Lemon Cash

Lemon Cash is a Latin American digital-money app operated in Argentina by Bay Treasure Caramel S.A., registered as a virtual asset service provider (PSAV N° 162) with the Comisión Nacional de Valores. Founded in 2019 by Marcelo Cavazzoli and Borja Martel Seward, Lemon combines a fiat wallet in pesos and dollars, crypto trading and custody, a Visa debit card with crypto cashback, stock investing and bill payment across Argentina, Peru, Brazil, Colombia, Chile, El Salvador and the wider region. Its public developer surface is the Lemon Mini App SDK: a TypeScript library that lets third-party web apps run inside the Lemon Cash mobile app, sign users in with Sign-In with Ethereum, request user claims, move crypto between the Lemon wallet and a Mini App wallet, transfer fiat to bank accounts, and call smart contracts on eleven mainnet and eleven testnet chains.

Lemon Cash is listed with 1 API on the APIs.io network. Tagged areas include Company, Cryptocurrency, Digital Wallet, Fintech, and Payments.

Lemon Cash’s developer surface includes documentation, API reference, getting-started guide, signup flow, support, engineering blog, authentication, and 33 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

41.3/100 developing ▬ flat Agent 6/100 agent aware Front door AI 1/6 silent Heartbeat 29/100 slowing saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API 4 Agent Skills

Company Cryptocurrency Digital Wallet Fintech Payments Banking Blockchain Web3 Argentina Latin America Mini Apps SDK

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 41.3/100 · developing

Contract Quality 0.0 / 21

Developer Ergonomics 12.4 / 17

Access Clarity 7.2 / 17

Operational Transparency 5.8 / 11

Contract Governance 1.9 / 10

Discoverability 6.2 / 9

Regulatory Posture 4.8 / 15

Agent readiness — 6/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

10 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 42.1 — up to +11.6 composite points
Contract Governance scores 18.2 — up to +9.8 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/lemon-cash/apis.yml: open an issue on github.com/api-evangelist/lemon-cash to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Argentine Fintech Registers (BCRA PSP + entities, CNV agents + PSAV, Cámara Fintech)	distribution	9.6 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Lemon Cash Mini App SDK

The Lemon Mini App SDK is the public developer contract for building a Mini App that runs inside the Lemon Cash mobile app. It is a TypeScript library, not an HTTP API: calls ar...

Agent Skills 4

Packaged agent skills for driving this provider's APIs from an AI assistant.

Authenticate a Lemon Mini App user

AGENT SKILL

Call a smart contract from a Lemon Mini App

AGENT SKILL

Fund and settle a Lemon Mini App wallet

AGENT SKILL

Transfer fiat to a bank account from a Lemon Mini App

AGENT SKILL

Security Posture 3

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

Lemon Cash Authentication

siwe · 1 scheme

SECURITY

Lemon Cash Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Lemon Cash Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Conventions

DataModel

Lifecycle

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

SourceCode

Packages

SDKs

Access & Security 6

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Compliance

Security

SecurityTxt

Authentication

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 7

Status, limits, changes, and where to get help

IssueTracker

Support

HelpCenter

Roadmap

StatusPage

Deprecation

ChangeLog

Scroll for all 7

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 4

The organization behind the API

Website

Website

Blog

Blog

Careers

Careers

LinkedIn

Other 2

Properties that don't map to a standard resource type

MediaKit

MediaKit

Source (apis.yml)

