Circle AppKit — Modular Wallets & Passkey Transport

Circle runtime status, health probes, AppKit readiness, modular wallet diagnostics, and OKX wallet-chain compatibility routes. Secrets injected server-side from Azure Key Vault. Passkey transport + Pimlico RPC URLs composed server-side.

Auth: Server-side secretsEVM onlyOKX wallet SDKPimlico gasPasskey transport

Runtime & Health

Method	Endpoint	Description
GET	`/api/circle/status`	Runtime readiness snapshot with secrets presence
GET	`/api/circle/probe`	Active chain RPC probe (query: chain)
GET	`/api/circle/chains`	Chain catalog snapshot (query: operation)

AppKit

Method	Endpoint	Description
GET	`/api/circle/appkit/status`	AppKit readiness status

Modular Kit

Method	Endpoint	Description
GET	`/api/circle/modular-kit/summary`	Diagnostics by chain family (query: chain)

Wallet Helpers (OKX-backed)

Circle-compatible OKX wallet chains + generation. EVM-only.

Method	Endpoint	Description
GET	`/api/circle/appkit/wallet-helper/chains`	List EVM-compatible OKX wallet chains for Circle
POST	`/api/circle/appkit/wallet-helper/wallet`	Generate/derive wallet for Circle AppKit
GET	`/api/circle/okx/chains`	Alias for wallet-helper/chains
POST	`/api/circle/okx/wallet`	Alias for wallet-helper/wallet
GET	`/api/circle/okx/status`	Combined Circle+OKX readiness snapshot

Quick examples

# Check Circle runtime status
curl -s https://api.onimbus.cloud/api/circle/status

# Probe a specific chain
curl -s 'https://api.onimbus.cloud/api/circle/probe?chain=8453'

# List AppKit-compatible wallet chains
curl -s https://api.onimbus.cloud/api/circle/appkit/wallet-helper/chains

# Preview a Circle-ready wallet (no key leak)
curl -s -X POST https://api.onimbus.cloud/api/circle/appkit/wallet-helper/wallet \
  -H 'content-type: application/json' \
  -d '{"walletChain":"eth","account":0,"index":0}'

# Modular Kit diagnostics
curl -s 'https://api.onimbus.cloud/api/circle/modular-kit/summary?chain=8453'