MoneyTools Tools

dev.moneytoolsPublished by moneytools.devOfficial publisherv1.0.0Updated Nov 4, 2026

25 read-only agent utilities: token safety, approvals, tx decode, EIP-712 risk, DNS, time; free tier

The publisher's own server: MoneyTools x402 agent toolkit

VerifiedStreamable HTTPWeb executableFinanceDeveloper ToolsSecurity & Monitoring

Overview

AI-generated overview

Remote MCP server of read-only crypto, web and developer utilities: token safety, approvals, transaction decoding, DNS and time checks.

What you can do
  • Check tokens and wallets: token safety simulation, ERC-20 info, balances, address profiles, ENS resolution and availability, NFT metadata, Safe multisig details, vault facts
  • Inspect and prepare transactions: explain or decode transactions and calldata, flag EIP-712 signing risks, plan approval revokes, encode calldata, read contracts, fetch logs and ABIs, check tx status
  • Check market and chain data: gas comparison across chains, DEX quotes, stablecoin pegs, bridge status, block lookup by time, RPC health, chain info
  • Inspect web and domains: HTTP headers, URL metadata, DNS records, domain registration, robots.txt rules, x402 endpoint linting
  • Convert and validate: time zones, cron schedules…
When to use it
Useful when an assistant needs to vet a token or address, explain or sanity-check a transaction before a human signs it, or run quick DNS, HTTP and domain checks. It suits agents that want many small read-only lookups without managing their own RPC keys.
Requirements
Remote streamable HTTP endpoint; no installation, key or wallet needed for the free tier of 10 calls per tool per day. More calls need the X-API-Key header (prepaid credits or a monthly plan) or per-call x402 payment in USDC on Base. Network access to the endpoint and its upstream data sources.
Before you install
Beyond the free daily quota, calls cost money: per-call x402 USDC payments on Base or prepaid credits; failed calls are not charged. Tools are read-only and never sign or hold funds, but the revoke and encode tools return unsigned transactions that a human or wallet must review before signing. Lookups send addresses, URLs and domains to third-party data providers.

Installation

In SourceWeft

  1. Open MoneyTools Tools in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/dev.moneytools%2Ftools/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "moneytools-tools": {
      "type": "http",
      "url": "https://tools.moneytools.dev/mcp"
    }
  }
}

Tools

104

token_safety_check

Token safety round-trip check

Before buying an ERC-20: simulates USDC→token→USDC with aggregator quotes and reads the contract (owner, proxy, paused, supply). Flags no-sell-route (honeypot pattern), high round-trip loss (tax / thin liquidity). Free: 10 calls/day; then $0.003 via the HTTP endpoint or X-API-Key credits.

Parametersusdchainrequiredtokenrequired

address_profile

Address profile (7 chains)

Profile an EVM address or ENS name across Ethereum, Base, Arbitrum, Optimism, Polygon, BSC, Avalanche: EOA vs contract vs EIP-7702 delegated, nonce, native balances in USD, primary ENS name, known-contract label. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parameterschainsaddressrequired

ens_resolve

ENS resolve / reverse

Resolve an ENS name to an address (+ url/avatar/twitter/github records, optional L2 addresses), or an address to its primary ENS name with forward verification. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersnamechainsaddress

gas_compare

Multi-chain gas estimator

Current gas on 7 EVM chains: base fee, priority fee, suggested maxFee, and the USD cost of a transfer, ERC-20 transfer, approve and DEX swap. Tells you the cheapest chain right now. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterschains

erc20_info

ERC-20 token facts + balance

Name, symbol, decimals, total supply, owner, paused, upgradeable-proxy detection and (optional) a holder's balance for any ERC-20. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterschainrequiredtokenrequiredholder

allowance_revoke_plan

Token approvals + revoke plan

Find risky ERC-20 approvals for a wallet (default: common tokens × 20 well-known routers/spenders, or your own lists) and get UNSIGNED approve(spender,0) revoke transactions. Read-only. Free: 10 calls/day; then $0.003 via the HTTP endpoint or X-API-Key credits.

Parameterschainrequiredownerrequiredtokensspenders

tx_explain

Transaction explainer

Explain a transaction in plain words: status, fee in USD, decoded method and arguments, token/NFT transfers, approvals (incl. unlimited / setApprovalForAll), other events. Free: 10 calls/day; then $0.003 via the HTTP endpoint or X-API-Key credits.

