morpho-cli
Experimental (pre-v1.0) — Command syntax, response schemas, and available operations may change. Always verify critical outputs independently.
Query Morpho protocol data and build unsigned transactions. All commands output JSON to stdout. No private keys needed.
npx @morpho-org/cli@latest <command> [options]Supported chains: ethereum, base, arbitrum, optimism, polygon, unichain, worldchain, katana, hyperevm, monad, stable. Every command requires --chain.
Response Schemas
- Read commands — exact JSON shapes for query-vaults, get-vault, query-markets, get-market, get-positions, get-token-balance, health-check, get-supported-chains
- Write commands — exact JSON shapes for prepare-* and simulate-transactions
Quick Reference
# Read — query protocol state
npx @morpho-org/cli@latest query-vaults --chain base [--asset-symbol USDC] [--asset-address 0x...] [--sort apy_desc|apy_asc|tvl_desc|tvl_asc] [--limit 5] [--skip 0] [--fields address,name,symbol,apyPct,tvl,tvlUsd,feePct]
npx @morpho-org/cli@latest get-vault --chain base --address 0x...
npx @morpho-org/cli@latest query-markets --chain base [--loan-asset 0x...] [--collateral-asset 0x...] [--sort-by supplyApy|borrowApy|netSupplyApy|netBorrowApy|supplyAssetsUsd|borrowAssetsUsd|totalLiquidityUsd] [--sort-direction asc|desc] [--limit 10] [--skip 0] [--fields supplyApy,borrowApy,totalSupply,totalBorrow,totalCollateral,totalLiquidity,supplyAssetsUsd,borrowAssetsUsd,collateralAssetsUsd,liquidityAssetsUsd]
npx @morpho-org/cli@latest get-market --chain base --id 0x...
npx @morpho-org/cli@latest get-positions --chain base --user-address 0x...
npx @morpho-org/cli@latest get-token-balance --chain base --user-address 0x... --token-address 0x...
# Write — prepare unsigned transactions (simulation runs by default; add --no-simulate to skip)
npx @morpho-org/cli@latest prepare-deposit --chain base --vault-address 0x... --user-address 0x... --amount 1000
npx @morpho-org/cli@latest prepare-withdraw --chain base --vault-address 0x... --user-address 0x... --amount max
npx @morpho-org/cli@latest prepare-supply --chain base --market-id 0x... --user-address 0x... --amount 5000
npx @morpho-org/cli@latest prepare-borrow --chain base --market-id 0x... --user-address 0x... --borrow-amount 1
npx @morpho-org/cli@latest prepare-repay --chain base --market-id 0x... --user-address 0x... --amount max
npx @morpho-org/cli@latest prepare-supply-collateral --chain base --market-id 0x... --user-address 0x... --amount 5000
npx @morpho-org/cli@latest prepare-withdraw-collateral --chain base --market-id 0x... --user-address 0x... --amount max
# Simulate — standalone re-simulation or arbitrary transaction simulation
npx @morpho-org/cli@latest simulate-transactions --chain base --from 0x... --transactions '<JSON>' --analysis-context '<JSON>'
# Utility
npx @morpho-org/cli@latest health-check
npx @morpho-org/cli@latest get-supported-chainsWrite Workflow: Prepare → Present
Every write operation follows two steps. Simulation runs automatically inside prepare-*.
- Prepare — run a
prepare-*command. The CLI handles token decimals, allowances, approvals, and simulation automatically. Returns a flatPreparedOperationwith the fields you need at the root:operation,summary,requirements(informational — approval txs are already intransactions),transactions(the unsigned payloads to sign),simulated,simulationOk,totalGasUsed,outcome,warnings. Pass--no-simulateto skip simulation (in which casesimulationOk,totalGasUsed, and most ofoutcomewill be absent). - Present — show
summary, thetransactionslist, the keyoutcomefields (see table below), and anywarningsin tabular format. IfsimulationOkisfalse, inspectrevertReasonbefore presenting.
The outcome block is discriminated by operation type:
| Operation | outcome shape | Key fields to surface |
|---|---|---|
deposit, withdraw (vaults) | outcome.vault | sharesReceived, assetsReceived, positionAssets, positionShares |
supply, borrow, repay, supply_collateral, withdraw_collateral (markets) | outcome.market | healthFactor, isHealthy, maxBorrowable, utilizationBeforePct → utilizationAfterPct, borrowApyBeforePct → borrowApyAfterPct, plus post-operation supplied / borrowed / collateral (raw integer strings — divide by 10^decimals) |
Use simulate-transactions separately only for re-simulating with different parameters or simulating arbitrary transactions. Its top-level success field is allSucceeded (not simulationOk) — see references/write.md.
Simulation Failures
| Revert | Cause | What to do |
|---|---|---|
ERC20: insufficient allowance | Missing approval | Re-prepare — CLI should include approvals automatically |
ERC4626ExceededMaxWithdraw | Vault liquidity insufficient | Reduce amount (see below) |
insufficient balance | User lacks tokens | Tell the user |
| Custom error hex | Protocol-specific | Query state with get-market or get-vault to diagnose |
Partial Withdrawal
When prepare-withdraw --amount max cannot withdraw the full balance, the CLI returns a PreparedOperation whose warnings[] calls out the liquidity shortfall. The response is still valid — it represents the largest withdrawable amount right now.
- Surface the warning to the user verbatim — do not silently accept a smaller withdrawal.
- Offer two paths:
- Accept the partial amount the CLI prepared (inspect outcome.vault.assetsReceived for the concrete figure, optionally re-run prepare-withdraw with --amount <value> using ~99% of that figure as a safety buffer against interest accrual between prepare and execute). - Wait for more liquidity — locked assets unlock as underlying-market borrowers repay or the curator reallocates.
- Never invent an amount by parsing the
summarystring — it is a human sentence, not a machine-readable field.
Safety Rules
- Check simulation before presenting — simulation runs by default; check
simulationOk(forprepare-*) orallSucceeded(forsimulate-transactions) before presenting - Never sign or broadcast — unsigned payloads only
- Watch health factor for borrows — warn if below 1.1
- Communicate liquidity constraints clearly for partial withdrawals
CLI Errors
When a npx @morpho-org/cli@latest command fails, stop and report the error to the user. Do not:
- Retry with different parameters you invented
- Fall back to alternative tools or APIs
- Attempt to work around missing required options
- Pipe output through
jqor other filters — use the CLI's built-in flags (--fields,--sort-by,--limit, etc.) to shape the response
Common Mistakes
- Forgetting
--chain— every command requires it, there is no default - Using chain IDs (
1,8453) instead of names (ethereum,base) - Dividing
TokenAmount.valueby10^decimals—TokenAmountvalues are already decimal-applied (a USDC value of"1000"means $1,000, not 1,000 micro-USDC).*Pctfields are already percent-scaled;*Usdfields are already in dollars. The only raw integer strings are insideoutcome.market.{supplied,borrowed,collateral}andoutcome.vault.{sharesReceived,assetsReceived,positionShares}— those do need/10^decimalsfor display. - Assuming 18 decimals — USDC/USDT have 6, WBTC/cbBTC have 8. Read decimals from response metadata; never assume.
- Passing raw units as
--amount— CLI expects human-readable (1000not1000000000) - Using
--no-simulatewithout reason — simulation is on by default; only skip when debugging or for speed - Ignoring
simulationOk === falseonprepare-*(orallSucceeded === falseonsimulate-transactions) — diagnose before presenting