01
Name the outcome
One process or product surface, who owns it, and what “done” looks like.
Next.js, AI & LiveKit development for startups. Fixed-price fixes and MVPs — start in 48h.Reply with a scoped plan within 24 hours.
Expertise in
AI / MLBlockchainWeb3IoTAutomationCloudSmart Contracts
Quick fixed-price work
Small jobs, fixed prices, start in 48h
Need one thing done well and fast? Pick an offer — you get a confirmed scope within 24 hours.
Code / security audit
$199
2–3 days
A written review of one repo: security issues, risky dependencies, and a ranked fix list.
Book thisBug-fix day
$150
1 day
A full day on your backlog: bugs fixed, pushed as reviewed PRs.
Book thisNext.js performance fix
From $299
3–5 days
Lighthouse and Core Web Vitals fixes (LCP, INP, CLS) with before/after numbers.
Book thisLiveKit integration
From $799
1–2 weeks
Real-time audio/video rooms: tokens, roles, moderation, recording and webhooks.
Book this1-week MVP sprint
From $1,500
1 week
One core flow shipped to production in a week on Next.js, ready to show users.
Book this
Payment terms: 50% upfront for quick offers, balance on delivery. Invoiced in USD or INR; pay by bank transfer (SWIFT for USD) or a Razorpay payment link (INR).
Lead offers
Starting prices for a first slice
Catalog prices in USD and INR — from a two-week automation sprint to a full PWA. A human confirms scope; nothing is auto-quoted.
Automation
Take a manual ops process — support, onboarding, or CS — and run it without extra headcount.
Lead
Automation Sprint
$3,500
₹2,90,000
2-week window · Automate one measurable manual process, 24/7.
Automation + Integrations
$6,800
₹5,60,000
4-week window · Automate a process and connect 2–3 tools, CRM or APIs with dashboards.
Start this projectOps Automation Suite
$12,500
₹9,90,000
8-week window · 2–3 processes end-to-end with monitoring and handover.
Start this project
Custom PWA
An installable product for customers or staff — one core flow on the phones they already have.
PWA Quick-build
$5,600
₹4,60,000
4-week window · Installable product shell with one core flow.
Start this projectPWA Full App
$18,500
₹15,00,000
10-week window · Auth, payments, database and core product features.
Start this projectPWA + AI / Blockchain / IoT
$28,000
₹24,00,000
12-week window · Advanced integrations on top of a full PWA.
Start this project
Blockchain in the business
Wire verifiable records, assets, or settlements into the systems you already run. Not a token launch.
Blockchain Pilot
$6,800
₹5,60,000
4-week window · Prove one verifiable workflow against a live business process.
Start this projectBlockchain Integration
$12,500
₹9,90,000
8-week window · Wire verifiable records, assets, or settlements into the systems you already run.
Start this project
Start here
PWA, automation, and blockchain in the business
Three ways to start. We confirm scope with you — nothing is auto-quoted.
Custom PWA
An installable product for customers or staff — one core flow on the phones they already have.
From $5,600₹4,60,000
Start with a Quick-build shell, or a full app with auth and payments. We confirm scope with you before any quote.
Start this projectAutomation
Take a manual ops process — support, onboarding, or CS — and run it without extra headcount.
From $3,500₹2,90,000
A two-week sprint for one process, or a wider ops suite. Discovery names the outcome; a human authors the plan.
Start this projectBlockchain in the business
Wire verifiable records, assets, or settlements into the systems you already run. Not a token launch.
From $6,800₹5,60,000
Prove one live workflow, then integrate. We map the current path before anyone talks numbers.
Start this projectAlso in the stack
⬡
Web platforms
Revenue-grade web systems that stay fast under load and clear under audit.
React / Next.jsNode.jsPostgreSQL
◈
Applied AI
Models and agents tied to a real workflow — not a demo chat window.
LLMsRAGEval gates
⟳
Ops automation
Support, onboarding, and CS processes that run without extra headcount.
n8nAPIsRPA
⬢
Business blockchain
Verifiable records and settlements inside the operation you already run.
LedgersSmart contractsIntegrations
◉
Machine learning
Notebook to production with monitoring, drift detection, and CI.
PyTorchMLOps
◬
IoT systems
Devices, edge, and cloud as one data path for operations teams.
MQTTEdgeFirmware
Global Delivery
Distributed, time-zone agnostic delivery
Security First
Enterprise-grade protocols
Rapid Delivery
Agile, sprint-driven cadence
Deep Research
R&D at the cutting edge
Long Partnerships
We grow with our clients
Data Driven
Metrics that matter
Why Chainweb
Built for Ambition,
Engineered to Last
Chainweb Solutions designs and builds web platforms, AI systems, automation, blockchain rails, ML pipelines, and IoT ecosystems for businesses that need production-grade delivery — and keeps ownership of their code and architecture with them from day one.