Parametershashrequiredchainrequired

calldata_decode

Calldata decoder

Decode raw EVM calldata before signing: function name and typed arguments via the open Sourcify signature DB (or your ABI / signature), plus a plain-language meaning for risky selectors (approve, setApprovalForAll, permit...). Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersabidatarequiredsignature

contract_abi

Verified contract ABI

Fetch a verified contract's ABI from Sourcify (open data) with proxy resolution: implementation ABI merged, function and event signature lists. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parametersfullchainrequiredaddressrequired

signature_verify

Signature verifier (EOA + smart wallets)

Verify a personal_sign message or EIP-712 typed-data signature against an address, including smart-contract wallets (ERC-1271 / ERC-6492). Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

ParameterschainaddressrequiredmessagesignaturerequiredtypedData

typed_data_risk

EIP-712 signature risk check

Before an agent signs EIP-712 data: identifies Permit / Permit2 / EIP-3009 (x402) / Seaport / CoW / delegation messages, explains them in one sentence and flags unlimited amounts, far deadlines, unknown spenders and NFT-drain listings. Free: 10 calls/day; then $0.003 via the HTTP endpoint or X-API-Key credits.

ParameterstypedDatarequiredexpectedChainId

x402_validate

x402 endpoint validator

Lint any x402 paid endpoint like a client would: 402 status, PAYMENT-REQUIRED header decode, CAIP-2 network, integer amount, payTo/asset, EIP-712 domain extra, CORS expose headers, bazaar discovery, /.well-known/x402. Score + fixes. Unpaid request only. Free: 10 calls/day; then $0.003 via the HTTP endpoint or X-API-Key credits.

Parametersurlrequiredmethod

http_inspect

HTTP / API inspector

Fetch a URL and report status, redirect chain, latency, size, cache headers, CORS, parsed rate-limit headers (RateLimit-*, X-RateLimit-*, Retry-After) and a security-headers grade. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parametersurlrequiredmethod

url_metadata

Page metadata / Open Graph

Title, description, canonical, language, favicon, Open Graph + Twitter card, JSON-LD types, feeds, word count and what's missing for link previews. Metadata only, not page content. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parametersurlrequired

dns_lookup

DNS + email-auth lookup

A/AAAA/CNAME/MX/TXT/NS/CAA (or chosen types) via DNS-over-HTTPS, DNSSEC flag, SPF/DMARC/DKIM detection and common misconfigurations. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterstypesdomainrequired

domain_rdap

Domain registration (RDAP)

Registrar, creation/expiry dates, age in days, status codes, nameservers and DNSSEC from RDAP; flags very new domains (phishing signal) and near expiry. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parametersdomainrequired

robots_check

robots.txt / AI-crawler check

May this user agent fetch this URL? RFC 9309 evaluation of robots.txt with the matching rule, crawl-delay, sitemaps, llms.txt presence and an allow/deny table for 12 AI crawlers. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

ParametersurlrequireduserAgent

json_schema_validate

JSON Schema validator

Validate JSON data against a JSON Schema (draft 4, 7, 2019-09, 2020-12) and get precise error paths. Use it to check tool outputs or API payloads. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersdatarequireddraftschemarequired

time_convert

Time-zone converter & date math

op=now|convert|diff|add: current time in many zones, convert a local time between IANA zones (DST-aware), difference incl. business days, add ISO-8601 durations. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersoptotzaddenddatetime

cron_next_runs

Cron next-run calculator

Next N run times of a 5-field cron expression (or @daily etc.) in any IANA time zone, with a plain-language description. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterstzcountexpressionrequired

currency_convert

Currency converter

Convert fiat amounts with daily reference rates (ECB via Frankfurter; other currencies e.g. TWD from ExchangeRate-API open access, attributed). Not tradable quotes. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterstorequiredfromrequiredamount

unit_convert

Unit converter

Length, mass, volume, area (incl. 坪/ping), speed, time, data (KB vs KiB), energy, pressure, temperature and exact wei/gwei/ETH conversion. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterstorequiredfromrequiredvaluerequired

hash_encode

Hash / encode / decode

sha256/sha1/sha512/md5/keccak256, function selector, HMAC-SHA256, base64(url), hex, URL encoding, UUIDs, JWT decode (unverified), EVM checksum address. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

