Seamless.AI

Seamless.AI is a B2B sales intelligence platform that provides real-time contact and company data to help sales teams find and connect with their ideal customers. The platform uses artificial intelligence to continuously verify and update contact information including emails, direct dials, and mobile numbers. Seamless.AI offers a RESTful API secured with OAuth 2.0 and API key authentication, enabling developers to integrate contact search, company search, enrichment, and job-change intelligence directly into CRM systems, marketing platforms, and internal sales tools.

Seamless.AI publishes 4 APIs on the APIs.io network, including Companies API, Contacts API, Enrichment API, and 1 more. Tagged areas include B2B, Contact Data, Sales Intelligence, Prospecting, and Lead Generation.

The Seamless.AI catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Seamless.AI’s developer surface includes authentication, documentation, getting-started guide, engineering blog, code examples, and 13 more developer resources.

🌐 Visit website 📡 Source on GitHub

50.9/100 developing ▬ flat Agent 32/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemiumSelf serve⚡ Free to try

4 APIs

B2BContact DataSales IntelligenceProspectingLead GenerationCRM Enrichment

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 50.9/100 · developing

Contract Quality 16.7 / 25

Developer Ergonomics 6.5 / 20

Commercial Clarity 7.9 / 20

Operational Transparency 4.1 / 13

Governance 8.3 / 12

Discoverability 7.4 / 10

Agent readiness — 32/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 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

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/seamless-ai: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 4

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

Rate Limits 1

Documented rate limits and quota policies.

Seamless Ai Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

JSON Schema 2

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

Examples 1

Example request and response payloads for these APIs.

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

JSONSchema

JSONSchema

JSONSchema

JSONSchema

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

JSONStructure

JSONLDContext

SpectralRuleset

Vocabulary

Build 1

SDKs, sample code, and the tooling you integrate with

Examples

Examples

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Overview

Overview

Glossary

Glossary

Source (apis.yml)

aid: seamless-ai
url: https://raw.githubusercontent.com/api-evangelist/seamless-ai/refs/heads/main/apis.yml
apis:
- aid: seamless-ai:seamless-ai-companies-api
  name: Seamless.AI Companies API
  description: The Companies API from Seamless.AI — 3 operation(s) for companies.
  humanURL: https://docs.seamless.ai/
  baseURL: https://api.seamless.ai
  tags:
  - Companies
  properties:
  - type: OpenAPI
    url: openapi/seamless-ai-companies-api-openapi.yml
  - type: Documentation
    url: https://docs.seamless.ai/
- aid: seamless-ai:seamless-ai-contacts-api
  name: Seamless.AI Contacts API
  description: The Contacts API from Seamless.AI — 4 operation(s) for contacts.
  humanURL: https://docs.seamless.ai/
  baseURL: https://api.seamless.ai
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/seamless-ai-contacts-api-openapi.yml
  - type: Documentation
    url: https://docs.seamless.ai/
- aid: seamless-ai:seamless-ai-enrichment-api
  name: Seamless.AI Enrichment API
  description: The Enrichment API from Seamless.AI — 2 operation(s) for enrichment.
  humanURL: https://docs.seamless.ai/
  baseURL: https://api.seamless.ai
  tags:
  - Enrichment
  properties:
  - type: OpenAPI
    url: openapi/seamless-ai-enrichment-api-openapi.yml
  - type: Documentation
    url: https://docs.seamless.ai/
- aid: seamless-ai:seamless-ai-job-changes-api
  name: Seamless.AI Job Changes API
  description: The Job Changes API from Seamless.AI — 1 operation(s) for job changes.
  humanURL: https://docs.seamless.ai/
  baseURL: https://api.seamless.ai
  tags:
  - Job Changes
  properties:
  - type: OpenAPI
    url: openapi/seamless-ai-job-changes-api-openapi.yml
  - type: Documentation
    url: https://docs.seamless.ai/
name: Seamless.AI
tags:
- B2B
- Contact Data
- Sales Intelligence
- Prospecting
- Lead Generation
- CRM Enrichment
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/seamless-ai.png
access: 3rd-Party
created: '2026-05-02'
modified: '2026-05-19'
position: Consuming
description: Seamless.AI is a B2B sales intelligence platform that provides real-time contact and company data to help sales
  teams find and connect with their ideal customers. The platform uses artificial intelligence to continuously verify and
  update contact information including emails, direct dials, and mobile numbers. Seamless.AI offers a RESTful API secured
  with OAuth 2.0 and API key authentication, enabling developers to integrate contact search, company search, enrichment,
  and job-change intelligence directly into CRM systems, marketing platforms, and internal sales tools.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
specificationVersion: '0.19'
common:
- type: AgenticAccess
  url: agentic-access/seamless-ai-agentic-access.yml
- type: DomainSecurity
  url: security/seamless-ai-domain-security.yml
- type: Authentication
  url: authentication/seamless-ai-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/seamlessai
- name: Website
  url: https://seamless.ai
  type: Website
- name: API Documentation
  url: https://docs.seamless.ai/
  type: Documentation
- name: API Overview
  url: https://seamless.ai/products/api
  type: Overview
- name: Getting Started
  url: https://seamless.ai/customers/education/articles/seamless-ai-api-overview
  type: GettingStarted
- name: API Terms Glossary
  url: https://seamless.ai/customers/education/articles/api-terms-glossary
  type: Glossary
- name: CRM Enrichment
  url: https://seamless.ai/news/releases/api
  type: Blog
- url: json-schema/seamless-ai-contact-schema.json
  type: JSONSchema
- url: json-schema/seamless-ai-company-schema.json
  type: JSONSchema
- url: json-structure/seamless-ai-contact-structure.json
  type: JSONStructure
- url: json-ld/seamless-ai-context.jsonld
  type: JSONLDContext
- url: examples/seamless-ai-search-contacts-example.json
  type: Examples
- url: rules/seamless-ai-rules.yml
  type: SpectralRuleset
- url: vocabulary/seamless-ai-vocabulary.yml
  type: Vocabulary
- type: LlmsText
  url: https://docs.seamless.ai/llms.txt

Seamless.AI

APIs 4

Open Collections 2

Pricing Plans 1