Amazon QLDB website screenshot

Amazon QLDB

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.

Amazon QLDB publishes 3 APIs on the APIs.io network: Journal S3 Exports API, Ledgers API, and Tags API. Tagged areas include Blockchain, Database, and Ledger.

The Amazon QLDB catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Amazon QLDB’s developer surface includes authentication, developer portal, documentation, support, developer console, signup flow, code examples, and 128 more developer resources.

46.0/100 developing ▬ flat Agent 30/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
AccessFreemiumSelf serve⚡ Free to try
1 APIs
BlockchainDatabaseLedger

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/amazon-qldb: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 3

Individual APIs this provider publishes, each with its own machine-readable definition.

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.

Postman Collections 3

Ready-to-run Postman collections for exercising this provider's APIs.

Open Collections 4

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Amazon Qldb Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Amazon Qldb Context

33 classes · 44 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Amazon QLDB API Rules

5 rules · 4 warnings 1 info

SPECTRAL

Amazon QLDB API Rules

24 rules · 12 errors 10 warnings 2 info

SPECTRAL

JSON Schema 41

Standalone JSON Schema definitions for this provider's data models.

CancelJournalKinesisStreamResponse

1 properties

JSON SCHEMA

CreateLedgerRequest

5 properties

JSON SCHEMA

CreateLedgerResponse

7 properties

JSON SCHEMA

DescribeJournalKinesisStreamResponse

1 properties

JSON SCHEMA

DescribeJournalS3ExportResponse

1 properties

JSON SCHEMA

DescribeLedgerResponse

7 properties

JSON SCHEMA

EncryptionStatus

0 properties

JSON SCHEMA

ErrorCause

0 properties

JSON SCHEMA

ExportJournalToS3Request

5 properties

JSON SCHEMA

ExportJournalToS3Response

1 properties

JSON SCHEMA

ExportStatus

0 properties

JSON SCHEMA

GetBlockRequest

2 properties

JSON SCHEMA

GetBlockResponse

2 properties

JSON SCHEMA

GetDigestResponse

2 properties

JSON SCHEMA

GetRevisionRequest

3 properties

JSON SCHEMA

GetRevisionResponse

2 properties

JSON SCHEMA

JournalKinesisStreamDescription

11 properties

JSON SCHEMA

JournalS3ExportDescription

9 properties

JSON SCHEMA

KinesisConfiguration

2 properties

JSON SCHEMA

LedgerEncryptionDescription

3 properties

JSON SCHEMA

LedgerState

0 properties

JSON SCHEMA

LedgerSummary

3 properties

JSON SCHEMA

ListJournalS3ExportsForLedgerResponse

2 properties

JSON SCHEMA

ListJournalS3ExportsResponse

2 properties

JSON SCHEMA

ListLedgersResponse

2 properties

JSON SCHEMA

ListTagsForResourceResponse

1 properties

JSON SCHEMA

OutputFormat

0 properties

JSON SCHEMA

PermissionsMode

0 properties

JSON SCHEMA

S3EncryptionConfiguration

2 properties

JSON SCHEMA

S3ExportConfiguration

3 properties

JSON SCHEMA

S3ObjectEncryptionType

0 properties

JSON SCHEMA

StreamJournalToKinesisRequest

6 properties

JSON SCHEMA

StreamJournalToKinesisResponse

1 properties

JSON SCHEMA

StreamStatus

0 properties

JSON SCHEMA

TagResourceRequest

1 properties

JSON SCHEMA

UpdateLedgerPermissionsModeRequest

1 properties

JSON SCHEMA

UpdateLedgerPermissionsModeResponse

3 properties

JSON SCHEMA

UpdateLedgerRequest

2 properties

JSON SCHEMA

UpdateLedgerResponse

6 properties

JSON SCHEMA

ValueHolder

1 properties

JSON SCHEMA

Scroll for all 41

JSON Structure 41

JSON Structure definitions describing this provider's data shapes.

