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 5 API contracts indexed on the APIs.io network, including Documents API, Fields API, Recipients API, and 2 more. Tagged areas include E-Signature, Documents, Signing, Open Source, and DocuSign Alternative.

The Documenso catalog on APIs.io includes 1 Spectral governance ruleset.

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

🌐 Visit website 📡 Profile data on GitHub

32.7/100 thin ▬ flat Agent 20/100 agent aware Front door AI 1/6 silent Heartbeat 88/100 alive open core · AGPL-3.0 Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

E-Signature Documents Signing Open SourceDocuSign Alternative

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 32.7/100 · thin

Contract Quality 8.4 / 19

Developer Ergonomics 4.8 / 15

Access Clarity 1.2 / 15

Operational Transparency 2.1 / 10

Contract Governance 1.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 2.6 / 15

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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 7.9 — up to +18.4 composite points
Contract Quality scores 45.0 — up to +13.8 composite points
Developer Ergonomics scores 32.1 — up to +13.6 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/documenso/apis.yml: open an issue on github.com/api-evangelist/documenso to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

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 5

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

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

Documenso API pricing

Not yet checked against Documenso's own pricing page. Compiled by API Evangelist on 2026-06-20 from documenso.com/pricing; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Self-Hosted (Open Source) free	—
Free free	Free
Individual paid	—
Teams paid	—
Platform paid	—
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

API Requests Per Token: see provider documentation requests
Documents Per Month (Free tier): 5 documents
Recipients Per Document (Free tier): 10 recipients

Compiled by API Evangelist, not yet checked against Documenso's documentation. All 4 limits →

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

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Documenso

SLA

FinOps 1

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

Documenso Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Documenso API Rules

64 rules · 62 errors 1 warnings 1 info

SPECTRAL

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: open-core
  license: AGPL-3.0
  license_evidence:
    repo: documenso/documenso
    spdx: AGPL-3.0
    stars: 15184
  open_source: true
  commercial: true
  callable_host: true
  label: Open core · an OSS project plus a commercial hosted product
  confidence: medium
  source:
  - openapi
  - pricing
  - repository-license
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  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
- Open-Source
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

Documenso API — frequently asked questions

Does Documenso have an API?

Yes. APIs.io lists 5 APIs from Documenso, including Documenso Webhooks, Documenso Documents API and Documenso Fields API, and 2 more.

Is there an OpenAPI specification for the Documenso API?

Yes. APIs.io indexes 4 OpenAPI specifications for Documenso, each linked for download from this page.

How do I authenticate with the Documenso API?

Documenso uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Documenso Authentication.

How much does the Documenso API cost?

APIs.io lists 6 pricing plans for Documenso, with each plan's price, limits and inclusions under Pricing on this page.

Is the Documenso API ready for AI agents?

Documenso has a Kin Score of 32.7 out of 100 (thin) and an Agent Readiness score of 19.6 (agent-aware), scored by API Evangelist on 2026-11-06.

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