FullEnrich

FullEnrich is a B2B contact enrichment platform that finds verified business emails, personal emails and mobile phone numbers by running a waterfall across 25+ data vendors, billing credits only when data is found and passes verification. Its v2 REST API covers four surfaces — asynchronous bulk contact enrichment, bulk reverse email lookup, and synchronous people/company search and lookup across 800M people and 50M companies. Alongside the REST API it operates a first-party remote MCP server with 13 tools, publishes nine MIT-licensed Agent Skills, serves an A2A agent card, and maintains a machine-readable pricing document written for AI agents to read.

FullEnrich publishes 5 APIs on the APIs.io network, including Contact Enrichment API, Reverse Email Lookup API, Search API, and 2 more. Tagged areas include B2B Data, Contact Enrichment, Email Finder, Phone Finder, and Waterfall Enrichment.

The FullEnrich catalog on APIs.io includes 1 event-driven AsyncAPI specification.

FullEnrich’s developer surface includes authentication, sandbox, documentation, API reference, getting-started guide, support, engineering blog, and 33 more developer resources.

🌐 Visit website 📡 Source on GitHub

62.7/100 strong ▬ flat Agent 61/100 agent ready Full breakdown ↓
scored 2026-08-24 · rubric v0.13.0

AccessFreemiumSelf serveFree trial⚡ Free to try

6 APIs 1 MCP Servers

B2B Data Contact Enrichment Email Finder Phone FinderWaterfall EnrichmentSales Intelligence People Search Company Search Reverse Email Lookup Agent Ready

Kin Score

Kin Score How this is scored →
scored 2026-08-24 · rubric v0.13.0

Composite quality — 62.7/100 · strong

Contract Quality 17.0 / 25

Developer Ergonomics 8.6 / 20

Access Clarity 17.4 / 20

Operational Transparency 6.8 / 13

Contract Governance 3.6 / 12

Discoverability 9.3 / 10

Agent readiness — 61/100 · 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

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/fullenrich: 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 6

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

MCP Servers 1

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

Rate Limits 1

Documented rate limits and quota policies.

Fullenrich Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Scopes 1

OAuth scopes governing access to this provider's APIs.

Fullenrich Scopes

14 scopes · authorizationCode/clientCredentials

14 scopes

SCOPES

Get Started 4

Portal, sign-up, and the first successful call

Sandbox

DeveloperPortal

GettingStarted

SignUp

Documentation 3

Reference material describing how the API behaves

OpenAPI

OpenAPI

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

MCPServer

AgentSkill

LLMsTxt

WellKnown

AgenticAccess

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

DataModel

Webhooks

Lifecycle

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 7

Authentication, authorization, and security posture

Authentication

OAuthScopes

Compliance

TrustCenter

Security

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Scroll for all 7

Operate 3

Status, limits, changes, and where to get help

StatusPage

StatusPage

RateLimits

RateLimits

Support

Support

Commercial 5

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

Blog

Blog

LinkedIn

Website

Website

Other 1

Properties that don't map to a standard resource type

AgentCard

AgentCard

Source (apis.yml)

