Sadq Holding Limited

Sadq (صادق) is a Saudi Arabian electronic-signature and digital-trust platform that lets businesses send, sign, and manage legally binding documents online. Its Integration API covers signing envelopes and document packages, signing invitations (email/SMS/link), direct and template-based signing, PKI/e-signing via Saudi Arabia's Nafath national digital identity, document download, reusable templates, users and permissions, signing workflows, webhooks, KYB business verification (commercial-registration checks, Absher OTP, delegacy and national-address lookups), archiving, delegations, and consumption reporting. The platform is fully agent-native — it publishes an OpenAPI schema, an RFC 9727 API catalog, OAuth 2.0 / OIDC discovery metadata, an llms.txt, an auth.md agent-registration guide, and a hosted MCP server. Sadq is a 500 Global portfolio company.

Sadq Holding Limited publishes 14 APIs on the APIs.io network, including Archiving & Delegations API, Authentication API, Configuration API, and 11 more. Tagged areas include Company, E-Signature, Digital Signature, Identity, and KYB.

The Sadq Holding Limited catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Sadq Holding Limited’s developer surface includes documentation, API reference, quickstart, signup flow, support, authentication, sandbox, and 20 more developer resources.

🌐 Visit website 📡 Source on GitHub

35.8/100 thin ▬ flat Agent 50/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessSelf serve

1 APIs 1 MCP Servers

Company E-Signature Digital Signature Identity KYB Document-Management Saudi ArabiaNafathWebhook Agent Ready

Kin Score

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

Composite quality — 35.8/100 · thin

Contract Quality 13.1 / 23

Developer Ergonomics 11.5 / 18

Access Clarity 0.0 / 18

Operational Transparency 0.9 / 12

Contract Governance 0.5 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 50/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

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/sadq-holding-limited: 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 14

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

Sadq Holding Limited Archiving & Delegations API

File archiving categories and delegation management

Sadq Holding Limited Authentication API

Obtain and manage API access tokens

Sadq Holding Limited Configuration API

Update tenant SMS provider and system configuration

Sadq Holding Limited Documents API

Download and manage signed document files

Sadq Holding Limited Envelopes API

Initiate and manage signing envelopes and document packages

Sadq Holding Limited eSign API

Electronic and digital signature operations via Nafath/PKI

Sadq Holding Limited Invitations API

Send, extend, and remind signing invitations

Sadq Holding Limited KYB API

Know Your Business — CR checks, Absher OTP, delegacy lookups

Sadq Holding Limited Reports & Requests API

Consumption reports, request listings and bulk signature jobs

Sadq Holding Limited Sign API

Direct signing operations including multi-file and templates

Sadq Holding Limited Templates API

List and retrieve reusable signing templates

Sadq Holding Limited Users API

User management, permissions and signature uploads

Sadq Holding Limited Webhooks API

Configure and manage webhook subscriptions and logs

Sadq Holding Limited Workflows API

Create and manage document signing workflows

Scroll for all 14

Open Collections 15

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Sadq Integration Archiving & Delegations API

OPEN COLLECTION

Sadq Integration Archiving & Delegations Authentication API

OPEN COLLECTION

Sadq Integration Archiving & Delegations Configuration API

OPEN COLLECTION

Sadq Integration Archiving & Delegations Documents API

OPEN COLLECTION

Sadq Integration Archiving & Delegations Envelopes API

OPEN COLLECTION

Sadq Integration Archiving & Delegations eSign API

OPEN COLLECTION

Sadq Integration Archiving & Delegations Invitations API

OPEN COLLECTION

Sadq Integration Archiving & Delegations KYB API

OPEN COLLECTION

Sadq Integration Archiving & Delegations Reports & Requests API

OPEN COLLECTION

Sadq Integration Archiving & Delegations Sign API

OPEN COLLECTION

Sadq Integration Archiving & Delegations Templates API

OPEN COLLECTION

Sadq Integration Archiving & Delegations Users API

OPEN COLLECTION

Sadq Integration Archiving & Delegations Webhooks API

OPEN COLLECTION

Sadq Integration Archiving & Delegations Workflows API

OPEN COLLECTION

Scroll for all 15

MCP Servers 1

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

Sadq Holding Limited MCP Server

MCP server exposing the Sadq e-signature platform API. Supports creating envelopes, managing signatories, sending documents for signature, querying webhook logs, and more.

