Mithrandir — free MCP gateway test
Observe MCP tools, verify repeated reads, then try bounded exact reuse for free.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"mithrandir": {
"url": "https://mithrandir-production.up.railway.app/mcp"
}
}
}Remote endpoints
https://mithrandir-production.up.railway.app/mcpstreamable-httpWhat it can do
Tool inventory
Tools (3)
🟢mithrandir_demo(scenario)
Run a free isolated synthetic Reuse Autopilot demonstration. No production account, upload, payment or private data is used. Compare unchanged, one-partition-changed and missing-source behavior before onboarding.
Input Schema
{
"type": "object",
"properties": {
"scenario": {
"enum": [
"unchanged",
"one_partition_changed",
"missing_source"
],
"default": "one_partition_changed"
}
},
"required": [],
"additionalProperties": false
}🔴mithrandir_gateway_trial_start(name, upstream_url, policy_version, accept_terms, cache_ttl_seconds, ...)
Start a bounded free gateway test. Connect your public HTTPS MCP server, then approve safe reads and verify repetition before free Optimize activation.
Input Schema
{
"type": "object",
"properties": {
"name": {
"type": "string",
"pattern": "^[A-Za-z0-9_.-]{1,80}$"
},
"upstream_url": {
"type": "string",
"minLength": 12,
"maxLength": 1000
},
"policy_version": {
"type": "string",
"minLength": 1,
"maxLength": 80
},
"accept_terms": {
"const": true
},
"cache_ttl_seconds": {
"type": "integer",
"minimum": 30,
"maximum": 86400,
"default": 300
},
"safe_read_tools": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[A-Za-z0-9_.:/-]{1,160}$"
},
"maxItems": 100,
"default": []
},
"tool_costs_microusd": {
"type": "object",
"additionalProperties": {
"type": "integer",
"minimum": 0,
"maximum": 1000000000000
},
"default": {}
},
"min_shadow_matches": {
"type": "integer",
"minimum": 1,
"maximum": 20,
"default": 2
},
"idempotency_key": {
"type": "string",
"minLength": 32,
"maxLength": 128
}
},
"required": [
"name",
"upstream_url",
"policy_version",
"accept_terms",
"idempotency_key"
],
"additionalProperties": false
}🟢mithrandir_security_profile
Free machine-readable description of the v17 Cognitive Membrane trust model: origin-bound authority, task-scoped exact-call capabilities, replay protection, egress control and two-phase effectful actions. This is a security contract description, not proof that a deployment is vulnerability-free.
Input Schema
{
"type": "object",
"properties": {},
"required": [],
"additionalProperties": false
}Community
Evidence