Amazon Qldb Encryption Status Structure

0 properties

JSON STRUCTURE

Amazon Qldb Error Cause Structure

0 properties

JSON STRUCTURE

Amazon Qldb Export Status Structure

0 properties

JSON STRUCTURE

Amazon Qldb Get Block Request Structure

2 properties

JSON STRUCTURE

Amazon Qldb Get Block Response Structure

2 properties

JSON STRUCTURE

Amazon Qldb Get Digest Response Structure

2 properties

JSON STRUCTURE

Amazon Qldb Get Revision Request Structure

3 properties

JSON STRUCTURE

Amazon Qldb Ledger State Structure

0 properties

JSON STRUCTURE

Amazon Qldb Ledger Summary Structure

3 properties

JSON STRUCTURE

Amazon Qldb Output Format Structure

0 properties

JSON STRUCTURE

Amazon Qldb Permissions Mode Structure

0 properties

JSON STRUCTURE

Amazon Qldb Stream Status Structure

0 properties

JSON STRUCTURE

Amazon Qldb Tag Resource Request Structure

1 properties

JSON STRUCTURE

Amazon Qldb Value Holder Structure

1 properties

JSON STRUCTURE

Scroll for all 41

Examples 33

Example request and response payloads for these APIs.

Scroll for all 33

Security Posture 4

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Amazon Qldb Authentication

apiKey · 1 scheme

SECURITY

Amazon Qldb Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Amazon Qldb Vulnerability Disclosure

