BOND API (v2.5.9)

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BETA Status

BOND API is currently in BETA. This means that:

  • the API may change without provisions for backwards compatibility
  • some features of the API may not be implemented

Specifically, two major aspects of BOND API are not yet implemented:

  • Actions are not implemeted
  • State feedback is not implemented

For now, it is only possible to control devices by explicitly calling the commands/{}/tx endpoint for the command corresponding to the desired action.


The BOND V2 API allows control of Ceiling Fans, Fireplaces, and other BOND devices. It is intended for integration with offline control systems, for use by advanced users, hobbiests, integrators, and installers.

For the purposes of device control, it does not matter whether these devices are remote-controlled devices that Work with BOND (connected via a BOND Bridge) or smart devices that are Powered by BOND.

This documentation describes the Local HTTP API for BOND products running v2 firmware. This API does not require an internet connection, but does require that the API client be able to directly communicate with the BOND over HTTP. Typically this means being on the same Wi-Fi network. We are still working on a Cloud API, which will be very similar to the Local API.


The BOND Local API uses unencrypted HTTP using a simple token-based authentication mechanism.

Why HTTP and not HTTPS?

After speaking with many users interested in Local API, we discovered that users were satisfied with the protection provided by their Wi-Fi network's password, and that it is more important to provide easy and low-latency control of BOND devices than to provide security against other devices and users on the Wi-Fi network.

Furthermore, it can be challenging for an API client to use HTTPS securely. In order to protect against malicious devices or users inside your Wi-Fi network, it would be necessary for an HTTPS API client to check the validity of the BOND's HTTPS certificate against an Olibra Certificate Authority. The web standard of using domain-based certificate chain-of-trust does not work when offline, because the BOND does not have a domain name, being a device on your local network rather than on the public internet. As a consequence, an HTTPS API would not work from many webbrowsers due to the certificate being untrusted.

That said, if you have untrusted users or devices on your Wi-Fi network, we recommend placing BOND on a seperate home automation network to which the untrusted users do not have the password.

Security on the Internet

Rest assured that when BOND products communicate with BOND Cloud (which is needed for integration and voice control support), we use industry-standard secure TLS connections, secured with per-unit public key cryptography. There is no unencrypted communication between BOND hardware and BOND Cloud.

Please be sure to always use BOND behind a firewall, and do not set up port-forwarding to the BOND Local API, to ensure that unsecured communications do not take place over the public internet.

Getting Started

Finding the BOND IP

First, power on a BOND device and connect it to your Wi-Fi network. Use the BOND app to confirm that the BOND's firmware is at least version v2.

Now, from your PC connected to the same network, try pinging the BOND. For example, if your BOND ID is ZZBL12345, you can ping it by running the following command in a terminal:

ping BB18038.local

You should see the IP address printed, along with reply messages. Press Ctrl-C to exit the ping program:

PING bb18038.local ( 56 data bytes
64 bytes from icmp_seq=0 ttl=64 time=96.800 ms
64 bytes from icmp_seq=1 ttl=64 time=34.902 ms
64 bytes from icmp_seq=2 ttl=64 time=4.226 ms
--- bb18038.local ping statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 4.226/45.309/96.800/38.503 ms

You can see the IP address of this BOND is

Note that the lookup from BOND ID to IP address is performed using mDNS. You will need to make sure that mDNS is installed and enabled on your system (this is the default for most Linux distros and on MacOS).

You can search for all BONDs on your local network. On Linux, do:

avahi-browse -a | grep bond

And on MacOS, do:

dns-sd -B _bond._tcp .

In both cases, you will see a list of BONDs on your Wi-Fi network and their IP addresses.

Check BOND Version

Next, let's check the BOND's firmware version. To do this, we will use a command-line utility called cURL. cURL is installed by default on MacOS and most Linux distributions.

To check the firmware version, run this command:

curl -i

The flag -i means "display header information". You should see output similar to this:

HTTP/1.1 200 OK
Content-Length: 243
Content-Type: application/json; charset=utf-8

{"target":"snowbird","fw_ver":"v2.5.2","fw_date":"Fri Feb 22 14:13:25 -03 2019","make":"Olibra LLC","model":"model","branding_profile":"O_SNOWBIRD","uptime_s":380,"_":"c342ae74"}

Where, we see the firmware version is v2.5.2.

Getting the BOND Token

Note that no token is required for the version endpoint, but other endpoints will require token-based authentication.

