Unstoppable Finance (Iron) website screenshot

Unstoppable Finance (Iron)

Unstoppable Finance is the Berlin fintech behind Iron (iron.xyz), the Stablecoin Payment Network - fiat-to-stablecoin and stablecoin-to-fiat infrastructure for businesses. Founded as Unstoppable Finance GmbH and builder of the Ultimate self-custodial DeFi wallet, the company rebranded to Iron and was acquired by MoonPay in 2025. The Iron API provides onramp, offramp, and swap flows via Autoramps (standing fiat/crypto conversion rules), customer onboarding with tiered KYC/KYB, Travel Rule wallet verification, virtual accounts, fee profiles, exchange rates, stablecoin issuance, and Standard Webhooks event delivery, with a fully simulated sandbox environment.

Unstoppable Finance (Iron) publishes 9 APIs on the APIs.io network, including Addresses API, Autoramp API, Currencies API, and 6 more. Tagged areas include Company, Stablecoins, Payments, On-Ramp, and Off-Ramp.

The Unstoppable Finance (Iron) catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Unstoppable Finance (Iron)’s developer surface includes documentation, getting-started guide, authentication, sandbox, CLI, support, pricing, and 26 more developer resources.

55.7/100 strong ▬ flat Agent 35/100 agent ready saas Full breakdown ↓
scored 2026-09-06 · rubric v0.19.0
1 APIs
CompanyStablecoinsPaymentsOn-RampOff-RampCryptocurrencyBankingFintechCompliance

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-06 · rubric v0.19.0
Regulatory Posture applies to this provider. Its tags matched the Banking & Open Finance 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/. 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 github.com/api-evangelist/unstoppable-finance: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 9

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

Unstoppable Finance (Iron) Addresses API

Wallet and bank account registration Every wallet address that interacts with Iron must be registered (linked) to a customer **before** it can be used in any flow — onramp, offr...

Unstoppable Finance (Iron) ExchangeRate API

Operations on Exchange Rate

Unstoppable Finance (Iron) FeeProfiles API

Operations on Fee Profiles

Unstoppable Finance (Iron) Sandbox API

Operations for Sandbox Testing

Unstoppable Finance (Iron) TermsAndConditions API

Operations on Terms and Conditions

Scroll for all 9

Postman Collections 9

Ready-to-run Postman collections for exercising this provider's APIs.

Scroll for all 9

Open Collections 10

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

API Collection

OPEN COLLECTION

Scroll for all 10

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Security Posture 4

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

Unstoppable Finance Authentication

apiKey · 1 scheme

SECURITY

Unstoppable Finance Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Unstoppable Finance Trust Center

SOC 2, ISO 27001, ISO 27701, ISO 27018, PCI DSS, CMMC, GDPR

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

Documentation 1

Reference material describing how the API behaves

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Scroll for all 7

Build 3

SDKs, sample code, and the tooling you integrate with

Access & Security 6

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 1

The organization behind the API

Other 2

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: unstoppable-finance
name: Unstoppable Finance (Iron)
description: Unstoppable Finance is the Berlin fintech behind Iron (iron.xyz), the Stablecoin Payment Network - fiat-to-stablecoin
  and stablecoin-to-fiat infrastructure for businesses. Founded as Unstoppable Finance GmbH and builder of the Ultimate self-custodial
  DeFi wallet, the company rebranded to Iron and was acquired by MoonPay in 2025. The Iron API provides onramp, offramp, and
  swap flows via Autoramps (standing fiat/crypto conversion rules), customer onboarding with tiered KYC/KYB, Travel Rule wallet
  verification, virtual accounts, fee profiles, exchange rates, stablecoin issuance, and Standard Webhooks event delivery,
  with a fully simulated sandbox environment.
url: https://raw.githubusercontent.com/api-evangelist/unstoppable-finance/refs/heads/main/apis.yml
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:
  - authentication
  - security
  - sandbox
  generated: '2026-09-03'
  method: derived
image: https://framerusercontent.com/images/HAx7iVFXocaeIm27aAOhEsYTyfE.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- speedinvest
x-tier: profile
x-tier-reason: enriched-provider
x-aka:
- Iron
- iron.xyz
- Ultimate
x-parent-company: MoonPay
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Stablecoins
- Payments
- On-Ramp
- Off-Ramp
- Cryptocurrency
- Banking
- Fintech
- Compliance
tags_raw:
- Company
- Stablecoins
- Payments
- Onramp
- Offramp
- Cryptocurrency
- Banking
- Fintech
- Compliance
apis:
- aid: unstoppable-finance:unstoppable-finance-addresses-api
  name: Unstoppable Finance (Iron) Addresses API
  description: 'Wallet and bank account registration


    Every wallet address that interacts with Iron must be registered (linked) to a customer **before** it can be used in any
    flow — onramp, offramp, or swap. This is a regulatory requirement under the **Travel Rule**, which obliges Virtual Asset
    Service Providers to exchange originator and beneficiary information for crypto transfers.


