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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "x402-research": {
      "type": "http",
      "url": "https://x402.devvizion.com/mcp"
    }
  }
}

claude mcp add --transport http x402-research https://x402.devvizion.com/mcp

[mcp_servers.x402-research]
url = "https://x402.devvizion.com/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "x402-research": {
      "type": "remote",
      "url": "https://x402.devvizion.com/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "x402-research": {
      "type": "http",
      "url": "https://x402.devvizion.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=x402-research&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8veDQwMi5kZXZ2aXppb24uY29tL21jcCJ9"
}

{
  "servers": {
    "x402-research": {
      "type": "http",
      "url": "https://x402.devvizion.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "x402-research": {
      "httpUrl": "https://x402.devvizion.com/mcp"
    }
  }
}

extensions:
  "x402-research":
    enabled: true
    name: "x402-research"
    type: streamable_http
    uri: "https://x402.devvizion.com/mcp"
    timeout: 300

Quality 79 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2024-11-05; 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 hygiene71 · 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: x402_research_outline (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); x402_health (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); x402_sample_scrub (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
pass
tools.token_costabout 396 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

6 tools, about 396 tokens to load them all · tool set c0b58e6f0b01 · checked 2026-10-20 16:30 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 80 / 100

no-repository

provenance55

liveness100

freshness85

hygiene80

+dns-namespace +website +reachable +uptime-100% ~updated-89d-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://x402.devvizion.com/mcp` streamable-http	none	yes	100%	339 ms	2024-11-05	2026-10-20

Tools (6)

`x402_discovery`	Free x402 discovery document (resources, prices, payTo, facilitator, convertLadder).
`x402_health`	Free liveness + pricing for the money-engine Research API (x402 USDC on Base). Ladder: free sample_outline → outline 0.01 → brief 0.02.
`x402_research_brief`	Paid full research brief (0.02 USDC Base · upgrade). Free first: x402_sample_outline; optional outline 0.01 first. Body {topic}. Without paymentHeader returns 402 + accepts[].
`x402_research_outline`	Paid research outline (0.01 USDC Base · first pay). Free first: x402_sample_outline. Body {topic}. Without paymentHeader returns 402 + accepts[].
`x402_sample_outline`	FREE research teaser (3 bullets). Convert ladder: this tool → paid x402_research_outline 0.01 USDC → x402_research_brief 0.02 USDC Base. Body {topic?} default x402.
`x402_sample_scrub`	Free sample data-scrub / leak-guard teaser (dirty→clean demo). Alt path — primary convert is x402_sample_outline → outline 0.01.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.devvizion/x402-research",
  "title": "Money-Engine x402 Research",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://x402.devvizion.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.1.1",
  "websiteUrl": "https://x402.devvizion.com",
  "description": "Free agent discovery + paid x402 research (outline 0.01 / brief 0.02 USDC Base)."
}