Flex

Flex is a consumer financial technology company that lets renters pay their monthly rent in smaller installments spread across the month, instead of a single lump sum on the due date, so payments better fit each person's pay schedule and cash flow. The company pays the landlord or property manager in full on the due date and collects from the renter over the month, positioning itself as a flexible-payments layer on top of the largest recurring expense most households carry. Founded in 2019 and headquartered in New York City, Flex operates a consumer mobile app and partners with property-management platforms; it is backed by Lightspeed Venture Partners and surfaced in the 500 Global portfolio. Flex publishes no public developer API, developer portal, or discovery surface today - this profile is a network lead.

Flex is profiled on the APIs.io network. Tagged areas include Company, Fintech, Financial-Services, Payments, and Rent Payments.

🌐 Visit website 📡 Source on GitHub

1.5/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-21 · rubric v0.12.0

0 APIs

Company Fintech Financial-Services Payments Rent Payments Consumer Finance Bill Pay Real-Estate

Kin Score

Kin Score How this is scored →
scored 2026-08-21 · rubric v0.12.0

Composite quality — 1.5/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.3 / 9

Regulatory Posture 1.4 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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/flex: 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: flex
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/flex.png
name: Flex
description: Flex is a consumer financial technology company that lets renters pay their monthly rent in smaller installments
  spread across the month, instead of a single lump sum on the due date, so payments better fit each person's pay schedule
  and cash flow. The company pays the landlord or property manager in full on the due date and collects from the renter over
  the month, positioning itself as a flexible-payments layer on top of the largest recurring expense most households carry.
  Founded in 2019 and headquartered in New York City, Flex operates a consumer mobile app and partners with property-management
  platforms; it is backed by Lightspeed Venture Partners and surfaced in the 500 Global portfolio. Flex publishes no public
  developer API, developer portal, or discovery surface today - this profile is a network lead.
url: https://raw.githubusercontent.com/api-evangelist/flex/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
- lightspeed-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Fintech
- Financial-Services
- Payments
- Rent Payments
- Consumer Finance
- Bill Pay
- Real-Estate
tags_raw:
- Company
- FinTech
- Financial Services
- Payments
- Rent Payments
- Consumer Finance
- Bill Pay
- Real Estate
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/flex-domain-security.yml
- type: Website
  url: https://flexfinance.ai
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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