prepare_morpho_supply_collateral

Build an unsigned Morpho Blue supplyCollateral transaction — adds collateral to a market. Includes an approve step if needed.

SERVERVaultPilot MCP SOURCEvaultpilot-mcp

Critical RISK CLASS

Category Financial

Parameters 53 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-szhygulin-vaultpilot-mcp/prepare-morpho-supply-collateral.md

WHAT IT DOES

What prepare_morpho_supply_collateral does on VaultPilot MCP

AI agents use prepare_morpho_supply_collateral to commit financial operations through VaultPilot MCP, usually the final step of a payment, billing, or trading workflow. A call moves real money.

Parameter	Type	Required	Description
`chain`	string	—	EVM chain Morpho Blue is deployed on. Currently only ethereum is enabled.
`amount`	string	Yes	Human-readable decimal amount, NOT raw wei/base units. Example: "10" for 10 USDC. Pass "max" for full-balance withdraw/repay.
`wallet`	string	Yes	0x-prefixed EVM wallet address (40 hex chars) that will execute this action.
`marketId`	string	Yes	Morpho Blue market id — 32-byte hex (0x + 64 hex chars). Identifies the market's (loanToken, collateralToken, oracle, irm, lltv) tuple. Discover via get_morpho_
`approvalCap`	string	—	Cap on the ERC-20 approval preceding this action. Omit for "unlimited" (standard DeFi UX — fewer follow-up approvals). Pass "exact" to approve only what this ac

Parameters from the server's own tool schema.

RISK

Why prepare_morpho_supply_collateral is rated Critical

Supplying collateral to a Morpho Blue market is a financial operation that locks user assets into a DeFi protocol. The approve step grants smart contract permission to transfer tokens. While described as 'unsigned' (just building the tx), it directly facilitates a financial commitment of crypto assets in a lending market, with blast radius being loss or locking of funds if misused. Financial > all other categories.

From the tool's definition 'supplyCollateral transaction — adds collateral to a market. Includes an approve step if needed' — this commits crypto assets as collateral in a DeFi lending protocol, directly moving funds and granting token approvals

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs prepare_morpho_supply_collateral safely

PolicyLayer is an MCP gateway: it sits between your AI agents and VaultPilot MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For prepare_morpho_supply_collateral, this is the rule to start with:

prepare_morpho_supply_collateral Approval-gated

Any call to prepare_morpho_supply_collateral is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "prepare_morpho_supply_collateral": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect VaultPilot MCP, apply this rule, and every prepare_morpho_supply_collateral call is checked against it from then on.

FAQ

Questions about prepare_morpho_supply_collateral

What does the prepare_morpho_supply_collateral tool do? +

Build an unsigned Morpho Blue supplyCollateral transaction — adds collateral to a market. Includes an approve step if needed. It is categorised as a Financial tool in the VaultPilot MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

What parameters does prepare_morpho_supply_collateral accept? +

prepare_morpho_supply_collateral accepts 5 parameters: chain, amount, wallet, marketId, approvalCap. Required: amount, wallet, marketId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on prepare_morpho_supply_collateral? +

Register the VaultPilot MCP server in PolicyLayer and add a rule for prepare_morpho_supply_collateral: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches VaultPilot MCP. Nothing to install.

What risk level is prepare_morpho_supply_collateral? +

prepare_morpho_supply_collateral is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit prepare_morpho_supply_collateral? +

Yes. Add a rate_limit block to the prepare_morpho_supply_collateral rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block prepare_morpho_supply_collateral completely? +

Set action: deny in the PolicyLayer policy for prepare_morpho_supply_collateral. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides prepare_morpho_supply_collateral? +

prepare_morpho_supply_collateral is provided by the VaultPilot MCP server (vaultpilot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on VaultPilot, and thousands of servers like it.

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