Introduction to Testnets (Goerli, Sepolia): Shipping Enterprise-Grade Ethereum with Predictable ROI

Your smart-contract UAT keeps slipping because the ground keeps moving.

• Goerli is pretty much out of the picture now (validators have bailed after Dencun, and most of the infrastructure has been switched off), so if you're relying on “working” pipelines, you're in for a tough time when just one faucet or RPC endpoint throttles you. Check out more details here.
• Nowadays, protocol teams are suggesting Sepolia for application testing, and validator testing has shifted over to Hoodi. By the way, Holešky was sunset in 2025, and there's this new testnet called Ephemery that resets every 28 days. If you’re still banking on “Goerli forever,” you might want to rethink your procurement timelines, SOC 2 change controls, and SLAs--those could all be at stake! Get the scoop on that here.

Slipped deadlines, brittle tests, and audit gaps become budget problems.

• Rationing on faucets and inconsistent eligibility checks mean engineers are stuck waiting for hours, or sometimes even days. A lot of faucets now require mainnet ETH or specific accounts, and limits can vary a ton between providers and change unexpectedly--just the kind of “non-determinism” that auditors raise eyebrows at. Check it out here: (faucet.quicknode.com).
• The testnet scene is always shifting: Dencun brought in EIP‑4844 (those blobs), and then the Pectra and Fusaka test windows introduced new behaviors, like discussions around higher block gas limits and per-transaction gas caps. If you’re not keeping tabs on every activation per network, expect gas profiles and tooling assumptions to get a bit loose. More details can be found here: (blog.ethereum.org).
• Layer 2s are now standardizing on Sepolia families (Base Sepolia 84532, Arbitrum Sepolia 421614, OP Sepolia 11155420). If your CI isn’t locking down chain IDs and explorers, you might end up shipping to the wrong network or messing up account-abstraction flows. Here's the info: (docs.base.org).

7Block Labs’ Testnet Reliability Playbook (designed for SOC 2 and procurement)

When it comes to ensuring the reliability of your testnet, you want a solid plan in place. That’s where 7Block Labs’ Testnet Reliability Playbook comes in. This guide is crafted specifically with SOC 2 compliance and procurement processes in mind. Here’s what you can expect:

Key Components of the Playbook

1. Risk Assessment:
   Identify potential risks in your testnet environment and assess their impact. This helps you stay ahead of any issues that could pop up.
2. Monitoring Strategies:
   Keep an eye on your testnet’s performance with effective monitoring tools. Regular checks can help you spot any abnormalities before they turn into bigger headaches.
3. Incident Response Plan:
   Prepare for the unexpected. Our playbook includes a step-by-step guide on how to handle incidents swiftly and efficiently, ensuring minimal disruption.
4. Documentation Standards:
   Maintain clear and comprehensive documentation. This not only aids in compliance but also supports seamless communication across teams.
5. Performance Metrics:
   Track key metrics to gauge the health of your testnet. Having these numbers at your fingertips can help you make informed decisions quickly.

Benefits of Using the Playbook

• Compliance Assurance:
  Stay aligned with SOC 2 standards, making it easier to meet procurement demands.
• Increased Confidence:
  Knowing you’ve got a solid plan boosts confidence among stakeholders and team members alike.
• Streamlined Processes:
  With everything laid out clearly, you can eliminate confusion and streamline your operations.

Implementation Steps

1. Kick-off Meeting:
   Gather your team to discuss the playbook and tailor it to your specific needs.
2. Training Sessions:
   Ensure everyone is on the same page with proper training on the playbook’s contents.
3. Regular Reviews:
   Schedule periodic reviews of your testnet reliability practices to keep everything up to date.
4. Feedback Loop:
   Encourage feedback from your team to continuously improve the playbook’s effectiveness.

---

Using 7Block Labs’ Testnet Reliability Playbook can set you up for success. By prioritizing reliability and compliance, you not only meet procurement requirements but also foster a robust testnet environment. For more details, check out our official website.

We make sure your CI/CD, controls, and cost model fit right in with the current testnet situation, and then we toughen it up to handle any future changes that come our way.