ParametersoprequiredkeyinputinputEncoding

nft_metadata

NFT metadata + owner

ERC-721/1155 token: standard, collection name, owner, tokenURI resolved (IPFS/Arweave/data URI) and the metadata JSON with image URL; says whether metadata is on-chain, IPFS or a mutable server. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

ParameterschainrequiredtokenIdrequiredcontractrequired

tx_status

Transaction status + confirmations

Is my transaction pending, confirmed, reverted or not found? Confirmations and a per-chain finality hint. Cheap polling for agents waiting on a tx. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametershashrequiredchainrequired

block_at_time

Block number at a timestamp

Find the last block at or before a date/time on any of 7 EVM chains (interpolation search). For historical balance queries, snapshots and log ranges. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterschainrequiredtimestamprequired

rpc_health

Public RPC health & latency

Probe the keyless public RPC endpoints of 7 EVM chains right now: up/down, latency, head block, lag. Returns the recommended RPC per chain. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parameterschains

chain_info

Chain registry lookup

Chain id → name, native currency, public RPCs, explorers, CAIP-2 id and a ready wallet_addEthereumChain object (ethereum-lists/chains, CC0). Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

ParameterschainIdrequired

stablecoin_peg

Stablecoin peg monitor

Current price and deviation in bps for 15 major stablecoins (USDT, USDC, DAI, USDS, USDe, PYUSD, FDUSD, EURC...) with on_peg / watch / depeg status. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterssymbols

bridge_status

Cross-chain transfer status

Track a bridge transfer by its source tx hash: pending / done / failed, bridge used, sending and receiving tx with amounts (LI.FI public status API). Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

ParametershashrequiredfromChain

dex_price

Token price from DEX quotes

Executable-style price of any ERC-20 in USDC from DEX aggregator quotes (KyberSwap, quote only), price impact at a chosen size, route DEXes and deviation vs DefiLlama reference. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

ParameterschainrequiredtokenrequiredsizeUsd

safe_multisig_info

Safe multisig inspector

Is this address a Safe multisig? Owners, threshold (m-of-n), nonce, version, enabled modules, guard, fallback handler, plus risk warnings (1-of-n, modules). Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parameterschainrequiredaddressrequired

contract_read

Read any contract (eth_call)

Call any view function with a human signature and args, e.g. balanceOf(address) returns (uint256); decoded result. Optional historical block. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersargsblockchainrequiredaddressrequiredsignaturerequired

abi_encode

ABI-encode calldata

Build calldata from a function signature and arguments (selector + encoded args). Unsigned bytes only, for agents preparing a tx for a human or wallet to review. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersargsrequiredsignaturerequired

proxy_inspect

Proxy / upgradeability inspector

Is this contract upgradeable? Detects EIP-1967 (impl/admin/beacon), EIP-1167 clones, legacy OZ and Safe-style proxies and EIP-7702 delegated EOAs; returns implementation and admin. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterschainrequiredaddressrequired

event_logs

Contract event logs (decoded)

Recent events of a contract (≤5000 blocks), decoded with your event signature or automatically via the open Sourcify signature DB. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

ParameterschainrequiredeventlimitblocksaddressrequiredtoBlockfromBlock

token_balances

Wallet token balances

Native + ERC-20 balances for a wallet in one multicall: major tokens on the chain by default or your own list of token addresses/symbols. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parameterschainrequiredownerrequiredtokens

ens_available

ENS name availability

Is name.eth available? Registered / grace period / available, expiry date, yearly base price and registration link. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersnamerequired

erc4626_vault

ERC-4626 vault reader

Yield vault facts: underlying asset, total assets, share price (assets per share), deposits open, and a holder's position. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parameterschainrequiredvaultrequiredholder

address_validate

Multi-chain address validator

Which network is this address for, and is it well-formed? EVM checksum, Bitcoin (legacy/P2SH/SegWit/Taproot), Litecoin, Dogecoin, Tron, Solana, Cosmos bech32, TON. Catches typos before sending. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersaddressrequired

solana_account

Solana account + token balances

SOL balance (USD), account type (wallet/program), and SPL + Token-2022 balances for any Solana address via public RPC. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parametersaddressrequired

btc_address

Bitcoin address balance

Confirmed and pending BTC balance (USD), tx count, address type and reuse for any Bitcoin address (mempool.space public API). Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersaddressrequired

btc_fees

Bitcoin fee estimator

Recommended sat/vB for next block, 30 min, 1 hour and economy, and what your transaction will cost in sats and USD. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersvbytes

vesting_schedule

Token vesting calculator

Cliff + linear vesting with optional TGE unlock: vested/unvested on any date and the monthly unlock schedule. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

