Zoho Sign

Zoho Sign is a cloud-based electronic signature platform that provides a REST API for sending documents for signature, managing templates, tracking signing status, and automating signature workflows. The API supports OAuth 2.0 authentication and enables developers to create envelopes, manage recipients, configure signing fields, trigger bulk sends, and retrieve audit trails programmatically. Over 25,000 envelopes are sent daily through Zoho Sign APIs, covering use cases from simple document signing to embedded signing, in-person signing, and enterprise compliance workflows including 21 CFR Part 11 and QES.

Zoho Sign publishes 4 API contracts indexed on the APIs.io network, including Accounts API, Requests API, Templates API, and 1 more. Tagged areas include E-Signature, Document Management, Digital Signature, Signature Workflows, and Templates.

The Zoho Sign catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Zoho Sign’s developer surface includes authentication, documentation, engineering blog, pricing, and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

38.4/100 thin ▬ flat Agent 30/100 agent ready saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

E-Signature Document Management Digital SignatureSignature WorkflowsTemplates Compliance

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 38.4/100 · thin

Contract Quality 10.0 / 19

Developer Ergonomics 5.4 / 15

Access Clarity 2.2 / 15

Operational Transparency 3.9 / 10

Contract Governance 0.9 / 9

Discoverability 5.0 / 8

Regulatory Posture 4.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 30/100 · agent ready

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 8 / 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 6 / 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/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/zoho-sign/"><img src="https://apis.io/badge/zoho-sign/card.svg" alt="Zoho Sign on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

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 Ask about this →
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) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →

7 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 14.9 — up to +17.0 composite points Ask about this →
Developer Ergonomics scores 35.7 — up to +12.9 composite points Ask about this →
Contract Quality scores 53.3 — up to +11.7 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/zoho-sign/apis.yml: open an issue on github.com/api-evangelist/zoho-sign 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Legal and E-Signature	long-tail	5.0 (thin)	-	-
PDF and Document Standards (PDF tooling, document signing trust, invoice documents)	long-tail	5.0 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 2

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)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 4

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

Zoho Sign Accounts API

The Accounts API from Zoho Sign — 1 operation(s) for accounts.

Zoho Sign Requests API

The Requests API from Zoho Sign — 2 operation(s) for requests.

Zoho Sign Templates API

The Templates API from Zoho Sign — 2 operation(s) for templates.

Zoho Sign Users API

The Users API from Zoho Sign — 1 operation(s) for users.

Open Collections 4

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

Zoho Sign Accounts API

OPEN COLLECTION

Zoho Sign Accounts Requests API

OPEN COLLECTION

Zoho Sign Accounts Templates API

OPEN COLLECTION

Zoho Sign Accounts Users API

OPEN COLLECTION

Zoho Sign API pricing

Not yet checked against Zoho Sign's own pricing page. Compiled by API Evangelist; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free	Free per user
Standard	$10 per user
Professional	$16 per user
Enterprise	$22 per user
API Plan	—

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Zoho Sign Plans Pricing

5 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Zoho Sign Rate Limits

5 limits

RATE LIMITS

Service Levels 1

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

Zoho Sign

SLA

FinOps 1

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

Zoho Sign Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Zoho Sign Context

0 classes · 0 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Zoho Sign — jsonschema rules

6 rules · 5 warn-severity 1 info-severity

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Zoho Sign API Schemas

0 properties

JSON SCHEMA

Examples 3

Example request and response payloads for these APIs.

Create Request

5 fields

EXAMPLE

List Requests

5 fields

EXAMPLE

List Templates

4 fields

EXAMPLE

Security Posture 3

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

Zoho Sign Authentication

oauth2 · 1 scheme

SECURITY

Zoho Sign Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Zoho Sign Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Zoho Sign Scopes