To get the token, follow this procedure:

  1. Power cycle the BOND.

  2. Within 10 minutes, access the token endpoint as follows:

    curl -i

  3. You should see a return body containing token such as this:


  4. Copy the token and use it with a BOND-Token header in subsequent requests.

Get Device Information

To get a list of devices on the BOND, do:

curl -H "BOND-Token: f074b61f628018fd" -i

You will get a list of devices such as this:


Here we see there is one device with id 79135791.

We can request the device details by doing:

curl -H "BOND-Token: f074b61f628018fd" -i

And we can see the device name, location, and available Actions:

{"name":"Magic Fan","type":"CF","actions":["TurnOn","TurnOff","SetSpeed","IncreaseSpeed","DecreaseSpeed"],"location":"Dungeon","_":"599b0fc5","commands":{"_":"be8e1896"}}

Set the Fan Speed

Finally, let's try setting the fan's speed:

curl -H "BOND-Token: f074b61f628018fd" -i -X PUT -d '{"argument": 3}'

Hash Tree

The BOND API is organized as a tree of endpoints, starting at the root. Here's an incomplete example:

- v2
  - devices
    - 00000001
      - commands
      - state
    - 00000002
      - commands
      - state
    - 00000003
      - commands
      - state
  - sys
    - wifi

Clearly, if the entire tree were expanded on a request of the root, then the resulting request may be very large! This large response body would cause several problems, including taking a long time to transmit over slow networks, taking time to generate, and being too large to be effectively transmitted over the message-based protocol MQTT.

Therefore, BOND only returns a single level of the tree on every request.

Each node of the tree has a 32-bit "hash" value which is changed whenever that node, or any of the child nodes, are modified. This hash is provided in every reply body as the "_" object.

When a requested endpoint has children that are not expanded, the child values are replaced with just the child hashes.

For example, when requesting the devices endpoint, you may receive the following response:


Let's break this down:

  • "_":"f7e407f1" : This is the hash value of the devices object. If any devices are added, modified, or deleted, this hash will change.

  • "79135791" : This is the device id of the one device on this BOND.

  • {"_":"599b0fc5"} : This is the hash object representing device with id 79135791.

If the API client wants to get the name of the device, it is necessary to make a seperate request on the device itself: GET devices/79135791, which would return the name and location directly associated with the device, as well as hash objects for the child nodes of device: commands and state.


BOND Bridge

The BOND Bridge, also referred to simply as "BOND", connects RF- and IR-controlled devices to Wi-Fi. Learn more at


Within the BOND ecosystem, the term "device" always refers to a home appliance connected to BOND. A BOND Bridge is not itself a device.


BOND devices support one or more "features", such as Speed or Brightness, which come with a set of Actions, State Variables, and Properties that define and control some aspect of the device.

For example, a device which supports the Light feature will always have actions for TurnLightOn, TurnLightOff, and ToggleLight. Furthermore, it will always have the light state variable.

See the Features section below for detail on all supported features.


Devices are controlled by calling "actions" such as SetSpeed or TurnOff.

Some actions require an "argument" to be included. For example, SetSpeed requires an integer argument with the speed number to set.

Actions represent a user's intent, but do not nessisarly map one-to-one onto the commands that are sent to a device. Actions abstract away the complexity of the underlying commands needed to achieve the desired change in state of a device.


BOND Bridges operate by translating actions into "commands". While actions are in a user's language, commands are in the device's remote control's language. Often there is a one-to-one mapping from actions to commands, for example, most ceiling fans have distinct RF commands for each speed. So the action "SetSpeed(3)" is always translated into the same RF signal that tells the device to go to the third speed.

However, sometimes a device does not have a single command which always accomplishes a specific action. For example, most ceiling fans do not have a specific command corresponding to the TurnOn action, but rather, BOND remembers the previous speed that the fan was set to, and uses a particular SetSpeed command to accompish the TurnOn action. On the other hand, certain ceiling fans do have a specific TurnOn command. In that case the TurnOn action will always map to the TurnOn command. This results in the correct speed being restored even if the factory remote control was used.


The term "signal" refers to the actual RF or IR transmission sent to the remote-controlled device to accomplish a particular command.

Every command should have exactly one corresponding signal. However, the BOND Bridge supports a number of signal endpoints which allow manipulation of signals directly, such as signal/scan to receive signals, or signal/tx to transmit a signal without association to a device.

