+91-9524440556 connect@thanasi.co.in
Careers Resources Client Portal
Enterprise IT Services MNC-Grade Delivery

API-Led Integration
& Legacy Modernization

Unlock trapped business value inside your legacy systems. We design, build, and manage enterprise-grade API architectures that connect your ERP, CRM, supply chain, and operational tools — without ripping and replacing what already works.

300+
APIs Deployed
98%
Uptime SLA
50+
Enterprise Clients
15+
Years Expertise
 The Real Cost of Legacy Debt

Your Existing Systems Are
Holding Revenue Hostage

Decision-makers consistently report that aging infrastructure, siloed data, and brittle point-to-point integrations are the #1 barrier to digital growth. Every day without a modernization strategy costs real money.

Point-to-Point Integration Chaos
100+ brittle connections that break with every system update. Maintenance cost spirals out of control, blocking every new initiative.
New Feature Delivery Takes Months
Developer teams waste 60%+ of sprint time on integration work instead of building business value. Time-to-market suffers as competition accelerates.
No Single Source of Truth
Customer, inventory, and financial data siloed across ERP, CRM, and legacy systems. Business intelligence is always delayed and unreliable.
Security & Compliance Gaps
Legacy systems lack modern security controls. Every audit cycle is a fire drill. Audit trails are incomplete, putting certifications at risk.

Our API-Led Solution

We replace the chaos with a structured, three-layer API architecture that decouples your experience layer from your system layer — giving every team a clean, versioned, governed interface to build on.

System APIs — Expose legacy ERP, CRM, and databases through secure, versioned endpoints. No rip-and-replace required.
Process APIs — Orchestrate complex business workflows. Order-to-cash, patient onboarding, shipment tracking — automated end-to-end.
Experience APIs — Tailored APIs for every consumer: mobile app, partner portal, web frontend, IoT device — all from one managed plane.
API Gateway & Security — OAuth 2.0, rate limiting, threat protection, and audit logging baked in from day one.
Developer Portal — Self-service API catalog so internal teams and partners can build faster without waiting on IT.
 Industry-Specific Solutions

We Speak Your Industry's Language

Not generic middleware advice. Deep domain expertise mapped to your compliance obligations, operational workflows, and growth targets.

Healthcare & Health Systems
EHR · Payer · Pharma · Telehealth

Healthcare organisations run on fragmented legacy stacks — Epic, Cerner, HL7 feeds, insurance claim systems, and a dozen departmental tools that were never designed to talk to each other. The result is care gaps, claim denials, and a compliance nightmare.

 Pain Points We Eliminate

  • Disconnected EHR and billing systems causing manual reconciliation and claim errors
  • Patient data stranded in departmental silos — cardiology can't see radiology notes
  • HIPAA audit failures due to uncontrolled data movement between systems
  • Telehealth platforms unable to synchronise with core EHR in real-time
  • Pharmacy and insurance payer integrations requiring costly custom builds per partner
42%
Reduction in claim denials
6hr
Faster patient discharge
100%
HIPAA audit trail coverage
3×
Faster payer onboarding

Our Healthcare API Solutions

HL7 / FHIR Integration Layer
Bi-directional HL7 v2/v3 and FHIR R4 APIs connecting Epic, Cerner, Allscripts and custom EHRs. Structured patient data flowing securely across the care continuum.
Payer-Provider Connectivity Hub
EDI 837/835 automation, real-time eligibility checks, and prior authorisation APIs integrated with major insurance clearinghouses.
HIPAA-Compliant API Gateway
End-to-end encryption, PHI de-identification, fine-grained RBAC, and immutable audit logs — meeting HIPAA Privacy and Security Rule requirements.
Telehealth & Remote Monitoring APIs
Real-time WebSocket and REST APIs enabling virtual consultation platforms, RPM device data ingestion, and care-plan synchronisation.
Pharmacy & Lab Integration
Surescripts e-prescribing, lab order/result routing (LOINC codes), and specialty pharmacy benefit APIs out-of-the-box.
Real Estate & PropTech
CRE · Residential · Property Management · REITs

Real estate enterprises manage thousands of properties, tenants, leases, and financial instruments across systems that rarely communicate. Manual data transfer drives errors, delays closings, and creates compliance exposure.

