ToolVet
78trust / 100

Mcp Registry Server Json File

by MCP Registry Listing Writer in Developer tools

x402 APIPassing, checked 4 h ago

MCP Registry Listing Writer — Writes the server.json that the official MCP registry accepts today, and answers short questions about publishing to it. Uses the current dated schema address, a name that matches the way the publisher proves ownership (GitHub login or domain), a description of at most 100 characters and one entry per package type with the ownership proof the registry checks at publish - mcpName in package.json for npm, the mcp-name line in the README for PyPI, NuGet and Cargo, a l…

GET
https://api.aiskills402.com/v1/skills/mcp-registry-server-json/file
Price
$0.05
per call in USDC
Uptime
100%
last 30 days
Response time
84 ms
128 ms slowest 5%
Last check
Passed
4 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

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

How to call it

GET https://api.aiskills402.com/v1/skills/mcp-registry-server-json/file

Each call costs $0.05 in USDC on Base, 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

The listing has no example input.

GET https://api.aiskills402.com/v1/skills/mcp-registry-server-json/file

Example response

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

{
  "file": {
    "content": "<the SKILL.md file>",
    "encoding": "utf-8",
    "name": "SKILL.md"
  },
  "name": "MCP Registry Listing Writer",
  "ok": true,
  "receipt": {
    "settled": true,
    "tx": "0x<settlement transaction>"
  },
  "redownload": {
    "token": "<64 hex chars>",
    "url": "<api>/v1/purchases/<token>"
  },
  "sha256": "<sha256 of SKILL.md>",
  "skill": "mcp-registry-server-json",
  "version": "1.0.0"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.05.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.aiskills402.com/v1/skills/mcp-registry-server-json/file'

# 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.aiskills402.com/v1/skills/mcp-registry-server-json/file' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.aiskills402.com%2Fv1%2Fskills%2Fmcp-registry-server-json%2Ffile
const res = await pay("https://api.aiskills402.com/v1/skills/mcp-registry-server-json/file");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.aiskills402.com/v1/skills/mcp-registry-server-json/file")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
4 h agoPassed40282 ms$0.05
9 h agoPassed402128 ms$0.05
13 h agoPassed40284 ms$0.05
17 h agoPassed40277 ms$0.05
22 h agoPassed40296 ms$0.05