Signaturely

Signaturely is simple electronic signature software for sending, signing, and managing legally binding documents online. Beyond the web app, Signaturely offers a documented public REST API (base https://api.signaturely.com/api/v1) gated behind separately billed API plans (Gold, Platinum, Titanium). The API is authenticated with an API key ("Authorization: Api-Key {API_KEY}") issued from the account API settings, with OAuth, embedded signing, and embedded requesting available on higher tiers. It lets developers send signature requests from templates, bulk-send from CSV data, manage documents (list, download, share, send reminders, revert, activity), manage templates and folders, manage team members, and subscribe to webhooks for document events. There is no separate "contacts" resource; signers are supplied inline on each signature request.

Signaturely publishes 7 APIs on the APIs.io network, including Documents API, Folders API, Signature Requests API, and 4 more. Tagged areas include Electronic Signature, eSignature, Document Signing, E-Signature API, and Contracts.

Signaturely’s developer surface includes authentication, documentation, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub
38.1/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFreemiumSelf serve⚡ Free to try
7 APIs
Electronic SignatureeSignatureDocument SigningE-Signature APIContractsSignature RequestsSaaS

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 38.1/100 · thin
Contract Quality 13.5 / 25
Developer Ergonomics 5.2 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.1 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
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/signaturely: 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 7

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

Signaturely Documents API

List, download, share, remind on, and manage documents.

Signaturely Folders API

Organize documents and folders.

Signaturely Signature Requests API

Create signature requests from templates and bulk-send from CSV data.

Signaturely Team API

Manage team members and roles.

Signaturely Templates API

Work with reusable templates.

Signaturely User API

Account information for the authenticated API key.

Signaturely Webhooks API

Subscribe to document lifecycle events.

Scroll for all 7

Pricing Plans 1

Published pricing tiers and plan structures.

Signaturely Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Signaturely Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Signaturely Finops

FINOPS

Security Posture 2

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

Signaturely Authentication

apiKey · 1 scheme

SECURITY

Signaturely Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Signaturely Agentic Access

27 operations · 15 acting

27 operations · 15 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 2

Status, limits, changes, and where to get help

HelpCenter
HelpCenter
 RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

APIOverview
APIOverview

Source (apis.yml)

apis.yml Raw ↑ 
aid: signaturely
url: https://raw.githubusercontent.com/api-evangelist/signaturely/refs/heads/main/apis.yml
name: Signaturely
kind: company
description: 'Signaturely is simple electronic signature software for sending, signing, and managing legally binding documents
  online. Beyond the web app, Signaturely offers a documented public REST API (base https://api.signaturely.com/api/v1) gated
  behind separately billed API plans (Gold, Platinum, Titanium). The API is authenticated with an API key ("Authorization:
  Api-Key {API_KEY}") issued from the account API settings, with OAuth, embedded signing, and embedded requesting available
  on higher tiers. It lets developers send signature requests from templates, bulk-send from CSV data, manage documents (list,
  download, share, send reminders, revert, activity), manage templates and folders, manage team members, and subscribe to
  webhooks for document events. There is no separate "contacts" resource; signers are supplied inline on each signature request.'
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/signaturely.png
tags:
- Electronic Signature
- eSignature
- Document Signing
- E-Signature API
- Contracts
- Signature Requests
- SaaS
created: '2026-07-03'
modified: '2026-07-03'
specificationVersion: '0.19'
apis:
- aid: signaturely:signaturely-documents-api
  name: Signaturely Documents API
  description: List, download, share, remind on, and manage documents.
  humanURL: https://docs.signaturely.com/
  baseURL: https://api.signaturely.com/api/v1
  tags:
  - Documents
  properties:
  - type: OpenAPI
    url: openapi/signaturely-documents-api-openapi.yml
  - type: Overview
    url: https://signaturely.com/api
  - type: Documentation
    url: https://docs.signaturely.com/
- aid: signaturely:signaturely-folders-api
  name: Signaturely Folders API
  description: Organize documents and folders.
  humanURL: https://docs.signaturely.com/
  baseURL: https://api.signaturely.com/api/v1
  tags:
  - Folders
  properties:
  - type: OpenAPI
    url: openapi/signaturely-folders-api-openapi.yml
  - type: Overview
    url: https://signaturely.com/api
  - type: Documentation
    url: https://docs.signaturely.com/
- aid: signaturely:signaturely-signature-requests-api
  name: Signaturely Signature Requests API
  description: Create signature requests from templates and bulk-send from CSV data.
  humanURL: https://docs.signaturely.com/
  baseURL: https://api.signaturely.com/api/v1
  tags:
  - Signature Requests
  properties:
  - type: OpenAPI
    url: openapi/signaturely-signature-requests-api-openapi.yml
  - type: Overview
    url: https://signaturely.com/api
  - type: Documentation
    url: https://docs.signaturely.com/
- aid: signaturely:signaturely-team-api
  name: Signaturely Team API
  description: Manage team members and roles.
  humanURL: https://docs.signaturely.com/
  baseURL: https://api.signaturely.com/api/v1
  tags:
  - Team
  properties:
  - type: OpenAPI
    url: openapi/signaturely-team-api-openapi.yml
  - type: Overview
    url: https://signaturely.com/api
  - type: Documentation
    url: https://docs.signaturely.com/
- aid: signaturely:signaturely-templates-api
  name: Signaturely Templates API
  description: Work with reusable templates.
  humanURL: https://docs.signaturely.com/
  baseURL: https://api.signaturely.com/api/v1
  tags:
  - Templates
  properties:
  - type: OpenAPI
    url: openapi/signaturely-templates-api-openapi.yml
  - type: Overview
    url: https://signaturely.com/api
  - type: Documentation
    url: https://docs.signaturely.com/
- aid: signaturely:signaturely-user-api
  name: Signaturely User API
  description: Account information for the authenticated API key.
  humanURL: https://docs.signaturely.com/
  baseURL: https://api.signaturely.com/api/v1
  tags:
  - User
  properties:
  - type: OpenAPI
    url: openapi/signaturely-user-api-openapi.yml
  - type: Overview
    url: https://signaturely.com/api
  - type: Documentation
    url: https://docs.signaturely.com/
- aid: signaturely:signaturely-webhooks-api
  name: Signaturely Webhooks API
  description: Subscribe to document lifecycle events.
  humanURL: https://docs.signaturely.com/
  baseURL: https://api.signaturely.com/api/v1
  tags:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/signaturely-webhooks-api-openapi.yml
  - type: Overview
    url: https://signaturely.com/api
  - type: Documentation
    url: https://docs.signaturely.com/
common:
- type: AgenticAccess
  url: agentic-access/signaturely-agentic-access.yml
- type: DomainSecurity
  url: security/signaturely-domain-security.yml
- type: Authentication
  url: authentication/signaturely-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/signaturely
- type: Website
  url: https://signaturely.com
- type: Documentation
  url: https://docs.signaturely.com/
- type: APIOverview
  url: https://signaturely.com/api
- type: HelpCenter
  url: https://help.signaturely.com/category/53-api
- type: Plans
  url: plans/signaturely-plans-pricing.yml
- type: RateLimits
  url: rate-limits/signaturely-rate-limits.yml
- type: FinOps
  url: finops/signaturely-finops.yml
- url: https://signaturely.com/feed/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com