---
schema_version: "1"
id: 6fe0c1ff345e0da719268fc1da574b9be014848fe8774e3c8d43f18c84b6a744
title: Tooling API
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/release-notes/264-0-0/rn_api_tooling.md
canonical_url: https://help.salesforce.com/s/articleView?id=release-notes.rn_api_tooling.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 45c8f5944de28e90cc7e3f7142607ef5a23e8607592867f0ae69558dcd7c28bf
description: Get built-in and custom Apex type information by using the Apex Symbol API. Retrieve compilation results for invalid Apex classes and triggers. Filter Test Discovery API results by test level. Access more metadata through new and changed Tooling API objects.
products:
  - Cross Cloud
release: "264"
---
# Tooling API

Get built-in and custom Apex type information by using the Apex Symbol API. Retrieve compilation results for invalid Apex classes and triggers. Filter Test Discovery API results by test level. Access more metadata through new and changed Tooling API objects.

The Tooling API Reference and Developer Guide contains all Tooling API information.

- **[Tooling API Changed Calls and Resources](https://help.salesforce.com/s/articleView?id=release-notes.rn_api_tooling_behavior.htm&release=264.0.0&type=5)**  
    These resources are new or have changes.
- **[Tooling API New and Changed Objects](https://help.salesforce.com/s/articleView?id=release-notes.rn_api_tooling_new_and_changed_objects.htm&release=264.0.0&type=5)**  
    Access more metadata through these new and changed Tooling API objects.