Factuarea

Factuarea provides invoicing software for freelancers and small businesses in Spain, offering electronic invoice creation, payment collection, and VeriFactu verification in a single platform. The web‑based solution supports multiple languages, integrates with Spanish tax regulations, and offers a 10‑day free trial without requiring a credit card.

Factuarea is listed with 2 APIs on the APIs.io network. Tagged areas include Invoicing, Software, Spain, Fintech, and Software-as-a-Service.

The Factuarea catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.

Factuarea’s developer surface includes changelog, authentication, signup flow, engineering blog, getting-started guide, documentation, API reference, and 24 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

40.1/100 developing Agent 28/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessSelf serve

2 APIs

Invoicing Software Spain Fintech Software-as-a-Service

Kin Score

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

Composite quality — 40.1/100 · developing

Contract Quality 6.9 / 21

Developer Ergonomics 10.1 / 17

Access Clarity 1.8 / 17

Operational Transparency 6.3 / 11

Contract Governance 2.2 / 10

Discoverability 5.8 / 9

Regulatory Posture 3.4 / 15

Agent readiness — 28/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 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 0 / 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):

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 →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes 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 →

9 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 10.6 — up to +17.9 composite points Ask about this →
Contract Quality scores 32.6 — up to +16.9 composite points Ask about this →
Contract Governance scores 22.0 — up to +9.4 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/factuarea-com/apis.yml: open an issue on github.com/api-evangelist/factuarea-com 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 →

APIs 2

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

Factuarea API

Factuarea provides invoicing and VeriFactu services via a web application, but no public machine‑readable API contract was found.

Factuarea API

Factuarea API as documented publicly: 8 operations. Contract generated from the documentation by API Evangelist (2026-11-07); not the provider's own document.

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Factuarea Com Webhooks

ASYNCAPI

Semantic Vocabularies 1

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

Factuarea Com Context

8 classes · 33 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.

Factuarea API Rules

43 rules · 40 error-severity 1 warn-severity 2 info-severity

SPECTRAL

JSON Schema 6

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

GetV1CompaniesCompanyEventsResponse

3 properties

JSON SCHEMA

GetV1CompaniesCompanyPacksPackResponse

1 properties

JSON SCHEMA

GetV1CompaniesCompanyPacksResponse

3 properties

JSON SCHEMA

GetV1CompaniesCompanyTaxesResponse

3 properties

JSON SCHEMA

PostV1Companies01931B3E7C4A7F2E9A8B3C5D6E7F8A01PacksRequest

11 properties

JSON SCHEMA

PostV1Companies01931B3E7C4A7F2E9A8B3C5D6E7F8A01PacksResponse

30 properties

JSON SCHEMA

Security Posture 3

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

Factuarea Authentication

1 scheme

SECURITY

Factuarea Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Factuarea Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

