Loon Finance

Loon is a Calgary-based fintech and the issuer of CADC, a regulated, fiat-backed stablecoin pegged 1:1 to the Canadian dollar. Reserves are held in segregated cash deposits at ATB Financial and attested independently every month by HDCPA Professional Corporation, with FINTRAC compliance and a prospectus pre-filed with the Alberta Securities Commission. CADC is issued on Ethereum, Base, Polygon, Arbitrum, Linea, and Solana, and Loon acquired the token from Paytrie (launched 2021, $200M+ in cumulative volume). Loon publishes a small public, unauthenticated Transparency API exposing live circulating supply per chain, on-chain issuance (mint) events, and the monthly reserve-attestation history, backed by an llms.txt, a security.txt disclosure policy, and a public transparency dashboard.

Loon Finance publishes 3 API contracts indexed on the APIs.io network: Attestations API, Issuances API, and Supply API. Tagged areas include Company, Fintech, Stablecoins, Cryptocurrency, and Payments.

The Loon Finance catalog on APIs.io includes 1 Spectral governance ruleset.

Loon Finance’s developer surface includes documentation, engineering blog, support, and 19 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

42.8/100 developing ▬ flat Agent 17/100 agent aware Front door AI 1/6 silent Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 Agent Skills

Company Fintech Stablecoins Cryptocurrency Payments CanadaDigital DollarBlockchain Transparency Stablecoin Issuance

Kin Score

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

Composite quality — 42.8/100 · developing

Contract Quality 9.7 / 21

Developer Ergonomics 3.1 / 17

Access Clarity 13.4 / 17

Operational Transparency 0.6 / 11

Contract Governance 3.2 / 10

Discoverability 5.5 / 9

Regulatory Posture 4.0 / 15

Agent readiness — 17/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 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 4 / 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 0 / 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
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)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

8 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 18.5 — up to +16.3 composite points
Contract Quality scores 45.5 — up to +13.6 composite points
Operational Transparency scores 5.3 — up to +12.3 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/loon-finance/apis.yml: open an issue on github.com/api-evangelist/loon-finance 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
Stablecoins and Tokenization (stablecoin issuers, tokenized assets)	undeclared	-	-	-
Canada RPAA Payment Service Providers (Bank of Canada registry + Payments Canada)	undeclared	-	-	-

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.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 3

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

Loon Finance Attestations API

Independent monthly reserve attestation reports.

Loon Finance Issuances API

On-chain CADC mint events per chain.

Loon Finance Supply API

Circulating and total CADC supply, overall and per chain.

Open Collections 3

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Loon CADC Transparency Attestations API

OPEN COLLECTION

Loon CADC Transparency Attestations Issuances API

OPEN COLLECTION

Loon CADC Transparency Attestations Supply API

OPEN COLLECTION

Agent Skills 1

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

Check CADC supply and reserve backing

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Loon Finance API Rules

51 rules · 49 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Loon Finance Transparency Overlay

2 actions · update · loon-finance-transparency-openapi.yml

DERIVED

Security Posture 2

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

Loon Finance Domain Security

TLSv1.3 · DMARC

SECURITY

Loon Finance Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Loon Finance Agentic Access

