WAITLIST OPEN

The Financial Infrastructure for the API Economy

Virtual cards to control, monitor, and optimize your startup's API spending. One card per service. Hard limits. Instant alerts.

SpendexAI Dashboard Live

OpenAI

Limit $1,200

74% used

Google Gemini

Limit $1,500

64% used

Anthropic

Limit $900

Alert at 85%

AWS

Limit $4,500

52% used

Startups are bleeding money on APIs

$700B+

cloud spending

35%

wasted

0 control

across API subscriptions

One credit card for all your APIs. No visibility. No limits. No control. A dev runs an infinite loop on Friday — Monday the bill is $10K.

Centralized control, built for CTOs

Connect billing APIs once, centralize all spend, and issue virtual cards by team or project for clean accountability.

Unified billing view

Aggregate every vendor invoice into a single ledger.

Cards by team/project

Separate budgets for Core, Growth, and R&D.

Alerts before overruns

Notify, block, or approve in real time.

Most active spend: Core API Team Highest volatility: Growth Experiments R&D trend: +18% MoM

We're building the financial infrastructure for AI agents

Today, humans use APIs. Tomorrow, billions of AI agents will spend money autonomously. We're building the rails.

2025

Virtual cards per API

Control what your team spends.

2026

AI cost optimization

"Switch to Haiku, save 70%"

2027

Agent wallets

Every AI agent gets its own spending account.

2028+

Full financial stack

Payment rails for the non-human economy.

Visa built the rails for human payments. We're building them for the age of AI.

Demo Preview

See how SpendexAI blocks overages, routes spend to the right card, and keeps your AI stack inside budget.

Live spend controls Per-vendor limits Instant CFO alerts

The timing is now

AI API usage is exploding

Every startup now uses 5-10 paid APIs, spending grows 10x YoY.

Agents are starting to spend money

Devin, MultiOn, Claude Computer Use. No financial infrastructure exists for them.

Existing tools don't cut it

Brex gives you generic cards. FinOps tools only monitor. Nobody controls API spending intelligently.

Built by fintech insiders

Founded by a fintech veteran from Raisin and Stances with deep expertise in neobanking and financial services.

Raisin — Europe's largest savings platform Stances — Financial services Academic thesis on neobanks

Be early to the future of API finance

We're launching in 2025. Get early access and be the first to take control of your API costs.