Adapt

Adapt (adapt.io) is a B2B lead intelligence and sales acceleration platform that provides a database of 250M+ verified business contacts, 16M+ decision makers, and 12M+ company profiles, refreshed at roughly 5M records per day. Adapt sells the data three ways — through a web Prospector for list building and ABM, a LinkedIn/website Chrome extension for in-context contact discovery, and a public REST API for programmatic search, enrichment, and contact purchase. The Prospect API exposes four operations (contact search, company search, contact enrichment, and contact purchase / fetch) with 50+ firmographic, technographic, and demographic attributes per record, header- based authentication via account email + API key, and a 250 requests-per- minute rate limit. Pricing is published for self-serve Free, Starter ($49/mo) and Basic ($99/mo) tiers; API access is gated to the custom enterprise plan with negotiated email, phone, and enrichment credit allotments. Adapt is primarily used by sales, marketing, and RevOps teams for outbound campaigns, CRM enrichment, lead scoring, ICP list building, and data hygiene, with CRM exports to Salesforce, HubSpot, Pipedrive, Zoho, Outreach, and Salesgear.

Adapt publishes 4 APIs on the APIs.io network, including Company Search API, Contact Enrichment API, Contact Purchase API, and 1 more. Tagged areas include B2B Data, Contact Data, Company Data, Lead Intelligence, and Sales Intelligence.

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

Adapt’s developer surface includes authentication, developer portal, documentation, getting-started guide, signup flow, pricing, engineering blog, and 33 more developer resources.

🌐 Visit website 📡 Source on GitHub

57.0/100 strong ▬ flat Agent 27/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs 14 Features

B2B Data Contact Data Company Data Lead Intelligence Sales IntelligenceSales AccelerationData Enrichment Prospecting Lead Generation Email Finder Account Based Marketing CRM Enrichment Marketing Sales

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 57.0/100 · strong

Contract Quality 15.7 / 23

Developer Ergonomics 10.8 / 18

Access Clarity 15.2 / 18

Operational Transparency 2.5 / 12

Contract Governance 1.6 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 27/100 · 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 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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

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.

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 github.com/api-evangelist/adapt-io: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 4

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

Adapt Company Search API

Search the company database using firmographic filters.

Adapt Contact Enrichment API

Enrich a known contact with verified email and phone data.

Adapt Contact Purchase API

Purchase contacts returned from search to reveal email and phone.

Adapt Contact Search API

Search the contact database using contact and company filters.

Postman Collections 4

Ready-to-run Postman collections for exercising this provider's APIs.

Adapt Prospect Company Search API

POSTMAN

Adapt Prospect Company Search Contact Enrichment API

POSTMAN

Adapt Prospect Company Search Contact Purchase API

POSTMAN

Adapt Prospect Company Search Contact Search API

POSTMAN

Open Collections 6

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

API Collection

OPEN COLLECTION

Adapt Prospect Company Search API

OPEN COLLECTION

Adapt Prospect Company Search Contact Enrichment API

OPEN COLLECTION

Adapt Prospect Company Search Contact Purchase API

OPEN COLLECTION

Adapt Prospect Company Search Contact Search API

OPEN COLLECTION

Adapt Prospect API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Adapt Io Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Adapt Io Rate Limits

1 limits

RATE LIMITS

FinOps 1

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

Adapt Io Finops

FINOPS

Features 14

Notable capabilities this provider offers.

