# Fonoa vs Kintsugi (slim)

> Kintsugi scores 60.7 (C) on agent readiness against Fonoa's 51.7 (D), and leads in every scored category. Both do tax calculate. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/fonoa-vs-kintsugi.md (~2,250 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/fonoa-vs-kintsugi.json · canonical https://www.anchorterminal.com/compare/fonoa-vs-kintsugi
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Kintsugi scores 60.7 (C) on agent readiness against Fonoa's 51.7 (D), and leads in every scored category. Both do tax calculate.

- Fonoa: D 51.7, rank #575 of 722 · https://www.anchorterminal.com/tools/fonoa.min.md
- Kintsugi: C 60.7, rank #392 of 722 · https://www.anchorterminal.com/tools/kintsugi.min.md
- Fonoa, good for An agent working for a company that already has a Fonoa contract and needs tax ID validation, VAT or GST calculation, or e-invoice reporting across many countries through one API. Also No incidents deducted, where Kintsugi loses 3 points for them.
- Kintsugi, good for An agent working for a seller that already has Kintsugi Premium and wants estimates, transaction sync, exemptions, nexus, registrations and filing status through one API, or read-only answers about an account through the OAuth MCP server. Ahead on Reliability, 73 against 66; Schema & documentation, 87 against 68; Agent ergonomics, 75 against 64; Security & auth, 52 against 47; Payments & pricing, 13 against 3; Maintenance & community, 78 against 49; Transparency & trust, 60 against 48.

| Category | Fonoa | Kintsugi |
| --- | --- | --- |
| Reliability (16%) | 66 | 73 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 68 | 87 |
| Agent ergonomics (13%) | 64 | 75 |
| Security & auth (14%) | 47 | 52 |
| Payments & pricing (10%) | 3 | 13 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 49 | 78 |
| Transparency & trust (7%) | 48 | 60 |

| Fact (where they differ) | Fonoa | Kintsugi |
| --- | --- | --- |
| Vendor | Fonoa Technologies Limited | Kintsugi AI, Inc. |
| Hosted endpoint | `https://api.fonoa.com` | `https://api.trykintsugi.com` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| Licence | Proprietary service. The API contract is not published. The public Terms of Service took effect on 14 May 2020 and name older seller sites | Proprietary service under the Kintsugi Terms of Service. The Python SDK repository is MIT |
| Tools exposed | none | 55 |
| Read-only variant documented | no | yes |
| Last release | 2026-10-02 | 2026-10-07 |
| Terms last updated | no document linked | 2026-09-29 |
| Privacy policy last updated | no date given | 2025-04-13 |
| Customer content may train models |  | yes |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | yes |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | yes |
| Popularity | none | 71 npm/wk, 10 PyPI/wk |