Client Script | Update - Introducing ZRC: Simplified HTTP request library

Hello Developers!

Are you tired of juggling different methods to make API calls? Are you confused with multiple syntaxes and version restrictions? Have you ever wished for one simple way to make all API calls in CRM?

We heard you :)

Here comes ZRC (Zoho Request Client), the new way of making any API call in Client Script with one simple syntax!

What is ZRC?

ZRC (Zoho Request Client) is a built-in SDK that simplifies making API calls in Client Script. It uses one simple and consistent syntax to handle,

- CRM APIs

- Connection requests

- Public APIs .

There is no setup or configuration needed, making API calls hassle free.

          ZRC is now available for use in Client Script, helping you build faster with less effort.

Why use ZRC ?

APIs serve as the backbone for customizing Zoho CRM, powering vital tasks like updating records, adding leads, and integrating with external services. For developers, working with these APIs has not always been simple. Each type of API, whether internal CRM APIs, Connection APIs, or external APIs, requires different methods and boilerplate codes, which creates friction and slows down building solutions. Here comes ZRC to address this by handling authentication, supporting all CRM API versions, and managing requests and responses automatically, so developers can focus on building meaningful solutions.

Here is why ZRC is a game changer for scripting in Zoho CRM:

Supports Any CRM API Version

With ZRC, you can use any version of the CRM APIs, even the latest ones like v7 and v8.

Self domain calls

For CRM API calls, ZRC requires only the API endpoint without specifying the domain. This enables usage across different domains and simplifies API calls.

Unified Syntax for All Calls

Whether it is a CRM API, a custom Connection, or an external public API, all calls follow the same simple syntax.

No Authentication Needed for Same CRM Org

You do not have to worry about tokens or domain configurations. Just pass the endpoint, ZRC takes care of authentication behind the scenes.

Smart JSON Handling

ZRC automatically handles JSON responses. There is no need to manually stringify or parse response objects.

Async/Await & Clean Code

Write clean, modern code with full support for async/await and promise chains using `.then().catch().`

Let us see how to use ZRC to make API calls for different scenarios.

Use Cases

1. CRM API Use Case - Create Task with one click

At Zylker, a custom button “Log Call Attempt” should prompt the user to enter call details, save them as a Note on the Lead, update the Lead_Status to “Contacted”, and create a follow-up task for the next day, streamlining the process and reducing errors.

zrc-crm-APIs.mp4

7.4 M

Click here to view source code

2. Connection based Use Case - Export Subform Data to Zoho Sheet via API

At Zylker Finance, users maintain multiple loan options under each lead using a subform in Zoho CRM. The Admin requires the ability to export these subform rows to Zoho Sheet via API. This export should allow structured data transfer for further analysis, comparison, and reporting, all without manual copying or downloading.

zrc-connectionapi.mp4

2.57 MB

Click here to view source code.

3. Public API - Instantly retrieve real-time gold prices and perform currency conversions directly within the CRM interface

At Zylker, a gold jewelry company using Zoho CRM, the Admin needs the ability to instantly retrieve real time gold prices and perform currency conversions directly within the CRM interface without switching to external tools or websites.

zrc-public-apis.mp4

5.4 MB

Click here to view source code.

Note :

- Now, all your API calls are made using one SDK, one format, and with full browser capabilities.

- No need to worry about authentication, domains, or response formats.

- Available now in Client Script. ZRC support in Mobile App will be available soon.

- Coming soon to Widgets

- Function Invoke APIs also follow the same fundamentals as ZRC.

From fetching CRM data to integrating with third-party tools, you can now achieve powerful customizations in Zoho CRM.

This feature is live across all DCs.

Go ahead. Try ZRC in your next Client Script, and feel the difference. Let us know your comments and feedback!

The help documentation of ZRC is available here.

Happy Coding!

