Attestwire is profiled on APIs.io from a single APIs.json file, apis.yml. Attestwire provides an online service to validate European e‑invoices such as XRechnung and Peppol. The file indexes 9 APIs and 39 common properties. 64 Kin Score checks read this file, and it earns 116 of their 267 points. Attestwire scored 55.3 (strong) on 2026-11-08; the badge above is live and shows the current score.
What the file contains
- 7 tags: Attestwire, E-invoice, Validation, XRechnung, Peppol, API, MCP
- Specification version: 0.20
- Created: 2026-11-02
- Modified: 2026-11-02
- Maintainers: 2 listed
Common properties (38 types) apply across every API in the file:
AgenticAccess · AgentSkill · APIReference · Authentication · ChangeLog · Compliance · Conformance · DataModel · DeveloperPortal · Documentation · DomainSecurity · ErrorCatalog · GettingStarted · GitHubOrganization · Hosts · JSONLD · Lifecycle · LLMsTxt · MCPServer · Packages · Plans · Pricing · PrivacyPolicy · RateLimits · SDKs · Security · SecurityTxt · Spectral · StatusPage · Support · TermsOfService · ToolCrosswalk · TrustCenter · Vendors · Vocabulary · VulnerabilityDisclosure · Website · WellKnown
APIs (9):
- Attestwire Billing API — APIReference, Documentation, JSONSchema, OpenAPI
- Attestwire Diagnose API — APIReference, Documentation, JSONSchema, OpenAPI
- Attestwire Invoices API — APIReference, Documentation, JSONSchema, OpenAPI
- Attestwire Keys API — APIReference, Documentation, JSONSchema, OpenAPI
- Attestwire Meta API — APIReference, Documentation, JSONSchema, OpenAPI
- Attestwire Peppol API — APIReference, Documentation, JSONSchema, OpenAPI
- Attestwire Recipient API — APIReference, Documentation, JSONSchema, OpenAPI
- Attestwire Records API — APIReference, Documentation, JSONSchema, OpenAPI
- Attestwire Vat API — APIReference, Documentation, JSONSchema, OpenAPI
How the file drives the Kin Score
64 checks in rubric 0.26.0 read this file. 17 are earned, 17 partly, and 30 are not.
| Check | Points | What it reads |
|---|---|---|
| Discoverability — 37 of 43 points | ||
| Publishes an apis.yml index | 10 / 10 | source_filename == "apis.yml" |
| Base URL on every API | 5 / 5 | every api has baseURL and no baseURL contains "localhost" |
| Human URL on every API | 5 / 5 | every api has humanURL |
| Substantive description | 5 / 5 | len(description) >= 200 |
| Tagged for discovery | 5 / 5 | len(tags) >= 5 |
| Named maintainer | 3 / 3 | maintainers[0].email is set |
| Created and modified dates | 2 / 2 | created and modified both ISO dates |
| Provider image | 2 / 2 | image is set |
| Contract governance — 1.2 of 5 points | ||
| Publishes a vocabulary | 1.2 / 5 | common[].type includes "Vocabulary" |
| Operational transparency — 9 of 26 points | ||
| Change log | 3 / 6 | common[].type includes "ChangeLog" (alias-aware) |
| Status page | 3 / 6 | common[].type includes "StatusPage" |
| Security disclosure | 2 / 4 | common[].type includes "Security" (alias-aware) |
| GitHub organization | 1 / 2 | common[].type includes "GitHubOrganization" or "GitHubRepository" (alias-aware) |
| Developer ergonomics — 20.7 of 42 points | ||
| Authentication documented | 5 / 5 | common[].type includes "Authentication" |
| At least one SDK | 3 / 3 | count(common[].type == "SDK" alias-aware) >= 1 |
| Agent Skill | 2.7 / 3 | common[].type includes "AgentSkill", graded by who authored it |
| Getting started guide | 2.5 / 5 | common[].type includes "GettingStarted" or "Quickstart" |
| Developer portal | 2 / 4 | common[].type includes "DeveloperPortal" (alias-aware) |
| Documentation | 2 / 4 | common[].type includes "Documentation" |
| Support channel | 2 / 2 | common[].type includes "Support" or "HelpCenter" or "Community" |
| API reference | 1.5 / 3 | common[].type includes "APIReference" (alias-aware) |
| Access clarity — 10.5 of 23 points | ||
| Trust center | 3 / 3 | common[].type includes "TrustCenter" or "Trust" |
| Pricing published | 2 / 4 | common[].type includes "Pricing" |
| Privacy policy | 2 / 4 | common[].type includes "PrivacyPolicy" (alias-aware) |
| Terms of service | 2 / 4 | common[].type includes "TermsOfService" (alias-aware) |
