R3E Network has broadened its AI integration tooling for Neo with two developments: the Neo MCP Server now covers both Neo N3 and Neo X with 46 tools, and neo3scan.com has gained a conversational AI assistant for on-chain analysis. Both projects are led by Jimmy Liao, R3E Network founder and Neo core developer.

The MCP Server, previously named neo-n3-mcp, has been renamed to neo-mcp, reflecting its expanded scope. When NNT last covered the project at v3.1.0, it exposed 23 read-only tools for Neo N3 with a fail-closed write safety model. The server now provides 46 tools spanning both chains, while maintaining the same non-custodial architecture.

Dual-chain architecture and tool expansion

Neo X support introduces read-only EVM JSON-RPC access, Blockscout-backed explorer analytics, and GraphQL querying alongside the existing Neo N3 capabilities. Every tool call requires an explicit chain argument, either "n3" or "neox", with no silent defaults.

Beyond chain coverage, the tool surface has gained several intelligence-oriented capabilities. Transaction analysis provides deterministic fee arithmetic, decimals-aware transfer amounts, grouped fund flows, signer details, and VM outcome classification. A contract analysis tool returns network-scoped ABI data, manifest permissions, compiler information, and update history. A dedicated NeoVM code inspection tool offers paginated disassembly with resolved syscall names, method ownership, and static control-flow targets. An address intelligence tool exposes network-scoped account analysis.

Additional tools cover Neo Name Service reads, native Oracle price queries, NeoFS reads, Neo X bridge metadata, and unsigned vote simulation with exact parameter enforcement.

The server has also migrated to the latest MCP protocol specification replacing the v1 SDK with split v2 packages. Clients using the old protocol are rejected rather than downgraded. The stateless per-request HTTP model enables horizontal scaling without sticky routing or shared session storage.

Write safety maintained

The non-custodial design introduced in v3.x carries forward unchanged. All state-changing operations remain disabled by default and require explicit opt-in. Private keys never cross the MCP or HTTP tool boundary. Server-side signing uses a single WIF loaded from an owner-only file.

Write tools register only when enabled, and every write follows a multi-step approval flow using signed intent records with SHA-256 fingerprint verification. The build_* family of tools runs read-only simulations and returns unsigned transaction proposals for external wallet review. MCP HTTP transport remains read-only by design, regardless of server configuration.

neo3scan AI assistant

Separately, neo3scan.com has launched an AI assistant that enables conversational blockchain analysis across Neo N3 and Neo X. Liao announced the feature on July 27, connecting it to the goal he outlined when neo3scan launched in February, enabling users to interact with Neo’s blockchain data conversationally rather than through static lookup interfaces.

Liao stated:

“Three months ago, I said i want to make people able to chat with neo. Here it is, AI assistance for neo N3 and neo X, to enable it, i completely refactored neofura, mcp, and explorer accordingly.”

The assistant provides evidence-based analysis, tracing counterparties, fund flows, signers, contract interactions, token transfers, fees, and VM status from deterministic index data. Verified on-chain facts remain separate from any heuristic interpretation. MainNet and TestNet data stays isolated, with cross-network queries returning no results rather than mixing scopes.

The assistant is built on R3E Network’s neo3fura indexed data backend, which feeds neo3scan.com and the MCP Server. The project’s architecture documentation describes neo-mcp as “the typed orchestration boundary,” exposing deterministic explorer evidence and unsigned, simulated proposals to AI assistants, while wallet signing and broadcasting remain outside the hosted service.

Liao acknowledged the assistant is still being refined.

The AI assistant is available on neo3scan.com and neo-mcp is available at https://github.com/r3e-network/neo-mcp.

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