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cardano-mcp-transactions

Sign and submit pre-built Cardano transactions via a configured MCP server.

8|2|Updated Jan 24, 2026
Search Tags:#mcp#blockchain#transactions#submission#signing#cardano
One-click install
npx skills add https://github.com/Flux-Point-Studios/cardano-agent-skills --skill cardano-mcp-transactions
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: cardano-mcp-transactions
Source: https://github.com/Flux-Point-Studios/cardano-agent-skills/tree/main/skills/cardano-mcp-transactions
Command: npx skills add https://github.com/Flux-Point-Studios/cardano-agent-skills --skill cardano-mcp-transactions

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill allows users to securely sign and submit pre-built Cardano transactions using a configured Cardano Message Passing (MCP) server, streamlining the process for users who have unsigned transaction data.

Core Features & Use Cases

  • Transaction Signing & Submission: Leverages an MCP server to sign and broadcast transactions.
  • High-Risk Operation: Requires explicit user confirmation after a structured preview due to the direct submission nature.
  • Use Case: A user receives an unsigned transaction CBOR from a dApp and wants to sign and submit it using their MCP-configured wallet without needing to interact directly with the command line.

Quick Start

Sign and submit the provided unsigned transaction CBOR hex using the MCP server.

Frequently Asked Questions about cardano-mcp-transactions

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I sign and submit pre-built Cardano transactions using an MCP server?▼

To sign and submit Cardano transactions, provide unsigned transaction CBOR to the MCP server. It signs and broadcasts the transaction after presenting a structured preview and requiring explicit user confirmation.

Can I use transaction CBOR from MeshTxBuilder or cardano-cli with this signing process?▼

Yes, you can submit transaction CBOR from sources like MeshTxBuilder, cardano-cli, and dApp APIs. The MCP server processes the unsigned transaction data and handles the signing and submission.

Does the Cardano MCP transaction submission work on testnet or only mainnet?▼

Cardano transaction submission assumes mainnet unless testnet support is explicitly validated. You must verify your MCP server configuration supports testnet environments before attempting testnet transactions.

Do I need to provide my seed phrase to sign transactions via the Cardano MCP server?▼

No, you never need to provide a seed phrase to sign Cardano transactions. The MCP server enforces strict safety rules, failing closed on uncertainty and never asking for seed phrases during the signing process.

What happens if there is uncertainty during the Cardano transaction signing process?▼

If uncertainty occurs during Cardano transaction signing, the process fails closed to ensure safety. High-risk operations always require explicit user confirmation after a structured preview before proceeding.

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