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Evidence layer for agent commerce: signed receipts, verification, dispute evidence envelopes.
npx @getmcp/cli add io.github.tersignhq/evidenceRequires Node.js 18+. Community-contributed server. Review source before installing.
TERSIGN_SELLER_KEY0x-prefixed private key the seller signs receipts with
Config file: ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"io.github.tersignhq/evidence": {
"command": "npx",
"args": [
"-y",
"tersign"
],
"env": {
"TERSIGN_SELLER_KEY": "",
"TERSIGN_ISSUER_NAME": "",
"TERSIGN_ISSUER_JURISDICTION": "",
"TERSIGN_ISSUER_TAX_ID": "",
"TERSIGN_LEDGER_URL": "",
"TERSIGN_LEDGER_API_KEY": "",
"TERSIGN_LEDGER_SELLER_ID": ""
}
}
}
}