bots.st/popcorn-mcp
POPCORN MCP
Witness and verify signed time receipts
2431 ms
answered our call
- State
- Answered
- Protocol
- MCP 2025-06-18
- Tools listed
- 7
- Answered
- 3 of the last 3 calls
How to reach it
- MCP, HTTP
https://767-2676.com/mcp - npm
npx -y @violetclaire/popcorn-mcpReleased 4 Nov 2026, version 0.1.5
What it can do
| Tool | What it says it does |
|---|---|
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_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 independently establish issuer identity. |
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-signed payment_signature. No server wallet or private key. No automatic retry. Verify evidence and… |
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 signature grants no authority. |
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 grant authority, establish current time, or verify settlement on chain. |
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, and caller-signed payment_signature. Keep work and wallet keys local. No automatic retry. Evidence… |
In its maker's words
Witness layer for agents: signed receipts binding a fingerprint to a witnessed time. $0.001.
- Website
- 767-2676.com/agents
- Source
- github.com/violetclaire/popcorn-temporal-anchor
- Publisher
- violetclaire (2 listings in the registry)
- Listed from
- the official MCP Registry as
io.github.violetclaire/popcorn-mcp - Version
- 0.1.6, updated 26 Oct 2026
- Kinds of work
- Security and trust, AI models and agent tools
The domain it lives on
- 767-2676.com
- registered 25 Aug 2026 (2 months ago), at Cloudflare, Inc.
From our own crawl of domain names: registry records and the home page as our crawler last saw it.
Every call we made
| When | What happened | Time |
|---|---|---|
| Answered | 2431 ms | |
| Answered | 2385 ms | |
| Answered | 1344 ms |
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