com.midax402/mcp

by midax402.com · remote · no sign-in to list tools · v1.0.0 · published by com.midax402

Pay-per-query x402 business intelligence on Base, settled in USDC via the native 402 payment flow.

Final · 1Changes · 2

Compare Registry entry

5 tools: 1 do something that can't be undone, 2 change things and 2 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone1Claude Code: ask: see these tools
Changes things2Claude Code: ask: see these tools
Only reads2Claude Code: allow: see these tools

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http midax402 https://mcp.midax402.com/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

5 tools

Can't be undone 1Sends, pays, publishes or merges: once done, it cannot be taken back.Claude Code: ask

verify_before_payThe question to ask BEFORE paying any x402 service: does MIDAX have a signed conformance verdict for this URL?Can send data outNo findings
Why it is in this group
- The name "verify_before_pay" says "pay": a word that usually means money moves, which cannot be taken back.
What it can reach
- outboundThe input takes a URL (input.url): a request to a URL can carry data to whoever runs it.
Description, as the server wrote it
The question to ask BEFORE paying any x402 service: does MIDAX have a signed conformance verdict for this URL? FREE, ONE call. Returns the verdict with its age and freshness if one exists in MIDAX's signed registry, plus the authenticity verdict when that feature ships (always present in the payload, null with a note until then). If nothing exists yet, says so plainly and returns the exact price and route for the next paid step -- never a vague 'contact us'. Reads MIDAX's own registry only: it never probes the target live, so it adds minimal latency to your payment decision.

Changes things 2Creates or changes something that can be changed back.Claude Code: ask

get_market_verdictRuns a paid MIDAX402 analysis tier.No findings
Why it is in this group
- The name "get_market_verdict" says "get": a word for reading.
- The description's first verb is "run": a word for a change.
Description, as the server wrote it
Runs a paid MIDAX402 analysis tier. Payment is x402-native: called WITHOUT payment_signature it returns the HTTP 402 payment requirements (decoded + raw PAYMENT-REQUIRED header) for your x402-capable wallet to sign; call again WITH payment_signature (the signed payment proof, as sent in the PAYMENT-SIGNATURE header) to receive the full analysis. This server NEVER holds keys and never signs — your wallet does.
verifyChecks x402 protocol conformance for a target service URL: a live 402 probe (well-formed challenge, non-empty accepts, atomic-unit amounts) plus price coherence against the target'…Can send data outNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
What it can reach
- outboundThe input takes a URL (input.url): a request to a URL can carry data to whoever runs it.
Description, as the server wrote it
Checks x402 protocol conformance for a target service URL: a live 402 probe (well-formed challenge, non-empty accepts, atomic-unit amounts) plus price coherence against the target's own well-known. PAID ($0.10 USDC via x402). This MCP server holds no wallet, so calling this tool returns the upstream payment requirements rather than a result — pay them with your own x402 client, or call the endpoint directly. A signed, permanently published attestation of the same check is available at /midas-ops/attest ($0.50). Does NOT measure output quality, uptime history, or on-chain transaction volume — see the returned scope_note.

Only reads 2Looks things up and changes nothing.Claude Code: allow

get_sampleFree sample of MIDAX402's analysis: returns ONLY the calibrated verdict and confidence score for an x402-ecosystem question, plus pointers to the paid tiers that serve the full ana…No findings
Why it is in this group
- The name "get_sample" says "get": a word for reading.
Description, as the server wrote it
Free sample of MIDAX402's analysis: returns ONLY the calibrated verdict and confidence score for an x402-ecosystem question, plus pointers to the paid tiers that serve the full analysis. Rate-limited; the full analysis is the paid product.
list_tiersLists the paid analysis tiers with their CANONICAL prices, fetched live from https://midax402.com/.well-known/x402 (resource_details) — the same first-party source directories craw…Reads private dataReads text others writeNo findings
Why it is in this group
- The name "list_tiers" says "list": a word for reading.
What it can reach
- private-dataThe description's first sentence says "list" and "directory": it reads files.
- untrusted-inputThe description's first sentence says "crawl": it reads web pages, which anyone can write.
Description, as the server wrote it
Lists the paid analysis tiers with their CANONICAL prices, fetched live from https://midax402.com/.well-known/x402 (resource_details) — the same first-party source directories crawl, so it can never drift.

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

2 paths in this server alone from private data, through text someone else wrote, to a way out. Denying 1 untrusted-input tool breaks every one.

Reads private data1: Reads files, mail, messages, databases, secrets, calendars or repositories.; list_tiers
Reads text others write1: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; list_tiers
Can send data out2: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.; verify
verify_before_pay

deny to break every path

{
  "permissions": {
    "deny": [
      "mcp__midax402__list_tiers"
    ]
  }
}

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Looked at Oct 22, 2026, 14:36 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable: yes
HTTP status of an anonymous initialize: 200
tools/list served without credentials: yes
Tools that change things, listed without credentials: 3
Protocol version: 2025-06-18
WWW-Authenticate on 401: not observed
resource_metadata in WWW-Authenticate: none
RFC 9728 protected resource metadata: none
Authorization servers: none
Legacy HTTP+SSE transport: no
Dynamic client registration: not observed
Client ID metadata documents: not observed

HighThe whole server
The endpoint served tools/list without credentials, and the list has 3 tools that change things (1 irreversible, 2 write). Whether a call also works without credentials was not tested: tools are never called.
Matched text
https://mcp.midax402.com/mcp: tools/list returned 5 tools to an anonymous client, including verify_before_pay (irreversible), get_market_verdict (write), verify (write)
What this check looks for

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http midax402 https://mcp.midax402.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__midax402__list_tiers",
      "mcp__midax402__get_sample"
    ],
    "ask": [
      "mcp__midax402__get_market_verdict",
      "mcp__midax402__verify",
      "mcp__midax402__verify_before_pay"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as midax402. Review it before you use it.

Capability tags behind 3 rules

mcp__midax402__list_tiers private-data, untrusted-input
mcp__midax402__verify outbound
mcp__midax402__verify_before_pay outbound

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.midax402/mcp/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Anlyon alternative

3 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Compare with other servers for the same product.

Source: MCP Registry · repository. Synced Oct 21, 2026, 17:59 UTC.

For agents: Markdown · JSON · report this listing