Smartlead

Smartlead is cold email infrastructure for outbound sales and lead generation, focused on inbox deliverability through unlimited mailbox rotation, automated warmup, and a unified master inbox. Smartlead publishes an OpenAPI 3.1.1 contract with 98 operations at server.smartlead.ai/api/v1 covering campaigns, sequences, leads and lead lists, sender mailboxes and warmup, the master inbox, webhooks, analytics, Smart Delivery placement testing, Smart Senders and agency client management, authenticated with an API key passed as a query parameter. It also ships an unusually forward agent surface for its size — an A2A agent card, a published Agent Skill, a remote documentation MCP server, llms.txt, and a first-party CLI — alongside a 13-event signed webhook catalog.

Smartlead publishes 19 API contracts indexed on the APIs.io network, including Campaign Statistics API, Campaigns API, Analytics API, and 16 more. Tagged areas include Cold Email, Outbound, Sales, Deliverability, and Email Warm-up.

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

Smartlead’s developer surface includes authentication, CLI, documentation, API reference, getting-started guide, pricing, engineering blog, and 41 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

60.2/100 strong ▬ flat Agent 42/100 agent ready Front door AI 5/6 prominent Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessPaidSelf serveFree trial⚡ Free to try

1 published contract 1 MCP Servers 1 Agent Skills

Cold Email Outbound Sales Deliverability Email Warm-up Automation Sequences A2A

What this lets a business do 3

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

Marketing Management

BC-400

AnalyticsCampaign StatisticsCampaignsLeads

POST /v1/campaigns/create POST /v1/campaigns/{campaign_id}/sequences POST /v1/campaigns/{campaign_id}/leads POST /v1/leads/{lead_id}/unsubscribe

Application Communications

AE-150

Email AccountsMaster Inbox

POST /v1/email-accounts/{account_id} POST /v1/email-accounts/save POST /v1/email-accounts/{account_id}/warmup POST /v1/campaigns/{campaign_id}/reply-email-thread

Developer Platform & API Ecosystem Management

BC-4270

Webhooks

POST /v1/webhook/create

Kin Score

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

Composite quality — 60.2/100 · strong

Contract Quality 11.0 / 19

Developer Ergonomics 10.7 / 15

Access Clarity 11.8 / 15

Operational Transparency 3.9 / 10

Contract Governance 1.6 / 9

Discoverability 5.6 / 8

Regulatory Posture 3.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 42/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 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 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 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/.

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/smartlead-ai/"><img src="https://apis.io/badge/smartlead-ai/card.svg" alt="Smartlead 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):

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 →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
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) Ask about this →
Pagination +5 pts — share of collection GETs (an array, or one wrapped in data/items/results ...) that declare a page/limit/offset/cursor parameter, a Link header or a next/cursor field; na with no collection GETs Ask about this →
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified) Ask about this →
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's Ask about this →

3 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 58.9 — up to +10.3 composite points Ask about this →
Contract Governance scores 18.2 — up to +9.8 composite points Ask about this →
Operational Transparency scores 40.5 — up to +7.7 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/smartlead-ai/apis.yml: open an issue on github.com/api-evangelist/smartlead-ai 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 4

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.

Agent2Agent

measured — observed by APIs.io (flavored)

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

Agent Skills

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 19

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

Smartlead Campaigns API

REST endpoints to create, list, fetch, update, schedule, pause, resume, and delete email campaigns, plus manage sequences, A/B variants, and sender account assignments inside a ...

Smartlead Leads API

Endpoints to add leads to a campaign in bulk, fetch leads, update lead status (interested, replied, unsubscribed), search leads globally, and manage lead categories and lead lists.

Smartlead Email Accounts API

Endpoints to add, list, update, and remove sender mailboxes (SMTP, Gmail, Outlook), assign them to campaigns, and track per-account sending limits and warmup state.

Smartlead Email Warmup API

Endpoints for managing Smartlead's deliverability warmup engine — enabling warmup per mailbox, configuring ramp settings, and reading warmup reputation and stats.

Smartlead Webhooks API

CRUD endpoints for user, client and campaign-scoped webhook subscriptions covering lead events (sent, opened, clicked, replied, bounced, unsubscribed) used to stream Smartlead a...

Smartlead Analytics API

Endpoints for campaign and account-level analytics — sent, open, click, reply, bounce, and unsubscribe metrics aggregated over time ranges.