 Pain Points We Eliminate

  • Lease data trapped in spreadsheets, disconnected from Yardi / MRI / Salesforce CRM
  • Property listing syndication requiring manual updates to 15+ portals daily
  • Maintenance requests falling through gaps between tenant portal and work order systems
  • Delayed financial reporting due to no real-time GL integration with property management
  • Tenant onboarding taking weeks due to disconnected identity, credit, and contract systems
65%
Faster lease processing
Real-time
Portfolio visibility
90%
Reduction in manual data entry
2 days
Average tenant onboarding

Our Real Estate API Solutions

Yardi / MRI / AppFolio Middleware
Bi-directional synchronisation between leading property management platforms and your CRM, accounting, and tenant portal — with conflict resolution and audit trails.
MLS & Listing Syndication API
Single-write, multi-publish architecture. Update one system, auto-push to Zillow, Realtor.com, CoStar, and internal portals simultaneously.
Smart Building & IoT Integration
BACnet, Modbus, and KNX protocol bridges connecting HVAC, access control, and energy management to your central property management dashboard.
Digital Lease & Contract Automation
DocuSign / Adobe Sign webhooks connected to your lease management system. Auto-trigger rent roll updates, GL entries, and tenant provisioning on execution.
Financial Reporting Integration
Real-time NOI, CAP rate, and cash flow data from properties piped directly into your ERP (SAP / Oracle) with automated bank reconciliation.
Logistics & Supply Chain
3PL · Freight · Warehousing · Last-Mile

Supply chain disruptions cost enterprises billions annually — and most are caused by visibility gaps between carriers, warehouses, and customer order systems. Real-time connectivity is no longer a differentiator; it's table stakes.

 Pain Points We Eliminate

  • EDI 204/214 batch processing causing 24-hour shipment visibility lag
  • Carrier TMS disconnected from WMS, causing inventory accuracy problems
  • Manual customs and compliance documentation creating border crossing delays
  • E-commerce order spikes overwhelming legacy fulfilment routing logic
  • No real-time ATP (Available-to-Promise) for customer service teams
Real-time
Shipment visibility
38%
Reduction in OSD claims
5min
Order-to-route latency
99.8%
EDI message accuracy

Our Logistics API Solutions

Real-Time Track & Trace API
Aggregate GPS, barcode, RFID, and carrier APIs into a single normalised tracking stream. Push events to customer portals, ERP, and Slack in under 500ms.
EDI Modernisation & AS2/AS4
Migrate batch EDI to event-driven API flows. Supports all X12 and EDIFACT transaction sets with automatic acknowledgement and error management.
WMS / TMS / OMS Integration
Bi-directional synchronisation between Manhattan Associates, SAP EWM, Oracle WMS, and JDA TMS — order status, inventory, and routing in sync.
Multi-Carrier Rate Shopping
Aggregate rate APIs from FedEx, UPS, DHL, and regional carriers. Apply business rules for routing optimisation and automatic SLA protection.
Customs & Trade Compliance APIs
Automated HS code classification, sanctioned party screening, and CBP/AES filing via GTNEXUS and Descartes integrations.
Retail & E-Commerce
Omnichannel · DTC · Marketplace · B2B Commerce

Modern retail runs on 20+ platforms simultaneously — Shopify, SAP, Salesforce Commerce, warehouse management, loyalty, and 3PL. Without a unified integration layer, the customer experience breaks at every seam.

 Pain Points We Eliminate

  • Inventory overselling due to lag between e-commerce platform and ERP stock levels
  • Returns and refunds requiring manual processing across 3 systems and 2 business days
  • Disconnected loyalty and marketing platforms producing inconsistent customer experience
  • New marketplace onboarding (Amazon, eBay) requiring months of custom development per channel
  • Price and promotion changes taking hours to propagate across all channels
99.5%
Inventory accuracy
4hr
New channel go-live
28%
Increase in conversion rate
Zero
Oversell incidents

Our Retail API Solutions

Omnichannel Inventory Sync
Real-time inventory APIs connecting Shopify, WooCommerce, SAP IS-Retail, and warehouse systems. Automatic safety stock adjustments across channels during peaks.
Order Management Orchestration
Intelligent order routing APIs that apply fulfilment rules — BOPIS, ship-from-store, dropship — in real time with automatic ERP posting and 3PL notification.
Marketplace Connector Framework
Pre-built adapters for Amazon Seller Central, eBay, Walmart Marketplace, and ASOS. Normalised product catalogue, pricing, and order APIs that work across every channel.
Unified Customer Profile API
Merge loyalty, purchase history, support tickets, and browsing data into a single customer identity across Salesforce, SAP, and your e-commerce platform.
Payment & Fraud API Hub
Single integration point for Stripe, Adyen, PayPal, BNPL providers, and fraud scoring services (Kount, Signifyd) with one-click reconciliation to your ERP.
Manufacturing & Industry 4.0
Discrete · Process · Automotive · Aerospace

Manufacturers run SAP, MES, SCADA, PLM, and OT systems in near-isolation. The gap between the shop floor and the top floor creates decisions that lag reality by days — costing yield, quality, and on-time delivery.