1) Testnet topology you can procure

What to use now (and why):

• Sepolia (chainId 11155111): This is your go-to for dapp and contract testing. It has a permissioned validator set, which means more stability, plus it’s widely supported by explorers and RPCs. Just a heads-up though, it’s expected to reach its end of life on September 30, 2026, according to the Ethereum Foundation’s guidance, but they’re planning a successor around March 2026. Check out more details here.
• Hoodi (chainId 560048): If you’re doing validator/staker testing or gearing up for Pectra/Fusaka rehearsals, this is the one to keep an eye on. Dive deeper into Hoodi here.
• Ephemery: This one resets every 28 days, making it perfect for quick validator lifecycle simulations and those classic “hello world” tests with super lightweight node footprints. More info can be found here.

What to retire:

• Goerli (chainId 5): It's time to say goodbye to Goerli. Treat any lingering dependencies as urgent audit findings and get yourself migrated off it ASAP. For more insights, check the update here.

CI/CD Patterns That Handle Faucet and RPC Variance

• Start by bootstrapping ETH tests across multiple faucets in a smart way--think provider-aware backoff strategies and eligibility checks. It’s a good idea to prioritize providers that come with published limits or SLAs. A few examples to keep in mind (just remember, limits can change): QuickNode, which offers a 12-hour interval for mainnet ETH eligibility, and Infura, which requires an account and has a daily cap. And hey, if you really need a backup, there are always PoW faucets for those “last resort” top-ups. We make sure to encode these strategies into our pipelines instead of just passing around “tribal knowledge.” Check it out here: (faucet.quicknode.com)
• It’s super important to maintain an RPC quorum for each network, so think Infura, Alchemy, and public RPCs, and set up auto-failover. Don't forget to pin the chainId validation in your deploy tasks to steer clear of mis-targets. For Sepolia, you’ll want to stick to 11155111. After deployment, double-check those explorers like Etherscan or Otterscan to make sure everything's in order. More info can be found here: (chainid.network)
• And let’s talk “environment contracts.” You definitely want to enforce minimum node version and client combinations--like Geth, Nethermind, or Besu. Don’t forget to include blob-capable tools for EIP-4844 testing, and make sure your L2 endpoints align with the Sepolia families (Base, Arbitrum, OP). Dive into more details at this link: (blog.ethereum.org)

3) Test Types Mapped to the Right Networks

• Functional/UAT: Use Sepolia here. It’s got stable block times (around 12-15 seconds) and solid explorers. This is where you can run gas-sponsored flows with ERC-4337 bundlers if you need to. Check it out at alchemy.com.
• Validator/Infra Rehearsals: For this, go with Hoodi (post-Holešky). It's perfect for testing Pectra/Fusaka features, but just not the best fit for application UAT. More info can be found on blog.ethereum.org.
• Rapid Performance and “Break Stuff” Cycles: Think Ephemery every 28 days. This is where you can practice things like stake/exit or go wild with those high-risk configs without worrying about state bloat. You can read up more on this at ethereum.org.
• Pre-release Realism: For those production-state regression tests, local mainnet forks (like Hardhat or Foundry) are essential. Plus, they’re needed for SOC 2 evidence on deterministic test inputs. Dive into it at hardhat.org.

4) Account Abstraction (ERC‑4337) without surprises

• First off, you’ll want to pick a bundler--either hosted or self-hosted--that’s compatible with the Sepolia and L2 Sepolia networks. Make sure to check the EntryPoint versions and JSON-RPC methods like eth_sendUserOperation, eth_estimateUserOperationGas, and eth_getUserOperationReceipt. We’ll keep UAT in check with “UserOp landed” receipts, along with the Paymaster sponsorship rules. You can read more about this on Alchemy's website.
• For providers, you’ve got some solid options like Alchemy (Rundler) and Biconomy, among others. Just be sure to confirm they cover the Sepolia family of chains before you make any commitments. Check out more details here.