Smartlead Client Management API

Endpoints for agency users to provision and manage white-labeled client accounts, mint and revoke per-client API keys, and meter usage across multiple end customers.

Smartlead Campaign Statistics API

Retrieve campaign performance metrics.

Smartlead Campaigns API

Manage Smartlead email campaigns.

SmartLead Documentation MCP Server

SmartLead's remote Model Context Protocol server. tools/list answers anonymously with three documentation tools (search, a read-only docs filesystem, feedback). It exposes the S...

Smartlead Analytics API

Global analytics and reporting across all campaigns

Smartlead Authentication API

User authentication and account management

Smartlead Email Accounts API

Configure and manage email sending accounts

Smartlead Leads API

Manage leads and prospects across campaigns

Smartlead Master Inbox API

Unified inbox for all campaign communications

Smartlead Smart Delivery API

Email deliverability testing and monitoring

Smartlead Smart Senders API

Automated email account provisioning marketplace

Smartlead Utilities API

Utility endpoints for various operations

Smartlead Webhooks API

Configure webhooks for real-time event notifications

Scroll for all 19

Open Collections 3

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

Smartlead Campaign Statistics API

OPEN COLLECTION

Smartlead Campaign Statistics Campaigns API

OPEN COLLECTION

Smartlead API

OPEN COLLECTION

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Smartlead MCP Server

SmartLead operates a remote MCP server on its documentation/API host. `tools/list` answered anonymously over Streamable HTTP (SSE), so the tool set below is the server's real, l...

MCP SERVER

Agent Skills 1

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

Smartlead

AGENT SKILL

Smartlead API pricing

Prices published by Smartlead, read 2026-10-28 from www.smartlead.ai/pricing.

Plan	Price
Base	$39/month Includes: 2,000 contacts, 6,000 Email sends, 2,000 Verified Emails Add-on $59/month
Pro	$94/month Includes: 30,000 contacts, 90,000 Email sends, 30,000 Verified Emails Add-on $59/month
Unlimited Smart	$174/month Includes: Unlimited contacts, 150,000 Email sends, 50,000 Verified Emails FREE
Unlimited Prime	$379/month Includes: Unlimited contacts, 500,000 Email sends, 170,000 Verified Emails FREE, 3 SmartServers included
Base (yearly)	$32/month Includes: 2,000 contacts, 6,000 Email sends
Pro (yearly)	$78/month Includes: 30,000 contacts, 90,000 Email sends
Unlimited Smart (yearly)	$144/month Includes: Unlimited contacts, 150,000 Email sends
Unlimited Prime (yearly)	$315/month Includes: Unlimited contacts, 500,000 Email sends

All 16 plans, limits and sources →

Rate limits

Standard: 60 requests per minute
Standard (hourly): 1000 requests per hour
Pro: 120 requests per minute

All 5 limits →

Billed by: credits · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Smartlead Plans Pricing

16 plans

PLANS

Smartlead Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Smartlead Rate Limits

5 limits

RATE LIMITS

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Smartlead

9 quoted statements, read from Smartlead's own page on 2026-11-10.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

Smartlead

22 quoted statements, read from Smartlead's own page on 2026-11-10.

PRIVACY

Eligibility 1

Who may sign up and where, quoted from its own terms.

Smartlead

1 quoted statement, read from Smartlead's own page on 2026-11-10.

ELIGIBILITY

AI Preferences 1

Its stance on AI training, inference and agents, quoted from its own pages.

Smartlead

1 quoted statement, read from Smartlead's own page on 2026-11-10.

AI PREFS

Data License 1

How its data and outputs may be reused, quoted from its own terms.

Smartlead

1 quoted statement, read from Smartlead's own page on 2026-11-10.

LICENSE

FinOps 1

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

Smartlead Finops

FINOPS

Event Specifications 1

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

Smartlead Ai Webhooks

ASYNCAPI

Spectral Rules 1

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

Smartlead API Rules

71 rules · 60 error-severity 10 warn-severity 1 info-severity

SPECTRAL

OpenAPI Overlays 1

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.

