Stone Co website screenshot

Stone Co

Stone Co. (NASDAQ: STNE) is a Brazilian financial services and payment technology company headquartered in São Paulo. Stone provides card acquiring (POS), digital banking, business management software, and credit products to entrepreneurs and small-to-medium businesses across more than 5,500 Brazilian cities, and is the fourth-largest acquirer in Brazil following its acquisition of Elavon's Brazilian operations. Stone operates several developer-facing platforms: Connect Stone (a POS integration API for in-store payment automation and "infinite shelf" omnichannel inventory), Stone Open Banking (a RESTful banking API for account, balance, TED, PIX, and payment-link operations against Stone accounts and consented third-party accounts), the Stone SDK Android (for embedding card-present payments into Android apps and Pinpad/POS devices), AutoTEF (PIN-pad-based self-service TEF integration), the Conciliação Stone XML reconciliation feed, and Pagar.me (Stone's online/PSP gateway covering orders, charges, customers, subscriptions, split payments, recurring billing, tokenization, and 3DS). Authentication is OAuth2 / PEM-keyed JWT for Open Banking and API-key / credential-based for the other surfaces. Onboarding for Open Banking and Connect Stone partners is gated through Stone's partnerships team; Pagar.me and the Android SDK are self-service. Documentation is primarily in Portuguese and concentrated at docs.stone.com.br, docs.openbank.stone.com.br, connect-stone.stone.com.br, conciliacao.stone.com.br, and docs.pagar.me.

Stone Co is profiled on the APIs.io network. Tagged areas include Payments, Card Acquiring, POS, Point of Sale, and Open Banking.

Stone Co’s developer surface includes developer portal, documentation, signup flow, engineering blog, YouTube channel, and 17 more developer resources.

14.2/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
PaymentsCard AcquiringPOSPoint of SaleOpen BankingBankingDigital BankingPIXTEDBoletoReconciliationSubscriptionsRecurring BillingPayment GatewayPSP3DSTokenizationBrazilFintechSMBPagar.me

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 14.2/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 7.0 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.7 / 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/stone-co: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Stone Co Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Documentation 7

Reference material describing how the API behaves

Scroll for all 7

Build 4

SDKs, sample code, and the tooling you integrate with

Access & Security 1

Authentication, authorization, and security posture

Learn 1

Tutorials, courses, talks, and written guidance

Company 6

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: stone-co
name: Stone Co
description: 'Stone Co. (NASDAQ: STNE) is a Brazilian financial services and payment technology company headquartered in São
  Paulo. Stone provides card acquiring (POS), digital banking, business management software, and credit products to entrepreneurs
  and small-to-medium businesses across more than 5,500 Brazilian cities, and is the fourth-largest acquirer in Brazil following
  its acquisition of Elavon''s Brazilian operations. Stone operates several developer-facing platforms: Connect Stone (a POS
  integration API for in-store payment automation and "infinite shelf" omnichannel inventory), Stone Open Banking (a RESTful
  banking API for account, balance, TED, PIX, and payment-link operations against Stone accounts and consented third-party
  accounts), the Stone SDK Android (for embedding card-present payments into Android apps and Pinpad/POS devices), AutoTEF
  (PIN-pad-based self-service TEF integration), the Conciliação Stone XML reconciliation feed, and Pagar.me (Stone''s online/PSP
  gateway covering orders, charges, customers, subscriptions, split payments, recurring billing, tokenization, and 3DS). Authentication
  is OAuth2 / PEM-keyed JWT for Open Banking and API-key / credential-based for the other surfaces. Onboarding for Open Banking
  and Connect Stone partners is gated through Stone''s partnerships team; Pagar.me and the Android SDK are self-service. Documentation
  is primarily in Portuguese and concentrated at docs.stone.com.br, docs.openbank.stone.com.br, connect-stone.stone.com.br,
  conciliacao.stone.com.br, and docs.pagar.me.'
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
position: Provider
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/stone-co.png
tags:
- Payments
- Card Acquiring
- POS
- Point of Sale
- Open Banking
- Banking
- Digital Banking
- PIX
- TED
- Boleto
- Reconciliation
- Subscriptions
- Recurring Billing
- Payment Gateway
- PSP
- 3DS
- Tokenization
- Brazil
- Fintech
- SMB
- Pagar.me
url: https://raw.githubusercontent.com/api-evangelist/stone-co/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-05-25'
specificationVersion: '0.20'
apis: []
common:
- type: DomainSecurity
  url: security/stone-co-domain-security.yml
- type: Website
  url: https://www.stone.com.br
- type: Portal
  url: https://www.stone.com.br/devcenter/
- type: Documentation
  url: https://docs.stone.com.br
- type: Documentation
  url: https://docs.openbank.stone.com.br/
- type: Documentation
  url: https://connect-stone.stone.com.br/
- type: Documentation
  url: https://conciliacao.stone.com.br/
- type: Documentation
  url: https://sdkandroid.stone.com.br/
- type: Documentation
  url: https://autotef.readme.io/
- type: Documentation
  url: https://docs.pagar.me/docs
- type: Signup
  url: https://accounts.openbank.stone.com.br/
- type: GitHubOrganization
  url: https://github.com/stone-payments
- type: SDKs
  url: https://github.com/stone-payments/merchant-go-stone-openbank
- type: SDKs
  url: https://github.com/stone-payments/demo-sdk-android
- type: SDKs
  url: https://github.com/stone-payments/pos-mamba-sdk
- type: Blog
  url: https://blog.stone.co/
- type: InvestorRelations
  url: https://investors.stone.co/
- type: Company
  url: https://www.stone.com.br/empresa/
- type: Careers
  url: https://carreiras.stone.com.br/
- type: LinkedIn
  url: https://www.linkedin.com/company/stoneco/
- type: Twitter
  url: https://twitter.com/stonepagamentos
- type: YouTube
  url: https://www.youtube.com/@stonepagamentos
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com