3 operations

3 operations · 0 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

WellKnown

WellKnown

X-MCPServerCandidate

X-MCPServerCandidate

AgentSkill

AgentSkill

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Conventions

Conventions

DataModel

DataModel

Conformance

Conformance

Access & Security 5

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

DomainSecurity

SecurityTxt

Compliance

Operate 1

Status, limits, changes, and where to get help

Support

Support

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

Twitter

Twitter

LinkedIn

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: loon-finance
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 14
  pass: local-v1
name: Loon Finance
description: Loon is a Calgary-based fintech and the issuer of CADC, a regulated, fiat-backed stablecoin pegged 1:1 to the
  Canadian dollar. Reserves are held in segregated cash deposits at ATB Financial and attested independently every month by
  HDCPA Professional Corporation, with FINTRAC compliance and a prospectus pre-filed with the Alberta Securities Commission.
  CADC is issued on Ethereum, Base, Polygon, Arbitrum, Linea, and Solana, and Loon acquired the token from Paytrie (launched
  2021, $200M+ in cumulative volume). Loon publishes a small public, unauthenticated Transparency API exposing live circulating
  supply per chain, on-chain issuance (mint) events, and the monthly reserve-attestation history, backed by an llms.txt, a
  security.txt disclosure policy, and a public transparency dashboard.
url: https://raw.githubusercontent.com/api-evangelist/loon-finance/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- version-one-ventures
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://loon.finance/apple-touch-icon.png
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Fintech
- Stablecoins
- Cryptocurrency
- Payments
- Canada
- Digital Dollar
- Blockchain
- Transparency
- Stablecoin Issuance
tags_raw:
- Company
- Fintech
- Stablecoin
- Cryptocurrency
- Payments
- Canada
- Digital Dollar
- Blockchain
- Transparency
- Stablecoin Issuance
apis:
- aid: loon-finance:loon-finance-attestations-api
  name: Loon Finance Attestations API
  description: Independent monthly reserve attestation reports.
  humanURL: https://loon.finance/llms.txt
  tags:
  - Attestation
  tags_raw:
  - Attestations
  properties:
  - type: OpenAPI
    url: openapi/loon-finance-attestations-api-openapi.yml
- aid: loon-finance:loon-finance-issuances-api
  name: Loon Finance Issuances API
  description: On-chain CADC mint events per chain.
  humanURL: https://loon.finance/llms.txt
  tags:
  - Issuances
  properties:
  - type: OpenAPI
    url: openapi/loon-finance-issuances-api-openapi.yml
- aid: loon-finance:loon-finance-supply-api
  name: Loon Finance Supply API
  description: Circulating and total CADC supply, overall and per chain.
  humanURL: https://loon.finance/llms.txt
  tags:
  - Supply
  properties:
  - type: OpenAPI
    url: openapi/loon-finance-supply-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/loon-finance-transparency-overlay.yaml
- type: AgenticAccess
  url: agentic-access/loon-finance-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/loon-finance-vulnerability-disclosure.yml
- type: Security
  url: https://loon.finance/.well-known/security.txt
- type: DomainSecurity
  url: security/loon-finance-domain-security.yml
- type: Website
  url: https://loon.finance/
- type: Documentation
  url: https://loon.finance/cadc-partners
- type: Blog
  url: https://loon.finance/blog
- type: Support
  url: https://loon.finance/support-centre
- type: TermsOfService
  url: https://loon.finance/terms-of-service
- type: PrivacyPolicy
  url: https://loon.finance/privacy-policy
- type: Twitter
  url: https://x.com/LoonFinance
- type: LinkedIn
  url: https://www.linkedin.com/company/loonfinance/
- type: LLMsTxt
  url: llms/loon-finance-llms.txt
- type: WellKnown
  url: well-known/loon-finance-well-known.yml
- type: SecurityTxt
  url: well-known/loon-finance-security.txt
- type: X-MCPServerCandidate
  url: mcp/loon-finance-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: Conventions
  url: conventions/loon-finance-conventions.yml
- type: DataModel
  url: data-model/loon-finance-data-model.yml
- type: Conformance
  url: conformance/loon-finance-conformance.yml
- type: Compliance
  url: https://loon.finance/transparency
- type: AgentSkill
  url: skills/_index.yml

Loon Finance API — frequently asked questions

Does Loon Finance have an API?

Yes. APIs.io lists 3 APIs from Loon Finance, including Loon Finance Attestations API, Loon Finance Issuances API and Loon Finance Supply API.

Is there an OpenAPI specification for the Loon Finance API?

Yes. APIs.io indexes 3 OpenAPI specifications for Loon Finance, each linked for download from this page.

Is the Loon Finance API ready for AI agents?

Loon Finance has a Kin Score of 42.8 out of 100 (developing) and an Agent Readiness score of 17.4 (agent-aware), scored by API Evangelist on 2026-11-06.

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