Smartlead Openapi Overlay

7 actions · update · smartlead-ai-openapi.yml

DERIVED

Security Posture 2

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

Smartlead Authentication

apiKey · 1 scheme

SECURITY

Smartlead Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Smartlead Agentic Access

98 operations · 42 acting · 1 human-in-the-loop

98 operations · 42 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

AIPreferences

AIPreferences

Agent Surfaces 6

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

MCPServer

LLMsTxt

WellKnown

LlmsText

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Webhooks

DataModel

Conformance

Build 4

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

Packages

Packages

CLI

CLI

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

Compliance

Compliance

DomainSecurity

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 4

Status, limits, changes, and where to get help

RateLimits

Roadmap

Support

Help

Commercial 7

Pricing, plans, and the legal terms of use

FinOps

Plans

Pricing

PrivacyPolicy

TermsOfService

UsageTerms

DataLicense

Scroll for all 7

Company 4

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Twitter

Twitter

Other 6

Properties that don't map to a standard resource type

CapabilityMap

AgentCard

Overlay

App

DataProcessing

Eligibility

Source (apis.yml)

aid: smartlead-ai
url: https://raw.githubusercontent.com/api-evangelist/smartlead-ai/refs/heads/main/apis.yml
name: Smartlead
kind: company
description: Smartlead is cold email infrastructure for outbound sales and lead generation, focused on inbox deliverability
  through unlimited mailbox rotation, automated warmup, and a unified master inbox. Smartlead publishes an OpenAPI 3.1.1 contract
  with 98 operations at server.smartlead.ai/api/v1 covering campaigns, sequences, leads and lead lists, sender mailboxes and
  warmup, the master inbox, webhooks, analytics, Smart Delivery placement testing, Smart Senders and agency client management,
  authenticated with an API key passed as a query parameter. It also ships an unusually forward agent surface for its size
  — an A2A agent card, a published Agent Skill, a remote documentation MCP server, llms.txt, and a first-party CLI — alongside
  a 13-event signed webhook catalog.
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: paid
  onboarding: self-serve
  trial: true
  try_now: true
  public: true
  label: Paid · Free trial · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-08-13'
  method: searched
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/smartlead-ai.png
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-04
x-docs-hosting: vercel
tags:
- Cold Email
- Outbound
- Sales
- Deliverability
- Email Warm-up
- Automation
- Sequences
- A2A
tags_raw:
- Cold Email
- Outbound
- Sales
- Deliverability
- Email Warmup
- Automation
- Sequences
- A2A
created: '2026-05-23'
modified: '2026-08-13'
specificationVersion: '0.23'
apis:
- aid: smartlead-ai:campaigns-api
  name: Smartlead Campaigns API
  description: REST endpoints to create, list, fetch, update, schedule, pause, resume, and delete email campaigns, plus manage
    sequences, A/B variants, and sender account assignments inside a campaign.
  humanURL: https://api.smartlead.ai/api-reference/campaigns
  baseURL: https://server.smartlead.ai/api/v1/campaigns
  tags:
  - Campaigns
  - Sequences
  - Scheduling
  properties:
  - type: Documentation
    url: https://api.smartlead.ai/core/campaigns
- aid: smartlead-ai:leads-api
  name: Smartlead Leads API
  description: Endpoints to add leads to a campaign in bulk, fetch leads, update lead status (interested, replied, unsubscribed),
    search leads globally, and manage lead categories and lead lists.
  humanURL: https://api.smartlead.ai/api-reference/leads
  baseURL: https://server.smartlead.ai/api/v1
  tags:
  - Leads
  - Contacts
  - Prospects
  properties:
  - type: Documentation
    url: https://api.smartlead.ai/core/leads
- aid: smartlead-ai:email-accounts-api
  name: Smartlead Email Accounts API
  description: Endpoints to add, list, update, and remove sender mailboxes (SMTP, Gmail, Outlook), assign them to campaigns,
    and track per-account sending limits and warmup state.
  humanURL: https://api.smartlead.ai/api-reference/email-accounts
