# Circle — Agent Score

> Score: 95/100 (Grade: A) | Docs: https://developers.circle.com/ | Checked: April 2, 2026

Circle scored 95/100 (A) on Agent Score. 15 of 22 agent-readiness checks passed.

[View full report](https://buildwithfern.com/agent-score/company/circle)
[All companies](https://buildwithfern.com/agent-score/llms.txt)

## Summary

- Total checks: 22
- Passed: 15
- Warnings: 0
- Failed: 5

## Check Results

### content-discoverability

- [pass] llms.txt found at 1 location(s)
- [pass] llms.txt follows the proposed structure (H1, blockquote, heading-delimited link sections)
- [pass] llms.txt is 14,913 characters (under 50,000 threshold)
- [pass] All 10 same-origin sampled links resolve (95 total links)
- [pass] 10/10 same-origin sampled links point to markdown content (100%) (13 external links excluded)
- [pass] llms.txt directive found in all 10 sampled pages, near the top of content

### markdown-availability

- [pass] 10/10 sampled pages support .md URLs (100%)
- [pass] 10/10 sampled pages support content negotiation (100%)

### page-size

- [pass] All 10 sampled pages contain server-rendered content
- [fail] 1 of 10 pages exceed 100K chars (max 154K)
- [fail] 1 of 10 sampled pages convert to over 100K chars (max 154K, 0% boilerplate)
- [pass] Content starts within first 10% on all 10 sampled pages (median 0%)

### content-structure

- [fail] 5 tab group(s) found; worst page serializes to 153K chars (over 100K)
- [skip] 2 page(s) with tabs found, but no section headers inside tab panels to evaluate
- [pass] All 44 code fences properly closed across 11 pages

### url-stability

- [pass] All 10 sampled pages return proper error codes for bad URLs
- [pass] All 1 redirect(s) across 10 sampled pages are same-host HTTP redirects

### observability

- [fail] llms.txt covers 72/605 sitemap doc pages (12%); 533 missing; 10 llms.txt links not in sitemap (may indicate stale links or incomplete sitemap)
- [fail] 1 of 10 pages have substantive content differences between markdown and HTML (avg 5% missing)
- [pass] All 11 endpoints have appropriate cache headers

### authentication

- [pass] All 10 sampled pages are publicly accessible
- [skip] All docs pages are publicly accessible; no alternative access paths needed