IBAN Checker

IBAN Checker provides a free online tool to validate International Bank Account Numbers (IBANs) across 92 countries. It offers instant verification of bank name, BIC code, and format breakdown without storing any data, serving finance teams and developers needing quick IBAN checks. The service is hosted at ibanchecker.cash and includes comprehensive documentation and API access for integration.

IBAN Checker publishes 4 API contracts indexed on the APIs.io network, including Extract API, Formats API, Swift API, and 1 more. Tagged areas include Company, Finance, Banking, and Validation.

The IBAN Checker catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

IBAN Checker’s developer surface includes changelog, pricing, engineering blog, API reference, authentication, and 25 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

53.0/100 developing Agent 26/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

2 published contracts 1 Agent Skills

Company Finance Banking Validation

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 53.0/100 · developing

Contract Quality 13.8 / 21

Developer Ergonomics 3.9 / 17

Access Clarity 12.7 / 17

Operational Transparency 4.2 / 11

Contract Governance 3.6 / 10

Discoverability 5.8 / 9

Regulatory Posture 4.2 / 15

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 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 7 / 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 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.

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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
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) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented) Ask about this →

7 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 23.2 — up to +15.4 composite points Ask about this →
Contract Quality scores 64.9 — up to +8.8 composite points Ask about this →
Operational Transparency scores 38.1 — up to +8.0 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/ibanchecker-cash/apis.yml: open an issue on github.com/api-evangelist/ibanchecker-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 →

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 4

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

IBAN Checker Extract API

The Extract API from IBAN Checker — 1 operation(s) for extract.

IBAN Checker Formats API

The Formats API from IBAN Checker — 1 operation(s) for formats.

IBAN Checker Swift API

The Swift API from IBAN Checker — 1 operation(s) for swift.

IBAN Checker Validate API

The Validate API from IBAN Checker — 2 operation(s) for validate.

Agent Skills 1

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

validate-iban

AGENT SKILL

IBAN Checker API pricing

Prices published by IBAN Checker, read 2026-11-12 from ibanchecker.cash/pricing.

Plan	Price
Free	$0/ month
Basic	$9/ month
Starter	$29/ month
Growth	$99/ month
Enterprise	$299/ month

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

IBAN Checker Plans Pricing

5 plans

PLANS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Ibanchecker Cash Context

2 classes · 25 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

IBAN Checker API Rules

59 rules · 57 error-severity 1 warn-severity 1 info-severity

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

ValidationResult

22 properties

JSON SCHEMA

Security Posture 4

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

IBAN Checker Authentication

http · 1 scheme

SECURITY

IBAN Checker Domain Security

TLSv1.3 · DMARC

SECURITY

IBAN Checker Vulnerability Disclosure

security.txt · contact published

SECURITY

IBAN Checker Trust Center

SOC 2, ISO 27001, ISO 27018, PCI DSS

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

IBAN Checker Agentic Access

5 operations · 1 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Documentation 1

