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 is listed with 1 API on the APIs.io network. Tagged areas include Company, E-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 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

49.3/100 developing ▬ flat Agent 24/100 agent aware Front door AI 1/6 silent Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

1 API 3 Agent Skills

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

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 49.3/100 · developing

Contract Quality 8.3 / 21

Developer Ergonomics 10.0 / 17

Access Clarity 14.3 / 17

Operational Transparency 2.9 / 11

Contract Governance 0.0 / 10

Discoverability 6.2 / 9

Regulatory Posture 2.8 / 15

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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the AI & Biometrics 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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

8 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 39.0 — up to +15.3 composite points
Contract Governance scores 0.0 — up to +12.0 composite points
Operational Transparency scores 26.3 — up to +9.6 composite points

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.

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/keynua/apis.yml: open an issue on github.com/api-evangelist/keynua 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Biometrics Testing (biometric recognition vendors, identity verification depth)	undeclared	-	-	-
PDF and Document Standards (PDF tooling, document signing trust, invoice documents)	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

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...

Agent Skills 3

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

Create and sign a Keynua contract

AGENT SKILL

Send and verify a Keynua OTP

AGENT SKILL

Run a Keynua identity verification

AGENT SKILL

Keynua API pricing

Prices published by Keynua, read 2026-10-28 from www.keynua.com/en/plans/.

Plan	Price
Pack 10	$18.00 Includes: Valid for 10 transactions
Pack 20	$32.00 Includes: Valid for 20 transactions
Pack 50	$75.00 Includes: Valid for 50 transactions
Pack 100	$145.00 Includes: Valid for 100 transactions
Pack 200	$275.00 Includes: Valid for 200 transactions
Pack 500	$680.00 Includes: Valid for 500 transactions
Pack 1000	$1080.00 Includes: Valid for 1000 transactions

Plan details, limits and sources →

Billed by: transaction pack · FinOps profile →

Pricing Plans 1

Published pricing tiers and plan structures.

Keynua Plans Pricing

7 plans

PLANS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Keynua Finops

FINOPS

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 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

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: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: high
  source:
  - plans
  - authentication
  - security
  - sandbox
  generated: '2026-11-06'
  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
- E-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:
  - E-Signature
  - Identity Verification
  - Contracts
  - OTP
  tags_raw:
  - 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: Plans
  url: plans/keynua-plans-pricing.yml
- 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

Keynua API — frequently asked questions

Does Keynua have an API?

Yes. APIs.io lists 1 API from Keynua, including Keynua API.

How do I authenticate with the Keynua API?

Keynua uses bearer-token authentication (apiKey · 2 schemes). The details are profiled on APIs.io as Keynua Authentication.

How much does the Keynua API cost?

Keynua publishes its prices; its Pack 10 plan is $18.00 as of 2026-10-28. APIs.io lists 7 pricing plans for Keynua, with each plan's price, limits and inclusions under Pricing on this page.

Is the Keynua API ready for AI agents?

Keynua has a Kin Score of 49.3 out of 100 (developing) and an Agent Readiness score of 23.6 (agent-aware), scored by API Evangelist on 2026-11-06.

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