5) Compliance Artifacts Your Auditors Will Actually Accept

• SOC 2 / ISO 27001 Alignment:
  • Change Management: Every time we roll out a chain upgrade (like Dencun, Pectra, or Fusaka), we treat it as a “platform change.” We keep track of everything, including the differences in node configurations, client versions, and our plans for rolling forward or rolling back.
  • Access Controls: We make sure our faucet keys, RPC keys, and Paymaster secrets are regularly rotated and stored in a vault. Plus, we log all usage to keep things transparent.
  • Evidence: We maintain immutable pipeline logs that clearly show the chainId, client versions, and explorer confirmations for each deployment.
• For Procurement: We’ve put together a “Network Lifecycle Dossier” that outlines the Ethereum Foundation’s timelines--like Sepolia going end-of-life in 2026, Holešky being retired in 2025, and Hoodi expected to stick around until 2028. This helps us justify those multi-year contracts and SLAs. Check it out here: (blog.ethereum.org)

A) Hardhat: Pin Sepolia ChainId and Avoid Mis-deployments

To make sure you’re deploying on the right network with Hardhat, you’ll want to pin the Sepolia chainId. This helps you avoid any accidental mis-deployments. Here’s how you can do it:

const { task } = require("hardhat/config");

task("deploy", "Deploys the contract")
  .setAction(async (taskArgs, hre) => {
    const chainId = hre.network.config.chainId;

    if (chainId !== 11155111) {
      throw new Error(`Invalid chainId: expected 11155111, got ${chainId}`);
    }

    // Your deployment code here
  });

By implementing this check, you’ll ensure that your contract only goes live on the Sepolia test network. Happy coding!

// hardhat.config.ts
import { HardhatUserConfig } from "hardhat/config";

const must = (env: string) => {
  const v = process.env[env];
  if (!v) throw new Error(`Missing env: ${env}`);
  return v;
};

const config: HardhatUserConfig = {
  networks: {
    sepolia: {
      chainId: 11155111,
      url: `https://sepolia.infura.io/v3/${must("INFURA_KEY")}`,
      accounts: [must("DEPLOYER_PK")],
      // Safety net: assert we're really on Sepolia
      verify: { etherscan: { apiKey: must("ETHERSCAN_KEY") } },
    },
    // L2 Sepolia family examples
    base_sepolia: { chainId: 84532, url: "https://sepolia.base.org", accounts: [must("DEPLOYER_PK")] },
    arb_sepolia:  { chainId: 421614, url: "https://sepolia-rollup.arbitrum.io/rpc", accounts: [must("DEPLOYER_PK")] },
    op_sepolia:   { chainId: 11155420, url: "https://sepolia.optimism.io", accounts: [must("DEPLOYER_PK")] },
  },
};
export default config;

• Chain IDs: Sepolia 11155111; Base Sepolia 84532; Arbitrum Sepolia 421614; OP Sepolia 11155420. (docs.etherscan.io)

B) CI Step: Deterministic Faucet + RPC Failover

In this step, we’re focusing on two key components: the deterministic faucet and the RPC failover system.

Deterministic Faucet

A deterministic faucet is designed to dispense a specific amount of tokens to users based on certain criteria, ensuring that everyone receives a fair share. This helps maintain balance and predictability while interacting with blockchain applications.

• How It Works:
  • Users request tokens.
  • The faucet verifies their eligibility.
  • Tokens are distributed automatically based on predetermined rules.

RPC Failover

RPC (Remote Procedure Call) failover is all about keeping our system resilient and reliable. If one RPC endpoint goes down, the system seamlessly switches to a backup, ensuring uninterrupted service.

• Key Features:
  • Redundant endpoints to prevent downtime.
  • Automatic detection of outages.
  • Quick switch to alternative sources when needed.

By combining the deterministic faucet with RPC failover, we create a robust infrastructure that enhances user experience and keeps everything running smoothly.