State Variable

The BOND Bridge makes an effort to track the state of devices, and this state is represented by a set of "state variables", such as speed and brightness.

Speed variables cannot be set directly, but rather are manipulated indirectly through actions. For example, the SetSpeed action with an argument of 3 has the side-effect of setting the speed state variable to 3 and the power variable to 1.


Some device Features have a "Property" which parameterizes the devices capabilities. For example, multi-speed ceiling fans supporting the Speed feature will always have a max_speed property which gives the maximum speed which the speed state varible may take.

Properties are read-only.


Devices have a combination of actions, state variables, and fixed properties. In order to understand how these relate to each other, it is helpful to organize actions into features and study one feature at a time.


The Power feature controls the basic on/off state of a device.

For Ceiling Fans, it refers to the state of the fan motor. Note that most ceiling fans have lights which are not governed by the Power feature.

For Fireplaces, it refers to the state of the flame. Note that many fireplaces have separate light or fan functions, which are not governed by the Power feature.



State Variables

  • power: (integer) 1 = on, 0 = off


  • TurnOn(): Turn device power on.
  • TurnOff(): Turn device power off.
  • TogglePower(): Change device power from on to off, or off to on.


The Timer feature allows turning off a device after a specified delay, similar to the dial timer interface on toaster ovens.

The Timer feature requires the Power feature.



State Variables

  • timer: (integer) seconds remaining on timer, or 0 meaning no timer running


  • SetTimer(s): Start timer for s seconds. If power if off, device is implicitly turned on. If argument is zero, the timer is canceled without turning off the device.

NOTE: The timer is canceled implicitly by any action on the Power, Speed, or Breeze features, other than TurnOn. For example, if a timer is running, and the user turns off the device and then turns it back on, the timer will be canceled and therefore the device will not turn off again unexpectedly. The intention that a timer is designed to help reduce energy consumption, but should never surprise the user who forgot that they enabled the timer function earlier.


The Speed feature is used by multiple-speed Ceiling Fans to track the motor speed.

The Speed feature requires the Power feature.

Note that while many Fireplaces have a built-in fan, they do not use the Speed feature. See FpFan feature.


  • max_speed: (integer) highest speed available

State Variables

  • speed: (integer) value from 1 to max_speed. If power=0, speed represents the last speed setting and the speed to which the device resumes when user asks to turn on.


  • SetSpeed(speed): Set speed and turn on. If speed>max_speed, max_speed is assumed. If the fan is off, implicitly turn on the power. Setting speed to zero or a negative value is ignored.
  • IncreaseSpeed(speeds): Increase speed of fan by specified number of speeds. If the fan is off, implicitly turn on the power.
  • DecreaseSpeed(speeds): Decrease fan speed by specified number of speeds. If attempting to decrease fan speed below 1, the fan will remain at speed 1. That is, power will not be implicitly turned off. If the power is already off, DecreaseSpeed is ignored.

NOTE: When the device is turned off, the previous speed is remembered. When the fan is then turned back on, it will resume at the previous speed.


The Breeze feature of many multi-speed Ceiling Fans provides a randomized breeze.

Breeze works by pseudorandomly changing the power and speed of the fan over time to create a natural breeze effect. There are two parameters of the breeze which may be adjusted to provide the desired breeze effect.

The Breeze feature requires the Speed feature.



State Variables

  • breeze: (array) array of the form [ <mode>, <mean>, <var> ]:
    • mode: (integer) 0 = breeze mode disabled, 1 = breeze mode enabled
    • mean: (integer) sets the average speed. 0 = minimum average speed (calm), 100 = maximum average speed (storm)
    • var: (integer) sets the variability of the speed. 0 = minimum variation (steady), 100 = maximum variation (gusty)


  • BreezeOn(): Enable breeze with remembered parameters. Defaults to [50,50].
  • BreezeOff(): Stop breeze. Fan remains on at current speed.
  • SetBreeze(breeze): Enable breeze with specified parameters (same as breeze state variable). Example SetBreeze([1, 20, 90]).

NOTE: If breeze is enabled when the fan is powered off, then breeze will be restored at power on.

NOTE: Calling SetBreeze with first parameter equal to 0 will disable breeze, but still set the specified mean and var parameters.

NOTE: SetSpeed implicitly disables breeze mode.


The Direction feature is used by reversible Ceiling Fans to track the direction of the fan motor.

The Direction feature requires the Power feature.



State Variables

  • direction: (integer) 1 = forward, -1 = reverse.