    Iron supports two wallet types:


    - **Self-hosted wallets** — the customer controls the private key. Registration requires a signed proof-of-ownership message.

    - **Hosted wallets** — the wallet is custodied by another VASP (e.g. Coinbase, Kraken). Registration requires the VASP''s
    DID so Iron can exchange travel-rule data with the custodian.


    Similarly, fiat bank accounts must be registered before they can receive offramp payouts.'
  humanURL: https://docs.iron.xyz/overview
  baseURL: https://api.iron.xyz/api
  tags:
  - Addresses
  properties:
  - type: OpenAPI
    url: openapi/unstoppable-finance-addresses-api-openapi.yml
  - type: Documentation
    url: https://docs.iron.xyz/overview
  - type: APIReference
    url: https://docs.iron.xyz/reference-sandbox/addresses/register-a-self-attested-wallet-address
- aid: unstoppable-finance:unstoppable-finance-autoramp-api
  name: Unstoppable Finance (Iron) Autoramp API
  description: Operations on Autoramp
  humanURL: https://docs.iron.xyz/overview
  baseURL: https://api.iron.xyz/api
  tags:
  - Autoramp
  properties:
  - type: OpenAPI
    url: openapi/unstoppable-finance-autoramp-api-openapi.yml
  - type: Documentation
    url: https://docs.iron.xyz/overview
  - type: APIReference
    url: https://docs.iron.xyz/reference-sandbox/addresses/register-a-self-attested-wallet-address
- aid: unstoppable-finance:unstoppable-finance-currencies-api
  name: Unstoppable Finance (Iron) Currencies API
  description: Operations on Currencies
  humanURL: https://docs.iron.xyz/overview
  baseURL: https://api.iron.xyz/api
  tags:
  - Currency
  tags_raw:
  - Currencies
  properties:
  - type: OpenAPI
    url: openapi/unstoppable-finance-currencies-api-openapi.yml
  - type: Documentation
    url: https://docs.iron.xyz/overview
  - type: APIReference
    url: https://docs.iron.xyz/reference-sandbox/addresses/register-a-self-attested-wallet-address
- aid: unstoppable-finance:unstoppable-finance-customer-api
  name: Unstoppable Finance (Iron) Customer API
  description: Operations on Customers
  humanURL: https://docs.iron.xyz/overview
  baseURL: https://api.iron.xyz/api
  tags:
  - Customers
  tags_raw:
  - Customer
  properties:
  - type: OpenAPI
    url: openapi/unstoppable-finance-customer-api-openapi.yml
  - type: Documentation
    url: https://docs.iron.xyz/overview
  - type: APIReference
    url: https://docs.iron.xyz/reference-sandbox/addresses/register-a-self-attested-wallet-address
- aid: unstoppable-finance:unstoppable-finance-exchangerate-api
  name: Unstoppable Finance (Iron) ExchangeRate API
  description: Operations on Exchange Rate
  humanURL: https://docs.iron.xyz/overview
  baseURL: https://api.iron.xyz/api
  tags:
  - Exchange Rate
  tags_raw:
  - ExchangeRate
  properties:
  - type: OpenAPI
    url: openapi/unstoppable-finance-exchangerate-api-openapi.yml
  - type: Documentation
    url: https://docs.iron.xyz/overview
  - type: APIReference
    url: https://docs.iron.xyz/reference-sandbox/addresses/register-a-self-attested-wallet-address
- aid: unstoppable-finance:unstoppable-finance-feeprofiles-api
  name: Unstoppable Finance (Iron) FeeProfiles API
  description: Operations on Fee Profiles
  humanURL: https://docs.iron.xyz/overview
  baseURL: https://api.iron.xyz/api
  tags:
  - Fee Profiles
  tags_raw:
  - FeeProfiles
  properties:
  - type: OpenAPI
    url: openapi/unstoppable-finance-feeprofiles-api-openapi.yml
  - type: Documentation
    url: https://docs.iron.xyz/overview
  - type: APIReference
    url: https://docs.iron.xyz/reference-sandbox/addresses/register-a-self-attested-wallet-address
- aid: unstoppable-finance:unstoppable-finance-sandbox-api
  name: Unstoppable Finance (Iron) Sandbox API
  description: Operations for Sandbox Testing
  humanURL: https://docs.iron.xyz/overview