  baseURL: https://server.smartlead.ai/api/v1/email-accounts
  tags:
  - Email Accounts
  - SMTP
  - Mailboxes
  properties:
  - type: Documentation
    url: https://api.smartlead.ai/core/email-accounts
- aid: smartlead-ai:email-warmup-api
  name: Smartlead Email Warmup API
  description: Endpoints for managing Smartlead's deliverability warmup engine — enabling warmup per mailbox, configuring
    ramp settings, and reading warmup reputation and stats.
  humanURL: https://api.smartlead.ai/guides/email-warmup
  baseURL: https://server.smartlead.ai/api/v1/email-accounts
  tags:
  - Warmup
  - Deliverability
  - Reputation
  properties:
  - type: Documentation
    url: https://api.smartlead.ai/guides/email-warmup
- aid: smartlead-ai:webhooks-api
  name: Smartlead Webhooks API
  description: CRUD endpoints for user, client and campaign-scoped webhook subscriptions covering lead events (sent, opened,
    clicked, replied, bounced, unsubscribed) used to stream Smartlead activity to external systems.
  humanURL: https://api.smartlead.ai/api-reference/webhooks/events
  baseURL: https://server.smartlead.ai/api/v1/webhooks
  tags:
  - Webhook
  - Event
  - Subscription
  tags_raw:
  - Webhooks
  - Events
  - Subscriptions
  properties:
  - type: Documentation
    url: https://api.smartlead.ai/core/webhooks
  - type: Webhooks
    url: asyncapi/smartlead-ai-webhooks.yml
- aid: smartlead-ai:analytics-api
  name: Smartlead Analytics API
  description: Endpoints for campaign and account-level analytics — sent, open, click, reply, bounce, and unsubscribe metrics
    aggregated over time ranges.
  humanURL: https://api.smartlead.ai/api-reference/analytics
  baseURL: https://server.smartlead.ai/api/v1
  tags:
  - Analytics
  - Reporting
  - Metrics
  properties:
  - type: Documentation
    url: https://api.smartlead.ai/api-reference
- aid: smartlead-ai:client-management-api
  name: Smartlead Client Management API
  description: Endpoints for agency users to provision and manage white-labeled client accounts, mint and revoke per-client
    API keys, and meter usage across multiple end customers.
  humanURL: https://api.smartlead.ai/api-reference/clients
  baseURL: https://server.smartlead.ai/api/v1
  tags:
  - Clients
  - Agency
  - Multi-Tenant
  properties:
  - type: Documentation
    url: https://api.smartlead.ai/api-reference
- aid: smartlead-ai:smartlead-ai-campaign-statistics-api
  name: Smartlead Campaign Statistics API
  description: Retrieve campaign performance metrics.
  humanURL: https://api.smartlead.ai/api-reference/campaign-statistics
  baseURL: https://server.smartlead.ai/api/v1/campaigns
  tags:
  - Campaign Statistics
  properties:
  - type: OpenAPI
    url: openapi/smartlead-ai-campaign-statistics-api-openapi.yml
- aid: smartlead-ai:smartlead-ai-campaigns-api
  name: Smartlead Campaigns API
  description: Manage Smartlead email campaigns.
  humanURL: https://api.smartlead.ai/api-reference/campaigns
  baseURL: https://server.smartlead.ai/api/v1/campaigns
  tags:
  - Campaigns
  properties:
  - type: OpenAPI
    url: openapi/smartlead-ai-campaigns-api-openapi.yml
- aid: smartlead-ai:mcp-server
  name: SmartLead Documentation MCP Server
  description: SmartLead's remote Model Context Protocol server. tools/list answers anonymously with three documentation tools
    (search, a read-only docs filesystem, feedback). It exposes the SmartLead documentation and OpenAPI to agents; it does
    not execute SmartLead REST operations.
  humanURL: https://api.smartlead.ai/introduction
  baseURL: https://api.smartlead.ai/mcp
  tags:
  - MCP
  - Agents
  - Documentation
  properties:
  - type: MCPServer
    url: mcp/smartlead-ai-mcp.yml
  - type: ToolCrosswalk
    url: mcp/smartlead-ai-tool-crosswalk.yml
- aid: smartlead-ai:smartlead-ai-analytics-api
  name: Smartlead Analytics API
  description: Global analytics and reporting across all campaigns
  humanURL: https://api.smartlead.ai/api-reference
  baseURL: https://server.smartlead.ai/api/v1
  tags:
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/smartlead-ai-analytics-api-openapi.yml
  - type: Documentation
    url: https://api.smartlead.ai/introduction
  - type: APIReference
    url: https://api.smartlead.ai/api-reference
- aid: smartlead-ai:smartlead-ai-authentication-api
  name: Smartlead Authentication API
