PAC Control REST API

opto22 · IoT

IoT No Auth Free & Open iot

#### Revised: 6/15/2018 ### Overview This API provides secure access to a SNAP-PAC-R or -S series controller's variable and I/O tags. Confidentiality for API transactions is provided by HTTPS. Authentication uses HTTP Basic Authentication with an API key. An API key ID is submitted in the Basic Authentication userid field and API key value in the password field. **For more information visit:** [developer.opto22.com](http://developer.opto22.com) ### Examples **Read an array** of all the integ

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET readDeviceDetails

Returns controller's type; firmware version; both mac addresses; and uptime in seconds

https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device"

import requests
response = requests.get(
    "https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device';

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	targetURL := "https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device"
	req, _ := http.NewRequest("GET", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device")

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Get.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device";
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET readStrategyDetails

Returns the name, date, time, and CRC of the strategy currently in the controller, and the number of charts currently running. Empty strings and a 0 will be returned when there is no strategy.

https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device/strategy

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device/strategy"

import requests
response = requests.get(
    "https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device/strategy",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device/strategy';

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	targetURL := "https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device/strategy"
	req, _ := http.NewRequest("GET", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device/strategy")

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Get.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device/strategy";
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET readAnalogInputs

Returns the name and engineering units (EU) for all analog input points in the strategy

https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device/strategy/ios/analogInputs

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device/strategy/ios/analogInputs"

import requests
response = requests.get(
    "https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device/strategy/ios/analogInputs",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device/strategy/ios/analogInputs';

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	targetURL := "https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device/strategy/ios/analogInputs"
	req, _ := http.NewRequest("GET", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device/strategy/ios/analogInputs")

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Get.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/opto22.com/pac/R1.0a/device/strategy/ios/analogInputs";
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

Postman Setup Guide

Get Postman ↗

See official documentation for authentication and setup.

What can you build with PAC Control REST API?

PAC Control REST API is a IoT API. Developers commonly use iot APIs for:

collecting and streaming sensor and device data
monitoring and controlling connected devices
building smart-home and industrial dashboards
processing device telemetry at scale
automating device provisioning and alerting

No authentication required. This API is open — no signup or key needed. Ideal for quick prototypes and public-facing features. PAC Control REST API is free to use, making it a low-risk choice to experiment with.

New to APIs? Read our beginner's guide · Learn about API keys · What is REST?

Open documentation ↗