Add Working with the API page (#1943)

content/influxdb/cloud/tools/api/_index.md

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+---
+title: Working with the InfluxDB API
+seotitle: Use the InfluxDB API
+description: Interact with InfluxDB using a rich API for writing and querying data and more.
+weight: 103
+menu:
+  influxdb_cloud:
+    name: Working with the API
+    parent: Tools & integrations
+---
+
+{{< duplicate-oss >}}

content/influxdb/v2.0/tools/api/_index.md

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+---
+title: Working with the InfluxDB API
+seotitle: Use the InfluxDB API
+description: Interact with InfluxDB 2.0 using a rich API for writing and querying data and more.
+weight: 103
+menu:
+  influxdb_2_0:
+    name: Working with the API
+    parent: Tools & integrations
+---
+
+InfluxDB offers a rich API that you can use to create applications.
+The following pages offer general guides to the most commonly used API methods.
+
+For detailed documentation on the entire API, see [InfluxDBv2 API Documentation](/influxdb/v2.0/reference/api/#influxdb-v2-api-documentation).
+
+{{% note %}}
+If you are interacting with InfluxDB 1.x, see the [1.x compatibility API](/influxdb/v2.0/reference/api/influxdb-1x/).
+{{% /note %}}
+
+Use the following API endpoints to write and query data:
+
+## Write API
+
+[Write data to InfluxDB](/influxdb/v2.0/write-data/developer-tools/api/) using an HTTP request to the InfluxDB API `/write` endpoint.
+
+## Query API
+
+[Query from InfluxDB](/influxdb/v2.0/query-data/execute-queries/influx-api/) using an HTTP request to the `/query` endpoint.