# Amazon QLDB

**Canonical:** https://apis.io/providers/amazon-qldb/  
**Website:** https://aws.amazon.com/qldb/  
**APIs profiled:** 3

Amazon Quantum Ledger Database (QLDB) is a fully managed ledger database that provides a transparent, immutable, and cryptographically verifiable transaction log. QLDB tracks each and every application data change and maintains a complete and verifiable history of changes over time, making it ideal for systems of record where data integrity and auditability are critical.

## Kin Score — 45.2 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 45.2).

| Facet | Score |
|---|---|
| Discoverability | 72.2 |
| Contract Quality | 67.6 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 26.3 |
| Developer Ergonomics | 31.0 |
| Commercial Clarity | 51.3 |
| Access Clarity | 51.3 |

## Agent readiness — 38.9 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | partial |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (3)

- **Amazon QLDB Journal S3 Exports API** — The Journal S3 Exports API from Amazon QLDB — 1 operation(s) for journal s3 exports.
- **Amazon QLDB Ledgers API** — The Ledgers API from Amazon QLDB — 10 operation(s) for ledgers.
- **Amazon QLDB Tags API** — The Tags API from Amazon QLDB — 2 operation(s) for tags.

## Agentic access (1)

- **Amazon Qldb Agentic Access** — 20 operations · 12 acting

## Security (4)

- **Amazon Qldb Authentication** — apiKey · 1 scheme
- **Amazon Qldb Domain Security** — TLSv1.3 · HSTS · DMARC
- **Amazon Qldb Vulnerability Disclosure** — security.txt · contact published
- **Amazon Qldb Trust Center** — PCI DSS, HIPAA, FedRAMP, GDPR, FIPS 140

## Plans (1)

- **Amazon Qldb Plans Pricing**

## Tags

Blockchain, Database, Ledger

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