 Pain Points We Eliminate

  • MES data not flowing to SAP PP/PM — production orders closed manually hours after completion
  • OEE and quality KPIs computed in spreadsheets from manually extracted data
  • Supplier EDI still running on batch overnight, causing procurement blind spots
  • PLM change orders not triggering automatic BOM updates in ERP
  • IIoT sensor data stranded in SCADA — no ML pipeline for predictive maintenance
23%
OEE improvement
Real-time
Shop floor visibility
40%
Reduction in unplanned downtime
50%
Faster NPI cycles

Our Manufacturing API Solutions

OT/IT Integration Bridge
OPC-UA, MQTT, and Modbus protocol bridges translating shop-floor signals into REST/GraphQL APIs consumable by SAP, Azure IoT Hub, and analytics platforms.
MES ↔ ERP Synchronisation
Real-time production order confirmations, goods movements, and quality notifications flowing from Siemens Opcenter, Rockwell FactoryTalk, or custom MES to SAP S/4HANA.
Predictive Maintenance Data Pipeline
Sensor time-series data APIs feeding ML models for anomaly detection. Automatic work order creation in SAP PM when threshold breaches are predicted.
PLM / PDM to ERP Change Propagation
Engineering change orders in PTC Windchill or Siemens Teamcenter automatically triggering BOM updates, MRP re-runs, and supplier notifications in ERP.
Digital Twin Integration APIs
Bidirectional data feeds between Azure Digital Twins / AWS IoT TwinMaker and your operational systems for real-time virtual plant simulation.
 Architecture Overview

Three-Layer API Architecture That Scales With You

Every modernisation engagement follows MuleSoft's proven API-led connectivity framework — decoupling consumer from producer, enabling independent release cycles and zero-downtime evolution.

CONSUMERS
Mobile Apps
iOS · Android
Web Apps
SPA · SSR
Partner APIs
B2B Portals
IoT / Edge
MQTT · AMQP
AI / ML
Data Pipelines
 EXPERIENCE LAYER — Consumer-Specific APIs
Customer API
Profile · Orders
Partner API
B2B · EDI
Analytics API
KPIs · Reports
Mobile API
BFF Pattern
 API Gateway & Management Hub
Authentication  ·  Rate Limiting  ·  Threat Protection  ·  Analytics  ·  Developer Portal  ·  Versioning
 PROCESS LAYER — Orchestration & Business Logic
Order Process
OTC Workflow
Onboarding
KYC · Provisioning
Billing Process
Invoice · Reconcile
Fulfilment
Route · Ship
 SYSTEM LAYER — Enterprise System APIs
SAP ERP
S/4HANA · R/3
Salesforce
CRM · Service
Oracle DB
EBS · Fusion
Azure / AWS
Cloud Services
Legacy COBOL
Mainframe Wrap
WMS / MES
Shop Floor
 Pre-Built Connectors

Connect Any System. Build Once. Reuse Everywhere.

500+ pre-built connectors across Web, Mobile, ERP, CRM, Cloud, and OT systems. Our integration mesh handles the protocol translation so your teams never have to.

ERP Systems
Deep bidirectional integration with the world's leading enterprise resource planning platforms using native APIs and certified connectors.
SAP S/4HANAOracle EBSMicrosoft D365Epicor
CRM & Marketing
Unify customer data across sales, service, and marketing platforms with bi-directional sync and golden record management.
SalesforceHubSpotMS DynamicsMarketo
Cloud Platforms
Native integration with hyperscaler services including serverless, managed queues, data lakes, and AI/ML pipelines.
AWSAzureGCPSnowflake
Mobile & Web
BFF (Backend-for-Frontend) API patterns optimised for React Native, Flutter, iOS Swift, Android Kotlin, and progressive web apps.
React NativeFlutterPWANext.js
IoT & OT Systems
Industrial protocol bridges enabling SCADA, PLC, and sensor data to become first-class API citizens in your enterprise architecture.
OPC-UAMQTTModbusBACnet
Payments & FinTech
Unified payment orchestration across processors, fraud tools, and accounting systems with PCI-DSS compliant API flows.
StripeAdyenPayPalPlaid
 How We Engage

From Discovery to Production in Weeks, Not Months

A structured delivery methodology with fixed milestones, clear ownership, and measurable outcomes at every stage.