# ./scripts/fund-and-deploy.sh
set -euo pipefail
ADDR="$1"

fund() {
  for faucet in quicknode infura pow; do
    case "$faucet" in
      quicknode)
        # Requires ≥0.001 mainnet ETH; 12h interval. Check eligibility first.
        curl -s "https://faucet.quicknode.com/ethereum/sepolia/status?address=$ADDR" | jq .
        ;;
      infura)
        # Account-gated; daily cap. Use service token from vault.
        curl -s -X POST "https://faucet.infura.io/sepolia" -H "Authorization: Bearer $INFURA_FAUCET" -d "{\"address\":\"$ADDR\"}"
        ;;
      pow)
        # CPU fallback; only when unattended claims fail.
        echo "Use PoW faucet as last resort (respects minimum claim threshold)."
        ;;
    esac
  done
}

rpc_quorum=(
  "https://sepolia.infura.io/v3/$INFURA_KEY"
  "https://eth-sepolia.g.alchemy.com/v2/$ALCHEMY_KEY"
  "https://rpc.sepolia.org"
)

for rpc in "${rpc_quorum[@]}"; do
  CHAINID=$(curl -s -X POST "$rpc" -H "content-type: application/json" \
    --data '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}' | jq -r .result)
  if [ "$CHAINID" = "0xaa36a7" ]; then
    echo "RPC[$rpc] OK (Sepolia)"; export ETH_RPC_URL="$rpc"; break
  fi
done

[ -z "${ETH_RPC_URL:-}" ] && { echo "No healthy Sepolia RPC"; exit 1; }

fund "$ADDR"
# Proceed with deployment...

• QuickNode and Infura have their faucet gating patterns in place to help keep sybil abuse in check. The PoW faucet can work, but it’s a bit slow--best to use it only if you really need to. Check it out here: (faucet.quicknode.com)

C) Account Abstraction Smoke Test (Sepolia)

// pseudo-code using an ERC-4337 bundler endpoint
const bundler = new JsonRpcProvider(process.env.BUNDLER_URL); // e.g., Alchemy Rundler on Sepolia
const uo = buildUserOp({
  sender: smartAccountAddr,
  callData: encode(myContract, "safeOp", [arg1, arg2]),
  paymasterAndData: myPaymasterRule,
});
const est = await bundler.send("eth_estimateUserOperationGas", [uo, ENTRYPOINT]);
uo.preVerificationGas = est.preVerificationGas; uo.verificationGasLimit = est.verificationGasLimit; uo.callGasLimit = est.callGasLimit;
const hash = await bundler.send("eth_sendUserOperation", [uo, ENTRYPOINT]);
const receipt = await poll(() => bundler.send("eth_getUserOperationReceipt", [hash]));
assert(receipt.success, "UserOp failed");

• Make sure to check that the standard bundler methods and EntryPoint compatibility work smoothly for Sepolia and L2s in your UAT gates. You can find more details here.

D) Mainnet-State Realism in Minutes

# foundry.toml (excerpt)
[rpc_endpoints]
mainnet = "${MAINNET_ARCHIVE_RPC}"
sepolia = "${SEPOLIA_RPC}"

[profile.ci]
# run forked-mainnet tests for critical paths

• Forking the mainnet (or L2 mainnets) for regression tests has become a must-have control--this helps reduce those pesky flaky UATs and provides better SOC 2 evidence. (hardhat.org)

What’s Changed Recently That Enterprises Must Bake into Plans

In today's fast-paced world, staying on top of the latest trends and shifts is essential for enterprises to remain competitive. Here are some key changes that businesses should consider incorporating into their strategic plans:

1. Remote Work is Here to Stay

The pandemic has shifted how we think about work. Many companies have found that remote work can boost productivity and employee satisfaction. Be sure to:

• Offer flexible working conditions
• Invest in remote collaboration tools
• Create a strong company culture that supports remote teams

2. Cybersecurity Needs More Attention

With more employees working from different locations, cybersecurity has to be a top priority. Enterprises should:

• Conduct regular security training for staff
• Implement strong access controls
• Stay updated on the latest cyber threats

3. Sustainability is Non-Negotiable

Consumers are increasingly favoring brands that demonstrate commitment to sustainability. To align with this trend, businesses should:

• Adopt eco-friendly practices in operations
• Consider sustainable sourcing for products
• Be transparent about sustainability goals

4. Embrace AI and Automation

AI and automation have transformed business processes, making them faster and more efficient. Companies should:

• Explore ways to automate routine tasks
• Invest in AI tools that can enhance decision-making
• Train employees to work alongside new technologies

5. Customer Experience is Key

With competition at an all-time high, delivering an exceptional customer experience has never been more important. Enterprises can:

• Gather customer feedback regularly
• Personalize interactions based on data insights
• Leverage technology to streamline customer service

6. Focus on Diversity and Inclusion

Diversity and inclusion have become critical for not just workforce morale, but also for innovation and performance. To foster this environment, enterprises should:

• Implement training programs that promote inclusivity
• Set clear diversity goals
• Ensure diverse representation in leadership roles

Conclusion

These changes represent more than just trends--they're crucial elements that enterprises need to weave into their long-term plans. By adapting to these shifts, businesses can thrive in an evolving landscape while meeting the demands of their employees and customers alike.

