Best Stable Blockchain RPC Providers 2025: Complete Infrastructure Guide for the Stablechain

Stable is the world's first "Stablechain," a Layer 1 blockchain using USDT as its native gas token, delivering gas-free peer-to-peer transfers at 10,000+ TPS. With $28 million in backing from Bitfinex, Hack VC, and PayPal Ventures, Stable's mainnet launch brings unique RPC infrastructure requirements. Your provider choice determines whether your stablecoin application can leverage protocol-level gas-free transfers while managing costs at Stable's transaction volumes.

What is Stable Blockchain?

Stable represents a fundamental shift in blockchain economics. It is the first Layer 1 designed specifically for stablecoin payments with native USDT gas fees and protocol-level zero-fee P2P transfers.

Technical Architecture

Stable combines proven consensus mechanisms with a novel stablecoin-first design. Built on StableBFT (CometBFT/Tendermint-based Proof of Stake), the network targets 10,000+ TPS with a theoretical scale to over 200,000 TPS. It features sub-second finality with ~0.73 second block times and full EVM compatibility supporting Solidity, Hardhat, and ethers.js. Uniquely, Stable uses gUSDT (wrapped USDT0, 18 decimals) as its gas token.

Key Performance Metrics

Why This Matters for RPC Selection

Stable's stablecoin-native architecture creates unique infrastructure demands. Gas estimation returns USDT-denominated values instead of ETH equivalents, and protocol-level zero-fee P2P transfers require special transaction fee handling. At 10,000+ TPS throughput, request volumes can easily reach 50-500 million monthly for moderately active applications. Pricing model differences that seem negligible on Ethereum become major cost drivers on Stable.

Critical requirements for infrastructure include USDT-aware gas estimation, pricing that scales sustainably with high volumes, and WebSocket stability for sub-second block subscriptions. Furthermore, robust archive node support is essential as Stable's high TPS generates massive state growth, and developers need clear pricing on trace/debug methods for transaction analysis.

Understanding RPC Pricing Models

Before evaluating specific providers, understanding pricing models prevents budget surprises at Stable's transaction volumes.

The Compute Unit Complexity Problem

Many providers use compute unit (CU) pricing where each API method has variable cost multipliers:

The Hidden Cost at Scale

For a DeFi aggregator making 100M monthly requests (30% archive, 10% trace methods), a 1:1 pricing model would cost a predictable $200 ($2/million). In contrast, a compute unit model could cost between $1,200 and $2,000 due to the multipliers on archive (often 25x) and trace calls (often 150x).

At Stable's 10,000 TPS throughput, these differences compound dramatically. A trading bot making 1,000 requests per second accumulates 2.6 billion monthly requests. Pricing model choice determines whether you pay ~$5,200 or upwards of $35,000.

The Case for Transparent Pricing

Providers using true request-based pricing—where 1 RPC response equals 1 credit regardless of the method—deliver predictable costs at any scale. This model eliminates archive surcharges and trace/debug premiums, ensuring that historical data access and complex debugging cost the same as simple queries. For production applications on high-throughput chains like Stable, transparent pricing allows for linear scaling and simple revenue forecasting without the cost unpredictability that compute unit models introduce.

Network Status and Provider Landscape

As of November 2025, the Stable mainnet has recently launched following a public testnet phase. The ecosystem has secured over $2.6 billion in pre-deposits, with an expected Day 1 TVL exceeding $1 billion. The RPC provider landscape is evolving rapidly; most providers currently offer testnet support, with mainnet infrastructure coming online as the ecosystem matures.

Top Stable RPC Providers

Comparison Matrix

Important: Stable is a newly launched network. Provider support is evolving rapidly. Verify current support status directly with providers before production deployment. We will continuously update this article as more providers announce support for the network.

1. Dwellir - Transparent Pricing for Stablecoin Infrastructure

Best suited for production applications requiring predictable costs, Dwellir provides mainnet Stable RPC infrastructure starting at $49/month. Their transparent 1:1 pricing model (1 response = 1 credit) eliminates method multipliers, making it especially valuable for Stable's high throughput where archive queries and trace methods with compute unit-based competitors can cost 20-50x standard rates. Testnet access is available on request.

Key Strengths

Dwellir provides true 1:1 pricing where every method costs the same, eliminating archive surcharges and trace method premiums. The platform supports over 150 blockchain networks with unified authentication and relies on globally distributed bare-metal infrastructure backed by a 99.99% uptime SLA. With continuous expansion of node locations and native USDT gas handling, Dwellir is optimized for Stable's high-performance architecture.

Pricing

Cost Efficiency Example

For a stablecoin payment application making 100M monthly requests (30% archive, 10% trace methods):

• Dwellir: $200 (100M × $2/million, no multipliers)
• Alchemy: $1,170+ (26 CU average × $0.45/M CU, archive 25x multiplier)
• Savings: 83% lower operational cost

Stable-Specific Advantages

Dwellir natively handles USDT-denominated gas estimation and protocol-level zero-fee P2P transfers. The infrastructure supports sub-second block time WebSocket subscriptions, with testnet nodes available to be deployed on request for pre-production testing.

Getting Started

Visit the Stable network page to learn more, or register for an account to deploy your endpoint.

2. Alchemy - Comprehensive Developer Platform

Ideal for teams needing full-stack Web3 tooling alongside RPC access, Alchemy offers a compute unit pricing model ranging from free to custom tiers. While support for the Stable testnet is available now, mainnet infrastructure is currently limited to enterprise customers upon request. Their platform includes extensive developer tools, though the compute unit model (10-500 CU per method) can become costly at scale. View Alchemy Pricing

Key Capabilities

Alchemy offers a comprehensive developer platform for the Stable testnet, featuring full JSON-RPC API support alongside enhanced APIs for NFTs, tokens, and transactions. Developers benefit from real-time webhook notifications, transaction simulation tools, and a detailed dashboard for monitoring and debugging.