  description: User authentication and account management
  humanURL: https://api.smartlead.ai/api-reference
  baseURL: https://server.smartlead.ai/api/v1
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/smartlead-ai-authentication-api-openapi.yml
  - type: Documentation
    url: https://api.smartlead.ai/introduction
  - type: APIReference
    url: https://api.smartlead.ai/api-reference
- aid: smartlead-ai:smartlead-ai-email-accounts-api
  name: Smartlead Email Accounts API
  description: Configure and manage email sending accounts
  humanURL: https://api.smartlead.ai/api-reference
  baseURL: https://server.smartlead.ai/api/v1
  tags:
  - Email Accounts
  properties:
  - type: OpenAPI
    url: openapi/smartlead-ai-email-accounts-api-openapi.yml
  - type: Documentation
    url: https://api.smartlead.ai/introduction
  - type: APIReference
    url: https://api.smartlead.ai/api-reference
- aid: smartlead-ai:smartlead-ai-leads-api
  name: Smartlead Leads API
  description: Manage leads and prospects across campaigns
  humanURL: https://api.smartlead.ai/api-reference
  baseURL: https://server.smartlead.ai/api/v1
  tags:
  - Leads
  properties:
  - type: OpenAPI
    url: openapi/smartlead-ai-leads-api-openapi.yml
  - type: Documentation
    url: https://api.smartlead.ai/introduction
  - type: APIReference
    url: https://api.smartlead.ai/api-reference
- aid: smartlead-ai:smartlead-ai-master-inbox-api
  name: Smartlead Master Inbox API
  description: Unified inbox for all campaign communications
  humanURL: https://api.smartlead.ai/api-reference
  baseURL: https://server.smartlead.ai/api/v1
  tags:
  - Master Inbox
  properties:
  - type: OpenAPI
    url: openapi/smartlead-ai-master-inbox-api-openapi.yml
  - type: Documentation
    url: https://api.smartlead.ai/introduction
  - type: APIReference
    url: https://api.smartlead.ai/api-reference
- aid: smartlead-ai:smartlead-ai-smart-delivery-api
  name: Smartlead Smart Delivery API
  description: Email deliverability testing and monitoring
  humanURL: https://api.smartlead.ai/api-reference
  baseURL: https://server.smartlead.ai/api/v1
  tags:
  - Smart Delivery
  properties:
  - type: OpenAPI
    url: openapi/smartlead-ai-smart-delivery-api-openapi.yml
  - type: Documentation
    url: https://api.smartlead.ai/introduction
  - type: APIReference
    url: https://api.smartlead.ai/api-reference
- aid: smartlead-ai:smartlead-ai-smart-senders-api
  name: Smartlead Smart Senders API
  description: Automated email account provisioning marketplace
  humanURL: https://api.smartlead.ai/api-reference
  baseURL: https://server.smartlead.ai/api/v1
  tags:
  - Smart Senders
  properties:
  - type: OpenAPI
    url: openapi/smartlead-ai-smart-senders-api-openapi.yml
  - type: Documentation
    url: https://api.smartlead.ai/introduction
  - type: APIReference
    url: https://api.smartlead.ai/api-reference
- aid: smartlead-ai:smartlead-ai-utilities-api
  name: Smartlead Utilities API
  description: Utility endpoints for various operations
  humanURL: https://api.smartlead.ai/api-reference
  baseURL: https://server.smartlead.ai/api/v1
  tags:
  - Utilities
  properties:
  - type: OpenAPI
    url: openapi/smartlead-ai-utilities-api-openapi.yml
  - type: Documentation
    url: https://api.smartlead.ai/introduction
  - type: APIReference
    url: https://api.smartlead.ai/api-reference
- aid: smartlead-ai:smartlead-ai-webhooks-api
  name: Smartlead Webhooks API
  description: Configure webhooks for real-time event notifications
  humanURL: https://api.smartlead.ai/api-reference
  baseURL: https://server.smartlead.ai/api/v1
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/smartlead-ai-webhooks-api-openapi.yml
  - type: Documentation
    url: https://api.smartlead.ai/introduction
  - type: APIReference
    url: https://api.smartlead.ai/api-reference
common:
- type: FinOps
  url: finops/smartlead-ai-finops.yml
- type: CapabilityMap
  url: capabilities/smartlead-ai-capability-edges.yml
  name: Smartlead Business Capability Map
- type: AgenticAccess
  url: agentic-access/smartlead-ai-agentic-access.yml
- type: AgentCard
  url: a2a/smartlead-ai-a2a.yml
- type: AgentSkill
  url: skills/_index.yml
- type: MCPServer
  url: mcp/smartlead-ai-mcp.yml
- type: ToolCrosswalk
  url: mcp/smartlead-ai-tool-crosswalk.yml
- type: LLMsTxt
  url: llms/smartlead-ai-llms.txt