SignUp

SignUp

GettingStarted

GettingStarted

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 9

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

Webhooks

DataModel

Idempotency

Conventions

Lifecycle

Conformance

Scroll for all 9

Build 2

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

GitHubOrganization

GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

Security

Security

Authentication

Authentication

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

ChangeLog

Deprecation

StatusPage

ChangeLog

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: factuarea-com
name: Factuarea
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Self-serve signup
  confidence: low
  probe_state: gated
  source:
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://factuarea.com/images/og/factuarea.png
description: Factuarea provides invoicing software for freelancers and small businesses in Spain, offering electronic invoice
  creation, payment collection, and VeriFactu verification in a single platform. The web‑based solution supports multiple
  languages, integrates with Spanish tax regulations, and offers a 10‑day free trial without requiring a credit card.
url: https://artifacts.apis.io/factuarea-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-07 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-07'
modified: '2026-11-07'
tags:
- Invoicing
- Software
- Spain
- Fintech
- Software-as-a-Service
tags_raw:
- invoicing
- software
- Spain
- fintech
- SaaS
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/factuarea-com-rules.yml
- type: JSONLD
  url: json-ld/factuarea-com-context.jsonld
- type: Vocabulary
  url: vocabulary/factuarea-com-vocabulary.yml
- type: Webhooks
  url: asyncapi/factuarea-com-webhooks.yml
- type: DataModel
  url: data-model/factuarea-com-data-model.yml
- type: ChangeLog
  url: changelog/factuarea-com-changelog.yml
- type: Idempotency
  url: conventions/factuarea-com-conventions.yml
- type: Conventions
  url: conventions/factuarea-com-conventions.yml
- type: Security
  url: security/factuarea-com-vulnerability-disclosure.yml
- type: Authentication
  url: authentication/factuarea-com-authentication.yml
- type: Deprecation
  url: https://docs.factuarea.com/guides/versioning
- type: Lifecycle
  url: lifecycle/factuarea-com-lifecycle.yml
- type: Conformance
  url: conformance/factuarea-com-conformance.yml
- type: LLMsTxt
  url: llms/factuarea-com-llms.txt
- type: SecurityTxt
  url: well-known/factuarea-com-security.txt
- type: WellKnown
  url: well-known/factuarea-com-well-known.yml
- type: Hosts
  url: hosts/factuarea-com-hosts.yml
- type: Vendors
  url: vendors/factuarea-com-vendors.yml
- type: StatusPage
  url: https://status.factuarea.com/
- type: SignUp
  url: https://app.factuarea.com/signup
- type: SDKs
  url: https://www.npmjs.com/package/@factuarea/sdk
- type: GitHubOrganization
  url: https://github.com/factuarea
- type: ChangeLog
  url: https://docs.factuarea.com/changelog/launch?nav=news/all
- type: Blog
  url: https://factuarea.com/blog
- type: GettingStarted
  url: https://docs.factuarea.com/guides/quickstart
- type: Documentation
  url: https://docs.factuarea.com/
- type: DeveloperPortal
  url: https://docs.factuarea.com\
- type: APIReference
  url: https://docs.factuarea.com/api-reference/tasks/public-api.v1.tasks.create
- type: VulnerabilityDisclosure
  url: security/factuarea-com-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/factuarea-com-domain-security.yml
- type: Website
  url: https://factuarea.com/
apis:
- name: Factuarea API
  description: Factuarea provides invoicing and VeriFactu services via a web application, but no public machine‑readable API
    contract was found.
  humanURL: https://factuarea.com/en
  baseURL: null
  properties: []
  x-coverage:
    state: unreadable
    reason: js-rendered-docs
    detail: The website is a JavaScript‑rendered single‑page app with no publicly accessible OpenAPI or other contract.
    evidence:
    - url: https://factuarea.com/en
      status: 200
    checked: '2026-11-07'
  aid: factuarea-com:factuarea-api
- aid: factuarea-com:factuarea-com-api
  name: Factuarea API
  description: 'Factuarea API as documented publicly: 8 operations. Contract generated from the documentation by API Evangelist
    (2026-11-07);

    not the provider''s own document.'
  humanURL: https://docs.factuarea.com/api-reference/packs/public-api.v1.packs.list
  baseURL: https://api.factuarea.com
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/factuarea-com-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/factuarea-com-post-v1-companies01931-b3-e7-c4-a7-f2-e9-a8-b3-c5-d6-e7-f8-a01-packs-response-schema.json
  - type: JSONSchema
    url: json-schema/factuarea-com-post-v1-companies01931-b3-e7-c4-a7-f2-e9-a8-b3-c5-d6-e7-f8-a01-packs-request-schema.json
  - type: JSONSchema
    url: json-schema/factuarea-com-get-v1-companies-company-events-response-schema.json
  - type: JSONSchema
    url: json-schema/factuarea-com-get-v1-companies-company-taxes-response-schema.json
  - type: JSONSchema
    url: json-schema/factuarea-com-get-v1-companies-company-packs-response-schema.json
  - type: JSONSchema
    url: json-schema/factuarea-com-get-v1-companies-company-packs-pack-response-schema.json
x-coverage:
  state: gated
  reason: partner-login
  method: derived
  generated: '2026-11-07'
  generator: derive-coverage.py (pre-flight evidence)
  detail: the company serves an API surface but requires credentials before any description of it can be read
  evidence:
  - url: https://api.factuarea.com/mcp
    status: 401
  - url: https://factuarea.com/
    status: 200
x-enrichment:
  date: '2026-11-07'
  status: enriched
  artifacts_added: 29
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Factuarea API — frequently asked questions

Does Factuarea have an API?

Yes. APIs.io lists 2 APIs from Factuarea, including Factuarea API and Factuarea API.

Is there an OpenAPI specification for the Factuarea API?

Yes. APIs.io indexes 1 OpenAPI specification for Factuarea, each linked for download from this page.

How do I authenticate with the Factuarea API?

Factuarea uses bearer-token authentication (1 scheme). The details are profiled on APIs.io as Factuarea Authentication.

Is the Factuarea API ready for AI agents?

Factuarea has a Kin Score of 40.1 out of 100 (developing) and an Agent Readiness score of 27.6 (agent-aware), scored by API Evangelist on 2026-11-13.

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