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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "preflight": {
      "type": "http",
      "url": "https://preflight.madebydevx.com/mcp"
    }
  }
}

claude mcp add --transport http preflight https://preflight.madebydevx.com/mcp

[mcp_servers.preflight]
url = "https://preflight.madebydevx.com/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "preflight": {
      "type": "remote",
      "url": "https://preflight.madebydevx.com/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "preflight": {
      "type": "http",
      "url": "https://preflight.madebydevx.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=preflight&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vcHJlZmxpZ2h0Lm1hZGVieWRldnguY29tL21jcCJ9"
}

{
  "servers": {
    "preflight": {
      "type": "http",
      "url": "https://preflight.madebydevx.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "preflight": {
      "httpUrl": "https://preflight.madebydevx.com/mcp"
    }
  }
}

extensions:
  "preflight":
    enabled: true
    name: "preflight"
    type: streamable_http
    uri: "https://preflight.madebydevx.com/mcp"
    timeout: 300

Quality 80 / 100good

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 hygiene75 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
fail
tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: preflight_quote (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); preflight_validate (readOnlyHint, destructiveHint, idempotentHint, openWorldHint)
pass
tools.token_costabout 146 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump
pass
tools.hidden_textno hidden text in tool names, descriptions, schemas or annotations

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name
pass
stability.new_linksno tool change named a new site

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

2 tools, about 146 tokens to load them all · tool set 8648e5071383 · checked 2026-11-14 07:03 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 81 / 100

no-repository

provenance55

liveness96

freshness100

hygiene80

+dns-namespace +website +reachable +uptime-90% +updated-8d-ago -no-repository

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

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://preflight.madebydevx.com/mcp` streamable-http	none	yes	90%	187 ms	2025-11-25	2026-11-14

Tools (2)

`preflight_quote`	Free: price, payTo and the exact x402 request to buy a Base transaction preflight (simulation with decoded revert, gas limit, full fee in ETH/USD).
`preflight_validate`	Free: checks from/to/data/value formatting and whether 'to' is a contract on Base, before you pay.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.madebydevx.preflight/preflight",
  "title": "Base Tx Preflight",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://preflight.madebydevx.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://preflight.madebydevx.com",
  "description": "Simulate a Base tx before signing: revert reason, gas limit, full fee in ETH/USD. Paid x402."
}