Fuentio

Fuentio provides verification of French, Spanish and UK companies against official registers via a REST API and MCP server. It offers outcomes, reasons, source data, dates, and proof codes, enabling KYB onboarding, supplier checks, and AI agent integration. Free plan includes 100 units per month.

Fuentio publishes 14 API contracts indexed on the APIs.io network, including Companies API, Coverage API, Discovery API, and 11 more. Tagged areas include KYB, Company Verification, Compliance, Onboarding, and Procurement.

The Fuentio catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Fuentio’s developer surface includes changelog, signup flow, getting-started guide, documentation, pricing, engineering blog, and 28 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

50.0/100 developing Agent 33/100 agent ready Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemium

1 published contract 1 MCP Servers 1 Agent Skills

KYB Company Verification Compliance Onboarding Procurement

Kin Score

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

Composite quality — 50.0/100 · developing

Contract Quality 10.8 / 21

Developer Ergonomics 4.4 / 17

Access Clarity 12.7 / 17

Operational Transparency 4.2 / 11

Contract Governance 2.2 / 10

Discoverability 6.4 / 9

Regulatory Posture 4.4 / 15

Agent readiness — 33/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 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) 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 →
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented) Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →

6 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 25.6 — up to +14.9 composite points Ask about this →
Contract Quality scores 51.0 — up to +12.3 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/fuentio-com/apis.yml: open an issue on github.com/api-evangelist/fuentio-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 →

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 14

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

Fuentio Companies API

The companies API from Fuentio — 3 operation(s) for companies.

Fuentio Coverage API

The coverage API from Fuentio — 2 operation(s) for coverage.

Fuentio Discovery API

The discovery API from Fuentio — 4 operation(s) for discovery.

Fuentio Exports API

The exports API from Fuentio — 1 operation(s) for exports.

Fuentio Graph API

The graph API from Fuentio — 1 operation(s) for graph.

Fuentio Health API

The health API from Fuentio — 2 operation(s) for health.

Fuentio Issues API

The issues API from Fuentio — 1 operation(s) for issues.

Fuentio Keys API

The keys API from Fuentio — 4 operation(s) for keys.

Fuentio Proof API

The proof API from Fuentio — 3 operation(s) for proof.

Fuentio Resolve API

The resolve API from Fuentio — 5 operation(s) for resolve.

Fuentio Screening API

The screening API from Fuentio — 5 operation(s) for screening.

Fuentio supplier check API

The supplier check API from Fuentio — 11 operation(s) for supplier check.

Fuentio Verification API

The verification API from Fuentio — 2 operation(s) for verification.

Fuentio Watches API

The watches API from Fuentio — 3 operation(s) for watches.

Scroll for all 14

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Fuentio MCP Server

Remote MCP server at api.fuentio.com.

MCP SERVER

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

verify-company

AGENT SKILL

Fuentio API pricing

Prices published by Fuentio, read 2026-11-09 from fuentio.com/pricing/.

Plan	Price
Free	€0/ month
Starter	€49/ month
Growth	€149/ month
Business	€499/ month
Compliance	€999/ month
Founding Partner	€149/ month
Enterprise	Custom

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Fuentio Plans Pricing

7 plans

PLANS

Semantic Vocabularies 1

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

Fuentio Com Context

12 classes · 32 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.

Fuentio API Rules

41 rules · 29 error-severity 11 warn-severity 1 info-severity

SPECTRAL

JSON Schema 6

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

IssueRequest

3 properties

JSON SCHEMA

ItemsIn

2 properties

JSON SCHEMA

KeyRequest

3 properties

JSON SCHEMA

ResolveRequest

7 properties

JSON SCHEMA

VerifyRequest

4 properties

JSON SCHEMA

WatchRequest

2 properties

JSON SCHEMA

Security Posture 3

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

Fuentio Domain Security

TLSv1.3 · HSTS

SECURITY

Fuentio Vulnerability Disclosure

security.txt · contact published

SECURITY

Fuentio Trust Center

trust center published

SECURITY

Agentic Access (API Evangelist recommendations) 1

Recommended x-agentic-access execution contracts for AI agents.

