probe402

com.probe402Published by probe402.comOfficial publisherv0.1.0Updated Oct 24, 2026

Independent health, price and history for x402/MPP endpoints. Metered over x402; free grade on web.

VerifiedStreamable HTTPWeb executableFinanceSecurity & Monitoring

Overview

AI-generated overview

Remote MCP server giving assistants independent health, price and history readings for x402 and MPP payment endpoints.

What you can do
  • Grade a single x402 or MPP endpoint: whether it is alive right now, what it quotes, and how fast it responds.
  • Retrieve historical readings for an endpoint, probed on a published schedule under one published rubric.
  • Distinguish blocked and rate-limited responses from genuinely unreachable endpoints, with each reading traceable to a retained capture.
When to use it
Useful when an assistant needs to check whether a machine-payment endpoint (x402 or MPP) is up, what it charges, and how its availability and pricing have changed over time before relying on or integrating it.
Requirements
A remote streamable HTTP endpoint at probe402.com; no packages, environment variables or headers declared. The history readings are metered over x402, so a payment-capable x402 client is needed for those; the grade is described as free on the web.
Before you install
History queries are metered over x402, meaning calls can incur payment; confirm pricing before use. Readings are third-party observations from the provider's own probing, not a guarantee of endpoint behavior.

Installation

In SourceWeft

  1. Open probe402 in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.probe402%2Fendpoint-history/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "probe402": {
      "type": "http",
      "url": "https://probe402.com/mcp"
    }
  }
}

Tools

2

probe402_endpoint_grade

Free grade: the current reading and 7 days of counts, by id or by URL

The Machine Commerce Observatory: independent readings of x402 and MPP endpoints — alive right now, quoting what, and how fast? Probed on a published schedule under one published rubric, every reading traceable to a retained capture. Blocked and rate-limited are told apart from unreachable at capture time, so a defended endpoint is never reported as dead. Call before paying an unfamiliar endpoint, or to check whether one you use has repriced or rotated its payTo. This tool is the FREE grade: current observation plus 7 days of counts, by endpoint_id or by url. The same record our published reports are written from.

Parametersurlendpoint_id

probe402_endpoint_history

Probe history, 30 days, $0.005 per call over x402

The Machine Commerce Observatory: independent readings of x402 and MPP endpoints — alive right now, quoting what, and how fast? Probed on a published schedule under one published rubric, every reading traceable to a retained capture. Blocked and rate-limited are told apart from unreachable at capture time, so a defended endpoint is never reported as dead. Call before paying an unfamiliar endpoint, or to check whether one you use has repriced or rotated its payTo.

Parametersendpoint_idrequired

Version history

1
  1. v0.1.0LatestSep 16, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.