ollama-mcp-bridge

A TypeScript bridge that connects Ollama-hosted local LLMs to MCP (Model Context Protocol) servers via JSON-RPC. It registers MCP tools, routes tool calls produced by the LLM to the appropriate MCP server(s), and validates/returns structured results to the user.

Evaluated Mar 30, 2026 (22d ago)
Repo ↗ Ai Ml typescript mcp ollama tool-calling json-rpc local-llm agents
⚙ Agent Friendliness
48
/ 100
Can an agent use this?
🔒 Security
39
/ 100
Is it safe for agents?
⚡ Reliability
29
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
70
Documentation
55
Error Messages
0
Auth Simplicity
50
Rate Limits
20

🔒 Security

TLS Enforcement
25
Auth Strength
55
Scope Granularity
25
Dep. Hygiene
35
Secret Handling
50

Security posture is largely determined by the underlying MCP servers and how the bridge constrains/validates tool calls. The README mentions allowedDirectory for filesystem, plus environment-variable credentials for third parties, but does not document authorization granularity, audit logging, or strong secret-handling guarantees. Local baseUrl shown as http://localhost:11434 suggests TLS is not inherently enforced at the bridge layer.

⚡ Reliability

Uptime/SLA
0
Version Stability
40
Breaking Changes
30
Error Recovery
45
AF Security Reliability

Best When

You control the local environment, install MCP servers you trust, and want local tool-calling across multiple MCP capabilities.

Avoid When

You cannot trust MCP server code/credentials, or you need strong guarantees around authz enforcement, safe filesystem boundaries, and operational SLAs.

Use Cases

  • Let local Ollama models use MCP tools (filesystem, search, GitHub, Drive/Gmail, memory, image generation)
  • Build local assistant workflows with tool calling that is MCP-compatible
  • Route different tool requests to multiple MCP servers dynamically
  • Create Claude-like tool experiences using locally hosted models

Not For

  • Production environments requiring a guaranteed security boundary for arbitrary tool execution without additional controls
  • Use cases that need a stable, documented HTTP API/SDK surface for third-party automation
  • Scenarios requiring explicit, documented rate-limit semantics and pagination

Interface

REST API
No
GraphQL
No
gRPC
No
MCP Server
No
SDK
No
Webhooks
No

Authentication

Methods: Environment variables for third-party APIs (BRAVE_API_KEY, GITHUB_PERSONAL_ACCESS_TOKEN, REPLICATE_API_TOKEN) MCP server auth flows invoked via CLI (example: gmail-drive MCP auth command)
OAuth: No Scopes: No

Auth appears to be delegated to the MCP servers and external services via environment variables and server-specific auth commands rather than a unified auth layer in the bridge.

Pricing

Free tier: No
Requires CC: No

Appears to be a local tool (MIT, npm-based). Costs depend on your Ollama model hardware and any paid upstream APIs used by MCP servers.

Agent Metadata

Pagination
none
Idempotent
False
Retry Guidance
Not documented

Known Gotchas

  • Tool execution can be stateful/side-effecting (filesystem operations, sending email), so retries could duplicate actions if not idempotent
  • Correctness/safety depends heavily on MCP server configuration and allowed directories/permissions
  • Authentication is distributed across MCP servers; missing/invalid env vars or auth steps may cause failures that the bridge must surface clearly

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Scores are editorial opinions as of 2026-03-30.

8642
Packages Evaluated
17761
Need Evaluation
586
Need Re-evaluation
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