io.github.danielarif26由 GitHub 账号 danielarif26 发布v3.1.0更新于 Oct 24, 2026
Ten x402-paid tools for JSON, YAML, cron, diff, text, DNS, WHOIS, GitHub, crypto, and email.
远程 MCP 服务器，提供九种小型数据工具——JSON 修复、YAML 转换、cron、diff、文本提取、DNS、WHOIS、GitHub 统计和邮箱校验，按次付费。
Web executable，通过 Streamable HTTP。 远程服务在工作区中配置后即可从网页运行时运行。
把这段提示词粘贴到 Claude Code、Codex、Cursor 等智能体，或 SourceWeft 对话中。智能体会读取该服务器的安装指南，先向你展示发布者、端点和登录方式，经你同意后再把它添加到你的客户端。密钥不会写进任何命令。
阅读 https://sourceweft.com/mcp/io.github.danielarif26%2Fpenniless-data-utilities/install.md，并按其中说明把这个 MCP 服务器接入我的客户端。修改任何配置之前，先告诉我它的发布者、端点和登录方式，等我确认。不要把 API 密钥写进命令或我会提交的文件；问我密钥应从哪里获取。把它添加到你客户端的 mcpServers 配置中。
{
"mcpServers": {
"penniless-data-utilities": {
"type": "http",
"url": "https://penniless-json-repair.sjaman.workers.dev/mcp"
}
}
}Nine deterministic data and lookup tools for AI agents, paid per call in USDC. REST advertises both native MPP and x402; MCP uses x402 v2. No accounts, no API keys, no rate-limit tiers. Every tool is pure computation or a keyless public lookup — none of them call another AI model, so results are reproducible.
/health, /openapi.json, /llms.txt, /.well-known/x402$0.001 USDC per call. REST advertises native MPP plus x402 v2 (eip155:8453, scheme exact); MCP uses x402 v2.
Base x402 settlements are verified by the free-tier PayAI facilitator. Native MPP is negotiated by mppx. Recipient (payTo): 0x3D98800c64C345950E1eAaa076D88C12d1BF5F37.
Any MCP client that speaks streamable HTTP can connect directly:
The transport is stateless — no session id is issued or required, and every
request is independent. initialize and tools/list are free. An unpaid
tools/call returns an x402 payment-required payload in result.content[0].text
(and result.structuredContent); attach the signed payment as
params._meta["x402/payment"] and repeat the call.
If you use an x402-aware MCP client, @x402/mcp handles that exchange for you.
POST /diagnose is free: it classifies what is wrong with a malformed JSON
payload without returning the repaired output, so a caller can check whether
paying is worthwhile before paying.
Any x402 v2 client works. With the reference TypeScript client and a viem account:
wrapFetchWithPayment handles the 402 round-trip: it receives the requirement,
signs the USDC authorization, retries, and only returns a 200 once the
facilitator has settled.
Environment (set in wrangler.toml): X402_NETWORK, X402_FACILITATOR,
X402_PRICE, X402_PAY_TO. Production also has an encrypted Cloudflare secret
MPP_SECRET_KEY used only to authenticate MPP challenges. Wallet private keys are
never deployed to the Worker.
GitHub: @danielarif26
来源：README.md，提交 3137a15
Penniless JSON Repair
Repairs malformed LLM JSON: strips Markdown fences and prose wrappers, fixes trailing commas, converts Python literals (True/False/None) and single/unquoted keys, removes comments, recovers balanced JSON from truncated output. Body {input} -> {ok, repaired, applied}. Costs $0.001 USDC on Base per call.
input必填Penniless YAML to JSON
Converts a YAML subset (block maps, sequences, nested indentation, scalars, comments) into JSON with no runtime dependency. Body {input} -> {ok, value, warnings}. Costs $0.001 USDC on Base per call.
input必填Penniless Cron Next Run
Computes the next UTC fire time for a 5-field cron expression (supports steps, ranges, lists, and month/weekday names). Body {expr, after?} -> {ok, next, epochMs}. Costs $0.001 USDC on Base per call.
expr必填afterPenniless Text Diff
Produces a unified diff plus added/removed counts between two texts (LCS line diff, configurable context lines). Body {old, new, context?} -> {ok, identical, added, removed, hunks, unified}. Costs $0.001 USDC on Base per call.
new必填old必填contextPenniless Text Extract
Extracts clean text, title, headings, links, URLs, and emails from HTML or plain text. Body {input, numbers?, codeBlocks?} -> {ok, source, title, headings, links, urls, emails, text}. Costs $0.001 USDC on Base per call.
input必填numberscodeBlocksPenniless WHOIS Lookup
Structured WHOIS via RDAP for any domain: registrar, IANA id, statuses, expiry/registration dates, nameservers, DNSSEC. Body {domain} -> {ok, found, domain, registrar, status[], events{}, nameservers[], dnssec}. Costs $0.001 USDC on Base per call.
domain必填Penniless DNS Lookup
JSON DNS-over-HTTPS lookup for A, AAAA, CNAME, MX, TXT, NS, SOA, PTR, SRV, CAA. Body {domain, type?} -> {ok, domain, type, status, answers[]}. Costs $0.001 USDC on Base per call.
typedomain必填Penniless GitHub Repo Stats
Popularity and metadata for any public GitHub repo: stars, forks, open issues, watchers, language, license, topics, last push. Body {repo} -> {ok, found, stars, forks, openIssues, language, license, pushedAt}. Costs $0.001 USDC on Base per call.
repo必填Penniless Email Validate
Email deliverability check: RFC-style syntax plus live MX probe of the domain. Body {email} -> {ok, valid, formatValid, domainHasMx, mx[]}. Costs $0.001 USDC on Base per call.
email必填已满足适用检查项的 90%
该评分衡量此收录条目的完整程度，依据注册中心条目、端点与公开来源计算得出。它不是对服务器本身的评价，也不表示服务器安全或当前可用：可连通性是带日期的检查结果，评分也不包含安装量或用户评价。
请在仓库或注册中心条目中声明许可证。
{ "mcpServers": { "penniless-data-utilities": { "type": "http", "url": "https://penniless-json-repair.sjaman.workers.dev/mcp" } }}import { x402Client } from "@x402/core/client";import { registerExactEvmScheme } from "@x402/evm/exact/client";import { wrapFetchWithPayment } from "@x402/fetch";import { privateKeyToAccount } from "viem/accounts";
const client = new x402Client();registerExactEvmScheme(client, { signer: privateKeyToAccount(key), networks: ["eip155:8453"] });const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://penniless-json-repair.sjaman.workers.dev/repair/json", { method: "POST", headers: { "content-type": "application/json" }, body: JSON.stringify({ input: "{foo: 'bar',}" }),});// -> { ok: true, repaired: { foo: "bar" }, applied: ["unquoted-keys","single-quotes","trailing-commas"] }npm installnpm test # 133 tests, runs fully offline (facilitator + upstream are injected)npx wrangler devnpx wrangler deploy