| Compliance published | 1.5 / 3 | common[].type includes "Compliance" |
| Regulatory — 29.5 of 94 points | ||
| Authentication model documented | 6 / 6 | common[].type includes "Authentication" or "OpenIDConnect" |
| Security posture published | 6 / 6 | common[].type includes "Security" or "DomainSecurity" |
| Vulnerability disclosure program | 6 / 6 | common[].type includes "VulnerabilityDisclosure" |
| Data-standard conformance | 5 / 5 | implements a recognized data standard — common[].type includes "Standard"/"Conformance", or a Vocabulary/JSON-LD context is published |
| Compliance / certification disclosure | 2.5 / 5 | common[].type includes "Compliance" or "TrustCenter" or "Trust" |
| Privacy policy (data handling) | 2 / 4 | common[].type includes "PrivacyPolicy" |
| Terms of service (legal basis) | 2 / 4 | common[].type includes "TermsOfService" |
| Agent readiness — 8 of 30 points | ||
| Stable Error Semantics | 8 / 8 | OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes |
What the file does not say yet
151.1 more points depend on entries this file does not have. A missing pointer means the file does not link to it. It does not mean Attestwire has not published it.
- Consent-scoped authorization (10 pts) —
common[].type includes "OAuthScopes" OR a scopes artifact is present - 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) - Typed Event Surface (6 pts) —
AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks - Self-service sign-up (5 pts) —
common[].type includes "SignUp" or "Login" - Accessibility conformance report (4 pts) —
common[].type includes "AccessibilityConformance" - Age assurance (4 pts) —
common[].type includes "AgeAssurance" - Data residency statement (4 pts) —
common[].type includes "DataResidency" - Data-subject request route (4 pts) —
common[].type includes "DataSubjectRequest" - Declared support lifetime (4 pts) —
common[].type includes "SupportLifetime" - Exit assistance / switching terms (4 pts) —
common[].type includes "ExitAssistance" - Global Privacy Control honoured (4 pts) —
common[].type includes "GlobalPrivacyControl" - Incident notification commitment (4 pts) —
common[].type includes "IncidentNotification" - Notice-and-action mechanism (4 pts) —
common[].type includes "NoticeAndAction" - Published example corpus (4 pts) —
common[].type includes "Examples" (alias-aware: CodeExamples, Samples, CodeSamples, Demos) - Self-hosts the APIs.json index (4 pts) —
apis.yml url points at a host the provider controls, not the catalog - Software bill of materials (4 pts) —
common[].type includes "SBOM" - Subprocessor list (4 pts) —
common[].type includes "Subprocessors" - Three or more SDKs (4 pts) —
count(common[].type == "SDK" alias-aware) >= 3 - Transparency report (4 pts) —
common[].type includes "TransparencyReport" - Well-Known Catalog (4 pts) —
common[].type includes WellKnown, APICatalog, or api-catalog - Command-line interface (3 pts) —
common[].type includes "CLI" - Consent & Bot Identity (3 pts) —
common[].type includes AIPREF, ContentSignal, WebBotAuth, or HTTPMessageSignatures - Console or sandbox (3 pts) —
common[].type includes "Console" or "Sandbox" or "Playground" - Deprecation policy (3 pts) —
common[].type includes "Deprecation" (alias-aware) - Webhooks advertised (3 pts) —
common[].type includes "Webhooks" - Postman collection (2 pts) —
common[].type includes "Postman" (alias-aware), graded by who authored it - Public roadmap (2 pts) —
common[].type includes "RoadMap" or "Roadmap" - Blog (1 pt) —
common[].type includes "Blog" - Leadership page (1 pt) —
common[].type includes Leadership, LeadershipTeam, Management or ExecutiveTeam - Newsroom (1 pt) —
common[].type includes Newsroom, PressReleases, Press or News
Who keeps this file
API Evangelist maintains this file at github.com/api-evangelist/attestwire-com. If you work at Attestwire, you can open an issue or a pull request to add or correct an entry. You can also publish your own APIs.json at /.well-known/apis.json on your domain, which earns the self-hosting check and makes the file yours.
See the full rating on the Attestwire profile, and how every check is scored at apis.io/rating.