# Biconomy Sponsorship Paymaster

**Canonical:** https://apis.io/apis/biconomy/biconomy-sponsorship-paymaster/  
**Provider:** Biconomy — https://apis.io/providers/biconomy/  
**Documentation:** https://docs.biconomy.io/gasless-apps/sponsorship

Biconomy Sponsorship Paymaster is one of 8 APIs that [Biconomy](https://apis.io/providers/biconomy/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Account Abstraction, ERC-4337, Paymaster, Gas Sponsorship, and Gasless. The published artifact set on APIs.io includes API documentation.

ERC-4337 paymaster service that fronts gas on behalf of end users so dApps can offer gasless UX. Two modes — full sponsorship (developer pays gas, post-paid invoiced monthly) and pay-in-tokens (user pays gas in ERC-20). All sponsorship limits (per-tx USD cap, per-user daily cap, allowed contracts, chain whitelist) are configured per project in the Biconomy Dashboard and enforced before /v1/quote returns a sponsored quote.

## Machine-readable artifacts (6)

- **Documentation** — https://docs.biconomy.io/gasless-apps
- **Documentation** — https://docs.biconomy.io/gasless-apps/sponsorship
- **Documentation** — https://docs.biconomy.io/gasless-apps/testnet-sponsorship
- **Documentation** — https://docs.biconomy.io/gasless-apps/pay-in-tokens
- **SourceCode** — https://github.com/bcnmy/biconomy-paymasters
- **Dashboard** — https://dashboard.biconomy.io

## Other Biconomy APIs (7)

- [Biconomy Bundler API](https://apis.io/apis/biconomy/biconomy-bundler-api/)
- [Biconomy Nexus Smart Account](https://apis.io/apis/biconomy/biconomy-nexus-smart-account/)
- [Biconomy Smart Sessions API](https://apis.io/apis/biconomy/biconomy-smart-sessions-api/)
- [Biconomy AbstractJS SDK](https://apis.io/apis/biconomy/biconomy-abstractjs-sdk/)
- [Biconomy instructions API](https://apis.io/apis/biconomy/biconomy-instructions-api/)
- [Biconomy mee API](https://apis.io/apis/biconomy/biconomy-mee-api/)
- [Biconomy root API](https://apis.io/apis/biconomy/biconomy-root-api/)

## Tags

Account Abstraction, ERC-4337, Paymaster, Gas Sponsorship, Gasless

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