# LeadGenius

**Canonical:** https://apis.io/providers/leadgenius/  
**Website:** https://leadgenius.com  
**APIs profiled:** 5

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.

## Kin Score — 53.0 / 100 (developing)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 53.0).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 73.0 |
| Governance | 11.5 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 56.0 |
| Commercial Clarity | 42.1 |

## Agent readiness — 50.2 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| MCP Server | derived |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | partial |
| Rate Limit Signal | documented |
| Event Surface Described | yes |
| Agent Skills | derived |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (5)

- **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.

## MCP servers (1)

- **leadgenius-mcp.yml**

## Agentic access (1)

- **Leadgenius Agentic Access** — 11 operations · 5 acting

## Security (2)

- **Leadgenius Authentication** — apiKey · 1 scheme
- **Leadgenius Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Leadgenius Plans Pricing**

## Tags

Company, Data Enrichment, Lead Generation, Sales, Marketing, B2B Data, Contact Data, Firmographics, Go To Market, Account Based Marketing

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/leadgenius/). Scores are computed from the provider's own public artifacts under a published rubric.