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POPCORN Witness Verifier

io.github.violetclaire/popcorn-tain-verifier · v2.0.1

MCP server for verifying receipts: POPCORN-WITNESS/2.0 signature, digest, and time. Free, read only.

Connect Remote server

Terminal
claude mcp add --transport http popcorn-tain-verifier https://popcorn-tain-verify-mcp-v2.violetherod.workers.dev/mcp
~/.cursor/mcp.json
{
  "mcpServers": {
    "popcorn-tain-verifier": {
      "url": "https://popcorn-tain-verify-mcp-v2.violetherod.workers.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "popcorn-tain-verifier": {
      "type": "http",
      "url": "https://popcorn-tain-verify-mcp-v2.violetherod.workers.dev/mcp"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://popcorn-tain-verify-mcp-v2.violetherod.workers.dev/mcp

Tools 1 found in our last check

  • popcorn_verify_v2

    Verify a POPCORN-WITNESS/2.0 receipt against a caller-computed SHA-256 payload digest, nonce, and independently trusted issuer keys. Send only the digest, never private payload bytes. Caller-supplied keys do not establish issuer identity. This does not prove on-chain settlement,…

Details

Endpointhttps://popcorn-tain-verify-mcp-v2.violetherod.workers.dev/mcp (Streamable HTTP)
First published18 Oct 2026
Last updated18 Oct 2026
Registry nameio.github.violetclaire/popcorn-tain-verifier

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