API Product

The stack for building developer-focused products. APIs, SDKs, documentation, and usage-based billing. Built by developers, for developers building for developers.

$10/mo
monthly
8
tools
4h 15m
setup time

Best For

Business Type
API Product, B2B SaaS
Technical Level
Developer
Team Size
Solo Founder, Tiny Team, Small Team
Budget
$0-50/mo, $50-200/mo, $200-500/mo
💻

Development

$10/mo

Railway

$5/moeasy

Modern PaaS that deploys anything. Perfect for APIs, workers, and databases.

Setup time: 20 minPay for usage, typically $5-20/mo for small APIs
Integrates with: postgres, stripe
Alternatives:
Render — Similar features, free tier for static sites
Fly.io — Edge deployment, better for global latency
Quick start guide →

PostgreSQL (Railway)

$5/moeasy

Production Postgres with backups. Scales with Railway pricing.

Setup time: 10 minUsage-based, typically $5-10/mo for small databases
Integrates with: railway, clerk
Alternatives:
Neon — Serverless Postgres, generous free tier
Supabase — Postgres with extras, free tier available
Quick start guide →

Clerk

Freemedium

Auth with API keys, OAuth, and dashboard for your API customers.

Setup time: 30 minFree up to 10K MAU, then $0.02/MAU
Integrates with: railway, stripe
Alternatives:
WorkOS — Enterprise SSO focus, usage-based pricing
Stytch — Flexible auth, good for B2B
Quick start guide →
💳

Payments

Free

Stripe

Freehard

Usage-based billing with Stripe Billing. Metered pricing for API calls.

Setup time: 1h 30m2.9% + $0.30 per transaction, usage meters included
Integrates with: railway, clerk
Alternatives:
Orb — Purpose-built for usage billing, adds ~1% fee
Lago — Open source, self-hosted billing
Quick start guide →
⚙️

Operations

Free

Resend

Freeeasy

Email API built for developers. Great for transactional emails and developer onboarding.

Setup time: 15 minFree tier: 3,000 emails/month
Integrates with: railway
Alternatives:
Postmark — Better deliverability, $15/mo minimum
Quick start guide →

ReadMe

Freemedium

Beautiful API documentation with try-it-now, changelogs, and metrics.

Setup time: 45 minFree for public docs, paid for private and analytics
Alternatives:
Mintlify — MDX-based, great design, growing fast
GitBook — General docs, free for open source
Quick start guide →
📈

Growth

Free

PostHog

Freemedium

Product analytics with feature flags. Track API usage, run experiments.

Setup time: 30 minGenerous free tier: 1M events/mo, 5K recordings
Integrates with: railway
Alternatives:
Mixpanel — Better analytics UI, 20M events free
Amplitude — Enterprise features, free tier available
Quick start guide →
🤝

Collaboration

Free

Linear

Freeeasy

Fast issue tracking for dev teams. Keyboard-first, GitHub integration.

Setup time: 15 minFree for up to 250 issues, then $8/mo per user
Integrates with: github
Alternatives:
GitHub Issues — Free, already in your workflow
Quick start guide →

Want This Stack?

Get personalized setup guides and integration help.

Monthly Cost Breakdown

Development$10/mo
Railway$5/mo
PostgreSQL (Railway)$5/mo
ClerkFree
PaymentsFree
StripeFree
OperationsFree
ResendFree
ReadMeFree
GrowthFree
PostHogFree
CollaborationFree
LinearFree
Total$10/mo

Estimated monthly cost based on typical usage

Pro tip: Many tools have generous free tiers. Your actual cost may be lower when starting out.

Setup Guide

Total: ~4h 15m
1
Railway~20 min

Set up Railway

Start here
2
PostgreSQL (Railway)~10 min

Set up PostgreSQL (Railway)

3
Clerk~30 min

Set up Clerk

4
Stripe~1h 30m

Set up Stripe

Requires: railway, clerk

5
Resend~15 min

Set up Resend

Requires: railway

6
ReadMe~45 min

Set up ReadMe

7
PostHog~30 min

Set up PostHog

Requires: railway

8
Linear~15 min

Set up Linear

Steps: 8
Estimated time: 4h 15m

Tags

apideveloper-toolsdevtoolsinfrastructureusage-billing

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