> Canonical URL: https://codingcat.dev/post/firebase-2025-04-dataconnect-pricing-postga

# Data Connect Pricing in Firebase: Web Architecture & Implementation Guide

![CodingCat.dev tutorial cover image](https://cdn.sanity.io/images/hfh83o0w/production/ca84c271a09c52688079a32407567eb403437dfb-1200x630.svg?w=1200&q=82&fit=max&auto=format)[![Alex Patterson](https://cdn.sanity.io/images/hfh83o0w/production/a606dfaa381aab08ddbe16a33fe1d3e1fb37c927-400x400.jpg?w=96&h=96&q=82&fit=max&auto=format)Alex Patterson](/author/alex-patterson)April 23, 2025

For years, choosing Firebase meant trading away relational SQL joins, strict foreign keys, and pgvector similarity search in favor of NoSQL document denormalization. Following the announcement of **Data Connect Pricing**  by Andrea Wu on the [**Official Firebase Blog**](https://firebase.blog/posts/2025/04/dataconnect-pricing-postga/) (2025-04-22), here is our hands-on CodingCat.dev breakdown of what actually shipped, how it works under the hood, and how we wire it into production TypeScript, Next.js, Astro, SvelteKit, React, and Angular applications. Note: Firebase Data Connect has been renamed to SQL Connect. Learn more in the SQL Connect announcement.

## The Mental Model: Why Data Connect Pricing Matters for Web Devs

As a Google Developer Expert (GDE) for Firebase and Senior Solutions Engineer at CodingCat.dev, I evaluate every Firebase update through one lens: does it reduce boilerplate while keeping our runtime security and cloud bills predictable? Firebase Data Connect bridges that gap by pairing a managed Google Cloud SQL for PostgreSQL instance with a declarative GraphQL schema compiler that automatically generates type-safe TypeScript, React, and Angular SDKs alongside server-enforced @auth directives.

> AJ Pro-Tip from Alex: Keep your authorization logic inside your Data Connect GraphQL operations using @auth(level: USER) and server-evaluated expressions like auth.uid and request.time rather than trusting client-supplied user IDs in query variables.

## How It Works: Technical Breakdown & Implementation

With Firebase [**Data Connect now generally available**](https://firebase.blog/posts/2025/04/dataconnect-general-availability), there are some updates to [**public preview pricing**](https://firebase.blog/posts/2024/11/dataconnect-pricing). This blog post covers the pricing structure going forward for Data Connect.

At a high level, Data Connect consists of two billable components:

- the **Data Connect ** service itself which has no-cost tiers
- **PostgreSQL instance on Cloud SQL ** that contains your project data has a no-cost trial for 3 months, then permanent costs as low as $9.37 per month that follows [**Google Cloud pricing**](https://cloud.google.com/sql/docs/postgres/pricing)

If you use vector embeddings in your schema, there are associated costs for for Vertex AI as well.

Let’s take a deeper look at the two billable components of Data Connect.

### Pricing for Data Connect service

The Data Connect service pricing consists of two parts: network egress and operation count.

The Data Connect service has no cost for network egress up to 10 GiB/month, and then it follows [**Google Cloud Internet Data Transfer Rate Premium Tier pricing**](https://cloud.google.com/vpc/pricing#internet_egress).

The amount of data transferred out of the database is going to incur costs for the Data Connect service, and the cost depends on the location of your database and the destination of the response. All data transferred to the database (i.e., data ingress) is free. There are no other associated costs with regards to network egress for the Data Connect service.

[**Google Cloud pricing**](https://cloud.google.com/sql/docs/postgres/pricing) has a section for network egress. The good news is network egress is only charged once for data going out of your database. When you call the Data Connect service, that service calls Cloud SQL as in internal call and Cloud SQL will not generate any network egress costs.

That being said, there might be inter-region costs as a result of transferring data to Cloud SQL cross-region replicas. However, this is unlikely with a single database, because your replicas are going to be created in the same region unless you select otherwise.

You may also receive an additional network egress call if you call Cloud SQL directly, and an example of this is running data analytics that isn’t day-to-day application logic. This means you might see:

- SQL Connect egress charges for your regular Data Connect usage as described above, and
- Cloud SQL egress charges for your non-Data Connect usage Therefore, you may see both Data Connect and CloudSQL network egress charges within a month for data transferring out, but that means you called both services.

