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OpenZeppelin

OpenZeppelin Contracts MCP Server

Official
by OpenZeppelin

solidity-stablecoin

Generate a stablecoin ERC-20 token contract with customizable features like minting, burning, pausing, and voting. Returns the source code in a Markdown block.

Instructions

Make a stablecoin token that uses the ERC-20 standard. Experimental, some features are not audited and are subject to change.

Returns the source code of the generated contract, formatted in a Markdown code block. Does not write to disk.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameYesThe name of the contract
symbolYesThe short symbol for the token
decimalsNoThe number of decimals used to represent token amounts. Defaults to 18.
burnableNoWhether token holders will be able to destroy their tokens
pausableNoWhether privileged accounts will be able to pause specifically marked functionality. Useful for emergency response.
premintNoThe number of tokens to premint for the deployer.
premintChainIdNoThe chain ID of the network on which to premint tokens.
mintableNoWhether privileged accounts will be able to create more supply or emit more tokens
callbackNoWhether to include support for code execution after transfers and approvals on recipient contracts in a single transaction.
permitNoWhether without paying gas, token holders will be able to allow third parties to transfer from their account.
votesNoWhether to keep track of historical balances for voting in on-chain governance. Voting durations can be expressed as block numbers or timestamps.
flashmintNoWhether to include built-in flash loans to allow lending tokens without requiring collateral as long as they're returned in the same transaction.
crossChainBridgingNoWhether to allow authorized bridge contracts to mint and burn tokens for cross-chain transfers. Options are to use custom bridges on any chain, to embed an ERC-7786 based bridge directly in the token contract, or to use the SuperchainERC20 standard with the predeployed SuperchainTokenBridge. The SuperchainERC20 feature is only available on chains in the Superchain, and requires deploying your contract to the same address on every chain in the Superchain.
crossChainLinkAllowOverrideNoWhether to allow replacing a crosschain link that has already been registered. Only used if crossChainBridging is set to "erc7786native".
namespacePrefixNoThe prefix for ERC-7201 namespace identifiers. It should be derived from the project name or a unique naming convention specific to the project. Used only if the contract includes storage variables and upgradeability is enabled. Default is "myProject".
accessNoThe type of access control to provision. Ownable is a simple mechanism with a single account authorized for all privileged actions. Roles is a flexible mechanism with a separate role for each privileged action. A role can have many authorized accounts. Managed enables a central contract to define a policy that allows certain callers to access certain functions.
infoNoMetadata about the contract and author
restrictionsNoWhether to restrict certain users from transferring tokens, either via allowing or blocking them. This feature is experimental, not audited and is subject to change.
freezableNoWhether authorized accounts can freeze and unfreeze accounts for regulatory or security purposes. This feature is experimental, not audited and is subject to change.
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description effectively discloses that the tool is experimental, not audited, returns code in Markdown, and does not write to disk, covering key behavioral traits for a code generator.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two concise sentences with essential information front-loaded: purpose first, then return format and side effects. No superfluous text.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a tool with 19 parameters and no output schema, the description covers core functionality, return format, and risk status. However, it lacks guidance on typical stablecoin use cases.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so baseline is 3. The description adds no extra meaning to parameters beyond what the schema already provides.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states it generates a stablecoin token using the ERC-20 standard, distinguishing it from siblings like solidity-erc20 (generic) and solidity-erc721 (NFT).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance on when to use this tool versus alternatives like solidity-erc20 or solidity-custom. The description only mentions experimental status, not comparative usage.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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