Keynua

Keynua is a Latin American digital identity and electronic signature platform that lets businesses design signing flows combining video, drawn, OTP, and digital signatures with biometric identity verification — liveness detection, facial matching, 3D and selfie identification, and geopositioning. Its REST API covers contracts, document templates, identity verification, OTP, and Deceval promissory notes, delivering requests to signers over WhatsApp, SMS, or email and emitting webhooks for asynchronous processing events. It supports 20+ Latin American identity documents across 20 countries and serves financial services, real estate, human resources, commercial contracts, and sports betting.

Keynua publishes 1 API on the APIs.io network. Tagged areas include Company, Electronic Signature, Digital Signature, Identity Verification, and Biometrics.

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

Keynua’s developer surface includes documentation, API reference, getting-started guide, pricing, signup flow, authentication, sandbox, and 16 more developer resources.

🌐 Visit website 📡 Source on GitHub

42.1/100 developing ▬ flat Agent 24/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Company Electronic Signature Digital Signature Identity Verification Biometrics KYC Onboarding OTP Webhook Latin America

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 42.1/100 · developing

Contract Quality 10.4 / 25

Developer Ergonomics 11.8 / 20

Access Clarity 8.9 / 20

Operational Transparency 3.4 / 13

Contract Governance 0.0 / 12

Discoverability 7.6 / 10

Agent readiness — 24/100 · 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 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

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.

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/keynua: 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 1

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

Keynua API

REST API for creating contracts, sending them to signers over WhatsApp/SMS/email, running biometric identity verification, generating documents from templates, sending and verif...

Event Specifications 1

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

Keynua Webhooks

ASYNCAPI

Security Posture 2

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

Keynua Authentication

apiKey · 2 schemes

SECURITY

Keynua Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 5

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Sandbox

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Lifecycle

ErrorCatalog

Conventions

Webhooks

DataModel

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

StatusPage

StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: keynua
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/keynua.png
name: Keynua
description: Keynua is a Latin American digital identity and electronic signature platform that lets businesses design signing
  flows combining video, drawn, OTP, and digital signatures with biometric identity verification — liveness detection, facial
  matching, 3D and selfie identification, and geopositioning. Its REST API covers contracts, document templates, identity
  verification, OTP, and Deceval promissory notes, delivering requests to signers over WhatsApp, SMS, or email and emitting
  webhooks for asynchronous processing events. It supports 20+ Latin American identity documents across 20 countries and serves
  financial services, real estate, human resources, commercial contracts, and sports betting.
url: https://raw.githubusercontent.com/api-evangelist/keynua/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- point-nine
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Electronic Signature
- Digital Signature
- Identity Verification
- Biometrics
- KYC
- Onboarding
- OTP
- Webhook
- Latin America
tags_raw:
- Company
- Electronic Signature
- Digital Signature
- Identity Verification
- Biometrics
- KYC
- Onboarding
- OTP
- Webhooks
- Latin America
apis:
- name: Keynua API
  description: REST API for creating contracts, sending them to signers over WhatsApp/SMS/email, running biometric identity
    verification, generating documents from templates, sending and verifying OTPs, and registering Deceval promissory notes.
    Requests are authenticated with x-api-key + authorization header secrets against staging (api.stg.keynua.com) or production
    (api.keynua.com).
  humanURL: https://keynua.github.io/slate
  baseURL: https://api.keynua.com
  tags:
  - Electronic Signature
  - Identity Verification
  - Contracts
  - OTP
  properties:
  - type: Documentation
    url: https://keynua.github.io/slate
  - type: APIReference
    url: https://keynua.github.io/slate
  - type: GettingStarted
    url: https://keynua.github.io/slate/#introduction
  - type: StagingBaseURL
    url: https://api.stg.keynua.com
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/keynua-domain-security.yml
- type: Website
  url: https://www.keynua.com/en
- type: DeveloperPortal
  url: https://keynua.github.io/slate
- type: Documentation
  url: https://keynua.github.io/slate
- type: APIReference
  url: https://keynua.github.io/slate
- type: GettingStarted
  url: https://keynua.github.io/slate/#introduction
- type: Pricing
  url: https://www.keynua.com/en/plans/
- type: SignUp
  url: https://www.keynua.com/en/account-request/
- type: Login
  url: https://app.keynua.com?lang=en
- type: TermsOfService
  url: https://www.keynua.com/en/legal/terms-and-conditions/
- type: PrivacyPolicy
  url: https://www.keynua.com/en/legal/privacy-policy/
- type: GitHubOrganization
  url: https://github.com/Keynua
- type: StatusPage
  url: https://status.keynua.com
- type: Lifecycle
  url: lifecycle/keynua-lifecycle.yml
- type: Authentication
  url: authentication/keynua-authentication.yml
- type: ErrorCatalog
  url: errors/keynua-error-codes.yml
- type: Conventions
  url: conventions/keynua-conventions.yml
- type: Webhooks
  url: asyncapi/keynua-webhooks.yml
- type: X-MCPServerCandidate
  url: mcp/keynua-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: LLMsTxt
  url: llms/keynua-llms.txt
- type: Sandbox
  url: sandbox/keynua-sandbox.yml
- type: DataModel
  url: data-model/keynua-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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