• Topic Participants

• Maadhari M

  

• Haiku Technical Support

  

• Sticky Posts

• Kaizen #198: Using Client Script for Custom Validation in Blueprint

  Nearing 200th Kaizen Post – 1 More to the Big Two-Oh-Oh! Do you have any questions, suggestions, or topics you would like us to cover in future posts? Your insights and suggestions help us shape future content and make this series better for everyone.

• Kaizen #226: Using ZRC in Client Script

  Hello everyone! Welcome to another week of Kaizen. In today's post, lets see what is ZRC (Zoho Request Client) and how we can use ZRC methods in Client Script to get inputs from a Salesperson and update the Lead status with a single button click. In this

• Kaizen #222 - Client Script Support for Notes Related List

  Hello everyone! Welcome to another week of Kaizen. The final Kaizen post of the year 2025 is here! With the new Client Script support for the Notes Related List, you can validate, enrich, and manage notes across modules. In this post, we’ll explore how

• Kaizen #217 - Actions APIs : Tasks

  Welcome to another week of Kaizen! In last week's post we discussed Email Notifications APIs which act as the link between your Workflow automations and you. We have discussed how Zylker Cloud Services uses Email Notifications API in their custom dashboard.

• Kaizen #216 - Actions APIs : Email Notifications

  Welcome to another week of Kaizen! For the last three weeks, we have been discussing Zylker's workflows. We successfully updated a dormant workflow, built a new one from the ground up and more. But our work is not finished—these automated processes are

• Recent Topics

• Zoho Projects API Scope for Issue Attachments

  I try to download issue attachments via the API, unfortunately I always get the following error code when trying to download the file from the supplied URL: {"ERROR_MESSAGE":"INVALID_OAUTHSCOPE","ERROR_CODE":401} indicating an auth scope error. I've tried

• How to fetch custom fields for time entries in Zoho Project API v3

  In the previous Zoho Projects REST API, we were able to retrieve custom field details for time entries, including picklist options, using the endpoint: GET /restapi/portal/[PORTAL_ID]/timesheetcustomfields In the new Zoho Projects API v3, we tried using

• Zoho Survey Enhancements

  We love Survey. We use it a ton. It needs some enhancements. Maybe some of these are already on the roadmap? API - this is crucial. We have some complex surveys that take place and need to update records, trigger other functions/automations, etc. I would

• Images Don't Display on Blog

  Hi, I've just posted a new blog entry, but regardless of format (png or jpeg) Images that display in Preview mode do not display on any browser in the published post.  I've not done anything different with this post than others regarding images, please advice. Thanks! Edit:  I've discovered that moving the image files from a my sub directory folder "Pics for Blog" to the top level of the "Files" folder on my site allows the images to display live.  This, even though my other blog posts are correctly

• Checkbox Field Mapping Zoho Forms to Zoho Sign

  I have an application that will be filled out via Forms that I am mapping into a PDF Filler on Zoho Sign. I need to have a series of checkboxes mapped to the corresponding fields in Sign and I only see single checkboxes available via the mapping, though

• Books P&L by Customer

  Lately, we have found that the Customer field filter for the Profit & Loss report in Zoho Books is no longer available. We have several projects with the same customer and look at the P&Ls by project AND by Customer (overall). Can you please add back in this field selection alongside the Project field to the P&L report filter? Thanks! -Gina

• Sent mail sort by date disappeared

  Hello, We used to be able to sort the emails by date in the sent folder, but this feature has recently disappeared. Can we bring it back?

• I cannot check out to Zoho People.

  When I tried to check out today, there's prompt that inhibits me to check out: To add entry in Attendance, log time for any of your jobs

• Pricing Strategies: #2 Plan your Service Offerings using Plans

  Meet Harvey & Mia, hailing from the same Tech school, carrying the dream of setting up their own IT maintenance firm in their location. They drew up a clear business plan and put their business in motion on New Year's Eve. They had great reception right

• Open a record to edit based on another form being edited

  Hi all, I am trying to edit a record based on another record being edited. It works out like this: When I create a Monthly_Update and then submit I open the Monthly_Levels form and pass the ID from the Monthly_Update to a field called mu. I want it to

• Problem with signature on zoho survey

  Hello, I'm trying to export individual responses with signatures on zoho survey. But the signatures on some of my surveys are not exported as the original image, but as a generic image, same for all (screen joins). Is there a solution to have the signatures

• Change in Zoho CRM API?