MCP SERVER

Event Specifications 1

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

Sadq Holding Limited Webhooks

ASYNCAPI

Security Posture 2

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

Sadq Holding Limited Authentication

oauth2/http · 2 schemes

SECURITY

Sadq Holding Limited Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Sadq Holding Limited Scopes

4 scopes

SCOPES

Agentic Access 1

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

Sadq Holding Limited Agentic Access

65 operations · 43 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

Quickstart

SignUp

Sandbox

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

OpenAPI

OpenAPI

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

MCPServer

WellKnown

AgenticAccess

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Webhooks

ErrorCatalog

Lifecycle

Conventions

Conformance

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 3

Properties that don't map to a standard resource type

APICatalog

APICatalog

OpenIDConnect

OpenIDConnect

Overlay

Overlay

Source (apis.yml)

aid: sadq-holding-limited
name: Sadq Holding Limited
description: Sadq (صادق) is a Saudi Arabian electronic-signature and digital-trust platform that lets businesses send, sign,
  and manage legally binding documents online. Its Integration API covers signing envelopes and document packages, signing
  invitations (email/SMS/link), direct and template-based signing, PKI/e-signing via Saudi Arabia's Nafath national digital
  identity, document download, reusable templates, users and permissions, signing workflows, webhooks, KYB business verification
  (commercial-registration checks, Absher OTP, delegacy and national-address lookups), archiving, delegations, and consumption
  reporting. The platform is fully agent-native — it publishes an OpenAPI schema, an RFC 9727 API catalog, OAuth 2.0 / OIDC
  discovery metadata, an llms.txt, an auth.md agent-registration guide, and a hosted MCP server. Sadq is a 500 Global portfolio
  company.
url: https://raw.githubusercontent.com/api-evangelist/sadq-holding-limited/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: profiled
x-tier-reason: enriched-from-live-api
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  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
image: https://sadq.sa/favicon.ico
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- E-Signature
- Digital Signature
- Identity
- KYB
- Document-Management
- Saudi Arabia
- Nafath
- Webhook
- Agent Ready
tags_raw:
- Company
- E-Signature
- Digital Signature
- Identity
- KYB
- Document Management
- Saudi Arabia
- Nafath
- Webhooks
- Agent Ready
apis:
- aid: sadq-holding-limited:sadq-holding-limited-archiving-delegations-api
  name: Sadq Holding Limited Archiving & Delegations API
  description: File archiving categories and delegation management
  humanURL: https://docs.sadq.sa/docs
  baseURL: https://api.sadq.sa
  tags:
  - Archiving & Delegations
  properties:
  - type: OpenAPI
    url: openapi/sadq-holding-limited-archiving-delegations-api-openapi.yml
  - type: APIReference
    url: https://docs.sadq.sa/docs
- aid: sadq-holding-limited:sadq-holding-limited-authentication-api
  name: Sadq Holding Limited Authentication API
  description: Obtain and manage API access tokens
  humanURL: https://docs.sadq.sa/docs
  baseURL: https://api.sadq.sa
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/sadq-holding-limited-authentication-api-openapi.yml
  - type: APIReference
    url: https://docs.sadq.sa/docs
- aid: sadq-holding-limited:sadq-holding-limited-configuration-api
  name: Sadq Holding Limited Configuration API
  description: Update tenant SMS provider and system configuration
  humanURL: https://docs.sadq.sa/docs
  baseURL: https://api.sadq.sa
  tags:
  - Configuration
  properties:
  - type: OpenAPI
    url: openapi/sadq-holding-limited-configuration-api-openapi.yml
  - type: APIReference
    url: https://docs.sadq.sa/docs
- aid: sadq-holding-limited:sadq-holding-limited-documents-api
  name: Sadq Holding Limited Documents API
  description: Download and manage signed document files
  humanURL: https://docs.sadq.sa/docs
  baseURL: https://api.sadq.sa
  tags:
  - Documents
  properties:
  - type: OpenAPI
    url: openapi/sadq-holding-limited-documents-api-openapi.yml
  - type: APIReference
    url: https://docs.sadq.sa/docs
- aid: sadq-holding-limited:sadq-holding-limited-envelopes-api
  name: Sadq Holding Limited Envelopes API
  description: Initiate and manage signing envelopes and document packages
  humanURL: https://docs.sadq.sa/docs
  baseURL: https://api.sadq.sa
  tags:
  - Envelopes
  properties:
  - type: OpenAPI
    url: openapi/sadq-holding-limited-envelopes-api-openapi.yml
  - type: APIReference
    url: https://docs.sadq.sa/docs
- aid: sadq-holding-limited:sadq-holding-limited-esign-api
  name: Sadq Holding Limited eSign API
  description: Electronic and digital signature operations via Nafath/PKI
  humanURL: https://docs.sadq.sa/docs
  baseURL: https://api.sadq.sa
  tags:
  - eSign
  properties:
  - type: OpenAPI
    url: openapi/sadq-holding-limited-esign-api-openapi.yml
  - type: APIReference
