check_breach
shallowio.github.nzdsf2-gif/relayshield-free-mcp · Verify this server
Checks whether an email address appears in known data breaches. Provide `email`. Returns the number of breaches found with the named sources behind each; a count of zero means no breaches were found in the corpus, not that the address is safe. Read-only: it only looks up breach records. Requires the RELAYSHIELD_API_KEY environment variable; without it, the tool returns setup instructions instead of calling the API.
1 trials · measured today
check_breach scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against io.github.nzdsf2-gif/relayshield-free-mcp, measured 20 Oct 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
- Input schema
- not declared
- Output schema
- not declared
- Side-effect classification
- unclassified
Score history
| Day | Score | Tier | Methodology |
|---|---|---|---|
| 2026-10-20 | 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/ec462caa-be0a-436f-aa8a-d869c6bb9836)