250M+ verified B2B contact database with 50+ attributes per record

16M+ decision-maker profiles and 12M+ company profiles

~5M records refreshed daily through ML-assisted data hygiene

Prospect API with contact search, company search, enrichment, and purchase endpoints

Header-based authentication (email + apiKey) with 250 requests-per-minute rate limit

Cursor-based pagination via cursorMark for high-volume search

Email deliverability scoring with 75 / 85 / 95 minimum thresholds

Technographic filtering (technology stack) and exact-title matching

Suppression list support to filter previously-contacted or owned contacts

Chrome extension for in-context prospecting from LinkedIn and company websites

CRM export to Salesforce, HubSpot, Pipedrive, Zoho, Outreach, and Salesgear

Job-change alerts and department-growth tracking on the Custom plan

Free, Starter ($49/mo), Basic ($99/mo), and Custom (API-enabled) plans

7-day free trial without credit card and 20% annual-billing discount

Scroll for all 14

Semantic Vocabularies 1

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

Adapt Io Context

0 classes · 3 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Adapt API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 2

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

Adapt Company

12 properties

JSON SCHEMA

Adapt Contact

14 properties

JSON SCHEMA

Examples 2

Example request and response payloads for these APIs.

Adapt Contact Enrich Example

4 fields

EXAMPLE

Adapt Contact Search Example

4 fields

EXAMPLE

Security Posture 2

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

Adapt Io Authentication

apiKey · 2 schemes

SECURITY

Adapt Io Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Adapt Io Agentic Access

4 operations · 4 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

Portal

Portal

GettingStarted

GettingStarted

SignUp

SignUp

Login

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

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

Extension

Extension

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

ContactUs

ContactUs

Support

Support

Commercial 5

Pricing, plans, and the legal terms of use

Pricing

Plans

FinOps

PrivacyPolicy

TermsOfService

Company 5

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Twitter

Twitter

Partners

Partners

Other 7

Properties that don't map to a standard resource type

Product

Product

Product

Product

Directory

Source (apis.yml)

