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
48.0/100 developing ▬ flat Agent 75/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
14 APIs 1 MCP Servers
CompanyE-SignatureDigital SignatureIdentityKYBDocument ManagementSaudi ArabiaNafathWebhooksAgent Ready

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 48.0/100 · developing
Contract Quality 15.8 / 25
Developer Ergonomics 14.3 / 20
Commercial Clarity 6.8 / 20
Operational Transparency 1.0 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 75/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 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 4 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. 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. Want it done for you? Prioritized profiling — $2,500 →

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

MCP Servers 1

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

sadq-holding-limited-mcp.yml

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

4 scopes

SCOPES

Agentic Access 1

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

Sadq Holding Limited Agentic Access

65 operations · 43 acting

65 operations · 43 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 Quickstart
Quickstart
 SignUp
SignUp
 Sandbox
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
LLMsTxt
 MCPServer
MCPServer
 WellKnown
WellKnown
 AgenticAccess
AgenticAccess
 AgentSkill
AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Webhooks
Webhooks
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conventions
Conventions
 Conformance
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)

apis.yml Raw ↑ 
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
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: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- 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:
  - 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:
  - 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/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