  baseURL: https://api.iron.xyz/api
  tags:
  - Sandbox
  properties:
  - type: OpenAPI
    url: openapi/unstoppable-finance-sandbox-api-openapi.yml
  - type: Documentation
    url: https://docs.iron.xyz/overview
  - type: APIReference
    url: https://docs.iron.xyz/reference-sandbox/addresses/register-a-self-attested-wallet-address
- aid: unstoppable-finance:unstoppable-finance-termsandconditions-api
  name: Unstoppable Finance (Iron) TermsAndConditions API
  description: Operations on Terms and Conditions
  humanURL: https://docs.iron.xyz/overview
  baseURL: https://api.iron.xyz/api
  tags:
  - Terms And Conditions
  tags_raw:
  - TermsAndConditions
  properties:
  - type: OpenAPI
    url: openapi/unstoppable-finance-termsandconditions-api-openapi.yml
  - type: Documentation
    url: https://docs.iron.xyz/overview
  - type: APIReference
    url: https://docs.iron.xyz/reference-sandbox/addresses/register-a-self-attested-wallet-address
- aid: unstoppable-finance:unstoppable-finance-webhooks-api
  name: Unstoppable Finance (Iron) Webhooks API
  description: Operations on Webhooks
  humanURL: https://docs.iron.xyz/overview
  baseURL: https://api.iron.xyz/api
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/unstoppable-finance-webhooks-api-openapi.yml
  - type: Documentation
    url: https://docs.iron.xyz/overview
  - type: APIReference
    url: https://docs.iron.xyz/reference-sandbox/addresses/register-a-self-attested-wallet-address
common:
- type: CapabilityMap
  url: capabilities/unstoppable-finance-capability-edges.yml
  name: Unstoppable Finance (Iron) Business Capability Map
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/unstoppable-finance-iron/overview
- type: DomainSecurity
  url: security/unstoppable-finance-domain-security.yml
- type: Website
  url: https://iron.xyz
- type: DeveloperPortal
  url: https://app.iron.xyz
- type: Documentation
  url: https://docs.iron.xyz/overview
- type: GettingStarted
  url: https://docs.iron.xyz/onboarding
- type: Authentication
  url: authentication/unstoppable-finance-authentication.yml
- type: Sandbox
  url: sandbox/unstoppable-finance-sandbox.yml
- type: Webhooks
  url: asyncapi/unstoppable-finance-webhooks.yml
- type: CLI
  url: cli/unstoppable-finance-cli.yml
- type: Packages
  url: packages/unstoppable-finance-packages.yml
- type: WellKnown
  url: well-known/unstoppable-finance-well-known.yml
- type: X-MCPServerCandidate
  url: mcp/unstoppable-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: LLMsTxt
  url: llms/unstoppable-finance-llms.txt
- type: Overlay
  url: overlays/unstoppable-finance-iron-overlay.yaml
- type: Conformance
  url: conformance/unstoppable-finance-conformance.yml
- type: Compliance
  url: https://iron.xyz/compliance
- type: ErrorCatalog
  url: errors/unstoppable-finance-problem-types.yml
- type: Lifecycle
  url: lifecycle/unstoppable-finance-lifecycle.yml
- type: StatusPage
  url: https://status.iron.xyz
- type: Conventions
  url: conventions/unstoppable-finance-conventions.yml
- type: Idempotency
  url: conventions/unstoppable-finance-conventions.yml
- type: DataModel
  url: data-model/unstoppable-finance-data-model.yml
- type: TrustCenter
  url: security/unstoppable-finance-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/unstoppable-finance-vulnerability-disclosure.yml
- type: Security
  url: https://iron.xyz/security
- type: AgentSkill
  url: skills/_index.yml
- type: Support
  url: https://docs.iron.xyz/support
- type: Pricing
  url: https://iron.xyz/prices
- type: TermsOfService
  url: https://www.moonpay.com/legal
- type: PrivacyPolicy
  url: https://www.moonpay.com/legal/privacy_policy
- type: Login
  url: https://app.iron.xyz/signin
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 19
  pass: local-v1

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