# Google Cloud Pub/Sub

**Canonical:** https://apis.io/providers/google-cloud-pubsub/  
**APIs profiled:** 3

Google Cloud Pub/Sub is a fully managed, real-time messaging service that allows you to send and receive messages between independent applications. It provides reliable, many-to-many, asynchronous messaging that decouples senders and receivers.

## Kin Score — 38.0 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 38.0).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 74.1 |
| Governance | 13.6 |
| Contract Governance | 13.6 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 23.8 |
| Commercial Clarity | 26.3 |
| Access Clarity | 26.3 |

## Agent readiness — 30.3 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | derived |
| 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)

- **Google Cloud Pub/Sub Schemas API** — Operations for managing Pub/Sub schemas
- **Google Cloud Pub/Sub Subscriptions API** — Operations for managing Pub/Sub subscriptions
- **Google Cloud Pub/Sub Topics API** — Operations for managing Pub/Sub topics

## Agentic access (1)

- **Google Cloud Pubsub Agentic Access** — 13 operations · 8 acting

## Security (3)

- **Google Cloud Pubsub Authentication** — oauth2 · 1 scheme
- **Google Cloud Pubsub Domain Security** — TLSv1.3 · HSTS · DMARC
- **Google Cloud Pubsub Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Google Cloud Pubsub Plans Pricing**

## Tags

Event-Driven, Google Cloud, Messaging, Pub-Sub

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