Base

Base Mainnet JSON-RPC

Standard Ethereum JSON-RPC endpoint for Base Mainnet (chain ID 8453). Supports eth_*, net_*, web3_*, and Optimism-specific extensions for fee estimation and L1 messaging. The public endpoint is rate-limited and not recommended for production; teams typically front it with Alchemy, QuickNode, Infura, Coinbase Developer Platform, or self-hosted op-geth + op-node.

GitHub

Documentation

📖
Documentation
https://docs.base.org/chain/network-information

Other Resources

🔗
GraphQL
https://raw.githubusercontent.com/api-evangelist/base-l2/refs/heads/main/graphql/base-l2-graphql.md
🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/base-l2/refs/heads/main/apis.yml

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/mainnet-rpc"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

API entry from apis.yml

apis.yml Raw ↑ 
aid: base-l2:mainnet-rpc
name: Base Mainnet JSON-RPC
description: Standard Ethereum JSON-RPC endpoint for Base Mainnet (chain ID 8453). Supports eth_*, net_*,
  web3_*, and Optimism-specific extensions for fee estimation and L1 messaging. The public endpoint is
  rate-limited and not recommended for production; teams typically front it with Alchemy, QuickNode, Infura,
  Coinbase Developer Platform, or self-hosted op-geth + op-node.
humanURL: https://docs.base.org/chain/network-information
baseURL: https://mainnet.base.org
tags:
- JSON-RPC
- Mainnet
- EVM
properties:
- type: Documentation
  url: https://docs.base.org/chain/network-information
- url: graphql/base-l2-graphql.md
  type: GraphQL