Startuply.vc · May 2026
Third-party analysis covering Autumn’s product, positioning, customers, and investor set.
Company research
Public company, workplace, funding, and market signals
Overview
Autumn is an open-source, Stripe-native billing layer for AI startups that handles subscriptions, usage metering, credit balances, feature entitlements, and pricing changes through a small API.
Primary product
Open-source billing infrastructure for AI startups built on top of Stripe
Founded
2025
Headquarters
London, United Kingdom (YC/jobs pages; LinkedIn also lists San Francisco)
Team size
1-10
Work style
Flexible
Industry
Software Development
Sub-industry
Billing infrastructure / developer tools / fintech infrastructure
Offices
London, United Kingdom
Singapore
Business model
Open-source software
Managed cloud SaaS
Self-hosted software
Subscription pricing
Funding
Stage
Pre-Seed
Total raised
$7.2M
Latest round
Pre-Seed · Dec 2025
Latest amount
$6.7M
People & investors
Investors
Work & culture
Builder-centric, technical, open-source, and product-obsessed; public posts emphasize fast iteration, customer obsession, and reducing billing complexity for developers.
Work style
Flexible
Compensation
Public Founding Engineer posting in London shows £80K-£120K base pay and 0.50%-1.00% equity; the role says US citizenship/visa is not required.
Product & market
Pricing
Free/self-hosted open-source core plus managed cloud tiers; public pricing shows free up to $8K MRR, then $375/month up to $50K MRR, with custom pricing above that.
Differentiators
- —Stripe-native layer rather than a replacement
- —Three-function API: attach, check, track
- —No custom webhooks in the hot path
- —Real-time entitlement checks and billing state
- —Open-source and self-hostable
- —Supports credits, rollovers, seat-based, and usage-based pricing
Technology
Stripe
React
TypeScript
Express
PostgreSQL
PlanetScale
Bun
Turbo
Docker
Resend
Customers
AI startups
YC-backed startups
Indie developers
Mintlify
Firecrawl
T3.chat
Competitors
Stripe Billing
Orb
Metronome
Lago
OpenMeter
Stigg
Maxio
Scale & contact
Estimated revenue
~$550K estimated annual revenue (public estimate); broadly in the low-six-figure ARR range
Estimated monthly visits
33.4K
Latest news
SignalBase · Dec 2025
Third-party funding writeup reporting a $6.7M round for Autumn.
Hacker News · Jun 2025
Founder intro for Autumn; explains the open-source Stripe layer, the three core functions, and why billing logic was split from the core app.
Autumn Blog · Jun 2025
Founder update on go-to-market experiments, early traction, and how customers are finding the product.
Y Combinator
Official launch page describing Autumn’s positioning, product flow, and early traction within YC.
Jobs and careers at Autumn
0 jobs at Autumn
No open positions
Check back later for new openings