Fuentio Agentic Access

51 operations · 16 acting · 3 human-in-the-loop

51 operations · 16 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

MCPServer

WellKnown

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Idempotency

Conventions

ErrorCatalog

Conformance

Scroll for all 8

Access & Security 7

Authentication, authorization, and security posture

Compliance

Security

SecurityTxt

SecurityTxt

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Scroll for all 7

Operate 3

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

StatusPage

StatusPage

ChangeLog

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: fuentio-com
name: Fuentio
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
image: https://fuentio.com/static/img/og-en.png
description: Fuentio provides verification of French, Spanish and UK companies against official registers via a REST API and
  MCP server. It offers outcomes, reasons, source data, dates, and proof codes, enabling KYB onboarding, supplier checks,
  and AI agent integration. Free plan includes 100 units per month.
url: https://artifacts.apis.io/fuentio-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-09 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-08'
modified: '2026-11-08'
tags:
- KYB
- Company Verification
- Compliance
- Onboarding
- Procurement
tags_raw:
- KYB
- Company verification
- Compliance
- API
- Onboarding
- Procurement
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/fuentio-com-agentic-access.yml
- type: Plans
  url: plans/fuentio-com-plans-pricing.yml
- type: Spectral
  url: rules/fuentio-com-rules.yml
- type: JSONLD
  url: json-ld/fuentio-com-context.jsonld
- type: Vocabulary
  url: vocabulary/fuentio-com-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/fuentio-com-data-model.yml
- type: ChangeLog
  url: changelog/fuentio-com-changelog.yml
- type: Idempotency
  url: conventions/fuentio-com-conventions.yml
- type: Conventions
  url: conventions/fuentio-com-conventions.yml
- type: Compliance
  url: https://fuentio.com/trust/
- type: Security
  url: https://fuentio.com/legal/notice/
- type: ErrorCatalog
  url: errors/fuentio-com-problem-types.yml
- type: Conformance
  url: conformance/fuentio-com-conformance.yml
- type: LLMsTxt
  url: llms/fuentio-com-llms.txt
- type: MCPServer
  url: mcp/fuentio-com-mcp.yml
- type: SecurityTxt
  url: well-known/fuentio-com-security.txt
- type: SecurityTxt
  url: well-known/fuentio-com-api-security.txt
- type: WellKnown
  url: well-known/fuentio-com-well-known.yml
- type: Hosts
  url: hosts/fuentio-com-hosts.yml
- type: Vendors
  url: vendors/fuentio-com-vendors.yml
- type: StatusPage
  url: https://fuentio.com/status/
- type: SignUp
  url: https://fuentio.com/blog/register-checks-before-investing/
- type: ChangeLog
  url: https://fuentio.com/changelog/
- type: GettingStarted
  url: https://fuentio.com/use-cases/kyb-onboarding/
- type: TrustCenter
  url: security/fuentio-com-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/fuentio-com-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/fuentio-com-domain-security.yml
- type: Website
  url: https://fuentio.com/
- type: Documentation
  url: https://fuentio.com/docs/
- type: Pricing
  url: https://fuentio.com/pricing/
- type: Blog
  url: https://fuentio.com/blog/
- type: TermsOfService
  url: https://fuentio.com/legal/terms/
- type: PrivacyPolicy
  url: https://fuentio.com/legal/privacy/
apis:
- aid: fuentio-com:fuentio-com-companies-api
  name: Fuentio Companies API
  description: The companies API from Fuentio — 3 operation(s) for companies.
  humanURL: https://fuentio.com/docs/
  baseURL: https://api.fuentio.com
  tags:
  - Companies
  tags_raw:
  - companies
  properties:
  - type: OpenAPI
    url: openapi/fuentio-com-companies-api-openapi.yml
- aid: fuentio-com:fuentio-com-coverage-api
  name: Fuentio Coverage API
  description: The coverage API from Fuentio — 2 operation(s) for coverage.
  humanURL: https://fuentio.com/docs/
  baseURL: https://api.fuentio.com
  tags:
  - Coverage
  tags_raw:
  - coverage
  properties:
  - type: OpenAPI
    url: openapi/fuentio-com-coverage-api-openapi.yml
- aid: fuentio-com:fuentio-com-discovery-api
  name: Fuentio Discovery API
  description: The discovery API from Fuentio — 4 operation(s) for discovery.
  humanURL: https://fuentio.com/docs/
  baseURL: https://api.fuentio.com
  tags:
  - Discovery
  tags_raw:
  - discovery
  properties:
  - type: OpenAPI
    url: openapi/fuentio-com-discovery-api-openapi.yml
- aid: fuentio-com:fuentio-com-exports-api
  name: Fuentio Exports API
  description: The exports API from Fuentio — 1 operation(s) for exports.
  humanURL: https://fuentio.com/docs/
  baseURL: https://api.fuentio.com
  tags:
  - Export
  tags_raw:
  - exports
  properties:
  - type: OpenAPI
    url: openapi/fuentio-com-exports-api-openapi.yml
- aid: fuentio-com:fuentio-com-graph-api
  name: Fuentio Graph API
