Multi-chain crypto wallet with transfers, swaps, and paid API access.
IMPORTANT: If any tool returns "Not authenticated" or "Invalid API key", run the login flow.
Login is two-phase (because Claude Code runs commands non-interactively):
Phase 1 — Start the device flow (returns a URL and code as JSON):
node <skill-path>/scripts/wallet.mjs login
Show the verification_url and user_code to the user. Tell them to open the URL in their browser and enter the code.
Phase 2 — After the user confirms they have approved, poll for the token:
node <skill-path>/scripts/wallet.mjs login --poll <device_code> <interval> <expires_in>
Use the device_code, interval, and expires_in values from Phase 1 output.
Credentials are saved to ~/.spongewallet/credentials.json automatically.
Credential resolution order:
SPONGE_API_KEY environment variable (if set, skips stored credentials)~/.spongewallet/credentials.json (saved by login)Other auth commands:
node wallet.mjs whoami — show current auth statusnode wallet.mjs logout — remove stored credentialsnode <skill-path>/scripts/wallet.mjs <tool_name> '<json_args>'
Output is JSON with status: "success" or status: "error".
| Tool | Description | Required | Optional |
|---|---|---|---|
| ------ | ------------- | ---------- | ---------- |
get_balance | Check balances across chains | — | chain |
get_solana_tokens | Discover all SPL tokens in wallet | chain | — |
search_solana_tokens | Search Jupiter token database | query | limit |
| Tool | Description | Required | Optional |
|---|---|---|---|
| ------ | ------------- | ---------- | ---------- |
evm_transfer | Transfer ETH/USDC on Ethereum/Base | chain, to, amount, currency | — |
solana_transfer | Transfer SOL/USDC on Solana | chain, to, amount, currency | — |
| Tool | Description | Required | Optional |
|---|---|---|---|
| ------ | ------------- | ---------- | ---------- |
solana_swap | Swap tokens via Jupiter | chain, input_token, output_token, amount | slippage_bps |
| Tool | Description | Required | Optional |
|---|---|---|---|
| ------ | ------------- | ---------- | ---------- |
get_transaction_status | Check tx status | transaction_hash, chain | — |
get_transaction_history | View past transactions | — | limit, chain |
| Tool | Description | Required | Optional |
|---|---|---|---|
| ------ | ------------- | ---------- | ---------- |
request_funding | Request funds from owner | amount, chain, currency | — |
withdraw_to_main_wallet | Return funds to owner | chain, amount | currency |
| Tool | Description | Required | Optional |
|---|---|---|---|
| ------ | ------------- | ---------- | ---------- |
sponge | Unified paid API interface | task | See REFERENCE.md |
create_x402_payment | Create x402 payment payload | chain, to, amount | token, decimals |
Test keys (sponge_test_*): sepolia, base-sepolia, solana-devnet, tempo
Live keys (sponge_live_*): ethereum, base, solana
node wallet.mjs get_balance '{"chain":"base"}'
node wallet.mjs evm_transfer '{"chain":"base","to":"0x...","amount":"10","currency":"USDC"}'
node wallet.mjs get_transaction_status '{"transaction_hash":"0x...","chain":"base"}'
node wallet.mjs search_solana_tokens '{"query":"BONK"}'
node wallet.mjs solana_swap '{"chain":"solana","input_token":"SOL","output_token":"BONK","amount":"0.5"}'
node wallet.mjs sponge '{"task":"search","query":"AI research papers"}'
node wallet.mjs sponge '{"task":"image","prompt":"sunset over mountains"}'
node wallet.mjs sponge '{"task":"predict","semantic_search":"will-trump-win-2028"}'
node wallet.mjs sponge '{"task":"crawl","url":"https://example.com"}'
node wallet.mjs sponge '{"task":"parse","document_url":"https://example.com/doc.pdf"}'
node wallet.mjs sponge '{"task":"prospect","apollo_query":"Stripe","apollo_endpoint":"companies"}'
| Error | Resolution |
|---|---|
| ------- | ------------ |
Not authenticated | Run node wallet.mjs login |
Invalid API key | Run node wallet.mjs login to re-authenticate |
Chain 'X' is not allowed | Use correct key type (test vs live) for the chain |
Insufficient balance | Use request_funding |
Address not in allowlist | Add recipient in the dashboard |
See REFERENCE.md for detailed parameter docs.
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