01
Discovery & Assessment
Integration landscape audit, pain point mapping, ROI modelling, and API strategy blueprint.
Week 1–2
02
Architecture Design
API contract definition (OAS 3.0), data model design, security architecture, and tech stack selection.
Week 2–4
03
Agile Build & Integration
Sprint-based API development, connector configuration, automated testing, and CI/CD pipeline setup.
Week 4–12
04
Testing & Go-Live
End-to-end integration testing, performance benchmarking, security scanning, and phased production rollout.
Week 10–14
05
Managed Operations
24/7 API monitoring, SLA management, version governance, and continuous optimisation on a retainer model.
Ongoing

Measurable Business Impact

Numbers from live enterprise deployments — not projected estimates.

0%
Reduction in integration development time
0×
Faster time-to-market for new digital products
0.9%
API uptime across all production deployments
0%
Average IT operational cost reduction in year 1
 Technology Stack

Enterprise-Grade Tools. Proven in Production.

We work across the full integration toolchain — from iPaaS and ESB platforms to cloud-native API gateways and event streaming infrastructure.

Integration Platforms
  • MuleSoft Anypoint — Enterprise iPaaS
  • Azure Integration Services — Logic Apps + APIM
  • AWS API Gateway — Serverless REST / WebSocket
  • IBM App Connect — Legacy ESB Modernisation
  • WSO2 API Manager — Open-Source Gateway
  • Kong Enterprise — High-Performance Gateway
Data & Messaging
  • Apache Kafka — Event Streaming at Scale
  • Azure Service Bus — Reliable Message Queuing
  • AWS SQS / SNS — Managed Pub/Sub
  • RabbitMQ — AMQP Message Broker
  • Debezium / CDC — Database Change Capture
  • Snowflake / Databricks — Analytics Integration
Security & Governance
  • Okta / Auth0 — Identity & OAuth 2.0
  • HashiCorp Vault — Secrets Management
  • Apigee Sense — API Threat Detection
  • OpenAPI 3.0 / AsyncAPI — Contract-First Design
  • Datadog / Dynatrace — API Observability
  • Terraform / Ansible — Infrastructure as Code
 Why Choose Us

Six Reasons Decision-Makers Trust Us With Enterprise Modernisation

API-First, Not Bolted-On
We design API contracts before writing a single line of code. This forces alignment between business requirements and technical delivery — preventing scope creep and rework.
80%
Less rework vs traditional integration projects
Reusable Asset Library
Every integration we build becomes a versioned, reusable asset. Your second integration project costs 60% less than the first because the foundational components already exist.
60%
Cost reduction on subsequent integrations
Zero-Trust Security Built In
Security is a layer in the architecture, not an afterthought. Every API endpoint is protected with OAuth 2.0, mTLS, rate limiting, and anomaly detection from the first release.
0
Security incidents in production deployments
Observable from Day One
Every API ships with full observability — latency percentiles, error rates, traffic trends, and business metrics. Your ops team sees the data they need without building custom dashboards.
<5min
Mean time to detect API issues
Scales Without Re-Architecture
Our integration meshes are horizontally scalable. Black Friday traffic spikes, acquisition-driven growth, or new market entries — the infrastructure adapts automatically without engaging professional services.
10×
Traffic spike handling without re-architecture
Knowledge Transfer Guaranteed
We don't create dependency. Every engagement includes comprehensive documentation, runbooks, developer training, and a formal handover — leaving your internal team fully capable of owning the estate.
100%
Internal team capability post-handover
 Client Outcomes

What CTOs & IT Directors Say

★★★★★

"We had 47 point-to-point integrations between our EHR, billing platform, and insurance clearinghouse. The team replaced them with a clean API layer in 14 weeks. Claim processing time dropped by 40% and our HIPAA audit was the cleanest in five years."

DM
Dr. Marcus Chen
CTO, Regional Health Network
Healthcare
★★★★★

"Our Shopify, SAP, and three 3PL platforms were completely disconnected. We were losing £2M annually in oversell penalties. After the API integration project, inventory accuracy is at 99.7% and our ops team spends zero time on manual reconciliation."

SR
Sarah Rossetti
VP Engineering, European Retailer
Retail & E-Commerce
★★★★★

"We were running a 30-year-old COBOL mainframe and a modern SAP S/4HANA side by side with zero data sync. The mainframe wrapper API they built gave us a clear modernisation path without a big-bang rewrite. Brilliant architecture work."

