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EVM Opcode Fuzzer MCP
x402
EVM Opcode Fuzzer MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.35/call, status unknown (last checked 2026-10-15).
Fuzz-tests EVM bytecode or smart contract opcodes to discover vulnerabilities, edge cases, and unexpected behaviors through automated input mutation.
Price / call$0.35
Success—
StatusUnknown
How this service works
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Output
Returns a fuzzing report detailing discovered opcode edge cases, unexpected execution paths, potential vulnerabilities, error conditions, and any crashes or panics encountered during automated mutation testing of the provided EVM bytecode.
Example use cases
Smart contract opcode security audit
“I've got some compiled EVM bytecode from a new DeFi contract and I want to check it for opcode-level vulnerabilities before deploying — can you run a fuzzer over it and tell me what edge cases or bugs you find?”
Detecting reentrancy via opcode fuzzing
“Run opcode fuzzing on this EVM bytecode and specifically look for patterns that could indicate reentrancy or unexpected CALL opcode behaviors: 0x608060405234801561001057600080fd...”
Pre-deployment EVM regression testing
“Before I push this smart contract to mainnet, can you fuzz its opcodes with random inputs to make sure there are no crashes, panics, or out-of-gas surprises hiding in the execution paths?”
Technical details
Endpoint
POSThttps://api.m2mcent.com/evm-opcode-fuzzer-mcp/api/process?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need automated, mutation-based security testing of EVM bytecode or smart contract opcode sequences, particularly during pre-deployment audits or CI/CD pipelines for Ethereum smart contracts. Prefer it over static analysis tools when you want to discover runtime edge cases and crash conditions that only emerge under unexpected input conditions.
Side effects
- Invalid or malformed bytecode input causes parsing failure
- Bytecode too large for processing window
- Timeout on deeply recursive or infinite-loop opcodes
- Empty data field returns error with no results
- Non-EVM data passed in the data field returns unsupported format error
Output
Schema · Response
{
"type": "json",
"example": {
"success": true
}
}Tags
x402
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