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Dry-run EVM transaction simulation to preview outcomes before broadcasting via Crypto APIs
About
Simulate EVM transactions before broadcasting them using your AI assistant. This hosted MCP server connects directly to the Crypto APIs Simulate product, no local installation needed. Perform dry-run transaction simulations on EVM chains (Ethereum, BSC, Polygon, Avalanche, Arbitrum, Base, Optimism) to preview balance changes, token transfers, gas usage, and potential errors before submitting to the network. Requires a Crypto APIs API key passed via the x-api-key header.
What You'll Need
Set these up before or after installing:
CryptoAPIs API key. Sign up at cryptoapis.io to get your free key — passed via the x-api-key headerRequired
Environment variable: x-api-key
Sign up freeGetting Started
Once installed, try these example prompts and explore these capabilities:
- 1"Simulate this Ethereum transaction and show me what would happen"
- 2"Preview the token balance changes from this Polygon swap"
- 3"What gas would be used for this contract interaction?"
- 4"Will this transaction succeed or fail?"
- 5Tool: simulate_transaction_evm — Dry-run simulate an EVM transaction to preview outcomes
- 6Tool: simulate_asset_transfers — Preview asset balance changes from a simulated transaction
How to Connect
Remote Plugin
No local installation needed. Your AI client connects to the remote endpoint directly.
Add this to your MCP configuration to connect:
{
"mcpServers": {
"cryptoapis-simulate-mcp-http-server": {
"env": {
"x-api-key": "your-x-api-key-here"
},
"url": "https://ai.cryptoapis.io/mcp/simulate"
}
}
}Security Report
9.0
Low Risk9.0Low RiskRemote MCP endpoint verified (352ms response). Server: cryptoapis-mcp-http-server. 2 trust signals: valid MCP protocol, requires auth. No security issues detected.
Endpoint probed · 1 finding
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
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