ChargeReady

simonwillison.net

30

Not ready

Mode API / developer tools. AEO/GEO makes you citable. 402 makes you chargeable. The number does not say if the site is famous.

simonwillison.net scores 30 (Not ready). Agents can read this origin; they cannot pay you. No HTTP 402 / Pay-per-Crawl signal. Named gaps: 16.

Low estimate: from $44/month

Conservative floor from this scan. Not the complete range.

The complete range, every named gap, and the concrete fixes are in Completo.

An a priori estimate. If you have analytics or Search Console, paste visits/month. The report shows the calculation.

An a priori estimate. If you have Search Console or analytics, paste visits/month. We do not ask for a password.

10 pages requested.

Completo names every fail, the prompts for your coding agent, and the complete $ range.

If you will implement this week. Extra files, not Completo.

We leave robots, 402 and llms for simonwillison.net: Pay-per-Crawl on Cloudflare, charging guide, and 1 re-scan round. No login to your account.

Wizard sample (one file). The rest is in Completo or Fix Pack. · Share score · · AEO/GEO guide for this site

Mode changes the weights. If the detector was wrong, measure again.

What this score means

Simon Willison's site scores 30, which means it's not ready for 402 charging. The core problem is zero commerce signals: no simulated 402 response, no price headers, no machine-readable offer, and no x402 cobro signals. That's the gap that blocks any billing flow. The quick fixes

A slice of the analysis. Concrete fixes stay in Completo. Fix Pack is extra.

Named gaps

  1. 1. Markdown negotiation

    1. Fix and prompt: in Completo

  2. 2. Directives for AI bots

    2. Fix and prompt: in Completo

  3. 3. Rules by bot type

    3. Fix and prompt: in Completo

13 more named in Completo

Pillars

Ask about this score

AI advisor. Uses facts from the scan. Does not ask for hosting access.