# Pimlico Bundler & Paymaster API

**Canonical:** https://apis.io/apis/pimlico/pimlico-bundler-paymaster-api/  
**Provider:** Pimlico — https://apis.io/providers/pimlico/  
**Base URL:** https://api.pimlico.io  
**Documentation:** https://docs.pimlico.io/references/bundler

Pimlico Bundler & Paymaster API is one of 2 APIs that [Pimlico](https://apis.io/providers/pimlico/) publishes on the [APIs.io](https://apis.io/) network. The published artifact set on APIs.io includes an API reference and API documentation.

Unified ERC-4337 JSON-RPC endpoint exposing both the Pimlico bundler (eth_sendUserOperation, eth_estimateUserOperationGas, eth_getUserOperationReceipt, pimlico_getUserOperationGasPrice, pimlico_getUserOperationStatus) and paymaster (pm_sponsorUserOperation, pm_getPaymasterData, pm_getPaymasterStubData, ERC-20 token quotes) methods, addressed per chain and authenticated with an API key query parameter.

## Machine-readable artifacts (3)

- **APIReference** — https://docs.pimlico.io/references/bundler
- **Documentation** — https://docs.pimlico.io
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/pimlico/refs/heads/main/apis.yml

## Other Pimlico APIs (1)

- [Pimlico Platform API](https://apis.io/apis/pimlico/pimlico-platform-api/)

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/pimlico/pimlico-bundler-paymaster-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/pimlico/.