TW
Thomas Weiss
Director of IT, Automotive Tier-1
Manufacturing
 Deal Evaluation

Questions Decision-Makers Ask Before Signing

How do you handle integration with systems where we have no access to source code?
We build non-invasive System API wrappers using available interfaces — database views, file exports, screen-scraping adapters, or vendor-provided SDKs. This wrapping pattern is the core of the API-led approach: the legacy system doesn't need to change. We expose its capabilities through a modern, versioned API and hide the underlying complexity. We've done this with COBOL mainframes, AS/400 systems, and 30-year-old proprietary databases.
What is your typical project timeline and what affects it most?
A focused first integration (e.g., CRM ↔ ERP sync) runs 8–14 weeks from contract to production. The main variables are: the quality of existing API documentation (or lack thereof), the availability of your internal SMEs during design phases, and whether the data model is well-understood. We provide a detailed project timeline during the discovery phase with fixed sprint commitments so you always know what's being delivered when.
How do you avoid creating another set of dependencies and technical debt?
This is exactly what we're solving for. The API-led model creates a versioned contract layer that decouples consumers from producers. When SAP upgrades, only the System API changes — the Process and Experience APIs above it remain untouched. We also follow strict deprecation policies, maintain a developer portal with full API lifecycle management, and deliver all architecture decisions as ADRs (Architecture Decision Records) so the rationale is never lost.
Can you work with our existing internal development team?
Yes — we operate in three engagement models: (1) Full delivery, where we own the entire build; (2) Embedded team augmentation, where our architects lead and your developers build under our guidance; (3) Advisory, where we design and QA-review work your team executes. Most enterprise clients prefer a hybrid model where we design and lead the initial build, then transition ownership to internal teams with structured training.
How is the post-go-live support structured?
All production environments include a 30-day hypercare period post-launch with same-day response SLAs. Beyond that, we offer tiered managed service agreements: Essential (business hours monitoring + P1/P2 response), Professional (24/7 monitoring, performance optimisation, 4-hour RTO), and Premium (dedicated SRE, proactive capacity management, continuous improvement sprints). All tiers include monthly service reviews and API governance reporting.
What does commercialisation look like — T&M, fixed price, or outcome-based?
We offer all three commercial models depending on project clarity and risk profile. Fixed-price engagements are available once the discovery phase defines a clear scope. Time-and-materials suits complex multi-phase programmes where scope evolves. For strategic partnerships, we structure outcome-based pricing tied to specific business KPIs (claim processing time, inventory accuracy, time-to-market). We are happy to accommodate your procurement process — MSA + SOW, framework agreements, or public sector frameworks.
 Book a Consultation

Reserve Your Free
Architecture Review

Talk directly with a senior integration architect. We'll assess your current landscape, identify the highest-ROI integration opportunities, and give you a clear modernisation roadmap — no sales pitch, just technical substance.

  • 30 or 60-minute focused technical discussion
  • Pre-session questionnaire to maximise meeting value
  • Receive a written integration maturity assessment
  • No commitment — understand costs and timelines first
  • NDAs honoured. We sign yours, or provide ours
  • Available for APAC, EMEA, and Americas time zones
Trusted by Enterprise Teams

Over 50 enterprise organisations have used this consultation to kickstart their integration modernisation. Average deal value: $380K. Average first-year ROI: 340%.

 Select Date & Time
Choose your preferred consultation slot
—
Su
Mo
Tu
We
Th
Fr
Sa
 Meeting Duration
 Your Details
We'll send confirmation and a pre-session brief
 Confirm Booking
Review your details before confirming
Meeting Confirmed!
We've received your booking and will send a calendar invite with a video link to your email within 15 minutes.

Need to reschedule? Reply to the confirmation email or contact us directly.

 Limited Availability

Your Legacy Systems Won't Modernise Themselves.

Every quarter without a modernisation strategy is revenue left on the table. Book a free architecture review today — our senior architects have capacity for three new enterprise engagements this month.

Send Us an RFP

 NDA available before any technical discussion  ·   ISO 27001 certified  ·   Serving clients in 18 countries

Next Generation Talent Program Join our internship to kickstart your career

Proof of Concept Request Share your requirements and we'll help you build confidence

Please provide as much detail as possible about your requirements, success criteria, and any specific technologies you'd like us to use.

Innovation partner for Research and Development challenges Share your requirements and we'll help you build confidence

Upload any relevant documents or NDA templates

Schedule Meeting With Us Let's discuss how we can help achieve your goals

Let's Partner with Us for Outsourcing Success

WhatsApp
Evaluating Cloud, Mobile, ERP, or CRM Integration? Our Solutions Team is available.

Happy to Achieve, Our Client Partner is available.

T

Tamizhini

Last seen 5 min ago
New message ↓

Success!