POPCORN MCP

Ingested from the official MCP Registry

FastDrop pulled this entry from the official MCP Registry as io.github.violetclaire/popcorn-mcp and probed the endpoint. The maker did not submit it, so the outbound link is not endorsed and the description is not theirs.

If this is your server, claim the listing to edit it and take ownership. The registry index lists everything else still awaiting a probe.

Tools this endpoint exposes

Read directly from the endpoint on 24 Oct 2026. Not supplied by the maker.

• popcorn_sample

  Check the public October 14 TAIN 2.0 receipt and a changed-digest control. No inputs, wallet, payment, or outbound request. Historical evidence, not a fresh clock. Bundled sample keys do not independe

• popcorn_catalog

  Read the live catalog, offer, and published verification keys. Free; no payment.

• popcorn_hash

  Hash public bytes on this remote server. Submitted text reaches the server: hash private work locally instead. Free; no onward request or payment.

• popcorn_verify

  Verify a time or witness receipt using caller-trusted JWKS and expected values. Digest-only for witness payloads. No outbound request or payment. Caller keys do not establish issuer identity; a signat

• popcorn_verify_v2

  Verify TAIN 2.0 evidence against keys fetched from the fixed POPCORN issuer URL. Caller jwks is replaced with published keys, including predecessors. Send a digest, never private work. Free; does not

• popcorn_time

  Request signed current-time evidence. Defaults to a free unpaid 402 challenge. A fresh receipt costs exactly $0.001 USDC on Base. Payment requires owner approval, approve_payment:true, and a caller-si

• popcorn_witness

  Witness a SHA-256 digest and fresh caller nonce at a time. Defaults to a free unpaid 402 challenge. One fresh receipt costs exactly $0.001 USDC on Base; requires owner approval, approve_payment:true,