ParametersatstartrequiredtotalrequiredtgePercentcliffMonthsdurationMonthsrequired

apr_apy

APR ↔ APY & compounding

Convert APR to APY (or back) for any compounding frequency, project earnings over N days with optional performance fee, doubling time. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

ParametersaprapydaysprincipalfeePercentcompounding

liquidation_price

Liquidation price calculator

Perp (isolated margin: side, entry, leverage, maintenance margin) or lending (collateral, debt, liquidation threshold → health factor) liquidation price and distance. Risk math, not advice. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

ParametersdebtmodesideentrypriceleveragecollateralmaintenanceMarginliquidationThreshold

impermanent_loss

Impermanent loss calculator

LP value vs holding after a price move: full-range (Uniswap v2) and concentrated range (v3, lower/upper) impermanent loss. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

ParametersloweruppernewPriceentryPricepriceRatio

loan_amortization

Loan / mortgage amortization

Monthly payment, total interest and schedule for annuity (本息平均攤還) or equal-principal (本金平均攤還) loans. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

ParametersmethodmonthsrequiredprincipalrequiredannualRaterequired

security_headers_audit

Security headers audit (A-F)

Graded audit of HSTS, CSP (unsafe-inline/eval, wildcards), clickjacking, nosniff, Referrer/Permissions-Policy, cookie flags, version leaks and CORS misconfig, with fixes. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parametersurlrequired

ssl_certificate

TLS certificate expiry (CT logs)

Latest unexpired certificates for a domain from Certificate Transparency logs: issuer, names, expiry date, days left, expiring-soon warning. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parametersdomainrequired

og_image_check

Link-preview image check

Does the page's og:image work in link previews? Fetches it and checks status, type, file size, pixel dimensions and aspect ratio (1200×630). Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parametersurlimage

sitemap_parse

Sitemap reader

Find (via robots.txt) and parse a sitemap or sitemap index: URL count, lastmod range, sample URLs and protocol issues. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parametersurlrequiredlimit

feed_parse

RSS / Atom / JSON Feed reader

Parse a feed (or autodiscover it from a web page) into clean JSON: title, latest items with link, date and summary. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parametersurlrequiredlimit

dns_propagation

DNS propagation check

Query 6 public resolvers (Cloudflare, Google, AdGuard, NextDNS, AliDNS, DNSPod) and compare answers: has my DNS change propagated? Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parameterstypedomainrequired

spf_dmarc_check

SPF lookup-count + DMARC check

Recursively expand SPF includes, count DNS lookups against the RFC limit of 10, flag +all/?all, duplicate records and weak DMARC policy. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parametersdomainrequired

ip_owner

IP owner / network (RDAP)

Who owns this IP? Network name, CIDR, country, organization and abuse contact from the regional internet registries (RDAP). Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersiprequired

url_parse_clean

URL parser + tracker remover

Split a URL into parts and query params, strip tracking params (utm_*, fbclid, gclid...) and flag phishing tricks (user@host, raw IP, shorteners, punycode). Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersurlrequired

idn_homograph_check

Look-alike domain (homograph) check

Decode punycode, detect mixed scripts and look-alike characters (Cyrillic а vs Latin a) and one-letter typos of major brands/wallets. Anti-phishing for agents. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersdomainrequired

mcp_tools_lint

MCP tool-definition linter

Connect to an MCP server (streamable HTTP) or take a tools/list array and lint every tool: names, descriptions, JSON Schema, required params, annotations; score + fixes. Free: 10 calls/day; then $0.003 via the HTTP endpoint or X-API-Key credits.

Parametersurltools

openapi_lint

OpenAPI linter (agent readiness)

Lint an OpenAPI/Swagger JSON or YAML: operationIds, descriptions, responses, undeclared path params, missing security schemes, servers, x402 payment info. Free: 10 calls/day; then $0.003 via the HTTP endpoint or X-API-Key credits.

