cMCP, deny an AI agent's tool call and get a signed receipt
Details
- External ID
- 49172545
- Source
- HN
- Company
- —
- Product
- cMCP, deny an AI agent's tool call and get a signed receipt
- Website domain
- github.com
- Launched
- Aug. 4, 2026
- Cohort
- —
- Upvotes
- 9
- Upvotes percentile
- 0.5309139784946236
- Tags
- —
- Fetched at
- Sept. 10, 2026, 5:32 a.m.
- Updated at
- Sept. 10, 2026, 5:32 a.m.
Enrichment
- Theme
- ai cybersecurity and penetration testing
- Vertical
- Security
- Function
- Compliance & governance
- Audience
- Developer
- AI stance
- AI feature
- Project type
- Commercial product
- Normalized one-liner
- tool call verification for AI agents
- Manually corrected
- False
Could you build this?
Yes Implementing an MCP proxy/middleware that inspects tool calls, allows denial policies, and returns a cryptographically signed receipt (using standard HMAC/Ed25519) is a concise, well-scoped protocol wrapper.
Discussion
3 comments analyzed.
Concerns raised: AI-generated content violates community guidelines
Competitors
Other products that read as similar to this one — 317 launches clear the similarity bar, closest 8 shown.
Attention rank: #147 of 318 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 277 days after the earliest competitor.
- receipt-protocol · github · 2026-09-26 · 15 upvotes · similarity 0.50
- Authorize MCP tool calls without giving agents the credentials · hn · 2026-09-14 · 7 upvotes · similarity 0.49
- AgentMint · hn · 2026-04-09 · 5 upvotes · similarity 0.49
- Sealed evidence record of an AI agent run · hn · 2026-08-18 · 5 upvotes · similarity 0.47
- Scan your AI agents for dangerous capabilities · hn · 2026-07-06 · 44 upvotes · similarity 0.47
- Clawvisor — The Authorization Layer for AI Agents · yc · 2026-05-07 · 13 upvotes · similarity 0.45
- AI-AGENT-CERTIFICACION · github · 2026-09-16 · 6 upvotes · similarity 0.44
- heimdall-pentest · github · 2026-09-14 · 67 upvotes · similarity 0.44
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a compliance & governance tool for Media & entertainment yet.