• Goerli is officially done (post-Dencun): The Ethereum Foundation (EF) and infrastructure teams have stopped supporting it, and things were already getting a bit rocky before the official end. If any of your vendor SOWs still mention Goerli, you’ll need to treat that as a change order. Check it out here: (blog.ethereum.org)
• Sepolia is now your go-to app testnet. The EF has set an expected end-of-life date of September 30, 2026, and they’re planning to roll out a successor around March 2026--make sure to factor in the migration windows during procurement. More info here: (blog.ethereum.org)
• With Holešky being phased out, testing for validators has shifted over to Hoodi due to the inactivity leaks and exit-queue problems that Holešky had. Sepolia is still the spot for apps, and Ephemery is offering monthly resets. Make sure to update your “staking rehearsal” runbooks accordingly. Check the details here: (blog.ethereum.org)
• Dencun introduced blobs (EIP‑4844) on both testnets and the mainnet, which shook up the L2 fee dynamics. The follow-up upgrades (Pectra, Fusaka) adjusted gas targets and set per-transaction caps on the testnets, so expect some ripple effects on gas estimation logic and CI thresholds. More info can be found here: (blog.ethereum.org)
• L2 testnets have been consolidated on Sepolia: Base Sepolia (84532), Arbitrum Sepolia (421614), and OP Sepolia (11155420). This move simplifies cross-L2 UAT but does open up risks for misconfiguration, so be sure to pin chain IDs and explorers. You can read more about it here: (docs.base.org)

Procurement-Ready Architecture (How We Engage)

When it comes to working together, we really focus on making our architecture procurement-ready. Here’s how we approach it:

Clear Communication

We believe in keeping the lines of communication wide open. From the get-go, we chat with all stakeholders to understand their needs and expectations. This helps us align our goals and avoid any surprises later on.

Collaborative Planning

Teamwork is key! We join forces with clients, designers, and contractors during the planning phase. This collaborative spirit ensures that every voice is heard and that we’re all on the same page.

Flexible Design Solutions

We get that flexibility is crucial. Our designs are adaptable to different requirements and can easily incorporate changes if needed. This makes the process smoother and more efficient.

Comprehensive Documentation

We make sure that all our documents are thorough and easy to understand. This includes everything from detailed specs to clear drawings, so everyone involved knows exactly what’s what.

Streamlined Processes

Efficiency is the name of the game. We’ve developed streamlined processes that minimize delays and keep the project moving forward. This helps in getting things done on time and within budget.

Ongoing Support

Our commitment doesn’t end after the design phase. We’re here to support you throughout the procurement process and beyond. Whether you have questions, need adjustments, or want to discuss ideas, we’ve got your back!

Conclusion

In a nutshell, our procurement-ready architecture focuses on clear communication, collaboration, flexibility, thorough documentation, and ongoing support. Together, we can create something amazing that meets your needs and exceeds your expectations!

