APIPay for SaaS

Your SaaS margins, finally protected.

Third-party APIs quietly become one of the biggest lines on a SaaS P&L. APIPay covers those recurring costs, turns your own endpoints into paid products and gives every feature one AI endpoint to build on.

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Estimates and recommendations, never guarantees · You stay in control

Built for SaaS teams

✦ Public API in days✦ Usage-based pricing✦ Covered API costs✦ Customer keys✦ Metered invoicing✦ Built-in AI features✦ Public API in days✦ Usage-based pricing✦ Covered API costs✦ Customer keys✦ Metered invoicing✦ Built-in AI features

100%

Recurring API costs covered · iAPI

$5,000

One-time per API · iAPI

$2,000

Lifetime custom API · Infinite API

Endpoint for every AI model

The challenge

What's holding SaaS back.

The problems we hear most — and exactly what APIPay is built to fix.

API costs grow with every customer

Maps, email, enrichment and AI calls scale linearly with usage, so your best months are also your most expensive.

A public API takes quarters

Keys, plans, rate limits, metering and invoicing are a full product on their own — and they compete with your roadmap.

Usage pricing without usage data

Sales wants consumption-based tiers, but nobody can say exactly how much each account actually used.

How APIPay fits

The APIPay stack, tuned for SaaS.

Three products for the APIs you pay for, the APIs you need and the APIs you sell — plus AI that works across all of them.

iAPI

$5,000 one-time per API

100% of recurring API costs covered

Connect the third-party APIs embedded in your product — geocoding, messaging, data enrichment — so their recurring cost is covered with a one-time setup per API.

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Infinite API

$2,000 one-time

Custom, unlimited, lifetime

Replace a per-call dependency inside your product with a custom, unlimited lifetime API delivered as plug-in code your engineers drop in.

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API-Pay

Gateway + monetization

Keys, plans, limits, metering, invoices

Put your existing endpoints behind our gateway and instantly gain customer keys, plans, per-minute rate limits, metering, analytics and invoices.

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AI Studio

Ship AI features — summaries, copilots, smart search — through one OpenAI-compatible endpoint and switch models as quality and price evolve.

Agent Swarms

Run a swarm on expansion revenue: pricing experiments, new segments and partner channels ranked with clear next steps.

Use cases

Where SaaS teams start.

Four high-impact places to put APIPay to work first.

Launch a developer API

Expose the core of your product to customers and partners with keys, docs-ready endpoints and plans on day one.

Consumption-based tiers

Bill on real metered usage with included requests and overage pricing defined by you.

Margin protection

Move high-volume third-party APIs onto iAPI so growth doesn't automatically mean higher vendor bills.

AI features in a sprint

Add copilots and automation through AI Studio without negotiating a new contract for every model.

How it works

From sign-in to covered costs in four moves.

No migrations and no rebuilds — APIPay works alongside the systems you already run.

01
Sign in
Create your account and open your command center. Everything starts from the Overview.
02
Pick your path
Start iAPI onboarding for an API you pay for, scope an Infinite API, or connect your own endpoint to API-Pay.
03
Issue keys
Generate keys for your team, customers or partners, with plans and rate limits that fit your business.
04
Build and grow
Call every AI model from one endpoint, switch on Agent Swarms and watch usage in real time.

Who it's for

Made for every seat in SaaS.

Founders & CEOs

Grow revenue without growing your third-party API bill at the same pace.

Plannable one-time costs
New API revenue line
Investor-ready usage metrics

Engineering leads

Ship a monetized public API without building billing infrastructure.

Gateway in front of existing services
One-header integration
Rate limits enforced for you

Product & pricing

Design usage-based plans backed by real metered data.

Included usage + overage
Per-plan rate limits
Live analytics

FAQ

SaaS, answered.

Still curious? Our team answers every message personally.

Do we have to migrate our backend to use API-Pay?

No. API-Pay sits in front of the services you already run. Your customers call the gateway with their key, and we forward requests, enforce limits and meter usage.

Which of our vendor APIs can iAPI cover?

Most paid third-party APIs your product calls on a recurring basis are candidates. Each API is a one-time $5,000 setup, after which 100% of that API's recurring cost is covered. We confirm fit during onboarding.

Can we use AI Studio inside our own product?

Yes. AI Studio exposes a single OpenAI-compatible chat completions endpoint with one key, so you can add AI features without managing multiple model providers.

Ready to put APIPay to work in SaaS?

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