The API Report CardAPI Index
LeadIQ

LeadIQ API

B2B Sales Prospecting & Contact Data (SDR-first) · leadiq.com

LeadIQ exposes a documented GraphQL API at api.leadiq.com/graphql for people and company search, list management, and prospect feedback. Every plan gets 50 test calls, but production access requires an Enterprise contract and a sales conversation. Usage is metered in credits.

Last verified: July 2026Marketing & Sales
API GRADE
A
VERIFIED JUL 2026

SCORECARD

ExistenceGOODGraphQL endpoint with open-source contract specs on GitHub plus a published MCP server for AI agents.
AccessPOORProduction access requires an Enterprise contract through sales; all other plans get just 50 one-off test calls.
CoverageGOODPeople and company search, advanced prospecting filters, list reads and writes, and prospect feedback mutations.
AuthGOODToken-based: keys are generated inside the LeadIQ web app and sent with each GraphQL request.
Docs & DXGOODDocs at developer.leadiq.com, help-center guides, and open-source API specs at github.com/leadiq.
StabilityGOOD
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Supergood: LeadIQ shipped a real API. Most vendors don't; we ship near-native APIs for the rest.

Frequently asked questions

LeadIQ scores A on the API Report Card. LeadIQ exposes a documented GraphQL API at api.leadiq.com/graphql for people and company search, list management, and prospect feedback. Every plan gets 50 test calls, but production access requires an Enterprise contract and a sales conversation. Usage is metered in credits.

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