We architect and deploy custom smart contracts that form the secure backbone of your dApp. Our engineers specialize in Solidity 0.8+, Rust (Solana/Sealevel), and Vyper, implementing battle-tested patterns from OpenZeppelin and Solmate.
LABS
Services
Real-Time Payment Sponsorship API
A developer-first API service that allows any application to programmatically sponsor user transactions in real-time based on customizable triggers and rules.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
Deliver a secure, auditable, and gas-optimized protocol in as little as 4-6 weeks.
- Security-First Development: Every contract undergoes internal audits and formal verification before deployment. We mitigate common vulnerabilities like reentrancy and integer overflow by design.
- Full-Stack Integration: Contracts are delivered with comprehensive test suites, deployment scripts, and frontend SDKs (
ethers.js/web3.js) for seamless integration. - Protocol Specialization: Expertise in
ERC-20,ERC-721,ERC-1155, custom DeFi primitives, DAO governance, and cross-chain bridges.
key-features-cards
BUILT FOR SCALE
Core API Capabilities
Our Real-Time Payment Sponsorship API is engineered for enterprise-grade reliability and developer velocity. Each capability is designed to abstract blockchain complexity while delivering measurable business outcomes.
04
Enterprise-Grade Security & Compliance
Built with institutional security standards. All smart contracts are audited, and the infrastructure runs in a SOC 2 Type II compliant environment with role-based access controls.
- Smart contracts audited by leading security firms
- Non-custodial architecture; you control the keys
- Compliance-ready transaction logging
SOC 2
Compliance
Audited
Smart Contracts
06
Predictable Cost Management
Gain full visibility and control over your sponsorship spend with flexible billing models, usage caps, and automated budget alerts to prevent unexpected costs.
- Set daily/weekly/monthly sponsorship limits
- Pay-as-you-go or committed use discounts
- Detailed cost attribution per feature and user segment
Flexible
Pricing Models
Granular
Cost Controls
benefits
TANGIBLE RESULTS
Business Outcomes You Can Measure
Our Real-Time Payment Sponsorship API delivers quantifiable improvements to your payment infrastructure. Here are the key metrics you can track from day one.
01
Zero-Friction User Onboarding
Eliminate the need for users to hold native tokens for gas fees. We sponsor all transaction costs, removing the primary barrier to entry and increasing conversion rates.
> 40%
Higher Conversion
0 MATIC/ETH
User Gas Cost
02
Predictable Operational Costs
Replace volatile, unpredictable gas fees with a fixed, subscription-based cost model. Gain full visibility and control over your payment infrastructure expenses.
Fixed Fee
Cost Model
Real-Time
Spend Dashboard
03
Sub-Second Transaction Finality
Leverage our optimized relay infrastructure for near-instant transaction submission and confirmation, ensuring a seamless payment experience for your customers.
< 2 sec
Avg. Finality
99.9%
Success Rate SLA
04
Enterprise-Grade Security & Compliance
Built with institutional security standards. Our smart accounts and sponsorship logic are audited, with non-custodial design ensuring user asset safety.
Audited
Smart Contracts
Non-Custodial
User Funds
05
Rapid Integration & Time-to-Market
Go live with a production-ready sponsorship system in weeks, not months. Our comprehensive SDKs and developer tools accelerate integration.
< 3 weeks
To Production
Full SDK
Developer Support
06
Scalable Multi-Chain Support
Deploy your sponsored payment flow across Ethereum, Polygon, Base, and other EVM chains from a single integration, future-proofing your application.
EVM Chains
Supported
Single API
Unified Interface
Real-Time Payment Sponsorship API
Build vs. Buy: The Infrastructure Trade-Off
A detailed comparison of the costs, risks, and time investment required to build a gas sponsorship system in-house versus using Chainscore's managed API.
| Key Factor | Build In-House | Buy with Chainscore |
|---|---|---|
Time to Initial Deployment | 4-6 months | 2-4 weeks |
Initial Development Cost | $150K - $300K+ | From $5K/month |
Smart Contract Security Audit | Required (Adds $30K-$75K) | Included (Pre-audited, upgradeable) |
Ongoing Infrastructure & DevOps | Your team (1-2 FTEs) | Fully managed (Zero ops) |
Multi-Chain Support (EVM) | Per-chain development | Native (Ethereum, Polygon, Arbitrum, Base, etc.) |
Uptime & Reliability SLA | Your responsibility | 99.9% Guaranteed |
Feature Updates & Protocol Changes | Manual tracking & upgrades | Automatic, included |
Total Cost of Ownership (Year 1) | $300K - $600K+ | $60K - $150K |
how-we-deliver
PREDICTABLE, TRANSPARENT, AND FAST
Our Delivery Process: From Integration to Launch
We provide a structured, milestone-driven approach to integrate our Real-Time Payment Sponsorship API, ensuring a seamless transition from proof-of-concept to full-scale production with zero surprises.
01
1. Discovery & Architecture Review
Our solution architects conduct a deep-dive session to analyze your existing stack, transaction flows, and gas fee pain points. We deliver a tailored integration blueprint with specific recommendations for wallet abstraction and sponsorship logic.
2-3 days
Initial Analysis
100%
Custom Blueprint
02
2. Sandbox Integration & Testing
Get immediate access to a dedicated testnet environment with our API. We provide SDKs, documentation, and developer support to prototype your user onboarding flows and validate transaction sponsorship logic in a risk-free setting.
< 1 day
Environment Setup
24/7
Dev Support
03
3. Security Audit & Policy Configuration
Our security team reviews your integration patterns and helps configure granular sponsorship policies (spending limits, user whitelists, contract allowlists). All infrastructure is built with SOC 2 Type II compliant practices.
SOC 2
Compliant
Zero-trust
Policy Engine
04
4. Staging & Load Testing
We deploy your configured API endpoints to a staging environment that mirrors production. We conduct load testing to guarantee performance under peak traffic, ensuring sub-second response times and 99.9% reliability.
99.9%
Uptime SLA
< 500ms
P95 Latency
05
5. Production Go-Live & Monitoring
We manage the seamless cutover to mainnet, providing real-time dashboards for transaction volume, gas expenditure, and user adoption metrics. You get dedicated SRE support for the first 72 hours post-launch.
Zero-downtime
Deployment
Real-time
Analytics
06
6. Ongoing Optimization & Scaling
Post-launch, we provide quarterly business reviews analyzing your gas efficiency and user growth. Our team proactively suggests optimizations for cost savings and supports scaling to new chains like Arbitrum, Optimism, and Base.
10-40%
Typical Gas Savings
Multi-chain
Scalability
Real-Time Payment Sponsorship API
Frequently Asked Questions
Get clear answers on implementation, security, and support for our gasless transaction infrastructure.
Our API is a developer-first service that abstracts away gas fees for your end-users. You, the dApp developer, deposit funds into a smart contract wallet. When a user initiates a transaction, our relay network submits it, pays the gas on your behalf in real-time, and deducts the cost from your balance. This enables true gasless UX without requiring users to hold native tokens.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall