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Spend approval gate for AI agents: budget caps, HITL thresholds, signed audit hash.

Chrome breakpoint debugging MCP server for inspecting runtime values and stepping through code

MCP bridge between Chromium browsers (Arc, Vivaldi, Brave) and Claude Code: browser automation

MCP server for generating Chromium-style QR codes with optional Dino logo or custom center image

Verify a photo's capture time and provenance: C2PA validation, EXIF/XMP, and pixel forensics.

Cross-protocol agent payments hub. x402, MPP, L402/Lightning. 1551 services indexed.

13-model stock valuation engine for AI agents - fair values for 5,900+ US stocks, updated daily.

MCP tools for CRUMB artifacts and Logisim-evolution analysis and non-interactive simulation.

CISA KEV with BOD 26-04 deadlines, SSVC prioritization, and the ICS advisory corpus (CSAF). Keyless.

A growing Citadel of stack-specific docs, served as MCP tools for AI coding agents.

Check what Perplexity, Claude, ChatGPT, Gemini, and Google AI Overviews cite for any query.

Inject, parse, and strip [N] citation markers in RAG outputs.