Chainlist
Worth it
Confidence: Medium
Use it . it's a free, open-source directory and the standard way to add EVM networks to MetaMask.
Comparison
Chainlist vs Thirdweb
Chainlist lands on Worth it, and Thirdweb lands on Depends.
Thirdweb
Depends
Confidence: Medium
Buy if you're building an onchain app and want wallets, contracts, RPC, and auth bundled in one platform.
| Compare | Chainlist | Thirdweb |
|---|---|---|
| Verdict | Worth it | Depends |
| Best for | DeFi users adding L2s to MetaMask | Web3 startups shipping token or NFT products |
| Who it's not for | Teams needing SLA-backed RPC infrastructure . use a node provider | Any product without a blockchain component |
| Privacy | No breach of found; one 2026 SSRF CVE exists in third-party Chainlist MCP server packages.⁶ | Three disclosed incidents since 2023 . a library flaw, an MCP advisory, and a bridge exploit . plus an active $50K bug bounty. |
| Support quality | No support channels found in evidence | No support evidence found |
| Public sentiment | Users treat Chainlist as the default free utility for adding EVM networks while repeatedly asking whether it and its lookalikes are safe.² | Reddit threads and reviews skew positive on breadth and beginner-friendliness, but review volume is too small to be conclusive. |
| Biggest gotcha | Lookalike and clone sites phish users . verify the domain | Sep 2025 advisory flagged unauthorized transactions via thirdweb MCP . restrict agent wallet permissions |
Pick Chainlist when
- DeFi users adding L2s to MetaMask
- Multi-chain testers and developers
- Hardware wallet (Ledger) users
- Anyone needing chain IDs and RPC URLs
When Chainlist is not a fit
- Teams needing SLA-backed RPC infrastructure . use a node provider
- Anyone expecting vetted, scam-free chain endorsements
- General non-crypto software buyers . irrelevant outside web3 wallets
- Users unwilling to verify they're on the real chainlist.org
Pick Thirdweb when
- Web3 startups shipping token or NFT products
- Games adding onchain items
- Teams needing embedded in-app wallets
- Builders wiring wallets into AI agents
When Thirdweb is not a fit
- Any product without a blockchain component
- Hobbyists just learning Solidity . use raw libraries
- Risk-averse teams handling custody at scale
- Teams wanting stable, predictable pricing
Sources
- How to Find Chain IDs and Add EVM Networks to Your Walletcryptouniversity.networkreview
- Is Chainlist safe to use? : r/ethereumreddit.comreview
- DefiLlama/chainlist on GitHubgithub.comofficial
- Chainlist . Base RPC and Chain settingschainlist.orgofficial
- Chainlist product security pagechainlist.orgofficial
security
- Chainlist MCP Server . Trust Score & Security Scanmcptrustchecker.comsecurity
- Chainlist (CLIST) price . unrelated tokencoinmarketcap.comnews
- Use Chainlist to connect MetaMask to any EVM network . Ledgersupport.ledger.comofficial
- Shiba Inu Restores Shibarium Wallet Link Through Chainlistfinance.biggo.comnews
- Top 10 Base RPC Providers Comparedblog.drpc.orgreview
- Verification of Networks : r/Metamaskreddit.comreview
- thirdweb.com . Infrastructure for AI Agentsthirdweb.comofficial
- thirdweb Pricingthirdweb.comofficial
- Retiring Legacy Pricing Plans on January 1st, 2026blog.thirdweb.comofficial
- Smart Contract Incident Report: Legacy Bridge Vulnerabilityblog.thirdweb.comsecurity