aid: fullenrich
url: https://raw.githubusercontent.com/api-evangelist/fullenrich/refs/heads/main/apis.yml
name: FullEnrich
kind: company
description: FullEnrich is a B2B contact enrichment platform that finds verified business emails, personal emails and mobile
  phone numbers by running a waterfall across 25+ data vendors, billing credits only when data is found and passes verification.
  Its v2 REST API covers four surfaces — asynchronous bulk contact enrichment, bulk reverse email lookup, and synchronous
  people/company search and lookup across 800M people and 50M companies. Alongside the REST API it operates a first-party
  remote MCP server with 13 tools, publishes nine MIT-licensed Agent Skills, serves an A2A agent card, and maintains a machine-readable
  pricing document written for AI agents to read.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  label: Freemium (free trial) · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-08-14'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/fullenrich.png
tags:
- B2B Data
- Contact Enrichment
- Email Finder
- Phone Finder
- Waterfall Enrichment
- Sales Intelligence
- People Search
- Company Search
- Reverse Email Lookup
- Agent Ready
created: '2026-07-01'
modified: '2026-08-14'
specificationVersion: '0.23'
apis:
- aid: fullenrich:fullenrich-contact-enrichment-api
  name: FullEnrich Contact Enrichment API
  description: Submit up to 100 contacts per request for asynchronous waterfall enrichment across 25+ data sources, then collect
    the most probable work email, personal email and mobile phone by webhook or by polling the results endpoint.
  humanURL: https://docs.fullenrich.com/api/v2/contact/enrich/bulk/post
  baseURL: https://app.fullenrich.com/api/v2
  tags:
  - Contact Enrichment
  - Email Finder
  - Phone Finder
  - Waterfall Enrichment
  properties:
  - type: OpenAPI
    url: openapi/fullenrich-contact-enrichment-api-openapi.yml
  - type: Overlay
    url: overlays/fullenrich-contact-enrichment-api-overlay.yaml
  - type: Documentation
    url: https://docs.fullenrich.com/api/v2/contact/enrich/bulk/post
  - type: APIReference
    url: https://docs.fullenrich.com/api/v2/contact/enrich/bulk/post
  - type: PostmanCollection
    url: collections/fullenrich-contact-enrichment-api.postman_collection.json
  - type: OpenCollection
    url: collections/fullenrich-contact-enrichment-api.opencollection.json
- aid: fullenrich:fullenrich-reverse-email-lookup-api
  name: FullEnrich Reverse Email Lookup API
  description: Resolve the person and company behind one or more email addresses in bulk, asynchronously, returning the full
    profile and employment history.
  humanURL: https://docs.fullenrich.com/api/v2/contact/reverse/email/bulk/post
  baseURL: https://app.fullenrich.com/api/v2
  tags:
  - Reverse Email Lookup
  - Identity Resolution
  properties:
  - type: OpenAPI
    url: openapi/fullenrich-reverse-email-lookup-api-openapi.yml
  - type: Overlay
    url: overlays/fullenrich-reverse-email-lookup-api-overlay.yaml
  - type: Documentation
    url: https://docs.fullenrich.com/api/v2/contact/reverse/email/bulk/post
  - type: APIReference
    url: https://docs.fullenrich.com/api/v2/contact/reverse/email/bulk/get
  - type: PostmanCollection
    url: collections/fullenrich-reverse-email-lookup-api.postman_collection.json
  - type: OpenCollection
    url: collections/fullenrich-reverse-email-lookup-api.opencollection.json
- aid: fullenrich:fullenrich-search-api
  name: FullEnrich Search API
  description: Synchronously search 800M people and 50M companies with structured filters across role, seniority, function,
    industry, location, company size and more. Values within a field are OR'd; fields are AND'd.
  humanURL: https://docs.fullenrich.com/api/v2/people/search/post
  baseURL: https://app.fullenrich.com/api/v2
  tags:
  - People Search
  - Company Search
  - Sales Intelligence
  properties:
  - type: OpenAPI
    url: openapi/fullenrich-search-api-openapi.yml
  - type: Overlay
    url: overlays/fullenrich-search-api-overlay.yaml
  - type: Documentation
    url: https://docs.fullenrich.com/api/v2/general/intro-search
  - type: APIReference
    url: https://docs.fullenrich.com/api/v2/people/search/post
  - type: Documentation
    url: https://docs.fullenrich.com/api/v2/general/filtering-logic-explained
  - type: Vocabulary
    url: https://docs.fullenrich.com/api/v2/general/enums
- aid: fullenrich:fullenrich-lookup-api
  name: FullEnrich Lookup API
  description: Look up a single best-matching person or company from deterministic identifiers — professional network URL
    or ID, company domain, or full name plus a company identifier.
  humanURL: https://docs.fullenrich.com/api/v2/people/lookup/post
