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API Integration Services That Stop the Copy-Paste
When your website, CRM, accounts and courier don't talk, your team re-types data and mistakes slip in. We connect them with integrations that retry, log and alert, so data moves on its own.
What You Get
- Payment gateway integration
- ERP, CRM and Tally sync
- Retries, logs and alerts
- Documented for your team
- Payment Gateways
- ERP Sync
- Webhooks
In Short
What Are API Integration Services?
Building the connections that let two pieces of software share data automatically, for example sending website orders to Tally, leads to your CRM or payments into your app. LitSpark's API integration services cover the design, the build, error handling and monitoring, so a failed sync gets retried and flagged instead of silently losing data.
Updated · LitSpark Solutions, Bengaluru
- Typical integration
- 1–4 weeks
- Patterns
- REST, GraphQL, webhooks
- Monitoring
- Logs, retries, alerts
- Docs
- Handed to your team
What We Connect
Integrations We Build Most.
Payment Gateway Integration
Razorpay, PayU, Cashfree, Stripe and UPI with refunds and reconciliation.
ERP and Accounting Sync
Orders, invoices and stock flowing to Tally, Zoho Books or SAP.
CRM Integration
Leads from forms, ads and WhatsApp landing in HubSpot, Zoho or Salesforce.
Logistics and Courier APIs
Shiprocket, Delhivery and Blue Dart labels and tracking.
Custom API Development
REST and GraphQL APIs so partners and apps can use your data.
Government and KYC APIs
GST, e-invoice, DigiLocker, Aadhaar and PAN verification.
Tech Stack
Tools and Platforms.
- Build
- Node.jsPythonTypeScript
- Patterns
- RESTGraphQLWebhooksQueues
- Platforms
- RazorpayTallyHubSpotShiprocket
- Ops
- AWS Lambdan8nSentryPostman
How It Works
How an Integration Gets Built.
- 01
Map the Data
Which fields move where, how often and what happens on error.
- 02
Access
API keys, sandboxes and test accounts set up.
- 03
Build
Integration code with retries and validation.
- 04
Test
Edge cases, failures and real data in a sandbox.
- 05
Monitor
Logs, alerts and a dashboard once it's live.
Pricing
What API Integration Costs.
Price depends on the systems, data volume and error handling needed. Typical bands:
Single Integration
₹40,000–1 lakh
1–2 weeks
One system to another, such as orders to Tally.
Integration Bundle
₹1–3 lakh
3–6 weeks
Several systems with a shared sync service.
Custom API Build
From ₹3 lakh
4–10 weeks
Your own documented API for partners and apps.
Prefer no-code automations? See Workflow Automation.
Portfolio
Products and Integrations We've Built.
Development · E Commerce
Gasman4U - Small ECommerce Solution
GasMan4U is an end-to-end gas delivery platform featuring a customer mobile app, public product website, delivery workflow, and administrative portal for managing products, orders, customers, stores, payments, and delivery personnel.
- Mobile App Development
- Web Development
Built with: React, React Router, Tailwind CSS, shadcn/ui
1 MonthVisit Live Site
Development · Electronics
TejasInfo - Inventory Management Solution
A custom end-to-end ERP and inventory management platform for Tejas Info Solutions, covering procurement, inward processing, item-level stock tracking, sales, internal transfers, returns, invoicing, and operational reporting.
- Web Development
- Custom Development
- Hardware Development
Built with: React 19, JavaScript, Tailwind CSS, React Router
3 MonthsVisit Live Site
Development · Logistics
City Connect CRM
GoSmart Dashboard is an end-to-end logistics operations platform for managing leads, quotations, consignments, multi-leg movements, trip sheets, warehouses, delivery associates and customer follow-ups. It provides role-based workflows, live consignment tracking, dynamic LR generation with version history, operational calendars, reporting and printable documents—all within one centralized dashboard.
- Mobile App Development
- Web Development
- Custom Development
- Cloud & DevOps Services
Built with: React 19, FastAPI, MongoDB, Python
3 Months
Why LitSpark
Why Teams Pick Our API Integration Services.
Built to Fail Safely
Retries, queues and alerts so no order or lead is lost.
Indian Platforms Known
We've integrated Razorpay, Tally, GST and Indian couriers many times.
Documented
Your developers get clear docs, not a black box.
Maintained
We update integrations when APIs change.
Before You Start an Integration.
- Which systems hold the master data?
- Real-time or scheduled sync?
- What happens when a call fails?
- Do you have API access and sandboxes?
- Who gets alerted on errors?
- Who maintains it when APIs change?
Who Needs It
Teams Drowning in Manual Data Entry.
Ecommerce Brands
Orders to courier, invoices to accounts, automatically.
SaaS Products
Integrations customers ask for before they'll buy.
Fintech and Lending
KYC, credit bureau and bank APIs.
Operations Teams
Systems that finally share one version of the truth.
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How much do API integration services cost?
A single integration, such as website orders to Tally, usually costs ₹40,000–1 lakh. Connecting several systems typically costs ₹1–3 lakh.
How long does a payment gateway integration take?
A standard Razorpay or Stripe integration with webhooks and refunds takes about one to two weeks, including testing.
Can you integrate with Tally?
Yes. We sync sales, purchase vouchers, ledgers and stock with Tally Prime, on a schedule or in near real time.
What if the other system's API changes?
Our monitoring catches failures quickly, and with a support plan we update the integration so your data keeps flowing.
Can you build an API for our product?
Yes. We design and document REST or GraphQL APIs with authentication, rate limits and versioning.
Let's talk
List the Systems You Use.
Tell us what should talk to what. We'll map the integration and send a fixed quote.
- Avg. response
- 24h
- Initial consult
- Free
- Satisfaction
- 100%