Attestwire
Attestwire provides an online service to validate European e‑invoices such as XRechnung and Peppol. Users can paste invoice XML to see which rule failed, get plain‑language explanations, and understand required fixes. The platform also offers a Model Context Protocol (MCP) that lets AI assistants call fourteen compliance tools without an API key, with optional paid plans for higher limits. Documentation, guides, and a rule reference are available publicly.
Attestwire publishes 9 API contracts indexed on the APIs.io network, including Billing API, Diagnose API, Invoices API, and 6 more. Tagged areas include Attestwire, E-invoice, Validation, XRechnung, and PEPPOL.
The Attestwire catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.
Attestwire’s developer surface includes changelog, authentication, documentation, API reference, getting-started guide, support, pricing, and 32 more developer resources.
Kin Score
Standards implemented 2
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.
APIs 9
Individual APIs this provider publishes, each with its own machine-readable definition.
Attestwire Billing API
Paddle-hosted subscription checkout, and the customer portal.
Attestwire Diagnose API
The Diagnose API from Attestwire — 1 operation(s) for diagnose.
Attestwire Invoices API
Validation, generation, evidence bundles and e-mail delivery. Metered.
Attestwire Keys API
Self-serve API key issuance.
Attestwire Meta API
Health and machine-readable descriptions.
Attestwire Peppol API
The Peppol API from Attestwire — 1 operation(s) for peppol.
Attestwire Recipient API
The Recipient API from Attestwire — 1 operation(s) for recipient.
Attestwire Records API
Shareable proof that a check ran. Public, unauthenticated, and free on every plan.
Attestwire Vat API
The Vat API from Attestwire — 1 operation(s) for vat.
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MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
Agent Skills 2
Packaged agent skills for driving this provider's APIs from an AI assistant.
invoice-processing
AGENT SKILLvat-verification
AGENT SKILLPricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Attestwire Com Rate Limits
RATE LIMITSSemantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Attestwire Com Context
JSON-LDSpectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
Attestwire API Rules
SPECTRALJSON Schema 6
Standalone JSON Schema definitions for this provider's data models.
InvoiceInput
JSON SCHEMAParseResult
JSON SCHEMASendAccepted
JSON SCHEMATeachingError
JSON SCHEMAValidationRecord
JSON SCHEMAValidationResult
JSON SCHEMASecurity Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 2
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
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Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 7
Authentication, authorization, and security posture
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Operate 5
Status, limits, changes, and where to get help
Commercial 4
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)
Attestwire API — frequently asked questions
Does Attestwire have an API?
Yes. APIs.io lists 9 APIs from Attestwire, including Attestwire Billing API, Attestwire Diagnose API and Attestwire Invoices API, and 6 more.
Is there an OpenAPI specification for the Attestwire API?
Yes. APIs.io indexes 9 OpenAPI specifications for Attestwire, each linked for download from this page.
How do I authenticate with the Attestwire API?
Attestwire uses bearer-token authentication (1 scheme). The details are profiled on APIs.io as Attestwire Com Authentication.
How much does the Attestwire API cost?
APIs.io lists 4 pricing plans for Attestwire, with each plan's price, limits and inclusions under Pricing Plans on this page.
Does Attestwire have an MCP server?
Yes. APIs.io lists 1 MCP server for Attestwire: Remote MCP server at api.attestwire.com.
Is the Attestwire API ready for AI agents?
Attestwire has a Kin Score of 67.1 out of 100 (exemplar) and an Agent Readiness score of 38.9 (agent-ready), scored by API Evangelist on 2026-11-02.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.