Reference material describing how the API behaves

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

WellKnown

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Access & Security 7

Authentication, authorization, and security posture

Compliance

SecurityTxt

Security

Authentication

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Scroll for all 7

Operate 3

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

StatusPage

StatusPage

ChangeLog

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: ibanchecker-cash
name: IBAN Checker
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://ibanchecker.cash/opengraph-image-12o0cb.png?69f3055c4d66bf64
description: IBAN Checker provides a free online tool to validate International Bank Account Numbers (IBANs) across 92 countries.
  It offers instant verification of bank name, BIC code, and format breakdown without storing any data, serving finance teams
  and developers needing quick IBAN checks. The service is hosted at ibanchecker.cash and includes comprehensive documentation
  and API access for integration.
url: https://artifacts.apis.io/ibanchecker-cash/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-12 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-11'
modified: '2026-11-11'
tags:
- Company
- Finance
- Banking
- Validation
tags_raw:
- Company
- Finance
- Banking
- Validation
- API
- FreeTool
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/ibanchecker-cash-agentic-access.yml
- type: Plans
  url: plans/ibanchecker-cash-plans-pricing.yml
- type: Spectral
  url: rules/ibanchecker-cash-rules.yml
- type: JSONLD
  url: json-ld/ibanchecker-cash-context.jsonld
- type: Vocabulary
  url: vocabulary/ibanchecker-cash-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/ibanchecker-cash-data-model.yml
- type: ChangeLog
  url: changelog/ibanchecker-cash-changelog.yml
- type: Compliance
  url: https://ibanchecker.cash/security
- type: ErrorCatalog
  url: errors/ibanchecker-cash-problem-types.yml
- type: Conformance
  url: conformance/ibanchecker-cash-conformance.yml
- type: LLMsTxt
  url: llms/ibanchecker-cash-llms.txt
- type: SecurityTxt
  url: well-known/ibanchecker-cash-security.txt
- type: WellKnown
  url: well-known/ibanchecker-cash-well-known.yml
- type: Hosts
  url: hosts/ibanchecker-cash-hosts.yml
- type: Vendors
  url: vendors/ibanchecker-cash-vendors.yml
- type: TermsOfService
  url: https://ibanchecker.cash/terms
- type: StatusPage
  url: https://ibanchecker.cash/status
- type: Security
  url: https://ibanchecker.cash/security
- type: PrivacyPolicy
  url: https://ibanchecker.cash/privacy
- type: Pricing
  url: https://ibanchecker.cash/pricing
- type: Login
  url: https://ibanchecker.cash/login
- type: ChangeLog
  url: https://ibanchecker.cash/changelog
- type: Blog
  url: https://ibanchecker.cash/blog
- type: APIReference
  url: https://ibanchecker.cash/llms.txt
- type: Authentication
  url: authentication/ibanchecker-cash-authentication.yml
- type: TrustCenter
  url: security/ibanchecker-cash-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/ibanchecker-cash-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/ibanchecker-cash-domain-security.yml
- type: Website
  url: https://ibanchecker.cash/
apis:
- aid: ibanchecker-cash:ibanchecker-cash-extract-api
  name: IBAN Checker Extract API
  description: The Extract API from IBAN Checker — 1 operation(s) for extract.
  humanURL: https://ibanchecker.cash/api-docs
  baseURL: https://ibanchecker.cash/api/v1
  tags:
  - Extract
  properties:
  - type: OpenAPI
    url: openapi/ibanchecker-cash-extract-api-openapi.yml
- aid: ibanchecker-cash:ibanchecker-cash-formats-api
  name: IBAN Checker Formats API
  description: The Formats API from IBAN Checker — 1 operation(s) for formats.
  humanURL: https://ibanchecker.cash/api-docs
  baseURL: https://ibanchecker.cash/api/v1
  tags:
  - Formats
  properties:
  - type: OpenAPI
    url: openapi/ibanchecker-cash-formats-api-openapi.yml
- aid: ibanchecker-cash:ibanchecker-cash-swift-api
  name: IBAN Checker Swift API
  description: The Swift API from IBAN Checker — 1 operation(s) for swift.
  humanURL: https://ibanchecker.cash/api-docs
  baseURL: https://ibanchecker.cash/api/v1
  tags:
  - Swift
  properties:
  - type: OpenAPI
    url: openapi/ibanchecker-cash-swift-api-openapi.yml
- aid: ibanchecker-cash:ibanchecker-cash-validate-api
  name: IBAN Checker Validate API
  description: The Validate API from IBAN Checker — 2 operation(s) for validate.
  humanURL: https://ibanchecker.cash/api-docs
  baseURL: https://ibanchecker.cash/api/v1
  tags:
  - Validate
  properties:
  - type: OpenAPI
    url: openapi/ibanchecker-cash-validate-api-openapi.yml
  - type: JSONSchema
    url: json-schema/ibanchecker-cash-validation-result-schema.json
x-enrichment:
  date: '2026-11-12'
  status: enriched
  artifacts_added: 29
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

IBAN Checker API — frequently asked questions

Does IBAN Checker have an API?

Yes. APIs.io lists 4 APIs from IBAN Checker, including IBAN Checker Extract API, IBAN Checker Formats API and IBAN Checker Swift API, and 1 more.

Is there an OpenAPI specification for the IBAN Checker API?

Yes. APIs.io indexes 4 OpenAPI specifications for IBAN Checker, each linked for download from this page.

How do I authenticate with the IBAN Checker API?

IBAN Checker uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as IBAN Checker Authentication.

How much does the IBAN Checker API cost?

IBAN Checker publishes its prices; its Free plan is $0/ month as of 2026-11-12. APIs.io lists 5 pricing plans for IBAN Checker, with each plan's price, limits and inclusions under Pricing on this page.

Is the IBAN Checker API ready for AI agents?

IBAN Checker has a Kin Score of 53.0 out of 100 (developing) and an Agent Readiness score of 25.5 (agent-aware), scored by API Evangelist on 2026-11-13.

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