ZeroDev Bundler & Paymaster RPC
JSON-RPC 2.0 over HTTPS. All calls are an HTTP POST of a {jsonrpc,id,method,params} envelope to a single project-scoped URL: https://rpc.zerodev.app/api/v3/{projectId}/chain/{chainId}. Authentication is by projectId embedded in the URL path. The same endpoint serves both bundler and paymaster methods; append ?provider=ULTRA_RELAY to route through UltraRelay.
Overview
ZeroDev Bundler & Paymaster RPC is a Open Collection published by ZeroDev on the APIs.io network, version 3.0.
JSON-RPC 2.0 over HTTPS. All calls are an HTTP POST of a {jsonrpc,id,method,params} envelope to a single project-scoped URL: https://rpc.zerodev.app/api/v3/{projectId}/chain/{chainId}. Authentication is by projectId embedded in the URL path. The same endpoint serves both bundler and paymaster methods; append ?provider=ULTRA_RELAY to route through UltraRelay.
The collection contains 11 requests organised into 2 folders.
Tagged areas include Account Abstraction, Smart Wallets, ERC-4337, EIP-7702, and Paymaster.
Requests & Folders
Related API Specs
Work with this as data
Every collection 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 collections
4 MCP tools reach this
find_collectionsBrowse and filter every collection in the catalog.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.
Call it yourself
curl for this page
curl "https://apis.io/api/v1/collections/open-zerodev"
curl "https://apis.io/api/v1/collections?limit=25"
Discovery needs no key. Ratings and market analysis are Pro.