LeadGenius
LeadGenius provides precision B2B contact and account intelligence for go-to-market teams, combining machine learning with a global team of human researchers so every contact and account is human-verified before delivery. The company reports 400+ customers, coverage across 42 countries and 3 billion+ data records served, with products spanning contact behavioral intelligence, advanced contact tags, contact monitoring, social tracking, buying-committee coverage and privacy compliance. Its developer surface is the LeadGenius Enrichment API — a RESTful, API-key authenticated service documented at docs.leadgenius.com that supports company enrichment, contact enrichment and contact append, offered both as asynchronous Campaigns (create a campaign, upload up to 200 records per request, receive a record-finalized webhook, retrieve the enriched results) and as real-time "rapid enrichment" requests submitted and collected by id.
LeadGenius publishes 5 APIs on the APIs.io network, including Campaigns API, Exclusion API, Rapid Enrichment API, and 2 more. Tagged areas include Company, Data Enrichment, Lead Generation, Sales, and Marketing.
The LeadGenius catalog on APIs.io includes 1 event-driven AsyncAPI specification.
LeadGenius’ developer surface includes documentation, API reference, getting-started guide, signup flow, support, engineering blog, authentication, and 26 more developer resources.
Kin Score
APIs 5
Individual APIs this provider publishes, each with its own machine-readable definition.
LeadGenius Campaigns API
Create, update and inspect enrichment campaigns.
LeadGenius Exclusion API
Submit accounts and contacts that should be excluded from enrichment.
LeadGenius Rapid Enrichment API
Real-time single-record account/contact enrichment and contact append.
LeadGenius Records API
Upload records to a campaign and retrieve enriched results.
LeadGenius Usage API
Subscription usage and enrichment request statistics.
Open Collections 6
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONLeadGenius Enrichment Campaigns API
OPEN COLLECTIONLeadGenius Enrichment Campaigns Exclusion API
OPEN COLLECTIONLeadGenius Enrichment Campaigns Rapid Enrichment API
OPEN COLLECTIONLeadGenius Enrichment Campaigns Records API
OPEN COLLECTIONLeadGenius Enrichment Campaigns Usage API
OPEN COLLECTIONMCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
leadgenius-mcp.yml
MCP SERVERPricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Leadgenius Rate Limits
RATE LIMITSEvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Leadgenius Enrichment Webhooks
ASYNCAPISecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 4
Portal, sign-up, and the first successful call
Documentation 3
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 6
Pagination, idempotency, versioning, errors, and events
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 3
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 4
The organization behind the API
Other 2
Properties that don't map to a standard resource type