Florin

Florin is a San Francisco fintech startup building an integrated financial operating system for venture-backed companies. Rather than reselling another bank's infrastructure, Florin is building the underlying money-movement rails end to end so that funds settle in real time on a single ledger the company owns. The product combines business accounts, cards, payments, and treasury management into one invite-only membership aimed at startup founders who would otherwise stitch together half a dozen separate tools to hold, move, and grow their capital. Florin was founded in 2026 by Shaurya Aggarwal (CEO), Amol Pant (CTO), and Aydin Sorensen, and is a member of Y Combinator's Summer 2026 batch. At the time of this profile Florin operates a single marketing landing page with a waitlist and publishes no public API, developer documentation, or other developer-facing surface yet; this entry captures the company's identity and awaits a public API to enrich further.

Florin is profiled on the APIs.io network. Tagged areas include Company, Fintech, Banking as a Service, Neobank, and Payments.

🌐 Visit website 📡 Source on GitHub

7.7/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

AccessApproval

0 APIs

CompanyFintechBanking as a ServiceNeobankPaymentsTreasuryCardsStartupsY Combinator

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 7.7/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/florin: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: florin
accessModel:
  pricing: unknown
  onboarding: approval
  trial: false
  try_now: false
  public: false
  label: Requires approval
  confidence: medium
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/florin.png
name: Florin
description: Florin is a San Francisco fintech startup building an integrated financial operating system for venture-backed
  companies. Rather than reselling another bank's infrastructure, Florin is building the underlying money-movement rails end
  to end so that funds settle in real time on a single ledger the company owns. The product combines business accounts, cards,
  payments, and treasury management into one invite-only membership aimed at startup founders who would otherwise stitch together
  half a dozen separate tools to hold, move, and grow their capital. Florin was founded in 2026 by Shaurya Aggarwal (CEO),
  Amol Pant (CTO), and Aydin Sorensen, and is a member of Y Combinator's Summer 2026 batch. At the time of this profile Florin
  operates a single marketing landing page with a waitlist and publishes no public API, developer documentation, or other
  developer-facing surface yet; this entry captures the company's identity and awaits a public API to enrich further.
url: https://raw.githubusercontent.com/api-evangelist/florin/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Fintech
- Banking as a Service
- Neobank
- Payments
- Treasury
- Cards
- Startups
- Y Combinator
apis: []
common:
- type: DomainSecurity
  url: security/florin-domain-security.yml
- type: Website
  url: https://florin.inc
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Florin

Kin Score

Security Posture 1

Florin Domain Security

Resources

Access & Security 1

Company 1

Source (apis.yml)