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

• Totals for Sales Tax Report

  On the sales tax report, the column totals aren't shown for any column other than Total Tax. I can't think of a good reason that they shouldn't be included for the other columns, as well. It would help me with my returns, for sure. It seems ludicrous

• Free Webinar: Zoho Sign for Zoho Projects: Automate tasks and approvals with e-signatures

  Hi there! Handling multiple projects at once? Zoho Projects is your solution for automated and streamlined project management, and with the Zoho Sign extension, you can sign, send, and manage digital paperwork directly from your project workspace. Join

• Exported Report File Name

  Hi, We often export reports for information. It is time consuming to rename all the reports we export on a weekly basis, as when exported their default name is a seemingly random string of numbers. These numbers may be important, I'm not sure, but I am

• Automatic Refresh on Page?

  Hi everyone, We use a page as a dashboard which shows data for the laboratory and tasks pending etc. Is there a way to set the page to automatically refresh on a X time? Many thanks TOG

• Add RTL and Hebrew Support for Candidate Portal (and Other Zoho Recruit Portals)

  Dear Zoho Recruit Team, I hope you're doing well. We would like to request the ability to set the Candidate Portal to be Right-to-Left (RTL) and in Hebrew, similar to the existing functionality for the Career Site. Currently, when we set the Career Site

• Default Reminder Time in New Tasks or New Event?

  Any way to change this from 1:00am? Thanks, Gary Moderation Update (February 2026): With the Calendar preferences, the default reminder time for Meetings, Appointments and All-Day Meetings can be set. Read more: Calendar preferences in Zoho CRM Regarding

• Dynamic Field Folders in OneDrive

  Hi, With the 2 options today we have either a Dynamic Parent Folder and lots of attachments all in that one folder with only the ability to set the file name (Which is also not incremented so if I upload 5 photos to one field they are all named the same

• Right Shift key not sending to Zoho Assist environments

  I'm unable to use Right Shift key in Zoho environments. Zoho environments are Win10. Computer I access from is Win 11. Issue started when I changed to Win 11. Have tried: - Multiple browsers - web client AND desktop client - 3rd party mapping tools to

• About Meetings (Events module)

  I was working on an automation to cancel appointments in zoho flow , and in our case, we're using the Meetings module (which is called Events in API terms). But while working with it, I'm wondering what information I can display in the image where the

• PDF Annotation is here - Mark Up PDFs Your Way!

  Reviewing PDFs just got a whole lot easier. You can now annotate PDFs directly in Zoho Notebook. Highlight important sections, add text, insert images, apply watermarks, and mark up documents in detail without leaving your notes. No app switching. No

• Ability to assign Invoice Ownership through Deluge in FSM

  Hi, As part of our process, when a service appointment is completed, we automated the creation of the invoice based on a specific business logic using Deluge. When we do that, the "Owner" of the invoice in Zoho FSM is defaulted to the SuperAdmin. This

• How do you do ticket add ons in Backstage?

  Hi Everyone, If you wanted to have general admin tickets and allow for add ons, like camping, or car or Carbon offset. What would you do? Peace Robin

• From Zoho CRM to Paper : Design & Print Data Directly using Canvas Print View

  Hello Everyone, We are excited to announce a new addition to your Canvas in Zoho CRM - Print View. Canvas print view helps you transform your custom CRM layouts into print-ready documents, so you can bring your digital data to the physical world with

• validation rules doesn't work in Blueprint when it is validated using function?

  I have tried to create a validation rule in the deal module. it works if I try to create a deal manually or if I try to update the empty field inside a deal. but when I try to update the field via the blueprint mandatory field, it seems the validation

• Pull cells from one sheet onto another

  Hello all! I have created an ingredients database where i have pricing and information and i want to pull from that database into a recipe calculator. I want it to pull based on what ingredient I choose. The ingredients database has an idea and i want

• Emails Failing with “Relaying Issues – Mail Sending Blocked” in ZeptoMail

  Hello ZeptoMail Support Team, We are facing an email delivery issue in our ZeptoMail account where emails are failing with the status “Process failed” and the reason “Relaying issues – Mail sending blocked.” Issue Details Agent Name: mail_agent_iwwa From

• How does Zoho handle support operations for our EU users?

  Dear Zoho users, We have some news and reminders about how we handle support operations for Zoho users in the EU Data Center. This is part of our broader commitment to ensuring GDPR compliance and providing secure data handling for all users. We'd like

• Layout Adjustment.

  Hello Latha, Hope you are doing well. I wanted to check with you about adjusting the layout columns in the Service Report from the backend, as currently there is no capability for us to customize the layout from our end. Below is the output that I am

• Anyone in Australia using Zoho Books AND has their account with NAB?

  Hi I have an account with both NAB and Suncorp. Suncorp transaction come in the next day however NAB transactions take 4-5 business days to appear. eg: A deposit made today in my Suncorp will be imported into Zoho tomorrow. A deposit made today to the NAB account will be imported maybe Saturday (Friday overnight). I have contacted both Zoho and NAB but noone seems to know why. I was just wondering if anyone else in Australia uses NAB and has this issue (or doesn't) maybe we could compare notes and

• Zoho Often Lag

  Desk Team, We've noticed that Desk, Creator & other apps seems to lag more these days. We often refresh multiple times.

