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 - Automate Call Notes and 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 #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

• Kaizen #152 - Client Script Support for the new Canvas Record Forms

  Hello everyone! Have you ever wanted to trigger actions on click of a canvas button, icon, or text mandatory forms in Create/Edit and Clone Pages? Have you ever wanted to control how elements behave on the new Canvas Record Forms? This can be achieved

• Kaizen #142: How to Navigate to Another Page in Zoho CRM using Client Script

  Hello everyone! Welcome back to another exciting Kaizen post. In this post, let us see how you can you navigate to different Pages using Client Script. In this Kaizen post, Need to Navigate to different Pages Client Script ZDKs related to navigation A.

• Kaizen #210 - Answering your Questions | Event Management System using ZDK CLI

  Hello Everyone, Welcome back to yet another post in the Kaizen Series! As you already may know, for the Kaizen #200 milestone, we asked for your feedback and many of you suggested topics for us to discuss. We have been writing on these topics over the

• Recent Topics

• Zoho mail issue.

  I have verified my domain ohhoexpress.online by adding necessary TXT and MX records. But when I am sending email to any external email id, it is showing as zohomail.com. Also while I am sending mail to internal mail id, it is saying user not found whereas

• My email is blocked from sending

  I get this message when I try to send any message .. > Unable to send message, Reason 554 5.1.8 Email Outgoing Blocked We have urgent emails to send and the issue continues to persist from yesterday. Please help us with this issue as soon as possibl

• [WEBINAR] Smooth year-end closure with Zoho Books (KENYA)

  Hello there, This webinar is for all Kenyan businesses looking to wrap up their financial year smoothly! Join our free session to learn how Zoho Books can simplify your year-end process. What to expect from this webinar: - All the latest updates in Zoho

• cannot recieve or send emails

  we are not recieving or cannot send emails.Shows sysytem error

• Zoho Sites - contact us form

  I have added a contact us form to my website. I wanted to change the layout so I deleted the section of Contact Us form. When I again try to add the section of Contact Us form, it shows error that "This form already exists on this page."  I am unable

• switching from POP3 to IMAPI do I need to change settings in Web email?

  hi so I am using Outlook with My Zoho mail, also have Verizon email /AOL. they no longer support POP3 and said imapi is much better, so I want to switch my ZoHo to imapai. I googled and it said i need to change it in my account....i looked at my account

• What functionality is new in the Z025 Spaces UI dashboard compared to the previous Zoho One dashboard?

  My company is interested in creating a revamped dashboard this coming year, and are trying to weigh different platform options. The new Spaces UI is said to be a more "feature-rich" dashboard experience than the previous. Could a developer please explain

• Collections Management: #5 Convenience on Offer, using Self-Checkout

  "Is this the right page? Oh, now, it wants my address again. Why am I being redirected?" These were the exact thoughts running through Karan's mind as he tried to subscribe to an application he genuinely liked. He clicked "Buy Now", expecting a quick

• Tip #50- A Closer Look at the Unattended Access Dashboard- 'Insider Insights'

  Having complete visibility and quick access to everything you need certainly makes managing multiple remote devices a lot easier, and that is precisely what the Unattended Access Dashboard in Zoho Assist is designed to offer. Once you go to the Unattended

• How to update custom multi-user field in Zoho Projects?

  I'm trying to update custom multi-user fields in Zoho Projects via a Deluge function in CRM. The code I have so far is below. It works for updating standard project fields and single-line custom fields, but it does not work to update multi-user fields.

• Tip of the Week #75– Manage your social media messages from a single shared inbox.

  Are you tired of jumping between apps or browser tabs to reply to your business's Facebook and Instagram DMs? Handling customer messages on social media might seem simple, but switching between multiple platforms can easily lead to lost messages, duplicate

• Zoho Map integration tasks have changed - you need to "Locate all instances of Zoho Map integration tasks in your Deluge scripts by searching for the v1 marker... before 16 January 2026"

  The Zoho Map deluge integration task has been changed (as at 21 October 2025) to provide a more structured, JSON-like response. This change affects all three Zoho Map integration tasks (Geocode, Reverse Geocode, and Distance Between). More details can

• Using files from Zoho CRM in Gemini/ChatGPT/Claude

  Hi all, I’ve got subscriptions to Gemini and a few other AI tools which I use for tasks like data enrichment, email composition, etc. In our workflow, we often receive various documents from clients — such as process workflows, BRDs/requirement documents

• Zoho Analytics & Zoho Creator - Modified Time value

  I'm trying to use the Zoho Creator system field 'modified time' in Zoho Analytics, but it's consistently showing 12 hours 'out' In Zoho Creator In Zoho Analytics Is this a constant difference that I just need to correct with a timezone change - or is

• Zoho CRM - Option to create Follow-Up Task

  When completing a Zoho CRM Task, it would be very helpful if there was an option to "Complete and Create Follow-Up Task" in the pop-up which appears. It could clone the task you are closing and then show it on the screen in edit mode, all the user would

• Portal For Different Apps

  I found some older threads on this but didn't see anything very recent. I'm new to Zoho One so forgive me if my terminology is off a bit. I was hoping set up a single point of entry into Zoho One. So, many of the apps could be found in one single place

• Calls undetected

  Zoho Voice records indicate my last call ended at 6:00 PM. All incoming and outgoing calls occurred between 6:00 PM and 7:00 PM.