aid: adapt-io
name: Adapt
description: Adapt (adapt.io) is a B2B lead intelligence and sales acceleration platform that provides a database of 250M+
  verified business contacts, 16M+ decision makers, and 12M+ company profiles, refreshed at roughly 5M records per day. Adapt
  sells the data three ways — through a web Prospector for list building and ABM, a LinkedIn/website Chrome extension for
  in-context contact discovery, and a public REST API for programmatic search, enrichment, and contact purchase. The Prospect
  API exposes four operations (contact search, company search, contact enrichment, and contact purchase / fetch) with 50+
  firmographic, technographic, and demographic attributes per record, header- based authentication via account email + API
  key, and a 250 requests-per- minute rate limit. Pricing is published for self-serve Free, Starter ($49/mo) and Basic ($99/mo)
  tiers; API access is gated to the custom enterprise plan with negotiated email, phone, and enrichment credit allotments.
  Adapt is primarily used by sales, marketing, and RevOps teams for outbound campaigns, CRM enrichment, lead scoring, ICP
  list building, and data hygiene, with CRM exports to Salesforce, HubSpot, Pipedrive, Zoho, Outreach, and Salesgear.
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
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-09-03'
  method: derived
position: Producing
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/adapt-io.png
tags:
- B2B Data
- Contact Data
- Company Data
- Lead Intelligence
- Sales Intelligence
- Sales Acceleration
- Data Enrichment
- Prospecting
- Lead Generation
- Email Finder
- Account Based Marketing
- CRM Enrichment
- Marketing
- Sales
tags_raw:
- B2B Data
- Contact Data
- Company Data
- Lead Intelligence
- Sales Intelligence
- Sales Acceleration
- Data Enrichment
- Prospecting
- Lead Generation
- Email Finder
- ABM
- CRM Enrichment
- Marketing
- Sales
url: https://raw.githubusercontent.com/api-evangelist/adapt-io/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-08-13'
specificationVersion: '0.23'
apis:
- aid: adapt-io:adapt-io-company-search-api
  name: Adapt Company Search API
  description: Search the company database using firmographic filters.
  humanURL: https://www.adapt.io/api-docs/v3/
  baseURL: https://api.adapt.io/v3
  tags:
  - Company Search
  properties:
  - type: OpenAPI
    url: openapi/adapt-io-company-search-api-openapi.yml
  - type: Overlay
    url: overlays/adapt-io-company-search-api-overlay.yaml
  - type: Documentation
    url: https://www.adapt.io/api-docs/v3/
  - type: Documentation
    url: https://www.adapt.io/platform/api
  - type: JSONSchema
    url: json-schema/adapt-contact-schema.json
  - type: JSONSchema
    url: json-schema/adapt-company-schema.json
  - type: JSONLD
    url: json-ld/adapt-io-context.jsonld
  - type: Examples
    url: examples/adapt-contact-search-example.json
  - type: Examples
    url: examples/adapt-contact-enrich-example.json
- aid: adapt-io:adapt-io-contact-enrichment-api
  name: Adapt Contact Enrichment API
  description: Enrich a known contact with verified email and phone data.
  humanURL: https://www.adapt.io/api-docs/v3/
  baseURL: https://api.adapt.io/v3
  tags:
  - Contact Enrichment
  properties:
  - type: OpenAPI
    url: openapi/adapt-io-contact-enrichment-api-openapi.yml
  - type: Overlay
    url: overlays/adapt-io-contact-enrichment-api-overlay.yaml
  - type: Documentation
    url: https://www.adapt.io/api-docs/v3/
  - type: Documentation
    url: https://www.adapt.io/platform/api
  - type: JSONSchema
    url: json-schema/adapt-contact-schema.json
  - type: JSONSchema
    url: json-schema/adapt-company-schema.json
  - type: JSONLD
    url: json-ld/adapt-io-context.jsonld
  - type: Examples
    url: examples/adapt-contact-search-example.json
  - type: Examples
    url: examples/adapt-contact-enrich-example.json
- aid: adapt-io:adapt-io-contact-purchase-api
  name: Adapt Contact Purchase API
  description: Purchase contacts returned from search to reveal email and phone.
  humanURL: https://www.adapt.io/api-docs/v3/
  baseURL: https://api.adapt.io/v3
  tags:
  - Contact Purchase
  properties:
  - type: OpenAPI
    url: openapi/adapt-io-contact-purchase-api-openapi.yml
  - type: Overlay
    url: overlays/adapt-io-contact-purchase-api-overlay.yaml
  - type: Documentation
    url: https://www.adapt.io/api-docs/v3/
  - type: Documentation
    url: https://www.adapt.io/platform/api
  - type: JSONSchema
    url: json-schema/adapt-contact-schema.json
  - type: JSONSchema
    url: json-schema/adapt-company-schema.json
  - type: JSONLD
    url: json-ld/adapt-io-context.jsonld
  - type: Examples
    url: examples/adapt-contact-search-example.json
  - type: Examples
