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Search / io.github.GSterlingPress/preflight

PREFLIGHT — URL Routing for AI Agents

R0· no sign-in

Choose HTTP, browser, machine endpoint, or avoid before an agent visits an unfamiliar URL.

v0.7.6 · active · repository · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality91strong
Trust94of 100
Uptime, 30 days100%
Latency p50321 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "preflight": {
      "type": "http",
      "url": "https://preflight-api-production-01a2.up.railway.app/mcp"
    }
  }
}
claude mcp add --transport http preflight https://preflight-api-production-01a2.up.railway.app/mcp
[mcp_servers.preflight]
url = "https://preflight-api-production-01a2.up.railway.app/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "preflight": {
      "type": "remote",
      "url": "https://preflight-api-production-01a2.up.railway.app/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "preflight": {
      "type": "http",
      "url": "https://preflight-api-production-01a2.up.railway.app/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=preflight&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vcHJlZmxpZ2h0LWFwaS1wcm9kdWN0aW9uLTAxYTIudXAucmFpbHdheS5hcHAvbWNwIn0%3D"
}
{
  "servers": {
    "preflight": {
      "type": "http",
      "url": "https://preflight-api-production-01a2.up.railway.app/mcp"
    }
  }
}
{
  "mcpServers": {
    "preflight": {
      "httpUrl": "https://preflight-api-production-01a2.up.railway.app/mcp"
    }
  }
}
extensions:
  "preflight":
    enabled: true
    name: "preflight"
    type: streamable_http
    uri: "https://preflight-api-production-01a2.up.railway.app/mcp"
    timeout: 300

Quality 91 / 100strong

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene100 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations2 of 2 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 326 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability100 · weight 15
  • pass
    stability.changesno tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

2 tools, about 326 tokens to load them all · tool set 39ecdaf13aeb · checked 2026-10-19 10:20 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 94 / 100

provenance90
liveness100
freshness85
hygiene100

+repository +namespace-matches-repo +website +reachable +uptime-100% ~updated-36d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://preflight-api-production-01a2.up.railway.app/mcp streamable-httpnoneyes100%321 ms2025-11-252026-10-19

Tools (2)

preflight_checkread-onlyBefore fetching, crawling, scraping, opening, or browser-rendering an unfamiliar http/https URL, call this with the ACTUAL destination URL. Returns the best first route: HTTP, BROWSER, MACHINE_ENDPOINT, or AVOID, plus access/JS/size/cost hints. Do not substitute example.com when a real task URL is available.
preflight_feedbackAfter following a PREFLIGHT recommendation, report whether the chosen route worked so PREFLIGHT can improve future recommendations.

Schemas: list_tools.

Similar MCP servers

More from io.github.GSterlingPress

Official server.json
{
  "name": "io.github.GSterlingPress/preflight",
  "title": "PREFLIGHT — URL Routing for AI Agents",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://preflight-api-production-01a2.up.railway.app/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.7.6",
  "repository": {
    "url": "https://github.com/GSterlingPress/preflight-api",
    "source": "github"
  },
  "websiteUrl": "https://github.com/GSterlingPress/preflight-api",
  "description": "Choose HTTP, browser, machine endpoint, or avoid before an agent visits an unfamiliar URL."
}