• Unable to Select Authenticated Domain as Sender

  We’ve already authenticated our domain, but it’s still not appearing in the sender list when we try to run a campaign. Could you please check what might be causing this issue?

• Introducing WhatsApp integration in Bigin

  Greetings! In today's business landscape, messaging apps play a significant role in customer operations. Customers can engage with businesses, seek support, ask questions, receive personalized recommendations, read reviews, and even make purchases—all

• Zoho Projects - Show Task List as dropdown field on Task records

  Hi Project's Team, I noticed today that there is no field on a task record related to the task list it belongs to. A dropdown would be helpful for quickly moving tasks between lists while in a task. I know that you can go to "Other Actions" and choose

• My followed tickets extension is not working under the All departments view

  Hi. I've installed the My followed tickets extension. However, when I try to open the extension under the all departments view, I get the following message: 'Sorry, this extension is not supported in the All Departments view.' How can I solve this p

• Ticket Time Entry to Timesheet

  The title just about sums it up. I have searched here and not found anything relevant, but If I overlooked, then please set me straight.  We have staff that do nothing but close tickets in desk all day long. These tickets represent their timesheet. Is there a way to have this information sync or for a tech to go into their timesheet themselves and sync it with their tickets of the same timeframe?? We waste a ton of time doing timesheets and the old "Clock in/Clock out" isnt detailed enough for us!!

• Calls undetected.

  The call is not showing on the call log.

• Calls undetected

  Zoho is not reading calls made.

• Multi-currency and Products

  One of the main reasons I have gone down the Zoho route is because I need multi-currency support.  However, I find that products can only be priced in the home currency, We sell to the US and UK.  However, we maintain different price lists for each. 

• Missing information data Zoho inventory

  there some missing data in Zoho inventory connection. pick list stock counts bin location we have requested it via mail and the support team doesn’t gove feedback. has anyone achieve to get these info or to ask other ya les

• Calendar Events Issues

  Not able to view scheduled events on my calendar

• Extensions 101 webinar series: Build, integrate, and monetize with extensions

  Attention developers! Are you ready to take your extension development skills to the next level? We're excited to bring back the Extensions 101 webinar series with an expanded lineup of Zoho products and an introduction to more platform features. Last

• Custom Related List Inside Zoho Books

  Hello, We can create the Related list inside the zoho books by the deluge code, I am sharing the reference code Please have a look may be it will help you. //..........Get Org Details organizationID = organization.get("organization_id"); Recordid = cm_g_a_data.get("module_record_id");

• Where are recordings stored?

  I have hosted a couple of test meeting, used the "record" button to start and stop the recording but I am unable to find where are those recordings saved?  Can anybody help? Thanks

• Zoho Desk's integration with Microsoft PowerBI delivers advanced analytics insights

  Hello everyone, Gaining advanced insights through reports and dashboards is one of the critical requirements of every business. In addition to key metrics tracked in Zoho Desk, such as agent performance, SLA adherence, and ticket lifecycle, businesses

• IMAP error message in Zoho mail

  I cannot send emails today. Everything fine for years until today. Get a message: "You are yet to enable IMAP for your account. Please contact your administrator". Does anyone know how to correct this?

• IMAP stopped working today

  Hello! I've been a paid customer for more than 10 years, IMAP was always working fine. But today this is the error I've got on my iPhone: I've tried toggling the IMAP for my account (Mail -> Settings -> Mail accounts) off and on again, but that did not

• Are custom portals accessible on the Zoho learn smartphone app?

  In other words, can users external to my organisation, once signed up, use the app in the same way as internal users? Thanks

• Zoho Books/Inventory - Update Marketplace Sales Order via API

  Hi everyone, Does anyone know if there is a way to update Sales Orders created from a marketplace intigration (Shopify in this case) via API? I'm trying to cover a scenario where an order is changed on the Shopify end and the changes must be reflected

• Conditional Layouts On Multi Select Field

  How we can use Conditional Layouts On Multi Select Field field? Please help.

• Multiple columns in a form

  I am evaluating Zoho Creator. However, I am seeing almost no layout control on a form.  Just a basic 1 or 2 column format that is then imposed on the entire form.  That's not going to work for many, many real world cases. We need multiple columns per line, and we need each line/section to occupy a single column or be able to span the columns.   Someone please tell me that I'm missing something and the capability is actually there.  

• Global search

  Hi! I think it would be great to have a global search that would give you results from all records of a database, no only for a single field of a single form as we have now. Thanks!

• Any insights about API/v2? Having problem for a while.

  I don't know why it is throwing a 404 error, my report name is correct. Has someone had this issue and how you fix it?

• Edit QR code with redirect to form

  Guten morgen, wir haben ein Formular Reklamation_erstellen. Dort soll ein QR Code erstellt werden, der im Lieferschein angezeigt wird. Beim Scannen auf dem soll das jeweilige Formular zum BEARBEITEN geöffnet werden. Leider bekomme ich es nur so hin, dass

• Next Page