LeadSquared

LeadSquared is a marketing automation and CRM platform that helps businesses capture, manage, nurture, and convert leads across sales, marketing, and service workflows. It offers Sales CRM, Service CRM, marketing automation, field force automation, and a no-code/low-code platform for building industry-specific customer experiences. The LeadSquared REST API provides access to core platform resources like leads, opportunities, activities, tasks, and users using API key authentication.

LeadSquared publishes 4 API contracts indexed on the APIs.io network, including REST API, Activities API, Leads API, and 1 more. Tagged areas include Marketing Automation, CRM, Sales Automation, Lead Management, and Customer Engagement.

The LeadSquared catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

LeadSquared’s developer surface includes authentication, documentation, pricing, signup flow, API reference, getting-started guide, support, and 32 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

55.5/100 strong ▬ flat Agent 36/100 agent ready Front door AI 5/6 prominent Heartbeat 50/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 2 Agent Skills

Marketing Automation CRM Sales Automation Lead Management Customer EngagementField Force Automation

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Sales Management

BC-410

ActivitiesLeads

POST /LeadManagement.svc/Lead.Create POST /ProspectActivity.svc/Create

Kin Score

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

Composite quality — 55.5/100 · strong

Contract Quality 9.5 / 19

Developer Ergonomics 11.0 / 15

Access Clarity 6.5 / 15

Operational Transparency 7.2 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 3.4 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 36/100 · 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 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 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 0 / 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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too

5 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 50.7 — up to +12.3 composite points
Access Clarity scores 43.4 — up to +11.3 composite points
Contract Governance scores 18.2 — up to +9.8 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/leadsquared/apis.yml: open an issue on github.com/api-evangelist/leadsquared 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
Zoom App Marketplace and Partner Ecosystem (builders and partners on Zoom)	builds-on	14.8	-	-

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)

Postman Collections

measured — observed by APIs.io (published)

APIs 4

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

LeadSquared REST API

REST API for managing leads, opportunities, activities, tasks, users, campaigns, and other CRM resources in LeadSquared. Includes Sales CRM, Service CRM, Async, and Portal APIs ...

LeadSquared Async API

Queued, retrying variants of the highest-volume LeadSquared write operations — Capture Leads, Update a Lead, Post an Activity on a Lead, Create a Lead and Activity, Capture Oppo...

LeadSquared Activities API

Activity events on leads

LeadSquared Leads API

Lead create, get, and search

Open Collections 3

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

LeadSquared REST Activities API

OPEN COLLECTION

LeadSquared REST Activities Leads API

OPEN COLLECTION

LeadSquared REST API

OPEN COLLECTION

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

Capture a lead and log its first activity in LeadSquared

AGENT SKILL

Look up a LeadSquared lead by identifier or search term

AGENT SKILL

LeadSquared API pricing

Prices published by LeadSquared, read 2026-10-28 from www.leadsquared.com/marketing-automation-pricing/.

Plan	Price
Marketing Pro	$2000 per account Billed Annually Includes: 1,000 Converse + Chatbot sessions; 100,000/ month emails; 2 users; 2GB + 20MB per user storage; Unli
Marketing Super	$3500 per account Billed Annually Includes: 2,000 Converse + Chatbot sessions; 250,000/ month emails; 2 users; 10GB + 20MB per user storage; Unl

Plan details, limits and sources →

Billed by: account · FinOps profile →

Pricing Plans 1

Published pricing tiers and plan structures.

Leadsquared Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Leadsquared Rate Limits

10 limits

RATE LIMITS

Service Levels 1

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

LeadSquared

SLA

FinOps 1

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

Leadsquared Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Leadsquared Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

LeadSquared API Rules

50 rules · 48 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 2

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Leadsquared Activities Api Overlay