Although queries and mutations are billable operations, there is no cost up to 250k operations per month, and then the cost is $4.00 per 1M operations.

$4 per 1M operations sounds like a hefty cost (perhaps compared to the charges from [**Firebase Firestore**](https://firebase.google.com/pricing)). But, Data Connect operations and Firestore access to documents are very different. One Data Connect operation can retrieve many records of data, while one document read gets one document which is comparable to one record. In a query or mutation with Data Connect, you can get an entire database’s worth of data (or even more with joins), and this is just one operation. To accomplish the same in Firestore, you would need the number of reads or writes equal to however many records there are in the database.

### Pricing for PostgreSQL instance on Cloud SQL

There are costs associated with your PostgreSQL instance on Cloud SQL. For the sake of simplicity in this section, we’ll use “your instance” to stand for “your PostgreSQL instance on Cloud SQL”.

You will be qualified for a no-cost trial if you accept the default configuration when you provision your instance. The trial details are:

- 5 free trials are available per billing account.
- 1 free trial for your instance per Firebase project, although you can have multiple non-free instances within that project.
- The default configuration of your instance on Cloud SQL is equivalent to a [**db-f1-micro instance**](https://cloud.google.com/products/calculator?dl=CiRhNDU2NjBmOC1lODJiLTQ0NTctOTliNy00ZmEyZDAyYWFjYTMQBxokODA2Q0I5NzUtMTNEMC00QURFLTg5MUUtMDI2M0VGNzFBMDI0&e=13802955) that has 1 vCPU, 10 GB of storage, and 628.74 MB of memory.

During the no-cost trial, you can add computing resources to your instance, set up a private IP for your instance, and create a read replica for your instance. Doing so incurs costs according to [**Cloud SQL pricing**](https://cloud.google.com/sql/docs/postgres/pricing).

After 3 months, pricing starts as low as $9.37 / month, and pricing varies based on regions and configurations. Cloud SQL pricing consists of three components:

See [**Cloud SQL pricing**](https://cloud.google.com/sql/docs/postgres/pricing) for more details.

### Calling CloudSQL Directly

If you are using Data Connect under the usual circumstances, you will not be calling CloudSQL directly, and in the case that you are, you will have egress charges and maybe operation count charges. This use-case is likely only for more advanced users, those who have knowledge of existing systems and are explicitly calling the CloudSQL service.

### Vertex AI Pricing

If you want to use Data Connect for [**vector similarity search**](https://firebase.google.com/docs/data-connect/solutions-vector-similarity-search), you’ll need to integrate [**Vertex AI**](https://cloud.google.com/vertex-ai)’s [**Embeddings API**](https://cloud.google.com/vertex-ai/generative-ai/docs/embeddings/get-text-embeddings). As such, there are charges for [**embedding generation**](https://cloud.google.com/vertex-ai/generative-ai/pricing#embedding-models).

### Resources

Pricing is an essential consideration for any used technology in app development, so we hope this is helpful for you in clarifying any questions and concerns you may have in using Firebase Data Connect. You can check out the Firebase [**pricing documentation**](https://firebase.google.com/pricing) and the Data Connect [**documentation**](https://firebase.google.com/docs/data-connect) for the most up-to-date information on pricing.

## Show Me the Code: TypeScript & Web SDK Setup

Here is the production baseline pattern we use at CodingCat.dev when wiring Data Connect Pricing into a modern TypeScript web application:

```
# Firebase Data Connect Schema & Type-Safe Web Query
type Project @table {
  id: UUID! @default(expr: "uuidV4()")
  title: String!
  ownerUid: String! @default(expr: "auth.uid")
  createdAt: Timestamp! @default(expr: "request.time")
}

query ListUserProjects @auth(level: USER) {
  projects(where: { ownerUid: { eq_expr: "auth.uid" } }, orderBy: [{ createdAt: DESC }]) {
    id
    title
    createdAt
  }
}
```

## Production Web Architecture & Security Checklist

Whether we are deploying on [**Firebase App Hosting**](https://firebase.google.com/docs/app-hosting), Cloudflare Workers, or Vercel, shipping AI features to production requires defense-in-depth across three layers:

