Skip to content
verify mcp Beta VerifyMCP is currently in beta. If you notice any issues, get in touch and we’ll put it right.

io.github.ryudi84/api-tester

NPM · SOVEREIGN-API-TESTER-MCP · SCANNED SEP 20

MCP server for API testing: HTTP requests, cURL generation, health checks.

0 this week 82 Trust /100
Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →

Supply Chain Security98
  • No malware found by supply-chain analysis.Pass
  • No known CVEs affecting this package version or its production dependencies.Pass
  • No install/post-install scripts declared.Pass
  • 31 of 95 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
Schema Quality & AI Usability69
  • AI-judged instruction clarity (good).Pass
  • Tool/resource definitions use about 387 tokens (~77/item across 5 items; 5 tools + 0 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management93
  • Stability observed for 28 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Install

How do I install the io.github.ryudi84/api-tester MCP server?

io.github.ryudi84/api-tester runs locally as an npm package, launched with npx -y sovereign-api-tester-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

npm · sovereign-api-tester-mcp

# add to Claude Code
claude mcp add ryudi84-api-tester -- npx -y sovereign-api-tester-mcp
// .cursor/mcp.json
{
  "mcpServers": {
    "ryudi84-api-tester": {
      "command": "npx",
      "args": [
        "-y",
        "sovereign-api-tester-mcp"
      ]
    }
  }
}
// .vscode/mcp.json
{
  "servers": {
    "ryudi84-api-tester": {
      "command": "npx",
      "args": [
        "-y",
        "sovereign-api-tester-mcp"
      ]
    }
  }
}
# add to Codex CLI
codex mcp add ryudi84-api-tester -- npx -y sovereign-api-tester-mcp
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ryudi84-api-tester": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "sovereign-api-tester-mcp"
      ],
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add ryudi84-api-tester --command npx --arg -y --arg sovereign-api-tester-mcp
# ~/.hermes/config.yaml
mcp_servers:
  ryudi84-api-tester:
    command: "npx"
    args: ["-y", "sovereign-api-tester-mcp"]
// ~/.netclaw/config/netclaw.json
{
  "McpServers": {
    "ryudi84-api-tester": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "sovereign-api-tester-mcp"
      ]
    }
  }
}
# add to Vellum
assistant mcp add ryudi84-api-tester -t stdio -c npx -a -y sovereign-api-tester-mcp
// mcp.json
{
  "mcpServers": {
    "ryudi84-api-tester": {
      "command": "npx",
      "args": [
        "-y",
        "sovereign-api-tester-mcp"
      ]
    }
  }
}
Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 20 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.

  • 18 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.

  • 16 Sept 26 −3
    • Stability: pass → 0.80 functional
  • 15 Sept 26 +1
    • Stability: 0.97 → pass security
  • 13 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.

  • 11 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.

  • 9 Sept 26 −3
    • Stability: pass → 0.80 functional
  • 8 Sept 26 +1
    • Stability: 0.97 → pass security
Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 20 Sept 2026 · Analysed npm/sovereign-api-tester-mcp@1.0.0

Provenance No attestation

The registry publishes no build provenance for this version, so there is nothing to verify.

Result No attestation
Ecosystem npm

Background: How many MCP packages publish verified provenance →

Dependencies 95 packages
Packages resolved 95
Stale 31
Tree resolution Complete

Background: SBOMs and build attestations, explained →

MCP tools · 5 exposed · ~352 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
api_health_check ~40

Check health of multiple API endpoints simultaneously. Shows UP/DOWN status table with response times.

NameTypeReqDescription
urlsarrayyesList of endpoint URLs to check

No output schema declared.

No examples provided.

generate_curl ~68

Generate a cURL command from method, URL, headers, and body parameters.

NameTypeReqDescription
bodystringRequest body (JSON string)
headersobjectRequest headers as key-value pairs
methodstringHTTP method
urlstringyesRequest URL

No output schema declared.

No examples provided.

http_request ~89

Make an HTTP request (GET, POST, PUT, DELETE, PATCH) with custom headers and body. Returns status, timing, response headers, and body.

NameTypeReqDescription
bodystringRequest body (JSON string for POST/PUT/PATCH)
headersobjectRequest headers as key-value pairs
methodstringHTTP method
urlstringyesRequest URL

No output schema declared.

No examples provided.

mock_response ~68

Generate realistic mock JSON responses for API prototyping. Supports resource types: user, product, order, post, comment.

NameTypeReqDescription
countnumberNumber of items to generate (1-50)
resourcestringyesResource type: user, product, order, post, or comment

No output schema declared.

No examples provided.

test_endpoint ~87

Test an API endpoint with expected status code validation and optional JSON field checks. Shows PASS/FAIL for each check.

NameTypeReqDescription
expected_fieldsarrayDot-notation JSON field paths expected in response (e.g. 'data.id')
expected_statusnumberExpected HTTP status code
methodstringHTTP method
urlstringyesEndpoint URL to test

No output schema declared.

No examples provided.

Common questions

What is the io.github.ryudi84/api-tester MCP server?

io.github.ryudi84/api-tester is an MCP server listed in the public MCP registry as io.github.ryudi84/api-tester. MCP server for API testing: HTTP requests, cURL generation, health checks. This page covers its npm package (sovereign-api-tester-mcp).

Is the io.github.ryudi84/api-tester MCP server safe to use?

io.github.ryudi84/api-tester scores 82 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the io.github.ryudi84/api-tester MCP server expose?

io.github.ryudi84/api-tester exposes 5 tools: http_request, test_endpoint, generate_curl, mock_response, api_health_check. Their descriptions and schemas cost roughly 352 tokens of context every time the server is loaded.

Is the io.github.ryudi84/api-tester MCP server still maintained?

io.github.ryudi84/api-tester is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

What licence is the io.github.ryudi84/api-tester MCP server under?

io.github.ryudi84/api-tester declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.