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 is listed with 5 APIs on the APIs.io network. Tagged areas include Database, Open Source, Relational Database, and SQL.
PostgreSQL’s developer surface includes documentation, engineering blog, and 7 more developer resources.
Kin Score
Markets this provider is in provisional
The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.
| Market | Position | Depth | Registered MCP server | Declares compatibility |
|---|---|---|---|---|
| Databases (PostgreSQL wire) | standard | 30.3 | - | - |
| Vulnerability Disclosure (CVE Numbering Authorities, FIRST member teams; CISA KEV exposure) | standard | 30.3 | - | - |
Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
APIs 5
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.
PostgreSQL Wire Protocol
The PostgreSQL frontend/backend protocol is the low-level message-based protocol used by all client drivers (libpq, JDBC, ODBC, psycopg, pgx, node-postgres, etc.) to communicate...
libpq C Client Library
libpq is the official C application programmer's interface to PostgreSQL and the underlying library used by most other PostgreSQL client interfaces. It provides connection manag...
PostgreSQL JDBC Driver
The official Type 4 JDBC driver for PostgreSQL enables Java applications to connect to PostgreSQL using the standard JDBC API. It supports connection pooling, prepared statement...
PostgreSQL ODBC Driver (psqlODBC)
The official ODBC driver for PostgreSQL providing Open Database Connectivity for Windows, Linux, and macOS applications including Microsoft Office, Tableau, Power BI, and other ...
PostgreSQL API pricing
Not yet checked against PostgreSQL's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.
| Plan | Price |
|---|---|
| Free freemium | Free |
| Professional paid | Free |
| Enterprise enterprise | — |
Plan details, limits and sources →
Rate limits
- Free Tier Default: 10 requests per minute
- Free Tier Monthly Quota: 1000 requests per month
- Professional Tier Default: 100 requests per minute
Compiled by API Evangelist, not yet checked against PostgreSQL's documentation. All 5 limits →
Pricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
PostgreSQL Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
PostgreSQL Finops
FINOPSSecurity Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Documentation 1
Reference material describing how the API behaves
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 1
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Source (apis.yml)
PostgreSQL API — frequently asked questions
Does PostgreSQL have an API?
Yes. APIs.io lists 5 APIs from PostgreSQL, including PostgreSQL, PostgreSQL Wire Protocol and libpq C Client Library, and 2 more.
How much does the PostgreSQL API cost?
APIs.io lists 3 pricing plans for PostgreSQL, with each plan's price, limits and inclusions under Pricing on this page.
Is the PostgreSQL API ready for AI agents?
PostgreSQL has a Kin Score of 11.6 out of 100 (emerging) and an Agent Readiness score of 0.6 (human-only), scored by API Evangelist on 2026-11-13.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.