- 01
Full-stack technology command
From hardware to cloud, from smart contracts to neural networks, our team spans the entire technology spectrum so you do not have to manage multiple vendors.
- 02
Transparent, milestone-based delivery
You always know where your project stands. Clear milestones, live dashboards, and weekly syncs keep every engagement predictable and low-stress.
- 03
IP-first philosophy
All code, architecture, and proprietary systems belong to you from day one. We build for your ownership, not ours.
- 04
Time-zone agnostic support
We deliver across time zones and align to your working hours, so progress keeps moving without offshore lag.
Open-source proof
Read the code before you hire
- LiveKit toolkitchainweb-livekitRole-based tokens, moderation, S3 recording, webhooks and React helpers.
- IoT traceabilityagritech-IoTMQTT ingestion, rules engine, smart contracts and a PWA dashboard.
- WhatsApp AI CRMverbal-crmCRM for WhatsApp conversations with AI assistance.
- AI on-chain analyticsAi-AnalyticsWallet and token analytics combining AI with chain data.
- Kadena launchpadkadpad-newToken launchpad built on the Kadena blockchain.
- Ethereum walletethereum-wallet-publicWeb wallet for Ethereum accounts and transactions.
- Chat analysis bottg-discord-chat-analysis-bot-publicTelegram and Discord bot that analyses community chats with AI.
Who you work with
Kabir Hossain
Founder, Chainweb Solutions
Kolkata, India · remote worldwide
You talk directly to the engineer who builds your project — Next.js, NestJS, AI, LiveKit and Web3.
How We Work
A process worth starting
Five stages we actually run: name the outcome, map the current path, scope a first slice, build in the open, and hand it over.
02
Map the current path
People, tools, volume, and the manual step that actually costs you.
03
Scope a first slice
A human-authored plan for a slice that can ship — not a vague SOW.
04
Build in the open
Working software in short cycles you can review before the next one starts.
05
Ship and hand over
Production, monitoring, and your team owning the system.
Industries
Verticals We Transform
Deep domain knowledge meets technical excellence across the sectors that define tomorrow's economy.
FinTech & DeFi
Trading platforms, payment rails, digital wallets, and decentralized finance protocols.
Healthcare & MedTech
Patient data systems, diagnostic AI, telemedicine platforms, and medical IoT devices.
E-Commerce & Retail
Headless storefronts, recommendation engines, supply chain automation, and analytics.
Manufacturing & Industry 4.0
Smart factory systems, predictive maintenance, SCADA integrations, and digital twins.
EdTech
Adaptive learning platforms, credentialing on-chain, and AI tutoring systems.
Logistics & Supply Chain
End-to-end tracking, smart contracts for compliance, and route optimization AI.
AgriTech
Precision farming with IoT sensors, crop AI models, and marketplace platforms.
GovTech & Public Sector
Digital governance, secure identity systems, and transparent public blockchain tools.
Chainweb Blog
Practical writing on the stacks we ship
We use the blog to document how we think about product engineering, AI systems, blockchain delivery, automation, and IoT in production settings.
Cloud Engineering3 min read
Token Budgets Belong on the Workflow, Not the Model
Model unit price is the wrong control. Cap tokens on the workflow so retries and bloated context show up before the invoice.
FinOpsLLMsToken BudgetsObservability
Kabir Hossain
21 October 2026
Artificial Intelligence3 min read
Agent Tool Contracts That Survive a Model Swap
Newer models often break tool use. Normalize arguments at the contract layer so a model swap does not rewrite every executor.
LLMsTool CallingAgentsJSON Schema
Kabir Hossain
14 October 2026
Web Engineering3 min read
Next.js Cache Components: What Actually Ships to the Browser
Cache Components are not a blanket cache. If a fragment reads cookies, session, or secrets, it does not belong in a shared cache slot.
Next.jsCache ComponentsApp RouterRSC
Kabir Hossain
7 October 2026
Interlude · Mini-game
Play ChainLink Forge
and route the network.
A bite-sized browser game inspired by the Chainweb logo. Drag glowing chains between the gear and data nodes, lock on the drifting orbs, and chase combos before the network destabilizes.
- Mouse-heavy routingDraw, swap, and pin chains on the fly
- Combo multipliersEvery 5 deliveries the gear spins faster
- Golden orbsRare 5× score pickups reward clean webs
- No installPure browser, Phaser 3, theme-aware
Play NowKeyboard · Space to pause · Right-click a chain to pin it
Live teaser · auto-playPhaser 3 · WebGL
Technologies We Work With
ReactNext.jsNode.jsPythonSolidityRustTypeScriptGo
PyTorchTensorFlowLangChainHuggingFaceOpenCVAWSGCPAzureKubernetes
EthereumPolygonBaseSolanaHardhatMQTTKafkaPostgreSQLMongoDB
Ready to start
a project?
PWA, automation, or blockchain in the business. A human-authored plan within 24 hours — never an auto-quote.
hello@chainweb.in | Kolkata | Global · Remote-first