  Hello, I am using the Zoho API trough the PHP SDK v2.1 Since few days, I noticed that I have to change the way I pass the data to the API when I create, update, or upsert a record. Dates Before I was passing a PHP date object to "$record->addKeyValue(...)",

• MTA - BAD IP reputation by outlook/hotmail

  Messages to Microsoft email servers are bouncing back due to poor reputation. Message: 4.7.650 The mail server [136.143.188.206] has been temporarily rate limited due to IP reputation. For e-mail delivery information see https://postmaster.live.com (S775)

• QuickBooks Extension for Zoho CRM - Advanced Features -2025

  Hello Everyone, We’re happy to announce the latest version of our QuickBooks Extension for Zoho CRM, now officially live on the Zoho Marketplace! This release introduces one-click data sync, a user-friendly UI, enhanced performance, and a powerful set

• Changing Department often causes the Firefox tab to freeze

  Title, it doesn't seem to happen with neither Opera nor Chrome. And even in Firefox, sometimes it just lets me change the department I'm in no problem, even to All Departments which is probably the most, like, resource heavy? But most of the time, the

• Need to integrate Zoho Mail Mobile app with Zoho Meeting Mobile App for Android and Apple

  Hello Zoho Team, Please bring integration of Zoho Mail Mobile app with Zoho Meeting for Android and Apple Thanks

• ¡Muchas gracias por participar a los Meetups de Usuarios de Zoho! Y Novedades del ecosistema Zoho

  ¡Hola Comunidad de Zoho en Español! 👋 Después de un breve lapso de tiempo, volvemos con una nueva edición de nuestro Community Digest, donde te contamos las novedades de los productos de Zoho en los últimos meses. Estas mejoras se centran en nuestros

• Anyway to move mail from one account to another yet?

  Hello, Is there any way to move email from one mailbox account to another mailbox account in zoho yet? Thanks, Ryan.

• Using a CRM Client Script Button to create a Books Invoice

  Hello, I need help handling error messages returned to my client script from a function. The scenario I have setup a client script button which is available from each Deal. This CS executes a crm function, which in turn creates an invoice based on the

• Building Toppings #2 - Learn how to use Bigin's Developer Console to build toppings

  Hey Biginners, In our last post, we discussed what toppings are, why they're essential to extending Bigin's capabilities, and how the Bigin Developer Center serves as the starting point for building them. As a cloud platform, the Developer Center empowers

• Links are incorrect when sent out

  I'm adding in hyperlinks into my eDM. When I send a test email, it's all correct. However, when I send out the eDM, all the hyperlinks jump up one space so none of the links are opening to the correct page. Why is this happening and how can I fix it?

• Tip of the week #16 - Search and filter threads based on criteria

  Zoho TeamInbox lets you search and filter threads with any information that you have about the thread. You just have to input the criteria and Zoho TeamInbox will list all the threads that match the condition.   Firstly, there is a global search you can

• Introducing recipient authentication via Stripe Identity in Zoho Sign

  Hi everyone! It's important to authenticate your recipient's identity before they access and sign important documents to ensure the highest level of compliance. Zoho Sign already helps businesses do this with various authentication methods: SMS OTP Email

• Keep Converted Leads

  How do I keep the converted leads in the Leads Module after conversion (converting it to account, contact, deal). I want to add it in a converted stage in the leads module in order to get a report or dashboard and see all converted leads from my pip

• Customizing Global Search Settings for All Users

  Hi Our team use the brilliant global search functionality within CRM many many times daily. But, we struggle with the out-of-the box columns that CRM gives you. We are always telling users to customize this look to more suit our business, to show the

