Certifaction

Certifaction is a privacy-first digital signature platform built around a Zero Document Knowledge model: documents are hashed and end-to-end encrypted on the client so they can be signed and verified without Certifaction ever seeing their content. It offers Simple, Advanced, and Qualified Electronic Signatures (SES/AES/QES) compliant with eIDAS, ZertES, UETA and ESIGN, delivered through a client-hosted CLI and Local API plus an Admin API for organization, user, role and team-space management, with EU / Switzerland / on-premises data residency and ISO/IEC 27001:2022 certification.

Certifaction publishes 6 APIs on the APIs.io network, including Account API, Documents API, Organization API, and 3 more. Tagged areas include Company, Ai Enterprise Software, Electronic Signature, Digital Signature, and Document Signing.

The Certifaction catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Certifaction’s developer surface includes documentation, API reference, getting-started guide, engineering blog, pricing, signup flow, authentication, and 26 more developer resources.

🌐 Visit website 📡 Source on GitHub

51.1/100 developing ▬ flat Agent 27/100 agent aware saas Full breakdown ↓
scored 2026-09-06 · rubric v0.19.0

AccessSelf serve

2 APIs

Company Ai Enterprise Software Electronic Signature Digital Signature Document SigningQualified Electronic SignatureeIDAS Privacy Compliance Identity Verification Switzerland

Kin Score

Kin Score How this is scored →
scored 2026-09-06 · rubric v0.19.0

Composite quality — 51.1/100 · developing

Contract Quality 13.4 / 25

Developer Ergonomics 13.7 / 20

Access Clarity 10.8 / 20

Operational Transparency 3.4 / 13

Contract Governance 2.2 / 12

Discoverability 7.6 / 10

Agent readiness — 27/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 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

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 github.com/api-evangelist/certifaction: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 6

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

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

OpenAPI

OpenAPI

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

AgentSkill

LLMsTxt

AgenticAccess

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Components

Webhooks

Conventions

ErrorCatalog

Lifecycle

DataModel

Conformance

Scroll for all 7

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 4

Authentication, authorization, and security posture

Authentication

Compliance

TrustCenter

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: certifaction
name: Certifaction
description: 'Certifaction is a privacy-first digital signature platform built around a Zero Document Knowledge model: documents
  are hashed and end-to-end encrypted on the client so they can be signed and verified without Certifaction ever seeing their
  content. It offers Simple, Advanced, and Qualified Electronic Signatures (SES/AES/QES) compliant with eIDAS, ZertES, UETA
  and ESIGN, delivered through a client-hosted CLI and Local API plus an Admin API for organization, user, role and team-space
  management, with EU / Switzerland / on-premises data residency and ISO/IEC 27001:2022 certification.'
url: https://raw.githubusercontent.com/api-evangelist/certifaction/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- hv-capital
- seedcamp
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
image: https://developers.certifaction.com/themes/certifaction/logo.svg
tags:
- Company
- Ai Enterprise Software
- Electronic Signature
- Digital Signature
- Document Signing
- Qualified Electronic Signature
- eIDAS
- Privacy
- Compliance
- Identity Verification
- Switzerland
apis:
- aid: certifaction:certifaction-account-api
  name: Certifaction Account API
  description: Access your user account data
  humanURL: https://developers.certifaction.com/en/references/api
  baseURL: https://api.certifaction.io
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/certifaction-account-api-openapi.yml
- aid: certifaction:certifaction-documents-api
  name: Certifaction Documents API
  description: Download your documents or remove {{ .ProductName }}'s access to them
  humanURL: https://developers.certifaction.com/en/references/api
  baseURL: https://api.certifaction.io
  tags:
  - Documents
  properties:
  - type: OpenAPI
    url: openapi/certifaction-documents-api-openapi.yml
- aid: certifaction:certifaction-organization-api
  name: Certifaction Organization API
  description: Manage your organization, users, and roles.
  humanURL: https://developers.certifaction.com/en/references/api
  baseURL: https://api.certifaction.io
  tags:
  - Organization
  properties:
  - type: OpenAPI
    url: openapi/certifaction-organization-api-openapi.yml
- aid: certifaction:certifaction-server-api
  name: Certifaction Server API
  description: Check the server's status
  humanURL: https://developers.certifaction.com/en/references/api
  baseURL: https://api.certifaction.io
  tags:
  - Server
  properties:
  - type: OpenAPI
    url: openapi/certifaction-server-api-openapi.yml
- aid: certifaction:certifaction-signing-api
  name: Certifaction Signing API
  description: Sign files and request signatures
  humanURL: https://developers.certifaction.com/en/references/api
  baseURL: https://api.certifaction.io
  tags:
  - Signing
  properties:
  - type: OpenAPI
    url: openapi/certifaction-signing-api-openapi.yml
- aid: certifaction:certifaction-teamspace-api
  name: Certifaction Teamspace API
  description: Manage teamspaces and their members.
  humanURL: https://developers.certifaction.com/en/references/api
  baseURL: https://api.certifaction.io
  tags:
  - Teamspace
  properties:
  - type: OpenAPI
    url: openapi/certifaction-teamspace-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/certifaction-admin-api-overlay.yaml
- type: Website
  url: https://certifaction.com
- type: DeveloperPortal
  url: https://developers.certifaction.com/en/
- type: Documentation
  url: https://developers.certifaction.com/en/guides/about
- type: APIReference
  url: https://developers.certifaction.com/en/references/api
- type: GettingStarted
  url: https://developers.certifaction.com/en/guides/getting-started-api
- type: Blog
  url: https://certifaction.com/content-hub/
- type: GitHubOrganization
  url: https://github.com/certifaction
- type: Pricing
  url: https://certifaction.com/pricing/
- type: SignUp
  url: https://app.certifaction.io/signup/
- type: Login
  url: https://app.certifaction.io/login
- type: TermsOfService
  url: https://certifaction.com/terms-and-conditions/
- type: PrivacyPolicy
  url: https://certifaction.com/privacy-policy/
- type: Authentication
  url: authentication/certifaction-authentication.yml
- type: OpenAPI
  url: openapi/_original/certifaction-local-api-openapi.yml
- type: Packages
  url: packages/certifaction-packages.yml
- type: SDKs
  url: packages/certifaction-packages.yml
- type: CLI
  url: cli/certifaction-cli.yml
- type: Components
  url: components/certifaction-components.yml
- type: X-MCPServerCandidate
  url: mcp/certifaction-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/certifaction-llms.txt
- type: Webhooks
  url: asyncapi/certifaction-webhooks.yml
- type: Conventions
  url: conventions/certifaction-conventions.yml
- type: ErrorCatalog
  url: errors/certifaction-problem-types.yml
- type: Lifecycle
  url: lifecycle/certifaction-lifecycle.yml
- type: ChangeLog
  url: changelog/certifaction-changelog.yml
- type: DataModel
  url: data-model/certifaction-data-model.yml
- type: Conformance
  url: conformance/certifaction-conformance.yml
- type: Compliance
  url: https://certifaction.com/security-esigning-and-data/
- type: TrustCenter
  url: security/certifaction-trust-center.yml
- type: DomainSecurity
  url: security/certifaction-domain-security.yml
- type: AgenticAccess
  url: agentic-access/certifaction-agentic-access.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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