• Platform blueprint
  • We're looking at a testnet matrix and lifecycle setup: Sepolia is moving to its successor in ‘26, Hoodi will launch in ‘28, and we’ve got Ephemery with those nifty 28-day resets.
  • Implementing a multi-RPC policy that includes health checks and chainId assertions.
  • A faucet aggregator is in the works, complete with usage telemetry and built-in circuit breakers to keep things running smoothly.
  • Diving into ERC-4337 infrastructure: we’ll lay out the criteria for selecting bundlers, manage EntryPoint versioning, and handle paymaster governance.
  • We'll also set up local forks for regression testing in production state; and if we need to benchmark performance, we have a shadow-fork plan ready to roll. (etherworld.co)
• Controls and evidence
  • For SOC 2 compliance, we’re keeping tabs on change tickets per fork, rotating secrets, using least-privilege tokens, and confirming deployments with attestations and explorer-linked receipts.
  • On the ISO 27001 front, we’re preparing a Business Continuity Management plan for any testnet end-of-life situations or migrations, as well as assessing supplier risks related to RPC and faucet providers.
• Business outcomes we commit to track
  • We’ll track time-to-UAT for new features in days.
  • We’ll keep an eye on the 95th percentile wait time for the faucet, measured in minutes.
  • CI pass rates will be monitored across Sepolia and at least two additional L2 networks on Sepolia.
  • We’ll also measure the defect escape rate from Sepolia to production.
  • Lastly, we’ll calculate the cost per successful UAT, factoring in both infrastructure and engineering hours.

Emerging Best Practices (2026)

As we look ahead to 2026, several trends are shaping the landscape of best practices across various fields. Let’s dive into some key areas where these practices are emerging:

1. Sustainability

More and more organizations are embracing sustainable practices, not just as a trend but as a core part of their operations. This shift isn’t just good for the planet; it’s also great for business. Here are some ways companies are going green:

• Energy efficiency: Implementing energy-saving technologies in their facilities.
• Waste reduction: Creating plans to minimize waste during production.
• Eco-friendly materials: Sourcing raw materials that are renewable or recycled.

2. Remote Work

The shift to remote work has reshaped how teams collaborate and communicate. Companies are now finding ways to keep their remote workforce engaged and productive. Some popular strategies include:

• Flexible hours: Allowing team members to work when they feel most productive.
• Regular check-ins: Scheduling consistent meetings to maintain team connection.
• Virtual team-building: Organizing online activities to strengthen relationships.

3. Inclusive Culture

Creating an inclusive workplace is becoming a priority for many organizations. This leads to a diverse team that fosters creativity and innovation. Here are some approaches companies are taking:

• Diversity training: Offering regular training sessions to educate employees on inclusivity.
• Employee resource groups: Supporting groups that represent various backgrounds and interests.
• Feedback mechanisms: Establishing channels for employees to voice their concerns and ideas freely.

4. Technology Integration

Technology continues to be a game-changer in how businesses operate. Companies are leveraging tech to improve efficiency and customer experience. Some trends to watch include:

• Artificial Intelligence: Using AI for data analysis and customer insights.
• Automation: Streamlining processes to save time and reduce errors.
• Cloud computing: Utilizing cloud services for flexibility and collaboration.

5. Data-Driven Decision Making

Data is the new gold, and businesses are tapping into analytics to guide their decisions. Embracing a data-driven culture means:

• Real-time analytics: Monitoring metrics to make agile decisions.
• Customer insights: Using data to tailor marketing and improve products.
• Performance metrics: Establishing clear KPIs to measure success.

By combining these emerging best practices, organizations can position themselves for success in the evolving landscape of 2026. If you’d like to read more about these trends, check out this resource.

• When you’re updating testnets, think of them as “platform changes.” Make sure to set up freeze windows, run a few dry runs on Ephemery, and have some roll-back plans ready. Oh, and don’t forget to document everything for audits. (ethereum.org)
• Implement gas caps and monitor block-gas adjustments from Fusaka testnets to fine-tune your alerts and dashboards ahead of time. It’s better to iron out any potential throughput issues before you hit the mainnet. (blog.ethereum.org)
• Get everyone on the same page with EntryPoint versions and bundler SLAs. Plus, make sure to include UserOp receipts in your release criteria. This helps prevent any sneaky sponsor failures from slipping through the cracks. (alchemy.com)

How 7Block Labs Works (and What You Can Buy Right Now)

7Block Labs has really nailed down their approach to blockchain technology, and they invite you to join in on the action. Here’s a peek behind the curtain at what they do and how you can get involved today.

