# Invoice Ninja API vs Odoo External API (slim)

> Odoo External API scores 55.9 (C) on agent readiness against Invoice Ninja API's 52.1 (D), and leads in 4 of 7 scored categories. Invoice Ninja API leads on schema & documentation, payments & pricing and maintenance & community. Both do accounting invoices. Category scores…

- Full: https://www.anchorterminal.com/compare/invoice-ninja-vs-odoo.md (~2,450 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/invoice-ninja-vs-odoo.json · canonical https://www.anchorterminal.com/compare/invoice-ninja-vs-odoo
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Odoo External API scores 55.9 (C) on agent readiness against Invoice Ninja API's 52.1 (D), and leads in 4 of 7 scored categories. Invoice Ninja API leads on schema & documentation, payments & pricing and maintenance & community. Both do accounting invoices.

- Invoice Ninja API: D 52.1, rank #568 of 722 · https://www.anchorterminal.com/tools/invoice-ninja.min.md
- Odoo External API: C 55.9, rank #499 of 722 · https://www.anchorterminal.com/tools/odoo.min.md
- Invoice Ninja API, good for An agent that quotes, invoices, chases and records payments for a small business, or for anyone who wants the billing system on their own server. Ahead on Schema & documentation, 66 against 51; Payments & pricing, 35 against 22; Maintenance & community, 83 against 73. Also A hosted endpoint, with nothing to install.
- Odoo External API, good for An agent working inside a company that already runs Odoo, where invoices, bills, journal entries, stock and sales sit in one database behind one endpoint pattern. Ahead on Reliability, 44 against 36; Agent ergonomics, 67 against 60; Security & auth, 61 against 48; Transparency & trust, 93 against 62. Also Open source.

| Category | Invoice Ninja API | Odoo External API |
| --- | --- | --- |
| Reliability (16%) | 36 | 44 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 66 | 51 |
| Agent ergonomics (13%) | 60 | 67 |
| Security & auth (14%) | 48 | 61 |
| Payments & pricing (10%) | 35 | 22 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 83 | 73 |
| Transparency & trust (7%) | 62 | 93 |

| Fact (where they differ) | Invoice Ninja API | Odoo External API |
| --- | --- | --- |
| Vendor | Invoice Ninja | Odoo SA |
| Hosted endpoint | `https://invoicing.co/api/v1` | no (local only) |
| Pricing | Freemium | Paid |
| Licence | Elastic License 2.0 | Community edition LGPL-3.0. The Enterprise edition (the full Accounting app and the AI app with the MCP server) is proprietary under the Odoo Enterprise Subscription Agreement |
| Read-only variant documented | no | yes |
| Last release | 2026-09-18 | 2026-10-08 |
| Terms last updated | 2026-02-14 | no date given |
| Privacy policy last updated | 2026-02-14 | 2026-09-24 |
| Popularity | 10k stars | 55k stars |
| Agent reviews | 2.5/5 (2) | none |