security.txt · contact published

SECURITY

Amazon Qldb Trust Center

PCI DSS, HIPAA, FedRAMP, GDPR, FIPS 140

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Amazon Qldb Agentic Access

20 operations · 12 acting

20 operations · 12 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

Documentation 42

Reference material describing how the API behaves

Scroll for all 42

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 43

Pagination, idempotency, versioning, errors, and events

Scroll for all 43

Build 35

SDKs, sample code, and the tooling you integrate with

Scroll for all 35

Access & Security 4

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 1

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
name: Amazon QLDB
description: 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.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
specificationVersion: '0.23'
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://a0.awsstatic.com/libra-css/images/logos/aws_logo_smile_1200x630.png
url: https://aws.amazon.com/qldb/
created: '2024-01-15'
modified: '2026-05-19'
apis:
- aid: amazon-qldb:amazon-qldb-journal-s3-exports-api
  name: Amazon QLDB Journal S3 Exports API
  description: The Journal S3 Exports API from Amazon QLDB — 1 operation(s) for journal s3 exports.
  humanURL: https://aws.amazon.com/qldb/
  baseURL: https://qldb.amazonaws.com
  tags:
  - Journal S3 Exports
  properties:
  - type: OpenAPI
    url: openapi/amazon-qldb-journal-s3-exports-api-openapi.yml
  - type: Documentation
    url: https://docs.aws.amazon.com/qldb/
  - type: Pricing
    url: https://aws.amazon.com/qldb/pricing/
  - type: GettingStarted
    url: https://aws.amazon.com/qldb/getting-started/
  - type: FAQ
    url: https://aws.amazon.com/qldb/faqs/
- aid: amazon-qldb:amazon-qldb-ledgers-api
  name: Amazon QLDB Ledgers API
  description: The Ledgers API from Amazon QLDB — 10 operation(s) for ledgers.
  humanURL: https://aws.amazon.com/qldb/
  baseURL: https://qldb.amazonaws.com
  tags:
  - Ledgers
  properties:
  - type: OpenAPI
    url: openapi/amazon-qldb-ledgers-api-openapi.yml
  - type: Documentation
    url: https://docs.aws.amazon.com/qldb/
  - type: Pricing
    url: https://aws.amazon.com/qldb/pricing/
  - type: GettingStarted
    url: https://aws.amazon.com/qldb/getting-started/
  - type: FAQ
    url: https://aws.amazon.com/qldb/faqs/
- aid: amazon-qldb:amazon-qldb-tags-api
  name: Amazon QLDB Tags API
  description: The Tags API from Amazon QLDB — 2 operation(s) for tags.
  humanURL: https://aws.amazon.com/qldb/
  baseURL: https://qldb.amazonaws.com
  tags:
  - Tags
  properties:
  - type: OpenAPI
    url: openapi/amazon-qldb-tags-api-openapi.yml
  - type: Documentation
    url: https://docs.aws.amazon.com/qldb/
  - type: Pricing
    url: https://aws.amazon.com/qldb/pricing/
  - type: GettingStarted
    url: https://aws.amazon.com/qldb/getting-started/
  - type: FAQ
    url: https://aws.amazon.com/qldb/faqs/
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/amazon-qldb/overview
- type: AgenticAccess
  url: agentic-access/amazon-qldb-agentic-access.yml
- type: TrustCenter
  url: security/amazon-qldb-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/amazon-qldb-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/amazon-qldb-domain-security.yml
- type: Authentication
  url: authentication/amazon-qldb-authentication.yml
- type: Portal
  url: https://aws.amazon.com/
- type: Website
  url: https://aws.amazon.com/qldb/
- type: Documentation
  url: https://docs.aws.amazon.com/qldb/
- type: TermsOfService
  url: https://aws.amazon.com/service-terms/
- type: PrivacyPolicy
  url: https://aws.amazon.com/privacy/
- type: Support
  url: https://aws.amazon.com/premiumsupport/
- type: GitHubOrganization
  url: https://github.com/aws
- type: Console
  url: https://console.aws.amazon.com/qldb/
- type: Signup
  url: https://signin.aws.amazon.com/signup?request_type=register
- type: Login
  url: https://aws.amazon.com/console/
- type: StatusPage
  url: https://health.aws.amazon.com/health/status
- type: Contact
  url: https://aws.amazon.com/contact-us/
- type: JSONLD
  url: json-ld/amazon-qldb-context.jsonld
- type: JSONSchema
  url: json-schema/amazon-qldb-cancel-journal-kinesis-stream-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-create-ledger-request-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-create-ledger-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-describe-journal-kinesis-stream-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-describe-journal-s3export-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-describe-ledger-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-encryption-status-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-error-cause-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-export-journal-to-s3request-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-export-journal-to-s3response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-export-status-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-get-block-request-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-get-block-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-get-digest-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-get-revision-request-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-get-revision-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-journal-kinesis-stream-description-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-journal-s3export-description-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-kinesis-configuration-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-ledger-encryption-description-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-ledger-state-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-ledger-summary-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-list-journal-kinesis-streams-for-ledger-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-list-journal-s3exports-for-ledger-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-list-journal-s3exports-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-list-ledgers-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-list-tags-for-resource-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-output-format-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-permissions-mode-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-s3encryption-configuration-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-s3export-configuration-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-s3object-encryption-type-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-stream-journal-to-kinesis-request-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-stream-journal-to-kinesis-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-stream-status-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-tag-resource-request-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-update-ledger-permissions-mode-request-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-update-ledger-permissions-mode-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-update-ledger-request-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-update-ledger-response-schema.json
