# Leadex API > Chat-native lead research, programmatically. Start a thread, describe your ideal customer in natural language, and Leadex plans + runs a research job and returns verified leads as artifacts (CSV, JSON, webhook). The Leadex API is REST + JSON, authenticated with a bearer token, served at `https://api.getleadex.com/v1`. The human-readable reference below is rendered from `openapi.yaml` (OpenAPI 3.1) - the spec is the source of truth. ## Reference - [Full API reference](https://docs.getleadex.com/): rendered docs - endpoints, objects, errors, webhooks, SDKs, glossary - [OpenAPI 3.1 spec](https://docs.getleadex.com/openapi.yaml): machine-readable source of truth ## Getting started - [Authentication](https://docs.getleadex.com/#authentication): bearer token in `Authorization: Bearer ...` - [Base URL & versioning](https://docs.getleadex.com/#base-url): `https://api.getleadex.com/v1` - [Quickstart](https://docs.getleadex.com/#quickstart): first call in under a minute - [Errors](https://docs.getleadex.com/#errors), [Rate limits](https://docs.getleadex.com/#rate-limits), [Idempotency](https://docs.getleadex.com/#idempotency), [Pagination](https://docs.getleadex.com/#pagination) ## Core objects - [Thread](https://docs.getleadex.com/#object-thread): the chat container - [Message](https://docs.getleadex.com/#object-message): user + assistant turns in a thread - [Plan](https://docs.getleadex.com/#object-plan): proposed research steps, subject to approval - [Job](https://docs.getleadex.com/#object-job): a running or finished research execution - [Artifact](https://docs.getleadex.com/#object-artifact): structured output (CSV / JSON) produced by a job - [Lead](https://docs.getleadex.com/#object-lead): an enriched contact row inside an artifact ## Endpoints - [Threads](https://docs.getleadex.com/#ep-threads), [Messages](https://docs.getleadex.com/#ep-messages) - [Plans](https://docs.getleadex.com/#ep-plans), [Jobs](https://docs.getleadex.com/#ep-jobs), [Streaming](https://docs.getleadex.com/#ep-stream) - [Artifacts & leads](https://docs.getleadex.com/#ep-artifacts), [Search (one-shot)](https://docs.getleadex.com/#ep-search) - [Integrations](https://docs.getleadex.com/#ep-integrations), [Webhooks](https://docs.getleadex.com/#ep-webhooks) - [Usage & credits](https://docs.getleadex.com/#ep-usage), [Account & keys](https://docs.getleadex.com/#ep-account) ## Product - [Marketing site](https://getleadex.com/): overview, capabilities, pricing - [Web app](https://app.getleadex.com/): signed-in UI for the same API - [Privacy policy](https://getleadex.com/privacy.html) - [Terms of service](https://getleadex.com/terms.html)