mcp server
mettle-mcp
Inverse Turing test — let an AI agent verify its own substrate and earn a credential.
Description as published by the maintainer. Source
- version 0.3.0
- active
active — Most recent push to the repository was 2026-07-23.
Signals
These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.
| Signal | Value | What it measures | Window | Observed | Source |
|---|---|---|---|---|---|
| GitHub stars | 0 | Number of GitHub accounts that bookmarked this repository since it was created. It is a bookmark count, not installs, not active users and not quality. | cumulative, all time | GitHub | |
| Last commit | 2026-07-23 | Date of the most recent push to any branch. This is the strongest cheap indicator of whether the project is still maintained. | point in time | GitHub | |
| Open issues | 1 | Open issues plus open pull requests, as GitHub counts them together. A high number can mean an active project or an abandoned one. | as of fetch | GitHub | |
| Latest published version | 0.3.0 | Latest version string the maintainer published to the registry. | as of fetch | Model Context Protocol | |
| Registry record last updated | 2026-07-23 | When the registry record was last updated by its maintainer. | point in time | Model Context Protocol | |
| License | Apache-2.0 | Licence GitHub detected in the repository. Detection can be wrong; the LICENSE file is authoritative. | as of fetch | GitHub | |
| First listed in the MCP Registry | 2026-07-23 | Date this server was first published to the official MCP Registry. Not a usage or quality measure. | point in time | Model Context Protocol | |
| repository status | active | The repository exists on GitHub and is not archived. This says nothing about how recently it was worked on. | as of fetch | GitHub |
Where to get it
Related, by what their authors tagged them
-
FoundryNet — Industrial Machine Intelligence
— last commit 2026-07-19, shares machine-identity
Cross-OEM industrial machine intelligence: identity, normalization, automation, attestation.
-
andon
— last commit 2026-08-04, shares ai-verification
Deterministic verification for AI-generated analysis: run a spec, inspect or diff a workbook
-
Agent360 Browser MCP
— last commit 2026-07-29, shares captcha
Give AI agents control of your real, logged-in Chrome. Chrome extension + MCP server, 34 tools.
-
2Captcha MCP
— last commit 2026-07-20, shares captcha
Full 2Captcha API (43 tools) for Claude Code: 31 captcha solvers + management + webhook.
-
Actenon Kernel
— last commit 2026-07-26, shares ai-safety, open-source
Verify consequential AI actions before they execute.
-
io.github.CSOAI-ORG/watermarking-authenticity-mcp
— last commit 2026-07-26, shares ai-safety, open-source
EU AI Act Article 50 watermarking + C2PA 2.1 compliance. NEW: 2 December 2026 deadline (compress...
-
ai.marchward/mcp-server
— last commit 2026-07-01, shares agentic-ai, ai-safety
Runtime authority for AI agents: credential mediation, spend cap, approval gates, audit log.
-
io.github.ariffazil/aaa-mcp
— last commit 2026-08-06, shares agentic-ai, ai-safety
Constitutional AI Governance with 13 enforced floors (F1-F13) and tri-witness consensus for LLMs.
-
arifOS — Constitutional AI Kernel
— last commit 2026-08-06, shares agentic-ai, ai-safety
Constitutional AI kernel with 13 MCP tools, 888_JUDGE verdict pipeline, and VAULT999 ledger.
-
io.github.ariffazil/arifos-mcp
— last commit 2026-08-06, shares agentic-ai, ai-safety
Constitutional AI governance server with 5-organ Trinity and enforced floors F1-F13.
These share tags the maintainers applied themselves, such as machine-identity, ai-verification, captcha, ai-safety. Common tags like "mcp" or "ai" are ignored for this: agreeing with six hundred other projects is not a similarity.
This is not a recommendation and not a test result. It is a map of what the authors said their work is about.
Also from creed-space
-
io.github.Creed-Space/creedspace-mcp-server
— last commit 2026-08-06
Constitutional-AI safety guardrails for any LLM — personas, constitutions, adjudication.
-
io.github.Creed-Space/vcp-mcp
— last commit 2026-07-23
Value Context Protocol tools: VCP/I tokens, CSM1 codes, VCP-Lite, and context encoding.
How the author describes it
Topics the maintainer set on GitHub: agentic-ai, ai-agents, ai-safety, ai-trust, ai-verification, captcha, inverse-turing-test, machine-identity, open-source, python.
This record as data
Every field on this page, with its source and observation date, is in the catalog JSON. Fetch the whole kind at once instead of parsing this HTML.
GET /api/v1/entries/mcp_server.json