Osmosia · dev

Osmosia Faucet

A dev faucet + ERC-4337 paymaster/bundler for Osmosia, the disposable dev chain (chainId 1337). Use it to fund test addresses with gas (ETH) and test tokens, and to sponsor account-abstraction userOps. No API keys — endpoints are rate-limited.

Chain

RPC → rpc.osdev.pay-gate.io Explorer → explore.osdev.pay-gate.io Live config → /about (JSON)

Fund an address

POST/topup

Send ETH (gas) and/or test tokens to an address. Tokens: usdc, wbs_usdc, wbs_usdt.

curl -X POST https://os-faucet.osdev.pay-gate.io/topup \
  -H 'content-type: application/json' \
  -d '{ "address": "0xYourAddress", "eth": "0.1", "wbs_usdc": "100" }'

Account abstraction (ERC-4337)

POST/paymaster/rpc

Pimlico-compatible paymaster JSON-RPC (pm_getPaymasterStubData / pm_getPaymasterData) — the wallet calls this to sponsor a userOp's gas.

Also: POST/paymaster/sponsor (REST) · POST/handleOps (bundler)

EntryPoint / paymaster / factory addresses and bundler URLs (v0.6 & v0.7) are in /about.

Dev environment · addresses are ephemeral and reset when the chain is rebuilt.