Pricing

Limitations

Complex compute unit calculations can obscure true costs, with archive multipliers dramatically increasing expenses for analytics. The free tier may deplete quickly given Stable's high request volumes, and mainnet support is currently pending network maturity.

3. Tatum - Unified Blockchain API

Best for applications needing high-level APIs beyond raw RPC, Tatum offers request-based pricing ranging from free to $99/month. It provides a unified API approach for common blockchain operations across 100+ networks. View Tatum Pricing

Typical Capabilities

When networks are supported, Tatum offers RPC access combined with high-level APIs, real-time notifications, and multi-chain unification tools for NFTs and tokens.

Pricing

4. Stable Native Public Endpoints - For Development Only

Best for initial development and testing, Stable provides free public testnet RPC endpoints. These endpoints are rate-limited and intended for non-production use, with no mainnet availability currently offered through this public channel.

Public Endpoints (Testnet Only):

• HTTP RPC: https://rpc.testnet.stable.xyz
• WebSocket: wss://rpc.testnet.stable.xyz

Limitations

These endpoints are rate-limited and best-effort, with no SLA or guarantees on availability. They are shared infrastructure with unpredictable latency, making them unsuitable for production applications.

Additional Blockchain Services

While RPC providers handle transaction broadcasting and state interaction, other tools are essential for a complete development workflow.

StableScan (Block Explorer)

StableScan serves as the block explorer for the network, similar to Etherscan. It is essential for analytics, historical data lookup, contract verification, and tracking gas prices. However, it does not replace an RPC provider; it cannot broadcast transactions, execute state queries like eth_call on the current block, or provide real-time WebSocket subscriptions for dApp interactions.

Etherscan API (Multi-Chain Data)

Etherscan supports Stable through its V2 API endpoints, offering developers a familiar interface for querying blockchain data. This service allows you to programmatically access transaction history, token balances, and smart contract data using the same API patterns used on Ethereum, streamlining multi-chain development.

Ormi Labs (Data Indexing)

Ormi Labs provides a subgraph and data indexing platform comparable to The Graph. It offers read-only indexing layers that listen to smart contract events and expose GraphQL APIs for fast, complex data queries. While ideal for historical analytics, it does not support transaction sending or live state queries, making it a complementary tool to be used alongside a true RPC provider.

Pricing Comparison

Pricing Impact Analysis

The table below illustrates the cost difference across various usage scenarios, highlighting how Dwellir's flat-rate pricing compares to compute unit models (like Alchemy's) and credit-based models (like Tatum's) on high-throughput chains.

Note: "Moderate Usage" assumes 50M requests/month with 80% standard, 15% archive, and 5% trace calls. "Analytics Usage" assumes 100M requests/month with 40% archive and 20% trace calls. Alchemy costs include estimated compute unit multipliers. Tatum costs based on PAYGO rate ($25/4M credits).

* Tatum trace costs assume 1 credit/call, but actual costs may be higher for complex queries.

Real-World Impact: A block explorer analyzing 10M transactions monthly pays $20 with Dwellir versus $675 with Alchemy or $62.50+ with Tatum (depending on method complexity).

How to Choose the Right Provider

Matching Infrastructure to Your Needs

For stablecoin payment applications, Dwellir offers transparent pricing that ensures costs scale linearly with volume. DeFi protocols benefit from Dwellir's 99.99% uptime SLA and robust WebSocket support for sub-second block subscriptions, while analytics platforms can realize up to 97% savings on trace-heavy workloads compared to compute unit providers. Early-stage projects should start with the Stable native testnet for free development before migrating to Dwellir's Developer plan ($49/mo) for production-grade performance.

Key Takeaways

• Mainnet Status: Stable mainnet is live, and provider support is evolving. Verify status before deployment.
• Pricing Models Matter: At 10,000+ TPS, compute unit multipliers can increase costs 5-10x compared to transparent 1:1 pricing.
• Archive/Trace Premium: Compute unit providers often charge 25-150x more for debug and archive methods. Dwellir eliminates these premiums.
• USDT-Native Infrastructure: Ensure your provider properly handles USDT-denominated gas estimation.
• Cost Transparency: Transparent pricing prevents budget surprises for high-volume applications.

Get Started with Stable Infrastructure

Ready to Build on Stable?

Stable's stablecoin-native architecture enables payment applications that were not economically viable on other chains. For initial development, we recommend starting with the free, rate-limited Stable native testnet. As you move to pre-production testing, request Dwellir testnet access to validate your application in a production-like environment. Finally, for your production launch, deploying on Dwellir mainnet ensures predictable costs and reliability backed by a 99.99% uptime SLA.

Why Dwellir for Stablecoin Infrastructure?

Stable's high throughput and USDT-native design demand infrastructure pricing that scales sustainably. Dwellir's transparent 1:1 model ensures predictable costs without archive multipliers, while supporting USDT-native gas handling and global performance with a 99.99% uptime SLA.

For teams building stablecoin payment applications, you can view supported networks or calculate your costs to see the efficiency firsthand. When you are ready to launch, simply register for an endpoint or contact us to discuss specific infrastructure needs.

Additional Resources

• Stable Documentation: docs.stable.xyz
• Stable Testnet Explorer: testnet.stablescan.xyz
• Stable Official Site: www.stable.xyz

Disclaimer: This content is for informational purposes only and does not constitute financial or investment advice. Stable is a newly launched network. Provider support status, pricing, and features are subject to change. Always verify current support and pricing directly with providers before production deployment. Conduct your own research when selecting infrastructure providers.

Last updated: November 26, 2025