  description: The graph API from Fuentio — 1 operation(s) for graph.
  humanURL: https://fuentio.com/docs/
  baseURL: https://api.fuentio.com
  tags:
  - Graph
  tags_raw:
  - graph
  properties:
  - type: OpenAPI
    url: openapi/fuentio-com-graph-api-openapi.yml
- aid: fuentio-com:fuentio-com-health-api
  name: Fuentio Health API
  description: The health API from Fuentio — 2 operation(s) for health.
  humanURL: https://fuentio.com/docs/
  baseURL: https://api.fuentio.com
  tags:
  - Health
  tags_raw:
  - health
  properties:
  - type: OpenAPI
    url: openapi/fuentio-com-health-api-openapi.yml
- aid: fuentio-com:fuentio-com-issues-api
  name: Fuentio Issues API
  description: The issues API from Fuentio — 1 operation(s) for issues.
  humanURL: https://fuentio.com/docs/
  baseURL: https://api.fuentio.com
  tags:
  - Issues
  tags_raw:
  - issues
  properties:
  - type: OpenAPI
    url: openapi/fuentio-com-issues-api-openapi.yml
  - type: JSONSchema
    url: json-schema/fuentio-com-issue-request-schema.json
- aid: fuentio-com:fuentio-com-keys-api
  name: Fuentio Keys API
  description: The keys API from Fuentio — 4 operation(s) for keys.
  humanURL: https://fuentio.com/docs/
  baseURL: https://api.fuentio.com
  tags:
  - Keys
  tags_raw:
  - keys
  properties:
  - type: OpenAPI
    url: openapi/fuentio-com-keys-api-openapi.yml
  - type: JSONSchema
    url: json-schema/fuentio-com-key-request-schema.json
- aid: fuentio-com:fuentio-com-proof-api
  name: Fuentio Proof API
  description: The proof API from Fuentio — 3 operation(s) for proof.
  humanURL: https://fuentio.com/docs/
  baseURL: https://api.fuentio.com
  tags:
  - Proof
  tags_raw:
  - proof
  properties:
  - type: OpenAPI
    url: openapi/fuentio-com-proof-api-openapi.yml
- aid: fuentio-com:fuentio-com-resolve-api
  name: Fuentio Resolve API
  description: The resolve API from Fuentio — 5 operation(s) for resolve.
  humanURL: https://fuentio.com/docs/
  baseURL: https://api.fuentio.com
  tags:
  - Resolve
  tags_raw:
  - resolve
  properties:
  - type: OpenAPI
    url: openapi/fuentio-com-resolve-api-openapi.yml
  - type: JSONSchema
    url: json-schema/fuentio-com-resolve-request-schema.json
- aid: fuentio-com:fuentio-com-screening-api
  name: Fuentio Screening API
  description: The screening API from Fuentio — 5 operation(s) for screening.
  humanURL: https://fuentio.com/docs/
  baseURL: https://api.fuentio.com
  tags:
  - Screening
  tags_raw:
  - screening
  properties:
  - type: OpenAPI
    url: openapi/fuentio-com-screening-api-openapi.yml
- aid: fuentio-com:fuentio-com-supplier-check-api
  name: Fuentio supplier check API
  description: The supplier check API from Fuentio — 11 operation(s) for supplier check.
  humanURL: https://fuentio.com/docs/
  baseURL: https://api.fuentio.com
  tags:
  - supplier check
  properties:
  - type: OpenAPI
    url: openapi/fuentio-com-supplier-check-api-openapi.yml
  - type: JSONSchema
    url: json-schema/fuentio-com-items-in-schema.json
- aid: fuentio-com:fuentio-com-verification-api
  name: Fuentio Verification API
  description: The verification API from Fuentio — 2 operation(s) for verification.
  humanURL: https://fuentio.com/docs/
  baseURL: https://api.fuentio.com
  tags:
  - Verification
  tags_raw:
  - verification
  properties:
  - type: OpenAPI
    url: openapi/fuentio-com-verification-api-openapi.yml
  - type: JSONSchema
    url: json-schema/fuentio-com-verify-request-schema.json
- aid: fuentio-com:fuentio-com-watches-api
  name: Fuentio Watches API
  description: The watches API from Fuentio — 3 operation(s) for watches.
  humanURL: https://fuentio.com/docs/
  baseURL: https://api.fuentio.com
  tags:
  - Watches
  tags_raw:
  - watches
  properties:
  - type: OpenAPI
    url: openapi/fuentio-com-watches-api-openapi.yml
  - type: JSONSchema
    url: json-schema/fuentio-com-watch-request-schema.json
x-enrichment:
  date: '2026-11-09'
  status: enriched
  artifacts_added: 29
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Fuentio API — frequently asked questions

Does Fuentio have an API?

Yes. APIs.io lists 14 APIs from Fuentio, including Fuentio Companies API, Fuentio Coverage API and Fuentio Discovery API, and 11 more.

Is there an OpenAPI specification for the Fuentio API?

Yes. APIs.io indexes 14 OpenAPI specifications for Fuentio, each linked for download from this page.

How much does the Fuentio API cost?

Fuentio publishes its prices; its Free plan is €0/ month as of 2026-11-09. APIs.io lists 7 pricing plans for Fuentio, with each plan's price, limits and inclusions under Pricing on this page.

Does Fuentio have an MCP server?

Yes. APIs.io lists 1 MCP server for Fuentio: Remote MCP server at api.fuentio.com.

Is the Fuentio API ready for AI agents?

Fuentio has a Kin Score of 50.0 out of 100 (developing) and an Agent Readiness score of 32.8 (agent-ready), scored by API Evangelist on 2026-11-13.

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