Koskamo

aptu.dev MCP

Machine-payable API infrastructure for autonomous agents providing instant per-call settlement via x402 using USDC on Base or Solana. It exposes tools for echo probing, BTC regime analysis, resume evaluation, and agent readiness auditing.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

aptu.dev MCP logo, by aptu.devCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-07Published by aptu.dev
You need:No account, no API key, no signup
MCP endpoint (Streamable HTTP)
https://aptu.dev/mcp
Vendor documentation

What its tools do

5 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

5 of 5 have a description · 0 of 5 declare behavior hints · 5 of 5 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Perform paid echo probes to test agent connectivity
  • Analyze BTC spot regime against 7-day moving average
  • Score resumes against ATS rubrics
  • Audit domain agent readiness and generate artifacts

Source and maintenance

Community listingRegistry 1.0.0

Protocol and capabilities

Server
aptu-dev 1.0.0
MCP protocol negotiated in check
2025-11-25
Tools
5 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": true
  }
}

Tools

5 advertised

echo_probe
Advertised by the server during the last successful anonymous check.

Echoes a JSON {message} back; the simplest paid call for verifying your x402 payment flow.

echo_probe input schema
{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "message"
  ],
  "properties": {
    "message": {
      "type": "string",
      "maxLength": 10000,
      "description": "Message to echo back"
    },
    "payment_signature": {
      "type": "string",
      "description": "x402 payment signature once settled"
    }
  }
}
resume_eval
Advertised by the server during the last successful anonymous check.

Scores a resume 0-4 against an ATS rubric (impact, parseability, executive framing, contact).

resume_eval input schema
{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "resume_text",
    "format"
  ],
  "properties": {
    "format": {
      "enum": [
        "markdown",
        "typst",
        "json"
      ],
      "type": "string",
      "description": "Output format"
    },
    "resume_text": {
      "type": "string",
      "description": "Full resume text"
    },
    "job_description": {
      "type": "string",
      "description": "Target job description"
    },
    "payment_signature": {
      "type": "string",
      "description": "x402 payment signature once settled"
    }
  }
}
agent_readiness
Advertised by the server during the last successful anonymous check.

Audits a domain's agent readiness against the aptu-readiness-1 rubric (origin headers, robots.txt, llms.txt, sitemap, agents.txt, skill.md, JSON-LD, mcp.json, A2A card, x402 manifest), weighted 0-100; rubric: https://aptu.dev/agent-readiness-checks

agent_readiness input schema
{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "description": "Domain to audit, e.g. example.com"
    },
    "payment_signature": {
      "type": "string",
      "description": "x402 payment signature once settled"
    }
  }
}
btc_regime
Advertised by the server during the last successful anonymous check.

BTC spot regime check against a 7-day moving average gate (bull/bear, MA7, deviation pct, favor-entry/block-entry action).

btc_regime input schema
{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "spot"
  ],
  "properties": {
    "spot": {
      "type": "number",
      "description": "BTC spot price in USD"
    },
    "closes": {
      "type": "string",
      "description": "CSV of exactly 7 daily closes, oldest first"
    },
    "payment_signature": {
      "type": "string",
      "description": "x402 payment signature once settled"
    }
  }
}
x402_preflight
Advertised by the server during the last successful anonymous check.

Seller-side x402 protocol conformance pre-flight check for a deployed resource URL (schema validation, mechanism reachability, facilitator cross-check, advisory scar-tissue findings) with a graded 0-100 report and per-failure remedies.

x402_preflight input schema
{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "maxLength": 2048,
      "description": "Absolute https URL of the deployed resource to probe"
    },
    "payment_signature": {
      "type": "string",
      "description": "x402 payment signature once settled"
    }
  }
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (1 of 1 answered).

  1. 2026-11-07: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
655 ms
95th percentile latency
655 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 655 ms · metadata changed · 5 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http aptu-dev-mcp https://aptu.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add aptu-dev-mcp --url https://aptu.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable aptu-dev-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "aptu-dev-mcp": {
      "url": "https://aptu.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "aptu-dev-mcp": {
      "type": "streamableHttp",
      "url": "https://aptu.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start aptu-dev-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "aptu-dev-mcp": {
      "type": "http",
      "url": "https://aptu.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http aptu-dev-mcp https://aptu.dev/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://aptu.dev/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "aptu-dev-mcp": {
      "serverUrl": "https://aptu.dev/mcp"
    }
  }
}

Let your agent find its tools

Find servers like aptu.dev MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.