- **Enforce Firebase App Check & Attestation: ** Protect your web endpoints, Cloud Functions, Data Connect GraphQL resolvers, and Firebase AI Logic calls against unauthorized replay or billing abuse using [**Firebase App Check with reCAPTCHA Enterprise**](https://firebase.google.com/docs/app-check).
- **Validate Locally with the Firebase Emulator Suite: ** Run deterministic integration tests against local Firestore, Auth, Functions, and Data Connect PostgreSQL emulators before promoting schema or rule changes to production.
- **Keep Server & Client Boundaries Type-Safe: ** Use the modular Firebase Web SDK and generated TypeScript bindings so SSR frameworks like Next.js, Astro, SvelteKit, and Angular serialize state cleanly without hydration flickers.

## Conclusion

Accelerate your full-stack web and AI development by pairing **Data Connect Pricing**  with strict Security Rules, Firebase App Check, and local emulator testing. Come tell us on [**X (@CodingCatDev)**](https://x.com/CodingCatDev) and [**LinkedIn (CodingCat.dev)**](https://www.linkedin.com/company/codingcatdev) how you are using Firebase in your stack, and subscribe to the [**CodingCat.dev YouTube Channel**](https://www.youtube.com/@CodingCatDev?sub_confirmation=1) so you don't miss what we build next!

## Watch Our Related Firebase Video Tutorial on YouTube

Want to see how we architect and debug Firebase web applications live? Watch our related CodingCat.dev session [**Firebase SQL with Data Connect**](https://youtu.be/N25khadfUag) below, and make sure to [**Subscribe to CodingCat.dev on YouTube**](https://www.youtube.com/@CodingCatDev?sub_confirmation=1) for weekly full-stack web and AI deep dives:

## Resources, Official Docs & Related CodingCat.dev Guides

- **Primary Release Source: ** [Data Connect Pricing on the Official Firebase Blog](https://firebase.blog/posts/2025/04/dataconnect-pricing-postga/) (published 2025-04-22 by Andrea Wu)
- **Official Firebase Documentation: ** [Firebase Developer Docs & Web SDK Reference](https://firebase.google.com/docs/web/setup)
- **Related on CodingCat.dev: [React Native Support and Gemini Live APIs for Vertex AI in Firebase](/post/firebase-2025-04-vertex-ai-updates)**
- **Related on CodingCat.dev: [Aggregate Fields for Data Connect](/post/firebase-2025-04-dataconnect-aggregate-fields)**
- **Related on CodingCat.dev: [Firebase SQL with Data Connect](/podcast/firebase-sql-with-data-connect)**
- **Related on CodingCat.dev: [Build a Custom No-Code App in 90 Minutes](/podcast/build-a-custom-no-code-app-in-90-minutes)**

## Frequently Asked Questions (FAQ)

### What are the key capabilities introduced in Data Connect Pricing?

Data Connect Pricing (announced 2025-04-22 by the Firebase team) enhances the platform for Firebase, Google Cloud, Web Dev, AI, SQL workloads. Note: Firebase Data Connect has been renamed to SQL Connect. Learn more in the SQL Connect announcement. Developers can review the primary announcement on the [**Firebase Blog**](https://firebase.blog/posts/2025/04/dataconnect-pricing-postga/) alongside our implementation patterns and production checklist above.

### How do web developers use Data Connect Pricing with Next.js, SvelteKit, React, or Angular?

Web developers can integrate these features using the modular Firebase JavaScript/TypeScript SDK, Firebase Data Connect web bindings, and [**Firebase App Hosting**](https://firebase.google.com/docs/app-hosting). Always pair client-side SDK initialization with Firebase App Check and strict Security Rules, and test locally with the Firebase Local Emulator Suite before deploying.

### Where can I watch video tutorials on Firebase Web and AI development?

You can watch our hands-on Firebase video walkthroughs on the [**CodingCat.dev YouTube Channel**](https://www.youtube.com/@CodingCatDev?sub_confirmation=1), including [**Firebase SQL with Data Connect**](https://youtu.be/N25khadfUag), and follow us on [**X (@CodingCatDev)**](https://x.com/CodingCatDev) for weekly full-stack tutorials.

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