  baseURL: https://app.fullenrich.com/api/v2
  tags:
  - Lookup
  - Identity Resolution
  properties:
  - type: OpenAPI
    url: openapi/fullenrich-lookup-api-openapi.yml
  - type: Overlay
    url: overlays/fullenrich-lookup-api-overlay.yaml
  - type: Documentation
    url: https://docs.fullenrich.com/api/v2/people/lookup/post
  - type: APIReference
    url: https://docs.fullenrich.com/api/v2/company/lookup/post
- aid: fullenrich:fullenrich-account-api
  name: FullEnrich Account API
  description: Check the workspace credit balance before spending, and validate that an API key is active. Both operations
    are free.
  humanURL: https://docs.fullenrich.com/api/v2/account/credits/get
  baseURL: https://app.fullenrich.com/api/v2
  tags:
  - Account
  - Credits
  - Billing
  properties:
  - type: OpenAPI
    url: openapi/fullenrich-account-api-openapi.yml
  - type: Overlay
    url: overlays/fullenrich-account-api-overlay.yaml
  - type: Documentation
    url: https://docs.fullenrich.com/api/v2/account/credits/get
  - type: APIReference
    url: https://docs.fullenrich.com/api/v2/account/keys/verify/get
  - type: PostmanCollection
    url: collections/fullenrich-account-api.postman_collection.json
  - type: OpenCollection
    url: collections/fullenrich-account-api.opencollection.json
- aid: fullenrich:fullenrich-mcp-server
  name: FullEnrich MCP Server
  description: First-party remote Model Context Protocol server exposing 13 tools for B2B contact and company search, waterfall
    enrichment, and CSV/JSON export. Streamable HTTP transport with browser OAuth against a FullEnrich account.
  humanURL: https://help.fullenrich.com/en/articles/14190120-mcp-server
  baseURL: https://mcp.fullenrich.com/mcp
  tags:
  - MCP
  - Agent Ready
  - Contact Enrichment
  properties:
  - type: MCPServer
    url: mcp/fullenrich-mcp.yml
  - type: ToolCrosswalk
    url: mcp/fullenrich-tool-crosswalk.yml
  - type: Documentation
    url: mcp/fullenrich-mcp-documentation.md
  - type: Documentation
    url: https://help.fullenrich.com/en/articles/14190120-mcp-server
common:
- type: OpenAPI
  url: openapi/_original/fullenrich-openapi.yml
- type: MCPServer
  url: mcp/fullenrich-mcp.yml
- type: ToolCrosswalk
  url: mcp/fullenrich-tool-crosswalk.yml
- type: AgentCard
  url: a2a/fullenrich-a2a.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/fullenrich-llms.txt
- type: WellKnown
  url: well-known/fullenrich-well-known.yml
- type: Authentication
  url: authentication/fullenrich-authentication.yml
- type: OAuthScopes
  url: scopes/fullenrich-scopes.yml
- type: Conventions
  url: conventions/fullenrich-conventions.yml
- type: ErrorCatalog
  url: errors/fullenrich-problem-types.yml
- type: DataModel
  url: data-model/fullenrich-data-model.yml
- type: Webhooks
  url: asyncapi/fullenrich-webhooks.yml
- type: Lifecycle
  url: lifecycle/fullenrich-lifecycle.yml
- type: StatusPage
  url: https://status.fullenrich.com
- type: Sandbox
  url: sandbox/fullenrich-sandbox.yml
- type: Packages
  url: packages/fullenrich-packages.yml
- type: Conformance
  url: conformance/fullenrich-conformance.yml
- type: Compliance
  url: https://fullenrich.com/trust
- type: TrustCenter
  url: security/fullenrich-trust-center.yml
- type: Security
  url: https://github.com/FullEnrich/fullenrich-skills/blob/HEAD/SECURITY.md
- type: VulnerabilityDisclosure
  url: security/fullenrich-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/fullenrich-domain-security.yml
- type: AgenticAccess
  url: agentic-access/fullenrich-agentic-access.yml
- type: Plans
  url: plans/fullenrich-plans-pricing.yml
- type: RateLimits
  url: rate-limits/fullenrich-rate-limits.yml
- type: FinOps
  url: finops/fullenrich-finops.yml
- type: DeveloperPortal
  url: https://docs.fullenrich.com
- type: Documentation
  url: https://docs.fullenrich.com
- type: APIReference
  url: https://docs.fullenrich.com/api/v2/general/introduction
- type: GettingStarted
  url: https://docs.fullenrich.com/api/v2/implement-in-product/getting-started
- type: Support
  url: https://help.fullenrich.com
- type: Blog
  url: https://fullenrich.com/blog
- type: GitHubOrganization
  url: https://github.com/FullEnrich
- type: LinkedIn
  url: https://www.linkedin.com/company/fullenrich
- type: Website
  url: https://fullenrich.com
- type: Pricing
  url: https://fullenrich.com/pricing
- type: SignUp
  url: https://app.fullenrich.com/app/signUp
- type: TermsOfService
  url: https://fullenrich.com/tos
- type: PrivacyPolicy
  url: https://fullenrich.com/privacy-policy
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-14'
  status: enriched
  artifacts_added: 38
  pass: local-v1

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