Documenso

Documenso is the open-source DocuSign alternative, a developer-friendly e-signature platform for sending, signing, and managing documents. Its public REST API lets you create and upload documents, add recipients and signature fields, send documents for signing, work with reusable templates, and receive webhook events across the document lifecycle. Self-hostable under AGPL.

Documenso publishes 4 APIs on the APIs.io network, including Documents API, Fields API, Recipients API, and 1 more. Tagged areas include E-Signature, Documents, Signing, Open-Source, and DocuSign Alternative.

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

🌐 Visit website 📡 Source on GitHub

40.2/100 developing ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs

E-Signature Documents Signing Open-SourceDocuSign Alternative

Kin Score

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

Composite quality — 40.2/100 · developing

Contract Quality 11.3 / 23

Developer Ergonomics 5.8 / 18

Access Clarity 7.1 / 18

Operational Transparency 4.0 / 12

Contract Governance 0.0 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 2.8 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 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/documenso: 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 5

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

Documenso Webhooks

Outbound webhook events covering the full document lifecycle - created, sent, opened, signed, completed, rejected, cancelled - plus template events. Payloads are verified with a...

Documenso Documents API

Create, upload, send, retrieve, download, and delete documents.

Documenso Fields API

Add and configure signature and form fields on a document.

Documenso Recipients API

Manage the recipients (signers, approvers, viewers) of a document.

Documenso Templates API

Manage reusable templates and generate documents from them.

Open Collections 6

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

API Collection

OPEN COLLECTION

Documenso Public Documents API

OPEN COLLECTION

Documenso Public Documents Fields API

OPEN COLLECTION

Documenso Public Documents Recipients API

OPEN COLLECTION

Documenso Public Documents Templates API

OPEN COLLECTION

Documenso Public API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Documenso Plans Pricing

6 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Documenso Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Documenso Finops

FINOPS

Security Posture 3

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

Documenso Authentication

apiKey · 1 scheme

SECURITY

Documenso Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Documenso Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

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

Documenso Agentic Access

18 operations · 13 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

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: documenso
url: https://raw.githubusercontent.com/api-evangelist/documenso/refs/heads/main/apis.yml
name: Documenso
kind: company
description: Documenso is the open-source DocuSign alternative, a developer-friendly e-signature platform for sending, signing,
  and managing documents. Its public REST API lets you create and upload documents, add recipients and signature fields, send
  documents for signing, work with reusable templates, and receive webhook events across the document lifecycle. Self-hostable
  under AGPL.
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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/documenso.png
tags:
- E-Signature
- Documents
- Signing
- Open-Source
- DocuSign Alternative
tags_raw:
- E-Signature
- Documents
- Signing
- Open Source
- DocuSign Alternative
created: '2026-06-20'
modified: '2026-06-20'
specificationVersion: '0.23'
apis:
- aid: documenso:webhooks
  name: Documenso Webhooks
  tags:
  - Webhook
  - Event
  - Notification
  tags_raw:
  - Webhooks
  - Events
  - Notifications
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.documenso.com/docs/developers/webhooks
  baseURL: https://app.documenso.com/api/v1
  properties:
  - url: https://docs.documenso.com/docs/developers/webhooks
    type: Documentation
  - url: https://docs.documenso.com/docs/developers/webhooks/verification
    type: Documentation
  - url: https://github.com/documenso/documenso
    type: GitHub
  description: Outbound webhook events covering the full document lifecycle - created, sent, opened, signed, completed, rejected,
    cancelled - plus template events. Payloads are verified with a shared secret sent in the X-Documenso-Secret header.
- aid: documenso:documenso-documents-api
  name: Documenso Documents API
  description: Create, upload, send, retrieve, download, and delete documents.
  humanURL: https://docs.documenso.com/developers/public-api
  baseURL: https://app.documenso.com/api/v1
  tags:
  - Documents
  properties:
  - type: OpenAPI
    url: openapi/documenso-documents-api-openapi.yml
  - type: Documentation
    url: https://docs.documenso.com/developers/public-api
  - type: APIReference
    url: https://docs.documenso.com/developers/public-api/reference
  - type: PostmanCollection
    url: collections/documenso.postman_collection.json
  - type: GitHub
    url: https://github.com/documenso/documenso
- aid: documenso:documenso-fields-api
  name: Documenso Fields API
  description: Add and configure signature and form fields on a document.
  humanURL: https://docs.documenso.com/developers/public-api
  baseURL: https://app.documenso.com/api/v1
  tags:
  - Fields
  properties:
  - type: OpenAPI
    url: openapi/documenso-fields-api-openapi.yml
  - type: Documentation
    url: https://docs.documenso.com/developers/public-api
  - type: APIReference
    url: https://docs.documenso.com/developers/public-api/reference
  - type: PostmanCollection
    url: collections/documenso.postman_collection.json
  - type: GitHub
    url: https://github.com/documenso/documenso
- aid: documenso:documenso-recipients-api
  name: Documenso Recipients API
  description: Manage the recipients (signers, approvers, viewers) of a document.
  humanURL: https://docs.documenso.com/developers/public-api
  baseURL: https://app.documenso.com/api/v1
  tags:
  - Recipients
  properties:
  - type: OpenAPI
    url: openapi/documenso-recipients-api-openapi.yml
  - type: Documentation
    url: https://docs.documenso.com/developers/public-api
  - type: APIReference
    url: https://docs.documenso.com/developers/public-api/reference
  - type: PostmanCollection
    url: collections/documenso.postman_collection.json
  - type: GitHub
    url: https://github.com/documenso/documenso
- aid: documenso:documenso-templates-api
  name: Documenso Templates API
  description: Manage reusable templates and generate documents from them.
  humanURL: https://docs.documenso.com/developers/public-api
  baseURL: https://app.documenso.com/api/v1
  tags:
  - Templates
  properties:
  - type: OpenAPI
    url: openapi/documenso-templates-api-openapi.yml
  - type: Documentation
    url: https://docs.documenso.com/developers/public-api
  - type: APIReference
    url: https://docs.documenso.com/developers/public-api/reference
  - type: PostmanCollection
    url: collections/documenso.postman_collection.json
  - type: GitHub
    url: https://github.com/documenso/documenso
common:
- type: AgenticAccess
  url: agentic-access/documenso-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/documenso-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/documenso-domain-security.yml
- type: Authentication
  url: authentication/documenso-authentication.yml
- type: GitHubOrganization
  url: https://github.com/documenso
- type: LinkedIn
  url: https://www.linkedin.com/company/documenso
- type: Website
  url: https://documenso.com
- type: Documentation
  url: https://docs.documenso.com
- type: Plans
  url: plans/documenso-plans-pricing.yml
- type: RateLimits
  url: rate-limits/documenso-rate-limits.yml
- type: FinOps
  url: finops/documenso-finops.yml
- url: https://documenso.com/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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