MCP server for signed time and witness receipts. Prove when an agent action happened. Verify free.
Setup
Choose your client, copy the config, then fill in any required environment variables.
Local
claude mcp add popcorn --env EVM_PRIVATE_KEY='<EVM_PRIVATE_KEY>' -- npx -y @violetclaire/popcorn-mcp~/.codex/config.toml
[mcp_servers.popcorn]
command = "npx"
args = ["-y", "@violetclaire/popcorn-mcp"]
env = { EVM_PRIVATE_KEY = "<EVM_PRIVATE_KEY>" }
# codex mcp add popcorn --env EVM_PRIVATE_KEY='<EVM_PRIVATE_KEY>' -- npx -y @violetclaire/popcorn-mcp~/.cursor/mcp.json
{
"mcpServers": {
"popcorn": {
"command": "npx",
"args": [
"-y",
"@violetclaire/popcorn-mcp"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"popcorn": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@violetclaire/popcorn-mcp"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"popcorn": {
"command": "npx",
"args": [
"-y",
"@violetclaire/popcorn-mcp"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"popcorn": {
"command": "npx",
"args": [
"-y",
"@violetclaire/popcorn-mcp"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"popcorn": {
"command": "npx",
"args": [
"-y",
"@violetclaire/popcorn-mcp"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
}
}
}
}Remote
claude mcp add --transport http popcorn https://popcorn-tain-verify-mcp-v2.violetherod.workers.dev/mcp~/.codex/config.toml
[mcp_servers.popcorn]
url = "https://popcorn-tain-verify-mcp-v2.violetherod.workers.dev/mcp"
# codex mcp add popcorn --url https://popcorn-tain-verify-mcp-v2.violetherod.workers.dev/mcp~/.cursor/mcp.json
{
"mcpServers": {
"popcorn": {
"url": "https://popcorn-tain-verify-mcp-v2.violetherod.workers.dev/mcp"
}
}
}.vscode/mcp.json
{
"servers": {
"popcorn": {
"type": "http",
"url": "https://popcorn-tain-verify-mcp-v2.violetherod.workers.dev/mcp"
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"popcorn": {
"httpUrl": "https://popcorn-tain-verify-mcp-v2.violetherod.workers.dev/mcp"
}
}
}claude_desktop_config.json · Customize › Connectors › Add custom connector
{
"mcpServers": {
"popcorn": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://popcorn-tain-verify-mcp-v2.violetherod.workers.dev/mcp"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"popcorn": {
"url": "https://popcorn-tain-verify-mcp-v2.violetherod.workers.dev/mcp"
}
}
}Environment variables
EVM_PRIVATE_KEY
Replace the placeholders with your own credentials and keep them out of version control.