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 all read tools; includes reading conventions that apply to every response
- Write commands —
PreparedOperationshape,outcomesub-schema, and per-tool input shapes for prepare-*
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 automatically via @morpho-org/evm-simulation)
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
# Utility
npx @morpho-org/cli@latest health-check
npx @morpho-org/cli@latest get-supported-chains
Write 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 aPreparedOperationwithtransactions,summary,warnings,outcome(post-state preview), and an optionalsimulationblock. - Verify simulation: the response's optional
simulation.transferslists the actual transfers an EVM simulation observed. When Tenderly is configured (MCP path withTENDERLY_*env vars set) and ran successfully,simulation.assetChanges[]is also present — each entry carries{ type, from, to, amount, rawAmount, dollarValue, tokenInfo: { address, symbol, decimals, name } }. UseassetChanges(when present) for richer human-readable summaries;transfersis the canonical agent-side check. Absence ofsimulationplus anerror-level warning (SIMULATION_REVERTED,BUNDLER_RETAINS_FUNDS,SANCTIONED_ADDRESS) means the bundle is known-bad — do not present transactions for signing. - Present — show the summary, list of unsigned transactions, outcome, and any warnings (low health factor, partial liquidity) in tabular format.
Simulation runs inline as part of every prepare-* call — there is no separate simulation command.
| 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) |
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.assetsReceivedfor the concrete figure, optionally re-runprepare-withdrawwith--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.
- Accept the partial amount the CLI prepared (inspect
- Never invent an amount by parsing the
summarystring — it is a human sentence, not a machine-readable field.
Safety Rules
- Check simulation before presenting — check for
simulation.transfersin the response; if absent andwarningscontains anerror-level entry, halt and diagnose 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) - Ignoring absent
simulationfield plus anerror-level warning — diagnose before presenting - Re-computing amounts from
TokenAmount.value— the value is already decimal-applied; quote it directly to the user