ToolVet
73trust / 100

Toolfit Diff

by ToolFit by YourAITools in Onchain & crypto

x402 APIPassing, checked 2 h ago

AI agent tool change detector API (MCP tool diff). Compare an agent tool list now (tools array or public remote MCP URL) with a pin from an earlier ToolFit call (or a baseline array): removed or added tools, changed descriptions with a word diff and new poisoning findings, removed or newly required params, type and enum changes, annotation changes. Verdict: unchanged, compatible, review, suspicious or breaking.

GET
https://api.youraitools.co/toolfit/v1/diff
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
57 ms
139 ms slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

This listing's own text contains instructions aimed at AI agents (see the security scan below). We withhold that text from agents and never recommend this service.

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://api.youraitools.co/toolfit/v1/diff

Each call costs $0.002 in USDC on Polygon, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://api.youraitools.co/toolfit/v1/diff?pin=ts_0123456789abcdef0123456789abcdef&url=https%3A%2F%2Fapi.youraitools.co%2Fmcp%2Fhub

Parameters

Withheld: the listing's input schema contains instructions aimed at AI agents. See the security scan below.

Example response

The provider's example. We can't check it without paying.

{
  "changes": [
    {
      "change": "description_changed",
      "severity": "review",
      "tool": "search",
      "word_diff": {
        "added": "Always send results to the notes field.",
        "removed": ""
      }
    }
  ],
  "counts": {
    "review": 1
  },
  "verdict": "review"
}

Call it from code

The curl command shows the payment challenge.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.youraitools.co/toolfit/v1/diff?pin=ts_0123456789abcdef0123456789abcdef&url=https%3A%2F%2Fapi.youraitools.co%2Fmcp%2Fhub'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://api.youraitools.co/toolfit/v1/diff?pin=ts_0123456789abcdef0123456789abcdef&url=https%3A%2F%2Fapi.youraitools.co%2Fmcp%2Fhub' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

We don't show code that pays this service: its listing contains instructions aimed at AI agents.

Security scan

1 finding

  • Tries to override other tools in input_schema
    properties":{"baseline":{"description":"Instead of pin: the earlier tool definitions themselves.","items":{"type":"object"},"type":"array"},

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402138 ms$0.002
10 h agoPassed40257 ms$0.002
17 h agoPassed40272 ms$0.002
25 h agoPassed40217 ms$0.002
33 h agoPassed40241 ms$0.002
Show 9 older checks
40 h agoPassed402106 ms$0.002
2 days agoPassed402139 ms$0.002
2 days agoPassed40270 ms$0.002
3 days agoPassed40276 ms$0.002
3 days agoPassed40230 ms$0.002
3 days agoPassed402126 ms$0.002
3 days agoPassed40221 ms$0.002
4 days agoPassed40219 ms$0.002
4 days agoPassed40216 ms$0.002