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Axes · decision quality

DQL — Decision Quality Layer

Scores a proposed action on five axes — intent, scope, risk, consistency, and reversibility — so weak or overreaching decisions surface before they execute. Humans use the app; agents hit the same API.

Open app — pricing Get trial & packs API root Pricing
App app.thoughtproof.ai
API host dql.thoughtproof.ai
Endpoint POST /dql/verify
Auth X-DQL-Key (dqlk_) or x402 USDC
Payment Stripe packs / trial on app · x402 USDC on Base for agents
Axes intent · scope · risk · consistency · reversibility
MCP Desktop / CLI stdio · thoughtproof-mcp@0.3.2 · verify_before_action / verify_decision

Call example

curl -X POST https://dql.thoughtproof.ai/dql/verify \
  -H "Content-Type: application/json" \
  -H "X-DQL-Key: dqlk_your_key_here" \
  -d '{"mandate":"Book a morning BER–FCO flight on July 20.","proposed_action":"Book LH1234 MUC–FCO 09:15 on July 20.","reasoning":"Earliest morning option in the search results."}'

Live POST /dql/verify returns HTTP 402 without an X-DQL-Key or an x402 payment. Agents can settle the same path with x402 (USDC) on Base. Trial and packs stay on the app.

MCP / agents

Desktop / CLI stdio — Node.js 18+ and a host with stdio MCP support (Cursor, Claude Desktop, and similar). Add the published connector and call verify_decision before the action. 

{
  "mcpServers": {
    "thoughtproof": {
      "command": "npx",
      "args": ["-y", "thoughtproof-mcp@0.3.2"],
      "env": {
        "DQL_API_KEY": "dqlk_your_key_here"
      }
    }
  }
}

Default spend / checkout language routes to DQL. Auto-route can also pick Sentinel for other irreversible exits — a DQL-only key is not enough on that path. mode=sentinel needs SENTINEL_API_KEY.

Package: thoughtproof-mcp@0.3.2 on npm. Direct API calls stay on POST /dql/verify above.

The five axes

App first

Start at app.thoughtproof.ai/pricing — trial credits, prepaid packs, and account billing live there. Agents can also pay per call with USDC (x402) on Base against the same POST /dql/verify endpoint.

Longer product narrative: The Decision Quality Layer.

Related

Typical agent exit: Sentinel. Plan cascade: PLV. Adversarial panel: RV.