- type: JSONSchema
  url: json-schema/amazon-qldb-value-holder-schema.json
- type: JSONStructure
  url: json-structure/amazon-qldb-cancel-journal-kinesis-stream-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-create-ledger-request-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-create-ledger-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-describe-journal-kinesis-stream-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-describe-journal-s3export-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-describe-ledger-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-encryption-status-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-error-cause-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-export-journal-to-s3request-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-export-journal-to-s3response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-export-status-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-get-block-request-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-get-block-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-get-digest-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-get-revision-request-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-get-revision-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-journal-kinesis-stream-description-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-journal-s3export-description-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-kinesis-configuration-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-ledger-encryption-description-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-ledger-state-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-ledger-summary-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-list-journal-kinesis-streams-for-ledger-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-list-journal-s3exports-for-ledger-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-list-journal-s3exports-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-list-ledgers-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-list-tags-for-resource-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-output-format-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-permissions-mode-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-s3encryption-configuration-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-s3export-configuration-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-s3object-encryption-type-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-stream-journal-to-kinesis-request-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-stream-journal-to-kinesis-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-stream-status-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-tag-resource-request-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-update-ledger-permissions-mode-request-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-update-ledger-permissions-mode-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-update-ledger-request-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-update-ledger-response-structure.json
- type: JSONStructure
  url: json-structure/amazon-qldb-value-holder-structure.json
- type: Examples
  url: examples/amazon-qldb-cancel-journal-kinesis-stream-response-example.json
- type: Examples
  url: examples/amazon-qldb-create-ledger-request-example.json
- type: Examples
  url: examples/amazon-qldb-create-ledger-response-example.json
- type: Examples
  url: examples/amazon-qldb-describe-journal-kinesis-stream-response-example.json
- type: Examples
  url: examples/amazon-qldb-describe-journal-s3export-response-example.json
- type: Examples
  url: examples/amazon-qldb-describe-ledger-response-example.json
- type: Examples
  url: examples/amazon-qldb-export-journal-to-s3request-example.json
- type: Examples
  url: examples/amazon-qldb-export-journal-to-s3response-example.json
- type: Examples
  url: examples/amazon-qldb-get-block-request-example.json
- type: Examples
  url: examples/amazon-qldb-get-block-response-example.json
- type: Examples
  url: examples/amazon-qldb-get-digest-response-example.json
- type: Examples
  url: examples/amazon-qldb-get-revision-request-example.json
- type: Examples
  url: examples/amazon-qldb-get-revision-response-example.json
- type: Examples
  url: examples/amazon-qldb-journal-kinesis-stream-description-example.json
- type: Examples
  url: examples/amazon-qldb-journal-s3export-description-example.json
- type: Examples
  url: examples/amazon-qldb-kinesis-configuration-example.json
- type: Examples
  url: examples/amazon-qldb-ledger-encryption-description-example.json
- type: Examples
  url: examples/amazon-qldb-ledger-summary-example.json
- type: Examples
  url: examples/amazon-qldb-list-journal-kinesis-streams-for-ledger-response-example.json
- type: Examples
  url: examples/amazon-qldb-list-journal-s3exports-for-ledger-response-example.json
- type: Examples
  url: examples/amazon-qldb-list-journal-s3exports-response-example.json
- type: Examples
  url: examples/amazon-qldb-list-ledgers-response-example.json
- type: Examples
  url: examples/amazon-qldb-list-tags-for-resource-response-example.json
- type: Examples
  url: examples/amazon-qldb-s3encryption-configuration-example.json
- type: Examples
  url: examples/amazon-qldb-s3export-configuration-example.json
- type: Examples
  url: examples/amazon-qldb-stream-journal-to-kinesis-request-example.json
- type: Examples
  url: examples/amazon-qldb-stream-journal-to-kinesis-response-example.json
- type: Examples
  url: examples/amazon-qldb-tag-resource-request-example.json
- type: Examples
  url: examples/amazon-qldb-update-ledger-permissions-mode-request-example.json
- type: Examples
  url: examples/amazon-qldb-update-ledger-permissions-mode-response-example.json
- type: Examples
  url: examples/amazon-qldb-update-ledger-request-example.json
- type: Examples
  url: examples/amazon-qldb-update-ledger-response-example.json
- type: Examples
  url: examples/amazon-qldb-value-holder-example.json
- type: SpectralRules
  url: rules/amazon-qldb-spectral-rules.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
  url: https://apievangelist.com
tags:
- AWS
- Blockchain
- Database
- Ledger
x-parent: aws
x-relationship: product

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curl "https://apis.io/api/v1/providers/amazon-qldb/operations?limit=25"
How their score was established
curl "https://apis.io/api/v1/providers/amazon-qldb/evidence"

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