The forward and reverse modes are sometimes called Summer and Winter, respectively.


  • SetDirection(direction): Control forward and reverse.
  • ToggleDirection(): Reverse the direction of the fan.


The Light feature governs the basic on/off status of a device's main light.

This is a very common feature of Ceiling Fans, and present on many Fireplaces.

See the UpDownLight feature for the behavior of devices with dual lights.



State Variables

  • light: (integer) 1 = light on, 0 = light off


  • TurnLightOn(): Turn light on.
  • TurnLightOff(): Turn off light.
  • ToggleLight(): Change light from on to off, or off to on.


The UpDownLight feature governs the on/off status of a device's upwards- and downards-facing lights, such as the ceiling-wash "up light" and direct "down light" found on some high-end ceiling fans.

The corresponding physical remote often has seperate buttons for the UpLight and DownLight, but no button for just "Light". However, BOND always makes the Light feature available along with UpDownLight to make these devices easy to integrate. For example, saying "Alexa, Turn on the Light" corresponds to the TurnLightOn action, which will have a reasonable result for devices with UpDownLight.



State Variables

  • up_light: (integer) 1 = up light enabled, 0 = up light disabled

  • down_light: (integer) 1 = down light enabled, 0 = down light disabled

    If both up_light and light are 1, then the up light will be on, and similar for down light.

    Note that both up_light and down_light may not be simultaneously zero, so that the device is always ready to respond to a TurnLightOn request.


  • TurnUpLightOn(): Turn up light on.
  • TurnDownLightOn(): Turn down light on.
  • TurnUpLightOff(): Turn off up light.
  • TurnDownLightOff(): Turn off down light.
  • ToggleUpLight(): Change up light from on to off, or off to on.
  • ToggleDownLight(): Change down light from on to off, or off to on.

Note that TurnLightOff/TurnLightOn honor the up_light and down_light enable variables. That is, the user is able to use the factory remote to select a prefered combination of up and down light, and that combination is restored when TurnLightOn is called, perhaps through a voice integration.


The Brightness feature governs lights which can be dimmed to specified brightness level.

This feature is common on classic Ceiling Fans whose remotes have displays. Note, however, that classic Ceiling Fans whose remotes do not have displays typically only support HoldToDim or HoldToDimUpDown feature.



State Variables

  • brightness: (integer) percentage value of brightness, 1-100. If light=0, brightness represents the last brightness setting and the brightness to resume when user turns on light. If fan has no dimmer or a non-stateful dimmer, brightness is always 100.


  • SetBrightness(brightness): Set the brightness of the light to specified percentage. Value of 0 is ignored, use TurnLightOff instead.
  • IncreaseBrightness(amount): Increase brightness of light by specified percentage. If light is off, it will be turned on at (0 + amount).
  • DecreaseBrightness(amount): Decrease light brightness by specified percentage. If attempting to decrease brightness below 1%, light will remain at 1%. Use TurnLightOff to turn off the light. If the light is off, the light will remain off but the remembered brightness will be decreased.

NOTE: The brightness level is remembered on TurnLightOff and restored on TurnLightOn.


The UpDownBrightness feature extends the Brightness feature to cover the ability of ceiling fans with separately dimmable up and down lights.

This feature is almost only found on Powered by BOND Ceiling Fans.



State Variables

  • up_light_brightness: (integer) percentage value of up light brightness, 1-100.
  • down_light_brightness: (integer) percentage value of down light brightness, 1-100.


  • SetUpLightBrightness(brightness): Similar to SetBrightness but only for the up light.
  • SetDownLightBrightness(brightness): Similar to SetBrightness but only for the down light.
  • IncreaseUpLightBrightness(amount): Similar to IncreaseBrightness but only for the up light.
  • IncreaseDownLightBrightness(amount): Similar to IncreaseBrightness but only for the down light.
  • DecreaseUpLightBrightness(amount): Similar to DecreaseBrightness but only for the up light.
  • DecreaseDownLightBrightness(amount): Similar to DecreaseBrightness but only for the down light.

NOTE: The brightness level of each light is remembered on TurnLightOff, TurnUpLightOff, TurnDownLightOff and restored on TurnLightOn, etc.

NOTE: IncreaseBrightness and DecreaseBrightness operate on whichever of the up and down lights are enabled, but will never enable or disable one or the other light.


List your devices




List active devices




Internal Server Error

get /v2/devices

Local API

Response samples

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  • "0ab83cf2":