# Avalara AvaTax vs Quaderno (slim)

> Avalara AvaTax scores 68.8 (B) on agent readiness against Quaderno's 59.5 (C), and leads in 5 of 7 scored categories. Quaderno leads on reliability. Both do tax calculate. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/avalara-vs-quaderno.md (~2,200 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/avalara-vs-quaderno.json · canonical https://www.anchorterminal.com/compare/avalara-vs-quaderno
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Avalara AvaTax scores 68.8 (B) on agent readiness against Quaderno's 59.5 (C), and leads in 5 of 7 scored categories. Quaderno leads on reliability. Both do tax calculate.

- Avalara AvaTax: B 68.8, rank #172 of 722 · https://www.anchorterminal.com/tools/avalara.min.md
- Quaderno: C 59.5, rank #427 of 722 · https://www.anchorterminal.com/tools/quaderno.min.md
- Avalara AvaTax, good for An agent that must calculate and record US sales tax at address level, with VAT and GST in other countries, and hand the records to filing. Ahead on Schema & documentation, 85 against 77; Agent ergonomics, 84 against 56; Security & auth, 65 against 39; Maintenance & community, 79 against 28.
- Quaderno, good for An agent working for a SaaS, digital-goods or e-commerce seller that needs a tax rate at checkout, a record of each sale with location evidence, and compliant invoices, including Spanish Verifactu and TicketBAI. Ahead on Reliability, 91 against 62.

| Category | Avalara AvaTax | Quaderno |
| --- | --- | --- |
| Reliability (16%) | 62 | 91 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 85 | 77 |
| Agent ergonomics (13%) | 84 | 56 |
| Security & auth (14%) | 65 | 39 |
| Payments & pricing (10%) | 30 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 79 | 28 |
| Transparency & trust (7%) | 79 | 76 |

| Fact (where they differ) | Avalara AvaTax | Quaderno |
| --- | --- | --- |
| Vendor | Avalara, Inc. | Recrea Systems, SL |
| Hosted endpoint | `https://rest.avatax.com/api/v2` | `https://quadernoapp.com/api` |
| Transports | HTTP, Streamable HTTP | HTTP |
| Licence | Proprietary service under the Avalara Service Terms. The SDKs on GitHub are Apache-2.0. The MCP repository holds a README only, with no licence file | Proprietary service under Quaderno's terms of service. The Ruby library on GitHub is MIT |
| Tools exposed | 10 | none |
| MCP registry | `com.avalara/avatax` | not listed |
| Last release | 2026-09-16 | 2026-07-04 |
| Terms last updated | 2023-05-01 | 2026-09-15 |
| Privacy policy last updated | 2022-08-08 | 2024-05-16 |
| Terms restrict automated access | not found in the text | yes |
| Terms or service can change without notice | not found in the text | yes |
| Popularity | 5 stars, 331k npm/wk, 38k PyPI/wk | 15 stars |