PostgreSQL website screenshot

PostgreSQL

PostgreSQL is a powerful, open-source object-relational database system with over 35 years of active development. It provides advanced SQL compliance, ACID transactions, and extensibility. PostgreSQL exposes a binary wire protocol via libpq and language bindings rather than a public HTTP REST API, so there is no canonical OpenAPI specification. HTTP access is typically layered on top via PostgREST, Hasura, or application code.

PostgreSQL publishes 1 API on the APIs.io network. Tagged areas include Database, Open Source, Relational Database, and SQL.

PostgreSQL’s developer surface includes documentation, engineering blog, and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub
20.7/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFreemium
1 APIs
DatabaseOpen SourceRelational DatabaseSQL

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 20.7/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 3.0 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 5.0 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/postgresql: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

PostgreSQL

Open-source relational database with advanced SQL compliance and extensibility. Client libraries available in many languages.

Pricing Plans 1

Published pricing tiers and plan structures.

Postgresql Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Postgresql Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Postgresql Finops

FINOPS

Security Posture 1

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

Postgresql Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Community
Community

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: postgresql
name: PostgreSQL
description: PostgreSQL is a powerful, open-source object-relational database system with over 35 years of active development.
  It provides advanced SQL compliance, ACID transactions, and extensibility. PostgreSQL exposes a binary wire protocol via
  libpq and language bindings rather than a public HTTP REST API, so there is no canonical OpenAPI specification. HTTP access
  is typically layered on top via PostgREST, Hasura, or application code.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/postgresql.png
tags:
- Database
- Open Source
- Relational Database
- SQL
url: https://raw.githubusercontent.com/api-evangelist/postgresql/refs/heads/main/apis.yml
created: '2026-03-16'
modified: '2026-04-28'
specificationVersion: '0.19'
apis:
- aid: postgresql:postgresql
  name: PostgreSQL
  description: Open-source relational database with advanced SQL compliance and extensibility. Client libraries available
    in many languages.
  humanURL: https://www.postgresql.org/
  tags:
  - Database
  - SQL
  properties:
  - type: Documentation
    url: https://www.postgresql.org/docs/
  - type: GettingStarted
    url: https://www.postgresql.org/docs/current/tutorial.html
common:
- type: DomainSecurity
  url: security/postgresql-domain-security.yml
- type: Website
  url: https://www.postgresql.org/
- type: Documentation
  url: https://www.postgresql.org/docs/
- type: Community
  url: https://www.postgresql.org/community/
- type: GitHubOrganization
  url: https://github.com/postgres/postgres
- url: https://www.postgresql.org/news.rss
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com