# Vatstack

**Canonical:** https://apis.io/providers/vatstack/  
**Website:** https://vatstack.com  
**APIs profiled:** 7

VAT number validation and EU tax rates REST API for validating European business VAT IDs via VIES and accessing current VAT rates for all EU member states. Vatstack provides automated VAT compliance for digital businesses including real-time VAT number validation, EU GST rate synchronization, price quotation engine, and automated VAT reporting for EC Sales List and VAT OSS requirements.

## Kin Score — 43.1 / 100 (developing)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 43.1).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 59.9 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 36.8 |
| Developer Ergonomics | 23.8 |
| Commercial Clarity | 50.0 |
| Access Clarity | 50.0 |

## Agent readiness — 19.8 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (7)

- **Vatstack Batches API** — The Batches API from Vatstack — 2 operation(s) for batches.
- **Vatstack Evidences API** — The Evidences API from Vatstack — 2 operation(s) for evidences.
- **Vatstack Hits API** — The Hits API from Vatstack — 1 operation(s) for hits.
- **Vatstack Quotes API** — The Quotes API from Vatstack — 2 operation(s) for quotes.
- **Vatstack Rates API** — The Rates API from Vatstack — 2 operation(s) for rates.
- **Vatstack Supplies API** — The Supplies API from Vatstack — 2 operation(s) for supplies.
- **Vatstack Validations API** — The Validations API from Vatstack — 2 operation(s) for validations.

## Agentic access (1)

- **Vatstack Agentic Access** — 23 operations · 10 acting

## Security (3)

- **Vatstack Authentication** — apiKey · 1 scheme
- **Vatstack Domain Security** — TLSv1.3 · HSTS · DMARC
- **Vatstack Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Vatstack Plans Pricing**

## Tags

VAT, Tax, Validation, EU, Europe, Compliance, Finance, Business

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/vatstack/). Scores are computed from the provider's own public artifacts under a published rubric.