- type: Authentication
  url: authentication/smartlead-ai-authentication.yml
- type: Conventions
  url: conventions/smartlead-ai-conventions.yml
- type: ErrorCatalog
  url: errors/smartlead-ai-problem-types.yml
- type: RateLimits
  url: rate-limits/smartlead-ai-rate-limits.yml
- type: Plans
  url: plans/smartlead-ai-plans-pricing.yml
- type: Lifecycle
  url: lifecycle/smartlead-ai-lifecycle.yml
- type: Webhooks
  url: asyncapi/smartlead-ai-webhooks.yml
- type: DataModel
  url: data-model/smartlead-ai-data-model.yml
- type: Conformance
  url: conformance/smartlead-ai-conformance.yml
- type: Compliance
  url: https://www.smartlead.ai/dpa
- type: Packages
  url: packages/smartlead-ai-packages.yml
- type: CLI
  url: cli/smartlead-ai-cli.yml
- type: Overlay
  url: overlays/smartlead-ai-openapi-overlay.yaml
- type: WellKnown
  url: well-known/smartlead-ai-well-known.yml
- type: DomainSecurity
  url: security/smartlead-ai-domain-security.yml
- type: Website
  url: https://www.smartlead.ai
- type: App
  url: https://app.smartlead.ai
- type: DeveloperPortal
  url: https://api.smartlead.ai/introduction
- type: Documentation
  url: https://api.smartlead.ai/introduction
- type: APIReference
  url: https://api.smartlead.ai/api-reference
- type: GettingStarted
  url: https://api.smartlead.ai/quickstart
- type: GitHubOrganization
  url: https://github.com/Smartlead-Public
- type: Roadmap
  url: https://roadmap.smartlead.ai
- type: Pricing
  url: https://www.smartlead.ai/pricing
- type: Blog
  url: https://www.smartlead.ai/blog
- type: SignUp
  url: https://app.smartlead.ai/signup
- type: Login
  url: https://app.smartlead.ai/login
- type: Support
  url: https://help.smartlead.ai
- type: Help
  url: https://help.smartlead.ai
- type: PrivacyPolicy
  url: https://www.smartlead.ai/privacy-policy
- type: TermsOfService
  url: https://www.smartlead.ai/new-terms-and-conditions
- type: LinkedIn
  url: https://www.linkedin.com/company/smartleadhq
- type: Twitter
  url: https://x.com/smartlead_ai
- type: YouTube
  url: https://www.youtube.com/@smartlead
- type: LlmsText
  url: https://api.smartlead.ai/llms.txt
- type: UsageTerms
  url: terms/smartlead-ai-terms-of-service.yml
- type: DataProcessing
  url: privacy/smartlead-ai-privacy-policy.yml
- type: Eligibility
  url: eligibility/smartlead-ai-eligibility.yml
- type: AIPreferences
  url: ai-preferences/smartlead-ai-ai-preferences.yml
- type: DataLicense
  url: data-license/smartlead-ai-data-license.yml
integrations:
- name: Clay
- name: HubSpot
- name: Salesforce
- name: Pipedrive
- name: Zapier
- name: Make
- name: n8n
- name: Slack
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 20
  pass: local-v1
x-a2a:
  verified: true
  probed: '2026-09-26'
  url: https://api.smartlead.ai/.well-known/agent-card.json
  grade: conformant
  protocol_version: '0.3'
  control: 404

Smartlead API — frequently asked questions

Does Smartlead have an API?

Yes. APIs.io lists 19 APIs from Smartlead, including Smartlead Campaigns API, Smartlead Leads API and Smartlead Email Accounts API, and 16 more.

Is there an OpenAPI specification for the Smartlead API?

Yes. APIs.io indexes 11 OpenAPI specifications for Smartlead, each linked for download from this page.

How do I authenticate with the Smartlead API?

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

How much does the Smartlead API cost?

Smartlead publishes its prices; its Base plan is $39/month as of 2026-10-28. APIs.io lists 16 pricing plans for Smartlead, with each plan's price, limits and inclusions under Pricing on this page.

Does Smartlead have an MCP server?

Yes. APIs.io lists 1 MCP server for Smartlead: SmartLead operates a remote MCP server on its documentation/API host. `tools/list` answered anonymously over Streamable HTTP (SSE), so the tool set below is the server's real, live manifest with its r

Is the Smartlead API ready for AI agents?

Smartlead has a Kin Score of 60.2 out of 100 (strong) and an Agent Readiness score of 42.0 (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/smartlead-ai"

All providers

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

Every operation they expose

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

How their score was established

curl "https://apis.io/api/v1/providers/smartlead-ai/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.