logic.
Hosted developer portal with OpenAPI sync — Your developer portal goes live the moment you paste your OpenAPI spec. Interactive docs, a customer login for API key retrieval, and a live usage counter, all at your subdomain. Updating your spec updates the docs immediately.
Per-key rate limiting at the edge — Set call-per-minute and call-per-month caps per key. Gatebird enforces them before the request reaches your server and returns a 429 with Retry-After headers. API abuse stops at the key level.
Customer usage dashboard — Each customer sees their own breakdown by endpoint and time period inside the developer portal. Fewer support emails asking how many calls they have remaining.
Sandbox keys that test against a live mock, maintained from your OpenAPI spec — Issue sandbox keys that hit a mock layer Gatebird maintains against your OpenAPI spec. Customers test their integration before going live, so you skip hosting a separate mock server.
Webhook alerts for billing and usage events — Configure webhooks on limit approaches, billing cycle completions, and key rotation events. Pipe them into Slack, your CRM, or your own backend.
Why $49/month
A single paying API customer at $20/month covers nearly half the Starter plan cost. Building this infrastructure yourself runs $3,200 in developer time before the first customer signs up, plus two to three hours of maintenance each month after that. Apigee costs $500/month minimum and requires enterprise procurement. Gatebird at $49/month means you spend the afternoon setting it up instead of the sprint, and the first revenue day arrives before the second invoice.
Who This Is For
You have a working API and at least one person asking how to pay for access to it.
You are charging customers manually or sending invoices because connecting call volume to billing felt like a separate project.
You have been putting off launching an API product because the developer portal and key management felt like a month of work you did not have.
You tried AWS API Gateway, read three pages of the usage plans documentation, and closed the tab.
You are a two-person team and "DevOps hire" is not a phrase that applies to your current situation.
The Gatebird First-Customer Guarantee
If you set up Gatebird and do not have your developer portal live and your first API key issued within one business day, contact support and we will do the setup with you over a screen share. If it still does not work, you pay nothing for that month.
In One Week, You Will Have:
- A hosted developer portal your customers can visit, with interactive docs that update when your OpenAPI spec changes
- API keys that generate automatically on customer signup, scoped to the endpoints you choose
- Usage metering connected to your Stripe account, so call volume becomes a line item on the monthly invoice
- Per-key rate limiting that stops abuse before it reaches your server
- A customer-facing usage dashboard that answers the "how many calls do I have left?" question before it becomes a support ticket
- Sandbox keys so new customers can test their integration before going live
- Time to keep building your API instead of the infrastructure around it
Frequently Asked Questions
Does Gatebird work with existing Stripe subscriptions for API key management SaaS setups?
Yes. Gatebird connects to your existing Stripe account and adds usage records to existing subscription items. If you already have customers on Stripe subscriptions, Gatebird attaches usage metering to those subscriptions without requiring you to migrate to a new billing setup.
Gatebird vs AWS API Gateway for a small SaaS team: what is the actual difference?
AWS API Gateway charges per million API calls and requires you to build and maintain the key issuance, usage dashboard, developer portal, and billing integration yourself. Gatebird handles all of those pieces and costs $49/month flat for up to 500,000 calls and 5 active keys. For a small team without a dedicated DevOps resource, the difference is whether you spend a week on infrastructure or an afternoon.
How long does Gatebird setup take?
Most teams have a developer portal live and their first API key issued within two to four hours. You need your OpenAPI spec, your Stripe account credentials, and your API's base URL. Gatebird walks through the connection steps inside the dashboard.
Can I sell API access with usage-based billing if my API has variable pricing per endpoint?
Yes. Gatebird supports per-endpoint metering, so you can charge different rates for different endpoints on the same API. You define the meter units and prices in Gatebird, and the usage records pushed to Stripe reflect the per-endpoint breakdown.
What it is: API key management, usage-based billing, and a hosted developer portal for indie developers and small SaaS teams who want to sell API access.
What you get: API key issuance and management, Stripe usage billing, hosted developer portal with OpenAPI sync, per-key rate limiting, customer usage dashboards, sandbox keys, and webhook alerts.
Price: $49/month Starter, $149/month Growth
Catch: Gatebird connects to Stripe for billing — you need an active Stripe account to use it.
Guarantee: Developer portal live and first key issued in one business day or your money back for that month.
Start charging for your API today