# Certificate Threat Intelligence API — Spectra Intelligence

> Spectra Intelligence Certificate Threat Intelligence APIs for investigating code signing certificates, finding signed samples, and detecting certificate misuse.

The Certificate Threat Intelligence APIs help security teams investigate code signing certificates, identify samples signed with specific certificates, and detect impersonation attempts using compromised or malicious certificates.

## Common Use Cases

### Find samples signed with a certificate

- **[Certificate index (TCA-0501)](tca-0501.md)** - Get a list of files signed with a specific certificate thumbprint, with optional filtering by classification status.

### Analyze certificate reputation

- **[Certificate analytics (TCA-0502)](tca-0502.md)** - Get certificate reputation data including sample counts by classification, blacklist/whitelist status, threat level, and certificate chain of trust.

### Search for certificates by name

- **[Certificate thumbprint search (TCA-0503)](tca-0503.md)** - Find certificate thumbprints by searching for common names or partial matches using wildcards.

## All Certificate Threat Intelligence APIs


