# LeanData Legacy (still supported) API

**Canonical:** https://apis.io/apis/leandata/leandata-legacy-still-supported-api/  
**Provider:** LeanData — https://apis.io/providers/leandata/  
**Base URL:** https://api.leandata.com  
**Documentation:** https://docs.leandata.com

LeanData Legacy (still supported) API is one of 9 APIs that [LeanData](https://apis.io/providers/leandata/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Legacy (still supported). The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

<p>This section outlines the endpoints used to retrieve scheduling data for building a custom calendaring experience. Both endpoints return the same structure of <strong>read-only</strong> information—including scheduling metadata, working hours, available time slots, and configured users—that can be used to render the scheduling page.</p> <ul> <li><p><strong><code>v1/scheduling/retrieve-info</code></strong> — Use this endpoint <strong>when booking a meeting</strong> <strong>for the first time</strong>.</p> </li> <li><p><strong><code>v1/scheduling/retrieve-modification-info</code></strong> — Use this endpoint <strong>when modifying an existing meeting</strong>, such as rescheduling or canceling.</p> </li> </ul> <p>These endpoints provide all the data needed to power the UI for selecting a meeting time and pre-populating prospect details.</p>

## Machine-readable artifacts (3)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/leandata/refs/heads/main/openapi/leandata-legacy-still-supported-api-openapi.yml
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/leandata/refs/heads/main/overlays/leandata-legacy-still-supported-overlay.yaml
- **Documentation** — https://docs.leandata.com

## Other LeanData APIs (8)

- [LeanData 🗓️ Availability API](https://apis.io/apis/leandata/leandata-availability-api/)
- [LeanData Matching API](https://apis.io/apis/leandata/leandata-matching-api/)
- [LeanData 📆 Meetings > Create API](https://apis.io/apis/leandata/leandata-meetings-create-api/)
- [LeanData 📆 Meetings > Manage API](https://apis.io/apis/leandata/leandata-meetings-manage-api/)
- [LeanData 📆 Meetings > Retrieve API](https://apis.io/apis/leandata/leandata-meetings-retrieve-api/)
- [LeanData One Time Routing API](https://apis.io/apis/leandata/leandata-one-time-routing-api/)
- [LeanData Retrieve Routing Graphs Information API](https://apis.io/apis/leandata/leandata-retrieve-routing-graphs-information-api/)
- [LeanData 🧠 Scheduling Inputs API](https://apis.io/apis/leandata/leandata-scheduling-inputs-api/)

## Tags

Legacy (still supported)

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/leandata/leandata-legacy-still-supported-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/leandata/.