• Importing into the 'file upload' field

  Can you import attachments into the file upload field. I would expect it to work the same way as attachments do, But can't seem to get it to work. Moderation Update: The option to import into File Upload and Image Upload fields has been supported. Read

• Layout Rules Don't Apply To Blueprints

  Hi Zoho the conditional layout rules for fields and making fields required don't work well with with Blueprints if those same fields are called DURING a Blueprint. Example. I have field A that is used in layout rule. If value of field A is "1" it is supposed to show and make required field B. If the value to field A is "2" it is supposed to show and make required field C. Now I have a Blueprint that says when last stage moves to "Closed," during the transition, the agent must fill out field A. Now

• Why is the ability Customize Calls module so limited?

  Why can't I add additional sections? why can't I add other field types than the very limited subset that zoho allows? Why can I only add fields to the outbound/inbound call sections and not to the Call Information section?

• Zoho Desk blank screen

  opened a ticket from my email, zoho desk comes up blank, nothing loads. our receptionist also gets the same thing under her login on her computer. our sales rep also gets same thing on zoho desk at his home on a different computer. I tried clearing cache/history/cookies,

• Optimum CRM setup for new B2B business

  Can some advise the most common way to setup Zoho CRM to handle sales for a B2B company? Specifically in how to handle inbound/outbound emails. I have spent hours researching online and can't seem to find an accepted approach, or even a tutorial. I have

• filter on sheets mobile (iOS, iPadOS) does not work

  I have this issue on every spreadsheet, whether imported or created natively in Zoho Sheets. I can use on desktop without issue: desktop screenshot on iOS the filter dropdowns are not there and there is no way to add them mobile iPadOS looks the same

• Canva Integration

  Hello! As many marketing departments are streamlining their teams, many have begun utilizing Canva for all design mockups and approvals prior to its integration into Marketing automation software. While Zoho Social has this integration already accomplished,

• Can't edit Segments

  Happening with 2 different Zoho One environments, in different browsers. Please fix.

• Error 554 Email Outgoing Error

  Our email address (info@tvbhouston) was recently migrated to a new domain host on WordPress, and our SSL certificate is still pending. We would like to continue using your service, but we are currently unable to send emails. Could you please re-enable

• Transfer ownership of files and folders in My Folders

  People work together as a team to achieve organizational goals and objectives. In an organization, there may be situations when someone leaves unexpectedly or is no longer available. This can put their team in a difficult position, especially if there

• Consumer Financing

  Does Zoho currently have a payment gateway (such as Stripe, Square, etc) which offers financing for customers? So, let's say the estimate we give the customer is greater than what they can afford at the time, but we can sell the service now, letting them

• Subform edits don't appear in parent record timeline?

  Is it possible to have subform edits (like add row/delete row) appear in the Timeline for parent records? A user can edit a record, only edit the subform, and it doesn't appear in the timeline. Is there a workaround or way that we can show when a user

• 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

• Deluge function to copy parent record file upload field to child record file upload field

  I'm stuck trying to write a deluge function that is triggered via automation in child record "Appointments," confirms if a file is in file upload "Report" field of parent "Contacts" record via Contacts lookup field "Contact_Name". If no file is in parent

• Make panel configuration interface wider

  Hi there, The same way you changed the custom function editor's interface wider, it would be nice to be able to edit panels in pages using the full width of the screen rather than the currently max-width: 1368px. Is there a reason for having the configuration panel not taking the full width? Its impossible at this width to edit panels that have a lot of elements. Please change it to 100% so we can better edit the layouts. Thanks! B.

• Image Compression Options

  Much better if we have level of options to compress the image [20%, 40%...] We are dealing with service reports daily that has before and after photos (image field)- the file size too large and one thing, the current limit is 10mb or 15mb for report

• How to hide or archive a blog post temporarily in Zoho commerce website builder?

  I would like to temporarily hide or archive a blog post in zoho commerce website builder so that it doesnt appear on my website till I enable it again. I tried to look for this option but could not find it.  It only allows me to permanently delete a blog

• How to mix different types of inputs (such as dropdown list and textbox)

  Hi, I'm creating a form called "Room Reservations" for a company. I created a "table" using "Matrix Choice". I created "Room 1", "Room 2" and "Room 3" with the "Questions". I would then like to create two columns with the "Answers", one called "Department"

• How to Convert NSF to PST Format Effortlessly? - SYSessential

  It is highly recommended to obtain the error-free solution of the SYSessential NSF to PST converter to convert NSF files from Lotus Notes. Using this professional software, it becomes easier to convert all NSF database items, including emails, journals,

• Zoho Commerce - Poor Features Set for Blogging

  Hi Zoho Commerce team, I'm sure you will have noticed that I have been asking many questions about the Blogs feature in Commerce. I thought that it would be useful if I share my feedback in a constructive way, to highlight the areas which I feel need

• Next Page