3 actions · update · leadsquared-activities-api-openapi.yml

DERIVED

Leadsquared Leads Api Overlay

4 actions · update · leadsquared-leads-api-openapi.yml

DERIVED

Security Posture 4

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

Leadsquared Authentication

apiKey · 5 schemes

SECURITY

Leadsquared Domain Security

TLSv1.3 · DMARC

SECURITY

Leadsquared Vulnerability Disclosure

Hackerone · contact published

SECURITY

Leadsquared Trust Center

ISO 27001:2022, GDPR

SECURITY

Agentic Access 1

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

Leadsquared Agentic Access

4 operations · 2 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

SignUp

SignUp

Login

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

X-MCPServerCandidate

X-MCPServerCandidate

AgentSkill

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

DataModel

Webhooks

Lifecycle

Conformance

Build 5

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Postman

Packages

SDKs

CLI

Access & Security 6

Authentication, authorization, and security posture

DomainSecurity

Authentication

Compliance

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Operate 4

Status, limits, changes, and where to get help

Support

RateLimits

StatusPage

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: leadsquared
name: LeadSquared
description: LeadSquared is a marketing automation and CRM platform that helps businesses capture, manage, nurture, and convert
  leads across sales, marketing, and service workflows. It offers Sales CRM, Service CRM, marketing automation, field force
  automation, and a no-code/low-code platform for building industry-specific customer experiences. The LeadSquared REST API
  provides access to core platform resources like leads, opportunities, activities, tasks, and users using API key authentication.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: published
  onboarding: sales-gated
  trial: false
  try_now: false
  public: false
  label: Sales-gated onboarding, list pricing published
  confidence: high
  source:
  - https://www.leadsquared.com/sales-crm-pricing/
  - https://www.leadsquared.com/marketing-automation-pricing/
  - https://www.leadsquared.com/free-trial/
  note: Corrected 2026-08-13. The previous derived value said "self-serve signup"; there is no self-serve signup. https://www.leadsquared.com/free-trial/
    redirects to https://www.leadsquared.com/book-demo/ (HTTP 200 after redirect), so the only entry point is a sales demo
    request. List prices ARE published for Sales CRM ($60/$100 per user per month) and Marketing Automation ($2,000/$3,500
    per account per year). API keys are issued inside an existing tenant, so a developer cannot obtain credentials without
    a commercial relationship.
  generated: '2026-08-13'
  method: probed
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/leadsquared.png
tags:
- Marketing Automation
- CRM
- Sales Automation
- Lead Management
- Customer Engagement
- Field Force Automation
url: https://raw.githubusercontent.com/api-evangelist/leadsquared/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-08-13'
specificationVersion: '0.23'
apis:
- aid: leadsquared:rest-api
  name: LeadSquared REST API
  description: REST API for managing leads, opportunities, activities, tasks, users, campaigns, and other CRM resources in
    LeadSquared. Includes Sales CRM, Service CRM, Async, and Portal APIs along with Lapps, Batch Jobs, Webhooks, and Mavis
    Database developer tools. Authentication uses AccessKey and SecretKey query parameters or headers tied to a region- specific
    API host.
  humanURL: https://apidocs.leadsquared.com/overview/
  baseURL: https://api.leadsquared.com
  tags:
  - CRM
  - Marketing Automation
  - Lead Management
  - Sales CRM
  - Service CRM
  properties:
  - type: Documentation
    url: https://apidocs.leadsquared.com/overview/
  - type: Authentication
    url: https://apidocs.leadsquared.com/authentication/
  - type: API Host
    url: https://apidocs.leadsquared.com/api-host/
  - type: PostmanCollection
    url: https://apidocs.leadsquared.com/leadsquared-run-in-postman/
- aid: leadsquared:async-api
  name: LeadSquared Async API
  description: Queued, retrying variants of the highest-volume LeadSquared write operations — Capture Leads, Update a Lead,
    Post an Activity on a Lead, Create a Lead and Activity, Capture Opportunities, Update an Opportunity and Post a Call Log.
    A submission returns a RequestId which is then polled on a matching status endpoint, with a metrics endpoint per operation.
    Requests are accepted and retried up to 10 times even while the core platform is unavailable, which is the documented
    way to keep user-facing capture paths off the 5-second throttle. Authentication adds an x-api-key header to the accessKey/secretKey
    pair; the status endpoints need only x-api-key. Hosts are regional, mirroring the REST API.
