Introducing Synapse Client SDK v2.0.0: A Composable Framework for AI Agents on Solana

Synapse Client SDK v2.0.0: Building the Toolkit for Autonomous Agents on Solana

We’re excited to introduce Synapse Client SDK v2.0.0, a major update to the developer toolkit powering the next generation of autonomous agents on Solana.

As AI systems begin interacting directly with blockchain infrastructure, developers need tools that bridge modern AI runtimes with on-chain ecosystems. The Synapse SDK was designed to solve exactly this problem.

Version 2.0.0 expands the SDK into a fully modular framework for building agents that can interact with Solana protocols, external services, and AI systems in a composable way.

The result is a toolkit that connects AI models, on-chain infrastructure, and programmable agents through a single developer interface.

Why Agent Infrastructure Matters

AI agents are quickly moving beyond simple automation scripts. They are beginning to monitor markets, execute transactions, coordinate services, and interact with other systems autonomously.

In a blockchain environment, this creates a new type of participant: machine actors operating continuously on-chain.

But building these systems is still complicated. Developers typically need to integrate:

blockchain RPC infrastructure
protocol integrations
AI tool frameworks
external APIs
payment systems

Synapse Client SDK simplifies this stack by providing a unified interface that connects all of these components together.

Instead of stitching together multiple libraries, developers can interact with Solana, protocols, AI tools, and external services through a single SDK.

A Unified Client for Solana and AI Systems

At the center of the SDK is SynapseClient, the core interface that connects developers to the entire stack.

Through this client, developers can access:

Solana RPC methods
WebSocket subscriptions
DAS indexing queries
gRPC streaming
agent tooling
plugin-based protocol integrations

The SDK exposes over 50 Solana JSON-RPC methods, allowing applications and agents to interact with the blockchain directly without additional infrastructure.

This makes Synapse suitable not only for AI agents, but also for general Solana development workflows.

A Modular Plugin Architecture

One of the biggest changes in version 2.0.0 is the introduction of a plugin-based architecture.

Plugins allow developers to extend agent capabilities by attaching collections of tools that interact with different parts of the ecosystem.

Instead of writing integrations from scratch, developers can simply add plugins to their agent.

The SDK currently includes more than 110 tools across 18 protocols and services, including Raydium, Orca, Meteora, Drift, Jito, Metaplex, SPL Token utilities, SNS and AllDomains, Pyth and CoinGecko data feeds.

Each plugin provides a set of structured tools that agents can use directly.

This modular approach makes it possible to build agents with very different capabilities. A trading agent, for example, might include DeFi plugins, while another agent could focus on NFT operations or data services.

AI-Native Tooling

The Synapse SDK was built with AI agents in mind.

All tools in the SDK are defined using Zod schemas, which makes them compatible with AI tool frameworks such as LangChain.

From these schemas, the SDK automatically generates structured tools that can be consumed by AI models.

This allows developers to expose Solana capabilities directly to AI systems in a safe and structured way.

Agents can then call blockchain operations, data services, or protocol integrations through natural AI workflows.

Native Model Context Protocol Support

Another major feature introduced in v2.0.0 is full support for the Model Context Protocol (MCP).

MCP is emerging as a standard interface for connecting AI models with external tools.

The Synapse SDK includes both:

an MCP server, which allows agents to expose their tools to AI models
an MCP client bridge, which allows agents to connect to external MCP servers

This means agents built with Synapse can integrate directly with AI development environments such as: Claude Desktop, Cursor, VS Code MCP clients.

By supporting MCP natively, Synapse makes it possible to connect Solana-native capabilities with the broader AI ecosystem.

Payments Between Agents

Autonomous agents don’t just execute tasks. They also need to exchange value.

The SDK includes built-in support for the x402 payment protocol, which enables machine-to-machine payments over HTTP.

This allows agents to:

request payment for services
verify payment settlement
trigger workflows after payment confirmation

With this infrastructure in place, developers can build agent marketplaces, paid APIs, and autonomous service networks.

Designed for Extensibility

One of the core design goals of Synapse is flexibility.

The SDK was built to support evolving ecosystems and new agent capabilities. Developers can extend the system by integrating:

custom plugins
new protocol integrations
external MCP servers
additional AI frameworks

This makes the SDK suitable for a wide range of use cases, from small automation tools to large multi-agent systems.

Working Alongside the Synapse Agent Protocol

The Synapse Client SDK is designed to work alongside the Synapse Agent Protocol (SAP).

While the SDK provides the developer tools and integrations needed to build agents, SAP provides the on-chain infrastructure for identity, reputation, memory, and coordination between agents.

Together they form the foundation for building trust-aware autonomous systems on Solana.

Getting Started

Developers can start building with the Synapse Client SDK today.

Install the SDK:

npm install @oobe-protocol/synapse-client-sdk

Explore the repository:

https://github.com/OOBE-PROTOCOL/synapse-client-sdk

The repository includes documentation, examples, and guides for integrating the SDK into agent applications.

Looking Ahead

The release of Synapse Client SDK v2.0.0 represents an important step toward making autonomous agents a first-class part of the Solana ecosystem.

As agents begin interacting more actively with blockchain infrastructure, the need for reliable tooling and coordination frameworks will only grow.

Synapse aims to provide the developer infrastructure needed to support this emerging ecosystem of autonomous systems.