# Check vs Paychex (slim)

> Check scores 67.5 (B) on agent readiness against Paychex's 44.8 (E), and leads in every scored category. Both do payroll employees. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/check-payroll-vs-paychex.md (~2,150 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/check-payroll-vs-paychex.json · canonical https://www.anchorterminal.com/compare/check-payroll-vs-paychex
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Check scores 67.5 (B) on agent readiness against Paychex's 44.8 (E), and leads in every scored category. Both do payroll employees.

- Check: B 67.5, rank #208 of 722 · https://www.anchorterminal.com/tools/check-payroll.min.md
- Paychex: E 44.8, rank #666 of 722 · https://www.anchorterminal.com/tools/paychex.min.md
- Check, good for A software platform that wants to sell US payroll inside its own product and can sign a partnership, with Check handling tax calculation, money movement and filings. Ahead on Reliability, 80 against 41; Schema & documentation, 78 against 66; Agent ergonomics, 83 against 54; Security & auth, 74 against 58; Payments & pricing, 5 against 0; Maintenance & community, 72 against 26; Transparency & trust, 62 against 54. Also A hosted endpoint, with nothing to install.
- Paychex, good for A software partner with shared customers on Paychex Flex that needs to sync workers, pay rates, direct deposits and tax setup, or to send hours and earnings into pay entry.

| Category | Check | Paychex |
| --- | --- | --- |
| Reliability (16%) | 80 | 41 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 78 | 66 |
| Agent ergonomics (13%) | 83 | 54 |
| Security & auth (14%) | 74 | 58 |
| Payments & pricing (10%) | 5 | 0 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 72 | 26 |
| Transparency & trust (7%) | 62 | 54 |

| Fact (where they differ) | Check | Paychex |
| --- | --- | --- |
| Vendor | Check Technologies, Inc. | Paychex, Inc. |
| Hosted endpoint | `https://api.checkhq.com` | no (local only) |
| Auth | OAuth or key | OAuth |
| Licence | Proprietary service under Check's terms of service and partner agreement. The MCP server and CLI on GitHub are MIT | Proprietary service. Public use is under the Paychex User Terms of Use. Partner terms aren't published |
| Read-only variant documented | yes | no |
| llms.txt | yes | no |
| Last release | 2026-10-07 | 2026-08-20 |
| Terms last updated | 2021-09-03 | no date given |
| Privacy policy last updated | 2024-04-18 | 2026-06-01 |
| Customer content may train models | not found in the text | yes |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 18 stars | none |