# Encryption

**Canonical:** https://apis.io/providers/encryption/  
**Website:** https://apievangelist.com  
**APIs profiled:** 0

An index and topic collection covering encryption services, key management systems (KMS), hardware security modules (HSM), envelope encryption, end-to-end encryption SDKs, certificate management, and code/data signing. This topic gathers the cryptographic primitives, managed services, and open-source libraries that protect data at rest and in transit across cloud, mobile, web, and supply-chain workloads. It includes managed KMS offerings (AWS KMS, Google Cloud KMS, Azure Key Vault), HSM and enterprise key management platforms, secrets and configuration encryption tooling (HashiCorp Vault, Doppler, SOPS), code- and artifact-signing infrastructure (Sigstore, Cosign, Notary, TUF), end-to-end encrypted messaging protocols (Signal, Matrix), and certificate authority APIs (Let's Encrypt, DigiCert, Amazon Private CA). Distinct from the broader Security topic, this collection focuses specifically on cryptography, keys, certificates, and signing.

## Kin Score — 9.6 / 100 (minimal)

Scored 2026-10-17 under rubric 0.24.0. Trend: flat (+0.1 from 9.5).

| Facet | Score |
|---|---|
| Discoverability | 48.2 |
| Contract Quality | 14.7 |
| Contract Governance | 0.0 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 9.5 |
| Access Clarity | 0.0 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 4.9 (matched via fallback).

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Use cases (7)

- **Encrypting Data at Rest in the Cloud** — Applications use cloud KMS APIs to encrypt database fields, S3 objects, and disk volumes with envelope encryption, ensuring keys never leave a managed boundary while data cipher...
- **TLS Termination and Certificate Renewal** — Web platforms automate TLS certificate provisioning and rotation through ACME (Let's Encrypt) or enterprise CA APIs (DigiCert, Amazon Private CA), keeping in-transit encryption ...
- **Software Supply Chain Signing** — Build pipelines sign container images and binaries with Sigstore/Cosign, anchoring artifacts to transparency logs so downstream consumers can verify provenance before deploying.
- **End-to-End Encrypted Messaging and Collaboration** — Messaging applications integrate Signal protocol, Matrix Olm/Megolm, or MLS to provide forward-secret encryption where neither the service operator nor an attacker can read mess...
- **Secrets Management for CI/CD** — HashiCorp Vault, Doppler, and SOPS encrypt secrets used across CI/CD pipelines, source control, and runtime environments, integrating with cloud KMS for sealed storage and audit...
- **Tokenization and Payment Cryptography** — Payment processors and PCI workloads use services like AWS Payment Cryptography and Apple Pay tokenization to perform PIN translation, card encryption, and EMV operations under ...
- **Workload Identity and Zero-Trust Cryptography** — SPIFFE/SPIRE issue short-lived, cryptographically verifiable workload identities (SVIDs) so services can mutually authenticate without long-lived secrets across multi-cloud envi...

## Tags

Encryption, KMS, HSM, Cryptography, Key Management, Certificate Management, Code Signing, End-to-End Encryption

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/encryption/). Scores are computed from the provider's own public artifacts under a published rubric.