- LOGS
- TRACE
- DATA
- HUMAN
Short answer
How do I debug blockchain transactions with my AI?
Give your AI a transaction hash, and it will use Blockchair to pull the specific logs and contract calls needed to find the error. You get a clear explanation of the failure instead of staring at raw hex data. Here is what you'll find.
The results.
Where your debugging efforts land.
The AI sorts the raw blockchain data into these specific outcomes.
LOGS
Error identification
The AI scans internal calls to find revert reasons or failed logic. You get the specific reason the transaction stopped.
TRACE
Execution flow
Your agent maps out the sequence of contract calls. This shows you the exact path the transaction took before it failed.
DATA
State inspection
The AI pulls the input and output data from the transaction. You see the exact parameters that triggered the issue.
HUMAN
Manual fix
The AI identifies the bug but cannot rewrite the smart contract. You take the findings to your code editor to apply the patch.
The workflow
What your AI does when a hash arrives.
Your agent acts as a bridge between the blockchain and your reasoning engine.
Fetch transaction details
The AI pulls the core transaction data using the hash you provide.
get_transactionInspect contract logic
It digs into the internal calls to see how the smart contract behaved.
get_contract_callsAnalyze failure reasons
The agent compares the call logs against the expected execution path to find the mismatch.
get_contract_callsSummarize the bug
The AI translates the technical revert reason into a plain English explanation of the error.
get_transaction
Try it
Copy these to start.
Use these prompts to kick off the debugging process.
Starting points
Replace the transaction hashes and contract addresses with your actual data.
Blockchair Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_5UGquZAtkUXwg20SDzhN0BLiU6oYCsjOeodEugDs/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — Blockchair capabilities are ready to use.
{
"mcpServers": {
"blockchair-universal-blockchain-search-engine-api-mcp": {
"url": "https://edge.vinkius.com/vk_preview_5UGquZAtkUXwg20SDzhN0BLiU6oYCsjOeodEugDs/mcp"
}
}
}Analyze this transaction hash and tell me why it failed: 0xabc123...
Look at the internal contract calls for this transaction and find the revert reason: 0xdef456...
Check the input data for this transaction to see if the parameters were correct: 0x789ghi...
Trace the execution flow of this contract call to see where the logic broke: 0xjkl012...
Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline
Start here
Connect Blockchair once, then ask.
One click connects the Blockchair MCP to your client. Your credentials stay encrypted and the tools are ready to use immediately.
Connect Blockchair to your AIFAQ
How this task behaves.
- 01
Can the AI fix the transaction for me?
No. The AI can only read and analyze the data. You must manually fix the code or resubmit the transaction.
- 02
Does the AI need my private keys?
No. This MCP only reads public blockchain data through Blockchair. It has no access to your wallet or private keys.
- 03
Can it debug transactions on any chain?
Yes, as long as the transaction is indexed by Blockchair's supported networks.
- 04
Can the AI execute new transactions?
No. The available tools are strictly for reading transaction and contract call data.
- 05
What if the transaction is very recent?
The AI relies on Blockchair's indexing, so there may be a slight delay between a transaction being mined and it appearing in the data.
More questions about Blockchair? The Connector page answers them. See everything the Blockchair Connector can do
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