Sling (Morse)

Sling Money — rebranded to Morse in 2026 — is a consumer stablecoin money transfer app built by Avian Labs that lets people receive, hold, spend, invest, send, and convert US dollars across 150+ countries. It settles near-instant, low-fee cross-border payments over the Solana blockchain using reserve-backed stablecoins (USDC, EURC, USDP), and pairs the app with a prepaid Visa card and US stock/ETF investing. The company is regulated as a MiCAR-authorised crypto-asset service provider (AFM, Netherlands), a FinCEN-registered US Money Services Business, and is ISO/IEC 27001:2022 certified. It is a consumer product with no public developer API surface; this profile captures its published identity, security, and compliance posture.

Sling (Morse) is profiled on the APIs.io network. Tagged areas include Company, Fintech, Payments, Money Transfer, and Cross-Border Payments.

Sling (Morse)’s developer surface includes engineering blog, support, pricing, signup flow, and 14 more developer resources.

🌐 Visit website 📡 Source on GitHub
30.4/100 thin ▬ flat Agent 7/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyFintechPaymentsMoney TransferCross-Border PaymentsRemittancesStablecoinsCryptocurrencySolanaConsumer Finance

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 30.4/100 · thin
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 12.1 / 20
Operational Transparency 4.1 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 7/100 · 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 4 / 4
Consent & Bot Identity 3 / 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/sling: 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 3

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

Sling Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Sling Vulnerability Disclosure

security.txt · contact published

SECURITY

Sling Trust Center

ISO/IEC 27001:2022

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp
SignUp

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown
 LLMsTxt
LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 6

Authentication, authorization, and security posture

Compliance
Compliance
 TrustCenter
TrustCenter
 Security
Security
 VulnerabilityDisclosure
VulnerabilityDisclosure
 SecurityTxt
SecurityTxt
 DomainSecurity
DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support
Support
 StatusPage
StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: sling
name: Sling (Morse)
description: Sling Money — rebranded to Morse in 2026 — is a consumer stablecoin money transfer app built by Avian Labs that
  lets people receive, hold, spend, invest, send, and convert US dollars across 150+ countries. It settles near-instant, low-fee
  cross-border payments over the Solana blockchain using reserve-backed stablecoins (USDC, EURC, USDP), and pairs the app
  with a prepaid Visa card and US stock/ETF investing. The company is regulated as a MiCAR-authorised crypto-asset service
  provider (AFM, Netherlands), a FinCEN-registered US Money Services Business, and is ISO/IEC 27001:2022 certified. It is
  a consumer product with no public developer API surface; this profile captures its published identity, security, and compliance
  posture.
url: https://raw.githubusercontent.com/api-evangelist/sling/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- union-square-ventures
x-tier: stub
x-tier-reason: portfolio-lead
x-rebrand:
  from: Sling Money
  to: Morse
  parent: Avian Labs
  note: sling.money 301-redirects to morsemoney.com
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
image: https://morsemoney.com/og-default.png
tags:
- Company
- Fintech
- Payments
- Money Transfer
- Cross-Border Payments
- Remittances
- Stablecoins
- Cryptocurrency
- Solana
- Consumer Finance
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://morsemoney.com
- type: Blog
  url: https://morsemoney.com/blog
- type: Support
  url: https://support.sling.money
- type: StatusPage
  url: https://status.morsemoney.com
- type: GitHubOrganization
  url: https://github.com/avianlabs
- type: Pricing
  url: https://morsemoney.com/fees
- type: SignUp
  url: https://morsemoney.com/download
- type: TermsOfService
  url: https://morsemoney.com/legal/terms-of-service
- type: PrivacyPolicy
  url: https://morsemoney.com/legal/privacypolicy-cookienotice
- type: Compliance
  url: https://morsemoney.com/legal/regulatory-compliance
- type: TrustCenter
  url: security/sling-trust-center.yml
- type: Security
  url: https://morsemoney.com/legal/regulatory-compliance
- type: VulnerabilityDisclosure
  url: security/sling-vulnerability-disclosure.yml
- type: SecurityTxt
  url: well-known/sling-security.txt
- type: WellKnown
  url: well-known/sling-well-known.yml
- type: DomainSecurity
  url: security/sling-domain-security.yml
- type: Conformance
  url: conformance/sling-conformance.yml
- type: LLMsTxt
  url: llms/sling-llms.txt
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 7
  pass: local-v1