Keynua

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 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).

GitHub

Documentation

📖
Documentation
https://keynua.github.io/slate
📖
APIReference
https://keynua.github.io/slate
📖
GettingStarted
https://keynua.github.io/slate/#introduction

Other Resources

🔗
StagingBaseURL
https://api.stg.keynua.com
🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/keynua/refs/heads/main/apis.yml

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/keynua-api"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

API entry from apis.yml

apis.yml Raw ↑ 
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