    url: examples/adapt-contact-enrich-example.json
- aid: adapt-io:adapt-io-contact-search-api
  name: Adapt Contact Search API
  description: Search the contact database using contact and company filters.
  humanURL: https://www.adapt.io/api-docs/v3/
  baseURL: https://api.adapt.io/v3
  tags:
  - Contact Search
  properties:
  - type: OpenAPI
    url: openapi/adapt-io-contact-search-api-openapi.yml
  - type: Overlay
    url: overlays/adapt-io-contact-search-api-overlay.yaml
  - type: Documentation
    url: https://www.adapt.io/api-docs/v3/
  - type: Documentation
    url: https://www.adapt.io/platform/api
  - type: JSONSchema
    url: json-schema/adapt-contact-schema.json
  - type: JSONSchema
    url: json-schema/adapt-company-schema.json
  - type: JSONLD
    url: json-ld/adapt-io-context.jsonld
  - type: Examples
    url: examples/adapt-contact-search-example.json
  - type: Examples
    url: examples/adapt-contact-enrich-example.json
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/adapt/overview
- type: AgenticAccess
  url: agentic-access/adapt-io-agentic-access.yml
- type: DomainSecurity
  url: security/adapt-io-domain-security.yml
- type: Authentication
  url: authentication/adapt-io-authentication.yml
- type: Website
  url: https://www.adapt.io
- type: Portal
  url: https://www.adapt.io/platform/api
- type: Documentation
  url: https://www.adapt.io/api-docs/v3/
- type: GettingStarted
  url: https://www.adapt.io/api-docs/v3/
- type: SignUp
  url: https://www.adapt.io/free-trial
- type: Login
  url: https://www.adapt.io/login.htm
- type: Pricing
  url: https://www.adapt.io/pricing
- type: Plans
  url: plans/adapt-io-plans-pricing.yml
- type: RateLimits
  url: rate-limits/adapt-io-rate-limits.yml
- type: FinOps
  url: finops/adapt-io-finops.yml
- type: Product
  url: https://www.adapt.io/platform/prospecting
- type: Product
  url: https://www.adapt.io/platform/api
- type: Product
  url: https://www.adapt.io/data-os
- type: Product
  url: https://www.adapt.io/our-data
- type: Extension
  url: https://chromewebstore.google.com/detail/adapt-prospector/lkfklokpfbpcmpdacencdkjncpojdgff
  name: Adapt Prospector Chrome Extension
- type: Directory
  url: https://www.adapt.io/directory/industry
- type: Blog
  url: https://www.adapt.io/blog/
- type: Company
  url: https://www.adapt.io/about
- type: Customers
  url: https://www.adapt.io/customer-stories
- type: ContactUs
  url: https://www.adapt.io/contact-us/
- type: PrivacyPolicy
  url: https://www.adapt.io/privacy.htm
- type: TermsOfService
  url: https://www.adapt.io/termsAndConditions.htm
- type: LinkedIn
  url: https://www.linkedin.com/company/adapt-io
- type: Twitter
  url: https://twitter.com/adapt_io
- type: Packages
  url: packages/adapt-io-packages.yml
- type: X-MCPServerCandidate
  url: mcp/adapt-io-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: LLMsTxt
  url: llms/adapt-io-llms.txt
- type: Conventions
  url: conventions/adapt-io-conventions.yml
- type: ErrorCatalog
  url: errors/adapt-io-problem-types.yml
- type: Lifecycle
  url: lifecycle/adapt-io-lifecycle.yml
- type: Conformance
  url: conformance/adapt-io-conformance.yml
- type: DataModel
  url: data-model/adapt-io-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: APIReference
  url: https://www.adapt.io/api-docs/v3/
- type: Support
  url: https://www.adapt.io/contact-us/
- type: Partners
  url: https://www.adapt.io/adapt-partnership
- type: Features
  data:
  - 250M+ verified B2B contact database with 50+ attributes per record
  - 16M+ decision-maker profiles and 12M+ company profiles
  - ~5M records refreshed daily through ML-assisted data hygiene
  - Prospect API with contact search, company search, enrichment, and purchase endpoints
  - Header-based authentication (email + apiKey) with 250 requests-per-minute rate limit
  - Cursor-based pagination via cursorMark for high-volume search
  - Email deliverability scoring with 75 / 85 / 95 minimum thresholds
  - Technographic filtering (technology stack) and exact-title matching
  - Suppression list support to filter previously-contacted or owned contacts
  - Chrome extension for in-context prospecting from LinkedIn and company websites
  - CRM export to Salesforce, HubSpot, Pipedrive, Zoho, Outreach, and Salesgear
  - Job-change alerts and department-growth tracking on the Custom plan
  - Free, Starter ($49/mo), Basic ($99/mo), and Custom (API-enabled) plans
  - 7-day free trial without credit card and 20% annual-billing discount
  sources:
  - https://www.adapt.io
  - https://www.adapt.io/pricing
  - https://www.adapt.io/our-data
  - https://www.adapt.io/platform/api
  - https://www.adapt.io/api-docs/v3/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 17
  pass: local-v1

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