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Chainlist
Chainlist organizes blockchain network details and RPC endpoints, with repository instructions for submitting new chain records.
About Chainlist
Chainlist is a GitHub repository maintained under the DefiLlama organization. It organizes blockchain network details and RPC endpoints, and its website is listed as chainlist.org. The repository also documents how to submit new chain records and additional RPC endpoints.
Chain records are added by submitting a pull request that creates a file in the constants/additionalChainRegistry folder. Each record includes fields such as the network name, chain ID, native currency, RPC URLs, and block explorers. RPC endpoints for chains that are already listed are added by a pull request that modifies constants/extraRpcs.js. The repository also points to a public API at chainlist.org/rpcs.json that returns chain data together with each chain's RPCs. The project is open source under the GPL-3.0 license.
Key features
- Public JSON endpoint returning chain data with associated RPC endpoints
- Chain records include native currency, RPC URLs, and block explorer fields
- Pull request process for adding a new chain record
- Pull request process for adding an RPC to an already listed chain
- Open source code released under the GPL-3.0 license
Best for: Developers and blockchain contributors who need a reference of network details and RPC endpoints, or who want to add a chain or RPC to the list.
Good for
- Open source under the GPL-3.0 license
- Chain and RPC data is available through a public JSON endpoint
- Contribution steps for new chains and RPCs are written out in the repository
Watch out for
- Chains and RPCs are added through pull requests rather than a direct submission form
Chainlist at a glance
- Category
- Crypto & Blockchain › Block Explorers
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Chainlist alternatives
Tools and sites you could use instead, ranked by how closely they match.
Bitasset Chain explorer lets users search blockchain records through an open source Blockscout interface.
CO2e Explorer provides blockchain record lookup for the CO2e Chain through a Blockscout interface.
The IDChain Blockscout explorer displays blockchain records and network statistics for IDChain Mainnet.
LaChain Explorer lets users search blockchain records and transactions on the LaChain network.
Unichain Mainnet Explorer provides blockchain records and network information through its explorer interface.
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Chainlist FAQ
How do I add a new chain to Chainlist?
Submit a pull request that adds a new file to the constants/additionalChainRegistry folder. The file should be named chainid-{chainid_number}.js and follow the structure shown in the repository instructions.
How do I add an RPC to a chain that is already listed?
Submit a pull request that modifies constants/extraRpcs.js to add your RPC to the given chains.
Is there a way to get the chain and RPC data programmatically?
The repository lists an API at https://chainlist.org/rpcs.json that returns all chain data on the website, including the RPCs for each chain.
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