---
title: Scrape Prometheus metrics
seotitle: Scape Prometheus metrics into InfluxDB
weight: 205
description: >
  Use Telegraf, InfluxDB scrapers, or the `prometheus.scrape` Flux function to
  scrape Prometheus-formatted metrics from an HTTP-accessible endpoint and store
  them in InfluxDB.
menu:
  influxdb_2_1:
    name: Scrape Prometheus metrics
    parent: Developer tools
related:
  - /{{< latest "telegraf" >}}/plugins/#input-prometheus, Telegraf Prometheus input plugin
  - /{{< latest "flux" >}}/prometheus/scrape-prometheus/, Scrape Prometheus metrics with Flux
  - /{{< latest "flux" >}}/stdlib/experimental/prometheus/scrape/
  - /{{< latest "flux" >}}/prometheus/metric-types/
  - /influxdb/v2.1/reference/prometheus-metrics/
  - /influxdb/v2.1/write-data/no-code/scrape-data/
influxdb/v2.1/tags: [prometheus, scraper]
---

Use [Telegraf](/{{< latest "telegraf" >}}/){{% oss-only %}}, [InfluxDB scrapers](/influxdb/v2.1/write-data/no-code/scrape-data/),{{% /oss-only %}}
or the [`prometheus.scrape` Flux function](/{{< latest "flux" >}}/stdlib/experimental/prometheus/scrape/)
to scrape Prometheus-formatted metrics from an HTTP-accessible endpoint and store them in InfluxDB.

{{% oss-only %}}

- [Use Telegraf](#use-telegraf)
- [Use an InfluxDB scraper](#use-an-influxdb-scraper)
- [Use prometheus.scrape()](#use-prometheusscrape)

{{% /oss-only %}}
{{% cloud-only %}}

- [Use Telegraf](#use-telegraf)
- [Use prometheus.scrape()](#use-prometheusscrape)

{{% /cloud-only %}}

## Use Telegraf
To use Telegraf to scrape Prometheus-formatted metrics from an HTTP-accessible
endpoint and write them to InfluxDB{{% cloud-only %}} Cloud{{% /cloud-only %}}, follow these steps:

1. Add the [Prometheus input plugin](/{{< latest "telegraf" >}}/plugins/#input-prometheus) to your Telegraf configuration file.
    1. Set the `urls` to scrape metrics from.
    2. Set the `metric_version` configuration option to specify which
      [metric parsing version](/influxdb/v2.1/reference/prometheus-metrics/) to use
      _(version `2` is recommended)_.
2. Add the [InfluxDB v2 output plugin](/{{< latest "telegraf" >}}/plugins/#output-influxdb_v2)
   to your Telegraf configuration file and configure it to to write to
   InfluxDB{{% cloud-only %}} Cloud{{% /cloud-only %}}.

##### Example telegraf.conf
```toml
# ...

## Collect Prometheus formatted metrics
[[inputs.prometheus]]
  urls = ["http://example.com/metrics"]
  metric_version = 2

## Write Prometheus formatted metrics to InfluxDB
[[outputs.influxdb_v2]]
  urls = ["http://localhost:8086"]
  token = "$INFLUX_TOKEN"
  organization = "example-org"
  bucket = "example-bucket"

# ...
```

{{% oss-only %}}

## Use an InfluxDB scraper
InfluxDB scrapers automatically scrape Prometheus-formatted metrics from an
HTTP-accessible endpoint at a regular interval.

- [Create a scraper with the InfluxDB API](#create-a-scraper-with-the-influxdb-api)
- [Create a scraper with the InfluxDB UI](#create-a-scraper-with-the-influxdb-ui)

### Create a scraper with the InfluxDB API

Use the InfluxDB API [`/api/v2/scrapers`](/influxdb/v2.1/api/#tag/Scraper-Targets) endpoint to manage scrapers and member privileges for scrapers.

To create a scraper, send an HTTP `POST` request to the `/api/v2/scrapers` endpoint.

{{< api-endpoint method="POST" endpoint="http://localhost:8086/api/v2/scrapers" >}}

Include the following in your request:

| Requirement          | Include by                                               |
|:-----------          |:----------                                               |
| API token with [`write: orgs/YOUR_ORG_ID/scrapers`](/influxdb/v2.1/api/#operation/PostAuthorizations) permission | Use the `Authorization` header and the `Bearer` or `Token` scheme. |
| Organization         | Pass as `orgID` in the request body. |
| Scraper name         | Pass as `name` in the request body. |
| Format of scraped data | Pass as `type` in the request body. Prometheus data format (`prometheus`) is the only supported type. |
| URL endpoint to scrape | Pass as `url` in the request body. |

Optionally, to force the scraper to skip TLS verification and ignore self-signed certificates at the `url`, pass `"allowInsecure": true` in the request body.

#### Example

```sh
curl -v --request POST http://localhost:8086/api/v2/scrapers \
  --header "Authorization: Token ${INFLUX_TOKEN}" \
  --header 'Content-type: application/json' \
  --data-binary @- << JSON
    {
      "name": "Scraper name",
      "type": "prometheus",
      "url": "http://localhost:9090/metrics",
      "orgID": "${INFLUX_ORG}",
      "bucketID": "c55193a037c3b0ca",
      "allowInsecure": true
    }
JSON
```

### Create a scraper with the InfluxDB UI

To use the InfluxDB UI to manage scrapers, see
[Scrape data using InfluxDB scrapers](/influxdb/v2.1/write-data/no-code/scrape-data/).

{{% /oss-only %}}

## Use prometheus.scrape()
To use the [`prometheus.scrape()` Flux function](/{{< latest "flux" >}}/stdlib/experimental/prometheus/scrape/)
to scrape Prometheus-formatted metrics from an HTTP-accessible endpoint and write
them to InfluxDB{{% cloud-only %}} Cloud{{% /cloud-only %}}, do the following in your Flux script:

1. Import the [`experimental/prometheus` package](/{{< latest "flux" >}}/stdlib/experimental/prometheus/).
2. Use `prometheus.scrape()` and provide the URL to scrape metrics from.
3. Use [`to()`](/{{< latest "flux" >}}/stdlib/influxdata/influxdb/to/) and specify the  InfluxDB{{% cloud-only %}} Cloud{{% /cloud-only %}} bucket to write
  the scraped metrics to.

##### Example Flux script
```js
import "experimental/prometheus"

prometheus.scrape(url: "http://example.com/metrics")
    |> to(bucket: "example-bucket")
```

4. (Optional) To scrape Prometheus metrics at regular intervals using Flux, add your Flux
scraping script as an [InfluxDB task](/{{< latest "influxdb" >}}/process-data/).

_For information about scraping Prometheus-formatted metrics with `prometheus.scrape()`,
see [Scrape Prometheus metrics with Flux](/{{< latest "flux" >}}/prometheus/scrape-prometheus/)._