  humanURL: https://apidocs.leadsquared.com/async-api/
  baseURL: https://asyncapi.leadsquared.com
  tags:
  - Async
  - Lead Management
  - Queueing
  properties:
  - type: Documentation
    url: https://apidocs.leadsquared.com/async-api/
  - type: Authentication
    url: authentication/leadsquared-authentication.yml
- aid: leadsquared:leadsquared-activities-api
  name: LeadSquared Activities API
  description: Activity events on leads
  humanURL: https://apidocs.leadsquared.com/overview/
  baseURL: https://api.leadsquared.com
  tags:
  - Activities
  properties:
  - type: OpenAPI
    url: openapi/leadsquared-activities-api-openapi.yml
  - type: Overlay
    url: overlays/leadsquared-activities-api-overlay.yaml
- aid: leadsquared:leadsquared-leads-api
  name: LeadSquared Leads API
  description: Lead create, get, and search
  humanURL: https://apidocs.leadsquared.com/overview/
  baseURL: https://api.leadsquared.com
  tags:
  - Leads
  properties:
  - type: OpenAPI
    url: openapi/leadsquared-leads-api-openapi.yml
  - type: Overlay
    url: overlays/leadsquared-leads-api-overlay.yaml
common:
- type: CapabilityMap
  url: capabilities/leadsquared-capability-edges.yml
  name: LeadSquared Business Capability Map
- type: AgenticAccess
  url: agentic-access/leadsquared-agentic-access.yml
- type: DomainSecurity
  url: security/leadsquared-domain-security.yml
- type: Authentication
  url: authentication/leadsquared-authentication.yml
- type: GitHubOrganization
  url: https://github.com/leadsquared
- type: LinkedIn
  url: https://www.linkedin.com/company/leadsquared
- type: Website
  url: https://www.leadsquared.com
- type: Documentation
  url: https://apidocs.leadsquared.com
- type: Pricing
  url: https://www.leadsquared.com/marketing-automation-pricing/
- type: SignUp
  url: https://www.leadsquared.com/book-demo/
- type: Login
  url: https://login.leadsquared.com/
- type: DeveloperPortal
  url: https://apidocs.leadsquared.com/
- type: APIReference
  url: https://apidocs.leadsquared.com/overview/
- type: GettingStarted
  url: https://apidocs.leadsquared.com/getting-started/
- type: Support
  url: https://help.leadsquared.com/
- type: Blog
  url: https://www.leadsquared.com/learn/
- type: Postman
  url: https://www.postman.com/leadsquaredapi
- type: TermsOfService
  url: https://www.leadsquared.com/leadsquared-terms-of-service/
- type: PrivacyPolicy
  url: https://www.leadsquared.com/privacy-policy/
- type: Packages
  url: packages/leadsquared-packages.yml
- type: SDKs
  url: packages/leadsquared-packages.yml
- type: CLI
  url: cli/leadsquared-cli.yml
- type: LLMsTxt
  url: llms/leadsquared-llms.txt
- type: X-MCPServerCandidate
  url: mcp/leadsquared-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: AgentSkill
  url: skills/_index.yml
- type: Conventions
  url: conventions/leadsquared-conventions.yml
- type: ErrorCatalog
  url: errors/leadsquared-problem-types.yml
- type: RateLimits
  url: rate-limits/leadsquared-rate-limits.yml
- type: Plans
  url: plans/leadsquared-plans-pricing.yml
- type: DataModel
  url: data-model/leadsquared-data-model.yml
- type: Webhooks
  url: asyncapi/leadsquared-webhooks.yml
- type: Lifecycle
  url: lifecycle/leadsquared-lifecycle.yml
- type: StatusPage
  url: https://status.leadsquared.com/
- type: ChangeLog
  url: changelog/leadsquared-changelog.yml
- type: Conformance
  url: conformance/leadsquared-conformance.yml
- type: Compliance
  url: https://www.leadsquared.com/security/
- type: TrustCenter
  url: security/leadsquared-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/leadsquared-vulnerability-disclosure.yml
- type: Security
  url: https://www.leadsquared.com/security/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 23
  pass: local-v1

LeadSquared API — frequently asked questions

Does LeadSquared have an API?

Yes. APIs.io lists 4 APIs from LeadSquared, including LeadSquared REST API, LeadSquared Async API and LeadSquared Activities API, and 1 more.

Is there an OpenAPI specification for the LeadSquared API?

Yes. APIs.io indexes 2 OpenAPI specifications for LeadSquared, each linked for download from this page.

How do I authenticate with the LeadSquared API?

LeadSquared uses bearer-token authentication (apiKey · 5 schemes). The details are profiled on APIs.io as Leadsquared Authentication.

How much does the LeadSquared API cost?

LeadSquared publishes its prices; its Marketing Pro plan is $2000 per account Billed Annually as of 2026-10-28. APIs.io lists 2 pricing plans for LeadSquared, with each plan's price, limits and inclusions under Pricing on this page.

Is the LeadSquared API ready for AI agents?

LeadSquared has a Kin Score of 55.5 out of 100 (strong) and an Agent Readiness score of 35.9 (agent-ready), scored by API Evangelist on 2026-11-06.

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