isbn_validate
shallowcom.temsor/api · Verify this server
Validates ISBN-10 and ISBN-13 check digits and converts between them when the 978 prefix allows it. Catalogue and retail systems still mix ISBN-10 and ISBN-13. This checks the ISBN-10 weighted mod-11 digit (X allowed) and the ISBN-13 / EAN-13 alternating 1–3 check digit. When an ISBN-10 is valid it returns the ISBN-13 form (978 + body + new check). ISBN-13 values starting with 978 convert back to ISBN-10; 979 prefixes have no ISBN-10 equivalent and isbn10 stays null. Hyphens and spaces are stripped. A valid checksum is not proof the title exists in a national bibliography.
1 trials · measured 41 days ago
isbn_validate scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against com.temsor/api, measured 11 Sept 2026 under methodology v0.2.0. Every measured component scored 100.
Component breakdown
| Component | Weight | Value |
|---|---|---|
| Reliability | 35% | not applicable |
| Schema integrity | 25% | 100.0 |
| Failure behaviour | 15% | not applicable |
| Latency | 15% | not applicable |
| Concurrency | 10% | not applicable |
Tool details
- Transport
- remote
- Credential class
- self-provisionable
- Category
- Legal & government
- Input schema
- not declared
- Output schema
- not declared
- Side-effect classification
- unclassified
Score history
| Day | Score | Tier | Methodology |
|---|---|---|---|
| 2026-09-11 | 100.0 | shallow | v0.2.0 |
Probe evidence
| Probe | Outcomes |
|---|---|
| schema_integrity | pass: 1 |
Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.
Embed this score
Available for every tool, scored or not — not a verification perk. Always links back to this page.
[](https://vouch.tools/tools/9b070910-058e-4f7f-8ac5-4bc45a0a087b)