VAT API

EU and UK VAT compliance REST API providing VAT rate retrieval, VAT number validation via the European Commission VIES system and UK HMRC, currency conversion, and VAT-compliant invoice generation. Operated by Eventured Ltd and launched in 2015, it connects directly to authoritative EU and HMRC sources to deliver audit-ready consultation numbers and real-time rate data.

VAT API is listed with 1 API on the APIs.io network: v2. Tagged areas include VAT, Tax, EU, United Kingdom, and Compliance.

VAT API’s developer surface includes documentation, pricing, engineering blog, and 8 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

13.0/100 emerging ▬ flat Agent 3/100 human only Front door AI 1/6 silent Heartbeat 67/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumFree trial

1 API

VAT Tax EU United Kingdom Compliance InvoicesVIESBusiness Verification

Kin Score

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

Composite quality — 13.0/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 3.1 / 17

Operational Transparency 1.5 / 11

Contract Governance 0.0 / 10

Discoverability 5.6 / 9

Regulatory Posture 0.9 / 15

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 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 Horizontal (data, software, accessibility, platform) 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
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)
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

12 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
Developer Ergonomics scores 11.9 — up to +17.6 composite points
Access Clarity scores 18.4 — up to +16.3 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/vatapi/apis.yml: open an issue on github.com/api-evangelist/vatapi 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
APIs.guru OpenAPI Directory (API definition directory)	standard	17.2 (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.

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.

Postman Collections

measured — observed by APIs.io (published)

APIs 1

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

VAT API v2

REST API for EU and UK VAT compliance including VAT rate lookups by country, VAT number validation against VIES and HMRC, currency conversion rates from HMRC and ECB, and genera...

VAT API pricing

Not yet checked against VAT API's own pricing page. Compiled by API Evangelist; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free Trial	Free
Starter	—
Business	—
Enterprise	—

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Vatapi Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Vatapi Rate Limits

3 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Vatapi Finops

FINOPS

Security Posture 1

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

Vatapi Domain Security

TLSv1.2 · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

Blog

Blog

BlogPosts

BlogPosts

Source (apis.yml)

aid: vatapi
name: VAT API
description: EU and UK VAT compliance REST API providing VAT rate retrieval, VAT number validation via the European Commission
  VIES system and UK HMRC, currency conversion, and VAT-compliant invoice generation. Operated by Eventured Ltd and launched
  in 2015, it connects directly to authoritative EU and HMRC sources to deliver audit-ready consultation numbers and real-time
  rate data.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: true
  try_now: false
  public: false
  label: Freemium (free trial)
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/vatapi.png
url: https://raw.githubusercontent.com/api-evangelist/vatapi/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'
x-docs-platform: postman
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-17
tags:
- VAT
- Tax
- EU
- United Kingdom
- Compliance
- Invoices
- VIES
- Business Verification
tags_raw:
- VAT
- Tax
- EU
- UK
- Compliance
- Invoice
- VIES
- Business Verification
apis:
- aid: vatapi:vat-api
  name: VAT API v2
  description: REST API for EU and UK VAT compliance including VAT rate lookups by country, VAT number validation against
    VIES and HMRC, currency conversion rates from HMRC and ECB, and generation of VAT-compliant invoices with sequential numbering.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://vatapi.com/
  baseURL: https://eu.vatapi.com/v2
  tags:
  - VAT Rates
  - VAT Number Validation
  - Invoicing
  - Currency Conversion
  - VIES
  - HMRC
  properties:
  - type: Documentation
    url: https://docs.vatapi.com/
  - type: PostmanWorkspace
    url: https://www.postman.com/vatapi/vat-api-s-public-workspace/documentation/ku592di/vat-api
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/vatapi/refs/heads/main/plans/vatapi-plans-pricing.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/vatapi/refs/heads/main/rate-limits/vatapi-rate-limits.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/vatapi/refs/heads/main/finops/vatapi-finops.yml
common:
- type: DomainSecurity
  url: security/vatapi-domain-security.yml
- type: Website
  url: https://vatapi.com/
- type: Documentation
  url: https://docs.vatapi.com/
- type: Pricing
  url: https://vatapi.onfastspring.com/
- type: Blog
  url: https://vatapi.com/news
- type: GitHubOrg
  url: https://github.com/infolution
- type: Plans
  url: https://raw.githubusercontent.com/api-evangelist/vatapi/refs/heads/main/plans/vatapi-plans-pricing.yml
- type: RateLimits
  url: https://raw.githubusercontent.com/api-evangelist/vatapi/refs/heads/main/rate-limits/vatapi-rate-limits.yml
- type: FinOps
  url: https://raw.githubusercontent.com/api-evangelist/vatapi/refs/heads/main/finops/vatapi-finops.yml
- type: BlogPosts
  url: https://raw.githubusercontent.com/api-evangelist/vatapi/refs/heads/main/blogs/blogs.json
- type: JSONLD
  url: https://raw.githubusercontent.com/api-evangelist/vatapi/refs/heads/main/json-ld/vatapi.json
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

VAT API — frequently asked questions

Does VAT API have an API?

Yes. APIs.io lists 1 API from VAT API, including VAT API v2.

How much does the VAT API cost?

APIs.io lists 4 pricing plans for VAT API, with each plan's price, limits and inclusions under Pricing on this page.

Is the VAT API ready for AI agents?

VAT API has a Kin Score of 13.0 out of 100 (emerging) and an Agent Readiness score of 2.5 (human-only), scored by API Evangelist on 2026-11-06.

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