• Introducing Formula Fields for performing dynamic calculations

  Greetings, With the Formula Field, you can generate numerical calculations using provided functions and available fields, enabling you to derive dynamic data. You can utilize mathematical formulas to populate results based on the provided inputs. This

• Tip of the Week #77– Stay informed of the activities happening in your organization

  Whenever a message is handled in Zoho TeamInbox, every action is recorded in the Activity Log. This ensures you always know what’s happening across your teams and inboxes. To access it, simply click the Audits icon on the left pane’s top bar after logging

• Zoho Logs - Not seeing logs since 30 Nov

  Hi, we have a few functions running, I am testing some new ones and noticed that although I can see executions, I cannot see any logs, even when the first line on the functions is a log. I reviewed some existing functions, one of which is invoked on a

• Workdrive MS Office integration

  Have installed subscribed version of Zoho WorkDrive VSTO runtime not found is the error when I try to install Zoho_WorkDrive_For_Office Unable to open work files in Excel and Word Urgent, since I have migrated all my OneDrive files to work drive already

• How to change Zoho Vault password

  I am searching where I can change the Vault Password after having changed the Zoho account password. I don't see this option anywhere in my account. It should be simple and accessible! Please help. Thanks!

• Zoho Workdrive - Communication / Chat Bar

  Hi Team, Please consider adding an option to allow admins to turn on or off the Zoho Communication Bar. Example of what I mean by Communication Bar: It's such a pain sometimes when I'm in WorkDrive and I want to share a link to a file with a colleague

• When Marking a Multiple Choice Answer Exclusive - Not Following My Survey Disqualification Logic

  Using a multiple choice (many answers) question and I created survey disqualification logic that was working as intended. My question: Disqualification page logic is: If (QUESTION) is "any one of the following" then (OPTIONS) - a custom message populates

• Where to Add Machines as Products to Map with Assets in Zoho FSM?

  implementing Zoho FSM for a clinical equipment supply company. The business sells and installs clinical machines in hospitals and clinics, and they also handle service requests, scheduled maintenance, calibration visits, and general machine upkeep. In

• Show Zoom Link in Recipient's Calendar

  We set up meetings within a record, selecting the "Make this an online meeting".  We use Zoom. Most of the recipients go to their calendar (usually Gmail or Outlook, corporate) to join the Zoom meeting, but there is no Zoom link in the calendar. Can this

• Zoho Bigin - should be able to link a "contact" to multiple "companies"

  Hello Support, I called into telephone support and was told that a contact can only be linked to one company. We have situations were director are contacts of and directors of multiple companies so that seems a basic weakness in Bigin. When go to add

• Does Thrive work with Zoho Billing (Subscriptions)?

  I would like to use Thrive with Zoho Billing Subscriptions but don't see a way to do so. Can someone point me in the right direction? Thank you

• Radio button data won't update

  Wondering if anyone is experiencing the same problem. I tried bulk updating our data on Zoho Creator using API and noticed that the radio button field wasn't updated. I have tried updating it manually, it didn't work. When I tried updating a text field

• Introducing Global Sets for easy management of similar picklists in CRM

  Latest update (December 2025): You can now apply color coding to the values inside a global set, the same way you color code values in regular picklist fields. Update (Sep 2024): We've increased the maximum count limit for global sets. These new limits

• No Ability to Rename Record Template PDFs in SendMail Task

  As highlighted previously in this post, we still have to deal with the limitation of not being able to rename a record template when sent as a PDF using the SendMail Task. This creates unnecessary complexity for what should be a simple operation, and

• New in CPQ: Smarter suggestions for Product Configurator by Zia, and additional criteria in Price Rules

  Hello everyone! CPQ's Product Configurator in Zoho CRM allows sales teams to define structured product bundles through configuration rules, ensuring that the right product combinations are applied consistently in quotes. Admins set up these configurations

• Next Page