Bankr Agent Arbitrary Transactions

This lets Claude submit raw EVM transactions with explicit calldata to any supported blockchain. You're working with the low-level stuff here: specifying the recipient address, hex-encoded data payload, value, and chain ID directly. It's useful when you need precise control over what gets sent to a contract and standard transaction builders are too opinionated or don't support your use case. The repo has 78 stars, so there's some community validation. Fair warning though, arbitrary transaction submission means you better know what you're doing because there's no guardrail between your calldata and the blockchain.

GitHub stars: 80
last updated: Aug 21, 2026

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Install

$ npx -y skills add bankrbot/claude-plugins --skill 'Bankr Agent - Arbitrary Transactions' --agent claude-code

Installs into .claude/skills of the current project.

Files

Arbitrary Transaction Submission

Submit raw EVM transactions with explicit calldata to any supported chain.

JSON Format

{
  "to": "0x...",
  "data": "0x...",
  "value": "0",
  "chainId": 8453
}

Field	Type	Description
`to`	string	Target contract address (0x + 40 hex chars)
`data`	string	Calldata to execute (0x + hex string)
`value`	string	Amount in wei (e.g., "0", "1000000000000000000")
`chainId`	number	Target chain ID

Supported Chains

Chain	Chain ID
Ethereum	1
Polygon	137
Base	8453
Unichain	130

Prompt Examples

Submit a raw transaction:

Submit this transaction:
{
  "to": "0x1234567890abcdef1234567890abcdef12345678",
  "data": "0xa9059cbb000000000000000000000000recipient00000000000000000000000000000000000000000000000000000000000f4240",
  "value": "0",
  "chainId": 8453
}

SKILL.md on GitHub

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