aid: lemon-cash
name: Lemon Cash
description: 'Lemon Cash is a Latin American digital-money app operated in Argentina by Bay Treasure Caramel S.A., registered
  as a virtual asset service provider (PSAV N° 162) with the Comisión Nacional de Valores. Founded in 2019 by Marcelo Cavazzoli
  and Borja Martel Seward, Lemon combines a fiat wallet in pesos and dollars, crypto trading and custody, a Visa debit card
  with crypto cashback, stock investing and bill payment across Argentina, Peru, Brazil, Colombia, Chile, El Salvador and
  the wider region. Its public developer surface is the Lemon Mini App SDK: a TypeScript library that lets third-party web
  apps run inside the Lemon Cash mobile app, sign users in with Sign-In with Ethereum, request user claims, move crypto between
  the Lemon wallet and a Mini App wallet, transfer fiat to bank accounts, and call smart contracts on eleven mainnet and eleven
  testnet chains.'
deliveryModel:
  model: saas
  license_evidence:
    not_product:
    - lemonatio/mini-app-sdk
  open_source: unknown
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: low
  source:
  - pricing
  - repository-not-product
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://framerusercontent.com/images/oY7vruOorqAA7MnBcgpFi2BpIg.png
url: https://raw.githubusercontent.com/api-evangelist/lemon-cash/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-harvest-source-url: https://forgeglobal.com/lemon-cash_stock/
x-legal-entity: Bay Treasure Caramel S.A. (CUIT 30-71753495-2)
specificationVersion: '0.23'
created: '2026-08-04'
modified: '2026-08-04'
x-enrichment:
  date: '2026-08-04'
  status: enriched
  artifacts_added: 19
  pass: local-v1
tags:
- Company
- Cryptocurrency
- Digital Wallet
- Fintech
- Payments
- Banking
- Blockchain
- Web3
- Argentina
- Latin America
- Mini Apps
- SDK
apis:
- aid: lemon-cash:lemon-cash-mini-app-sdk
  name: Lemon Cash Mini App SDK
  description: 'The Lemon Mini App SDK is the public developer contract for building a Mini App that runs inside the Lemon
    Cash mobile app. It is a TypeScript library, not an HTTP API: calls are passed to the native app over the React Native
    WebView postMessage bridge and every action is confirmed by the user in-app. The surface is six functions — authenticate
    (Sign-In with Ethereum, EIP-4361, with optional user claims), deposit and withdraw (move tokens between the Lemon wallet
    and the Mini App wallet), transferMoney (ARS and PEN payouts to whitelisted bank destinations), callSmartContract (single
    or batched contract calls with optional Permit2 approvals) and isLemonWebView (environment detection).'
  humanURL: https://lemoncash.mintlify.app/
  baseURL: https://www.lemon.me/app/mini-apps/
  x-baseURL-note: Not an HTTP API base. This is the documented universal-link base for the Mini App surface (detail/:mini-app-id
    and webview/:mini-app-id); the SDK itself is transported over the in-app WebView bridge, not over HTTP.
  tags:
  - SDK
  - Mini Apps
  - Web3
  - Wallets
  - Payments
  - Authentication
  tags_raw:
  - SDK
  - Mini Apps
  - Web3
  - Wallet
  - Payments
  - Authentication
  properties:
  - type: Documentation
    url: https://lemoncash.mintlify.app/
  - type: APIReference
    url: https://lemoncash.mintlify.app/functions/authenticate
  - type: GettingStarted
    url: https://lemoncash.mintlify.app/quickstart/quickstart
  - type: DeveloperPortal
    url: https://lemon.me/build
  - type: SourceCode
    url: https://github.com/lemonatio/mini-app-sdk
  - type: SignUp
    url: https://tally.so/r/wkMeL1
  - type: Roadmap
    url: https://lemonminiapps.featurebase.app/en/roadmap
  - type: LLMsTxt
    url: llms/lemon-cash-llms.txt
  - type: Packages
    url: packages/lemon-cash-packages.yml
  - type: SDKs
    url: packages/lemon-cash-packages.yml
  - type: Authentication
    url: authentication/lemon-cash-authentication.yml
  - type: ErrorCatalog
    url: errors/lemon-cash-problem-types.yml
  - type: Conventions
    url: conventions/lemon-cash-conventions.yml
  - type: DataModel
    url: data-model/lemon-cash-data-model.yml
  - type: Sandbox
    url: sandbox/lemon-cash-sandbox.yml
  - type: ChangeLog
    url: changelog/lemon-cash-changelog.yml
  - type: Lifecycle
    url: lifecycle/lemon-cash-lifecycle.yml
  - type: AgentSkill
    url: skills/_index.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: IssueTracker
  url: https://github.com/lemonatio/mini-app-sdk/issues
- type: VulnerabilityDisclosure
  url: security/lemon-cash-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/lemon-cash-domain-security.yml
- type: Website
  url: https://lemon.me/
- type: DeveloperPortal
  url: https://lemon.me/build
- type: Documentation
  url: https://lemoncash.mintlify.app/
- type: APIReference
  url: https://lemoncash.mintlify.app/functions/authenticate
- type: GettingStarted
  url: https://lemoncash.mintlify.app/quickstart/quickstart
- type: SignUp
  url: https://tally.so/r/wkMeL1
- type: Support
  url: https://help.lemon.me/es/
- type: HelpCenter
  url: https://wiki.lemon.me/
- type: Blog
  url: https://lemon.me/blog
- type: GitHubOrganization
  url: https://github.com/lemonatio
- type: SourceCode
  url: https://github.com/lemonatio/mini-app-sdk
- type: Roadmap
  url: https://lemonminiapps.featurebase.app/en/roadmap
- type: StatusPage
  url: https://status.lemon.me/
- type: Deprecation
  url: lifecycle/lemon-cash-lifecycle.yml
- type: TermsOfService
  url: https://lemon.me/terms
- type: PrivacyPolicy
  url: https://lemon.me/arg-terms/declaraci%C3%B3n-de-privacidad
- type: Compliance
  url: conformance/lemon-cash-conformance.yml
- type: Conformance
  url: conformance/lemon-cash-conformance.yml
- type: Security
  url: https://lemon.me/.well-known/security.txt
- type: SecurityTxt
  url: well-known/lemon-cash-security.txt
- type: WellKnown
  url: well-known/lemon-cash-well-known.yml
- type: Packages
  url: packages/lemon-cash-packages.yml
- type: SDKs
  url: packages/lemon-cash-packages.yml
- type: LLMsTxt
  url: llms/lemon-cash-llms.txt
- type: Authentication
  url: authentication/lemon-cash-authentication.yml
- type: ErrorCatalog
  url: errors/lemon-cash-problem-types.yml
- type: Conventions
  url: conventions/lemon-cash-conventions.yml
- type: DataModel
  url: data-model/lemon-cash-data-model.yml
- type: Sandbox
  url: sandbox/lemon-cash-sandbox.yml
- type: ChangeLog
  url: changelog/lemon-cash-changelog.yml
- type: Lifecycle
  url: lifecycle/lemon-cash-lifecycle.yml
- type: AgentSkill
  url: skills/_index.yml
- type: MediaKit
  url: https://lemon.me/media-kit
- type: Careers
  url: https://lemonsite.teamtailor.com/
- type: LinkedIn
  url: https://www.linkedin.com/company/lemonlat
- type: X
  url: https://twitter.com/lemonapp_ar
- type: YouTube
  url: https://www.youtube.com/c/LemonCashApp

Lemon Cash API — frequently asked questions

Does Lemon Cash have an API?

Yes. APIs.io lists 1 API from Lemon Cash, including Lemon Cash Mini App SDK.

How do I authenticate with the Lemon Cash API?

Lemon Cash uses bearer-token authentication (siwe · 1 scheme). The details are profiled on APIs.io as Lemon Cash Authentication.

Is the Lemon Cash API ready for AI agents?

Lemon Cash has a Kin Score of 41.3 out of 100 (developing) and an Agent Readiness score of 6.3 (agent-aware), scored by API Evangelist on 2026-11-06.

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