    url: https://docs.sadq.sa/docs
- aid: sadq-holding-limited:sadq-holding-limited-invitations-api
  name: Sadq Holding Limited Invitations API
  description: Send, extend, and remind signing invitations
  humanURL: https://docs.sadq.sa/docs
  baseURL: https://api.sadq.sa
  tags:
  - Invitations
  properties:
  - type: OpenAPI
    url: openapi/sadq-holding-limited-invitations-api-openapi.yml
  - type: APIReference
    url: https://docs.sadq.sa/docs
- aid: sadq-holding-limited:sadq-holding-limited-kyb-api
  name: Sadq Holding Limited KYB API
  description: Know Your Business — CR checks, Absher OTP, delegacy lookups
  humanURL: https://docs.sadq.sa/docs
  baseURL: https://api.sadq.sa
  tags:
  - KYB
  properties:
  - type: OpenAPI
    url: openapi/sadq-holding-limited-kyb-api-openapi.yml
  - type: APIReference
    url: https://docs.sadq.sa/docs
- aid: sadq-holding-limited:sadq-holding-limited-reports-requests-api
  name: Sadq Holding Limited Reports & Requests API
  description: Consumption reports, request listings and bulk signature jobs
  humanURL: https://docs.sadq.sa/docs
  baseURL: https://api.sadq.sa
  tags:
  - Reports & Requests
  properties:
  - type: OpenAPI
    url: openapi/sadq-holding-limited-reports-requests-api-openapi.yml
  - type: APIReference
    url: https://docs.sadq.sa/docs
- aid: sadq-holding-limited:sadq-holding-limited-sign-api
  name: Sadq Holding Limited Sign API
  description: Direct signing operations including multi-file and templates
  humanURL: https://docs.sadq.sa/docs
  baseURL: https://api.sadq.sa
  tags:
  - Sign
  properties:
  - type: OpenAPI
    url: openapi/sadq-holding-limited-sign-api-openapi.yml
  - type: APIReference
    url: https://docs.sadq.sa/docs
- aid: sadq-holding-limited:sadq-holding-limited-templates-api
  name: Sadq Holding Limited Templates API
  description: List and retrieve reusable signing templates
  humanURL: https://docs.sadq.sa/docs
  baseURL: https://api.sadq.sa
  tags:
  - Templates
  properties:
  - type: OpenAPI
    url: openapi/sadq-holding-limited-templates-api-openapi.yml
  - type: APIReference
    url: https://docs.sadq.sa/docs
- aid: sadq-holding-limited:sadq-holding-limited-users-api
  name: Sadq Holding Limited Users API
  description: User management, permissions and signature uploads
  humanURL: https://docs.sadq.sa/docs
  baseURL: https://api.sadq.sa
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/sadq-holding-limited-users-api-openapi.yml
  - type: APIReference
    url: https://docs.sadq.sa/docs
- aid: sadq-holding-limited:sadq-holding-limited-webhooks-api
  name: Sadq Holding Limited Webhooks API
  description: Configure and manage webhook subscriptions and logs
  humanURL: https://docs.sadq.sa/docs
  baseURL: https://api.sadq.sa
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/sadq-holding-limited-webhooks-api-openapi.yml
  - type: APIReference
    url: https://docs.sadq.sa/docs
- aid: sadq-holding-limited:sadq-holding-limited-workflows-api
  name: Sadq Holding Limited Workflows API
  description: Create and manage document signing workflows
  humanURL: https://docs.sadq.sa/docs
  baseURL: https://api.sadq.sa
  tags:
  - Workflows
  properties:
  - type: OpenAPI
    url: openapi/sadq-holding-limited-workflows-api-openapi.yml
  - type: APIReference
    url: https://docs.sadq.sa/docs
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://sadq.sa
- type: DeveloperPortal
  url: https://docs.sadq.sa/docs
- type: Documentation
  url: https://docs.sadq.sa/docs
- type: APIReference
  url: https://docs.sadq.sa/api/schema
- type: Quickstart
  url: https://docs.sadq.sa/auth.md
- type: SignUp
  url: https://sadq.sa/register
- type: TermsOfService
  url: https://sadq.sa/terms
- type: PrivacyPolicy
  url: https://sadq.sa/privacy
- type: Support
  url: mailto:support@sadq.sa
- type: OpenAPI
  url: openapi/_original/sadq-holding-limited-openapi-original.json
- type: LLMsTxt
  url: llms/sadq-holding-limited-llms.txt
- type: MCPServer
  url: mcp/sadq-holding-limited-mcp.yml
- type: WellKnown
  url: well-known/sadq-holding-limited-well-known.yml
- type: APICatalog
  url: well-known/sadq-holding-limited-api-catalog.json
- type: Authentication
  url: authentication/sadq-holding-limited-authentication.yml
- type: OAuthScopes
  url: scopes/sadq-holding-limited-scopes.yml
- type: OpenIDConnect
  url: well-known/sadq-holding-limited-openid-configuration.json
- type: Webhooks
  url: asyncapi/sadq-holding-limited-webhooks.yml
- type: ErrorCatalog
  url: errors/sadq-holding-limited-problem-types.yml
- type: Lifecycle
  url: lifecycle/sadq-holding-limited-lifecycle.yml
- type: Conventions
  url: conventions/sadq-holding-limited-conventions.yml
- type: Conformance
  url: conformance/sadq-holding-limited-conformance.yml
- type: Sandbox
  url: sandbox/sadq-holding-limited-sandbox.yml
- type: Overlay
  url: overlays/sadq-holding-limited-openapi-original-overlay.yaml
- type: AgenticAccess
  url: agentic-access/sadq-holding-limited-agentic-access.yml
- type: DomainSecurity
  url: security/sadq-holding-limited-domain-security.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 25
  pass: local-v1

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