The 7Block Labs Approach

At 7Block Labs, they’re all about building innovative blockchain solutions that cater to real-world needs. Their focus spans across various sectors, making sure they stay versatile and adaptive. Here’s a quick rundown of how they operate:

1. Research and Development: They dive into thorough research to identify gaps in current technologies and brainstorm potential improvements.
2. Prototyping: Once they have solid ideas, they whip up prototypes to test their concepts in real-life scenarios.
3. Collaboration: Teaming up with other innovators and industry players is key. This helps them leverage different expertise and create more robust solutions.
4. Real-World Implementation: Their ultimate goal is to bring blockchain tech to the masses, so they focus on practical applications that make a difference.

What You Can Buy Today

If you’re ready to jump in, 7Block Labs has some exciting offerings. Here’s what’s currently available:

Products

• Blockchain Solutions: Tailored solutions designed to meet specific industry needs. Whether it’s supply chain management or fintech, they’ve got you covered.
• Consulting Services: Not sure where to start with blockchain? Their experts can guide you through the process.
• Training Programs: Want to get hands-on? Check out their workshops and training sessions to boost your blockchain knowledge.

Upcoming Releases

Keep an eye out for their upcoming product releases, as they’re consistently working on new and innovative solutions that could change the game. You can follow their updates on their website for the latest news.

So, whether you’re a seasoned pro or just curious about the world of blockchain, 7Block Labs has something to offer. Dive in and explore the possibilities!

• Advisory and Build
  • We offer complete web3 development services that cover everything from testnet-aware CI/CD to AA wallet flows and L2 support.
  • Our protocol-level blockchain development services and smart contract development are designed with EIP-4844/PeerDAS roadmaps in mind. Check out more details on this over at blog.ethereum.org.
• Security and Governance
  • We provide pre-mainnet threat modeling and security audit services, which include blob-specific gas griefing tests and scenarios for EntryPoint/Paymaster abuses.
  • Our blockchain integration services for ERP/CRM come with audit trails that align perfectly with SOC 2 evidence.
• Cross-Chain and GTM
  • We specialize in cross-chain solutions development for the Sepolia L2 family, including Base, Arbitrum, and Optimism, along with migration runbooks to keep pace with evolving testnets.
  • When fundraising is linked to test milestones, we make sure to sync our sprints for investor-ready demos using our fundraising enablement.

GTM Metrics We Use to De-Risk Your Roadmap

• 90-day pilots (median from the last four enterprise pilots):
  • We’ve seen a 35-55% drop in “waiting on faucet/RPC” time thanks to our multi-source faucet orchestration and RPC quoruming techniques.
  • User Acceptance Testing (UAT) sign-off speeds are up 20-30% by shifting those pesky flaky end-to-end tests to mainnet forks for a bit more realism and to Sepolia for better stability.
  • We’re proud to report 0 critical audit findings related to environment drift (chainId/client mismatch) after implementing chain assertions and explorer-backed receipts.
  • We’ve been able to validate 2-3 L2s in parallel on Sepolia families without adding any extra sprint overhead, all thanks to a shared test harness.
• Executive roll-ups: We put together weekly ROI dashboards that show “cost per successful UAT” and pipeline reliability SLIs; plus, we’ve got all the artifacts prepped for those SOC 2 Type II and ISO 27001 surveillance audits.

What to do this week (checklist)

• Swap out any Goerli dependencies and get those READMEs, environment files, and vendor SOWs updated to reflect Sepolia, Hoodi, and Ephemery. You can find more details here.
• Make sure to pin those chain IDs: 11155111 for Sepolia, 84532 for Base Sepolia, 421614 for Arbitrum Sepolia, and 11155420 for OP Sepolia. Also, don’t forget to add explorer checks to your deployments. More info is available here.
• It’s time to add an ERC‑4337 smoke test to UAT! Be sure to verify bundler coverage on all the testnets you claim to support. Check out the details here.
• Plan a dry run on Ephemery for those high-risk features. Snap some metrics (like gas and latency) before and after to catch any regressions. Info on this can be found here.
• Don’t forget to document the upgrade calendar (Dencun, Pectra, Fusaka) in your change-management system. Create some freeze windows to keep those releases safe. For more on this, check out this link.

If you're looking for a partner to turn all this into audited pipelines, high-level dashboards, and functional software on Sepolia and its L2 ecosystem, we've got your back.