3 scopes · authorizationCode

3 scopes

SCOPES

Agentic Access (API Evangelist recommendations) 1

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

Zoho Sign Agentic Access

9 operations · 3 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

GitHubOrg

GitHubOrg

Access & Security 4

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: zoho-sign
name: Zoho Sign
description: Zoho Sign is a cloud-based electronic signature platform that provides a REST API for sending documents for signature,
  managing templates, tracking signing status, and automating signature workflows. The API supports OAuth 2.0 authentication
  and enables developers to create envelopes, manage recipients, configure signing fields, trigger bulk sends, and retrieve
  audit trails programmatically. Over 25,000 envelopes are sent daily through Zoho Sign APIs, covering use cases from simple
  document signing to embedded signing, in-person signing, and enterprise compliance workflows including 21 CFR Part 11 and
  QES.
type: Index
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
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/zoho-sign.png
url: https://raw.githubusercontent.com/api-evangelist/zoho-sign/refs/heads/main/apis.yml
created: 2026-06-13
modified: 2026-06-13
specificationVersion: '0.23'
tags:
- E-Signature
- Document Management
- Digital Signature
- Signature Workflows
- Templates
- Compliance
tags_raw:
- Electronic Signatures
- eSignature
- Document Management
- Digital Signatures
- Signature Workflows
- Templates
- Compliance
- Document-Management
- Electronic Signature
apis:
- aid: zoho-sign:zoho-sign-accounts-api
  name: Zoho Sign Accounts API
  description: The Accounts API from Zoho Sign — 1 operation(s) for accounts.
  humanURL: https://www.zoho.com/sign/api/
  baseURL: https://sign.zoho.com/api/v1
  tags:
  - Account
  tags_raw:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/zoho-sign-accounts-api-openapi.yml
  - type: Documentation
    url: https://www.zoho.com/sign/api/introduction.html
  - type: Authentication
    url: https://www.zoho.com/sign/api/oauth.html
  - type: GettingStarted
    url: https://www.zoho.com/sign/api/getting-started.html
  - type: Limitations
    url: https://www.zoho.com/sign/api/api-limitations.html
- aid: zoho-sign:zoho-sign-requests-api
  name: Zoho Sign Requests API
  description: The Requests API from Zoho Sign — 2 operation(s) for requests.
  humanURL: https://www.zoho.com/sign/api/
  baseURL: https://sign.zoho.com/api/v1
  tags:
  - Requests
  properties:
  - type: OpenAPI
    url: openapi/zoho-sign-requests-api-openapi.yml
  - type: Documentation
    url: https://www.zoho.com/sign/api/introduction.html
  - type: Authentication
    url: https://www.zoho.com/sign/api/oauth.html
  - type: GettingStarted
    url: https://www.zoho.com/sign/api/getting-started.html
  - type: Limitations
    url: https://www.zoho.com/sign/api/api-limitations.html
- aid: zoho-sign:zoho-sign-templates-api
  name: Zoho Sign Templates API
  description: The Templates API from Zoho Sign — 2 operation(s) for templates.
  humanURL: https://www.zoho.com/sign/api/
  baseURL: https://sign.zoho.com/api/v1
  tags:
  - Templates
  properties:
  - type: OpenAPI
    url: openapi/zoho-sign-templates-api-openapi.yml
  - type: Documentation
    url: https://www.zoho.com/sign/api/introduction.html
  - type: Authentication
    url: https://www.zoho.com/sign/api/oauth.html
  - type: GettingStarted
    url: https://www.zoho.com/sign/api/getting-started.html
  - type: Limitations
    url: https://www.zoho.com/sign/api/api-limitations.html
- aid: zoho-sign:zoho-sign-users-api
  name: Zoho Sign Users API
  description: The Users API from Zoho Sign — 1 operation(s) for users.
  humanURL: https://www.zoho.com/sign/api/
  baseURL: https://sign.zoho.com/api/v1
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/zoho-sign-users-api-openapi.yml
  - type: Documentation
    url: https://www.zoho.com/sign/api/introduction.html
  - type: Authentication
    url: https://www.zoho.com/sign/api/oauth.html
  - type: GettingStarted
    url: https://www.zoho.com/sign/api/getting-started.html
  - type: Limitations
    url: https://www.zoho.com/sign/api/api-limitations.html
common:
- type: AgenticAccess
  url: agentic-access/zoho-sign-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/zoho-sign-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/zoho-sign-domain-security.yml
- type: Authentication
  url: authentication/zoho-sign-authentication.yml
- type: OAuthScopes
  url: scopes/zoho-sign-scopes.yml
- type: Website
  url: https://www.zoho.com/sign/
- type: Documentation
  url: https://www.zoho.com/sign/api/introduction.html
- type: GitHubOrg
  url: https://github.com/zoho
- type: LinkedIn
  url: https://www.linkedin.com/company/zohosign
- type: Blog
  url: https://www.zoho.com/blog/sign/
- type: Pricing
  url: https://www.zoho.com/sign/pricing.html
- type: StatusPage
  url: https://status.zoho.com/
- type: X
  url: https://twitter.com/ZohoSign
- type: Plans
  url: plans/zoho-sign-plans-pricing.yml
- type: RateLimits
  url: rate-limits/zoho-sign-rate-limits.yml
- type: FinOps
  url: finops/zoho-sign-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-parent: zoho
x-relationship: product

Zoho Sign API — frequently asked questions

Does Zoho Sign have an API?

Yes. APIs.io lists 4 APIs from Zoho Sign, including Zoho Sign Accounts API, Zoho Sign Requests API and Zoho Sign Templates API, and 1 more.

Is there an OpenAPI specification for the Zoho Sign API?

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

How do I authenticate with the Zoho Sign API?

Zoho Sign documents its authentication (oauth2 · 1 scheme). The details are profiled on APIs.io as Zoho Sign Authentication.

How much does the Zoho Sign API cost?

APIs.io lists 5 pricing plans for Zoho Sign, with each plan's price, limits and inclusions under Pricing on this page.

Is the Zoho Sign API ready for AI agents?

Zoho Sign has a Kin Score of 38.4 out of 100 (thin) and an Agent Readiness score of 30.2 (agent-ready), scored by API Evangelist on 2026-11-13.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/zoho-sign"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/zoho-sign/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/zoho-sign/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.