Custom Data Integrations & Private Connectivity

FinFeedAPI and CoinAPI support custom data integrations for teams that need more than off-the-shelf APIs. We work with clients to integrate proprietary data sources, private exchange accounts, and non-standard market feeds directly into our infrastructure, delivering data in the same consistent formats used across our public APIs. This approach allows teams to leverage our existing ingestion, normalization, and delivery systems while maintaining control over access, security, and data scope.

What Is a Custom Integration?

A custom integration is a bespoke data connection built specifically for your environment, data source, or workflow. Instead of adapting your systems to multiple third-party APIs, we adapt our infrastructure to your requirements.

Custom integrations can include:

Private exchange APIs and authenticated market data feeds
Proprietary datasets not available through public endpoints
Non-standard formats or exchange-specific message structures
Custom delivery methods aligned with internal systems

Private Exchange Links

For clients working with private exchange accounts, market makers, or liquidity providers, we offer secure private connectivity.

Private Exchange Links allow you to:

Connect authenticated exchange accounts to a dedicated API instance
Access private market data, balances, or execution data where permitted
Use the same schemas and access patterns as public APIs
Keep credentials isolated and access tightly controlled

This is commonly used by institutional trading firms, hedge funds, and infrastructure teams that require direct exchange connectivity without exposing sensitive credentials.

What Can Be Integrated

We support custom integration across multiple data categories, including:

Crypto exchange market data (spot, futures, perpetuals)
Stock and FX-related data feeds
Prediction markets data sources
Regulatory and disclosure datasets
Internal or partner-provided financial data

Once integrated, data can be delivered through REST APIs, WebSocket streams, JSON-RPC, or Flat Files, depending on your use case.

How Custom Integrations Work

Scope definition

We start by talking through your requirements. This includes the data sources you want to integrate, how you currently access them, what level of detail you need, and how the data will be used in your systems. Together, we define the scope, access method, update frequency, and delivery format so the integration fits your workflow from day one.

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Custom integrations are typically used by teams that:

Need data not available via public APIs

You rely on datasets that aren’t exposed through standard endpoints, such as proprietary feeds, partner data, or restricted sources that require special access.

Work with private or restricted exchange accounts

You access exchanges or venues through authenticated accounts, private APIs, or permissioned connections that can’t be shared publicly.

Require custom schemas or delivery guarantees

You need data delivered in a specific structure, format, or cadence to match internal systems, contracts, or operational requirements.

Want to reduce long-term maintenance of internal data pipelines

You prefer not to build and maintain fragile ingestion scripts, parsers, and connectors that break when upstream systems change.

Operate institutional or production-grade systems

Your systems run in production environments where stability, security, monitoring, and predictable behavior matter more than quick prototypes.

Frequently Asked Questions

Why Build on API Bricks Infrastructure?

By building custom integrations on top of API Bricks, clients avoid reinventing core data infrastructure while still meeting unique requirements.

You get:

Proven ingestion and delivery systems
Consistent data models across products
Secure, monitored production environments
A single partner for public APIs and private data

What is a custom data integration in financial APIs?

A custom data integration is a tailored connection between your data sources and an API platform. Instead of using only public endpoints, custom integrations allow proprietary datasets, private exchange feeds, or non-standard formats to be ingested, normalized, and delivered through a consistent API.

Can you integrate private exchange accounts or authenticated APIs?

Yes. API Bricks supports private exchange links that securely connect authenticated exchange accounts or restricted APIs to a dedicated instance of our infrastructure. Credentials remain isolated, and access is controlled according to your requirements.

What types of data can be integrated through custom solutions?

Custom integrations can include crypto exchange data, stock and FX feeds, prediction markets data, regulatory datasets, and proprietary internal data sources. Both public and private data feeds can be supported, depending on access permissions.

How is custom-integrated data delivered?

Integrated data can be delivered through REST APIs, WebSocket streams, FIX protocol, JSON-RPC interfaces, or Flat Files via S3-compatible storage. Delivery methods are chosen based on how the data is consumed and operational constraints.

Is custom-integrated data normalized like standard APIs?

Yes. Custom-integrated data is mapped into the same standardized schemas used across CoinAPI and FinFeedAPI wherever possible. This ensures consistent formats, identifiers, and access patterns across public and private datasets.

How secure are private exchange integrations?

Private integrations are built with credential isolation, restricted access scopes, and secure connectivity options such as private endpoints or network-level controls. Sensitive credentials are never exposed through public APIs.

Can custom integrations support high-volume or institutional workloads?

Yes. Custom integrations are built on the same production-grade infrastructure used by CoinAPI and FinFeedAPI, designed to handle high data volumes, sustained throughput, and enterprise-grade workloads.

Do you support bespoke schemas or custom data formats?

Yes. When required, custom schemas or transformations can be implemented to match internal systems or legacy data models. This avoids forcing teams to redesign downstream systems to fit generic APIs.

Who typically uses custom data integrations?

Custom integrations are commonly used by institutional trading firms, hedge funds, fintech platforms, data teams, and infrastructure providers that require access to private data or non-standard market feeds.

How long does it take to build a custom integration?

Timelines depend on the data source, access method, and complexity of normalization. Simple integrations can be completed in 1 - 2 weeks, while more complex or multi-source setups require additional planning and validation.

Can custom integrations coexist with standard APIs?

Yes. Many clients use standard CoinAPI or FinFeedAPI endpoints alongside custom integrations, all accessed through the same infrastructure and authentication model.

Why choose API Bricks for custom data integration?

API Bricks combines proven market data infrastructure with the flexibility to support private and bespoke data sources. This allows teams to avoid building and maintaining fragile ingestion pipelines while still meeting unique data requirements.

How do I start a custom integration?

You can start by contacting the API Bricks team to discuss your data sources, access requirements, and delivery preferences. From there, a scoped integration plan can be proposed.

Need data that doesn’t fit a standard API?

Let’s design a custom integration that works with your systems.