Parametersurlspec

llms_txt_validate

llms.txt validator

Check a site's /llms.txt against the llmstxt.org format: H1, summary, sections, link entries with notes; optional link check. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

ParametersurltextcheckLinks

a2a_card_validate

A2A Agent Card validator

Fetch /.well-known/agent-card.json (or legacy agent.json) and validate required A2A fields, skills, transport and security declarations. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

Parametersurlcard

regex_test

Regex tester

Run a JavaScript regex on text: all matches with index and capture groups, optional replace, and a ReDoS warning for nested quantifiers. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterstextrequiredflagspatternrequiredreplace

text_diff

Text diff

Line, word or character diff between two texts with a unified patch, added/removed counts and similarity. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersarequiredbrequiredmode

id_generate

UUID / ULID / nanoid generator + decoder

Generate UUID v4/v7, ULID or nanoid (up to 100), or decode a UUID/ULID to its version and embedded timestamp. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterstypecountdecode

jwt_inspect

JWT inspector + JWKS verify

Decode a JWT, explain its claims (expired? lifetime?) and verify RS/PS/ES/EdDSA signatures against a public JWKS URL or the issuer's OIDC discovery. No secrets needed or stored. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

ParameterstokenrequiredjwksUrldiscover

number_base

Number base converter (BigInt)

Convert big integers between bases 2-36 (hex/bin/oct/dec, 0x/0b/0o prefixes) with two's complement for 8-256 bits. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterstobitsfromvaluerequired

markdown_to_html

Markdown → HTML

Render GitHub-flavored Markdown to HTML with raw HTML escaped and script URLs removed; also returns the heading outline. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersmarkdownrequired

csv_json_convert

CSV ↔ JSON converter

CSV to JSON (auto delimiter, headers, typed values, error rows) or JSON array to CSV. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersinputrequireddelimiterdirection

yaml_json_convert

YAML ↔ JSON converter

YAML (multi-document, with line-numbered errors) to JSON, or JSON to YAML. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersinputrequireddirection

json_format

JSON formatter, validator & path query

Validate JSON (error line + context), pretty-print/minify/sort keys, measure depth and size, and pick a value by path like a.b[0].c. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

ParametersopjsonrequiredpathsortKeys

semver_check

Semver compare / range check

Parse and compare semantic versions, check a version against a range (^1.2, ~2.0, >=1 <2), max satisfying version and sort a list. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersrangecompareversionversions

text_stats

Text statistics + token estimate

Characters, words (CJK-aware), sentences, paragraphs, reading time, LLM token estimate and top words. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterstextrequired

language_detect

Language detection

Detect the language of a text (82 languages, ISO 639-3 + BCP 47), including Traditional vs Simplified Chinese. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterstextrequired

slugify

Slug + safe filename

URL slug (accents removed; CJK kept or ASCII-only) and a filesystem-safe filename from any title. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

ParameterstextrequiredasciimaxLength

ip_cidr

IP / CIDR calculator

IPv4/IPv6 subnet math: network, range, size, netmask/wildcard, private/reserved type, contains-check and subnet split. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterscidrrequiredsplitcontains

user_agent_parse

User-agent parser + bot detection

Browser, engine, OS, device type, and whether it is a known crawler or AI agent (GPTBot, ClaudeBot, PerplexityBot, scripts...). Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersuarequired

color_convert

Color converter + WCAG contrast

Convert hex/rgb/hsl/CSS names to hex, RGB, HSL, CMYK; luminance, best text color and WCAG AA/AAA contrast against another color. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterscolorrequiredagainst

password_strength

Password strength estimate

Entropy, common-password and pattern checks (sequences, years, Word123!), crack-time estimates and feedback. Never stored or logged. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterspasswordrequired

phone_format

Phone number validate + format

Validate and format phone numbers for 240+ regions (libphonenumber): E.164, international/national format, type (mobile/fixed), country. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersnumberrequiredcountry

iban_validate

IBAN validator

Check an IBAN's country length and mod-97 check digits, return BBAN and print format. Not stored. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersibanrequired

card_number_check

Card number checksum (Luhn)

Luhn checksum, brand (Visa, Mastercard, Amex, JCB, UnionPay...) and length check; returns only a masked number. Never stored. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersnumberrequired

taiwan_id_check

Taiwan ID / ARC / 統一編號 checker

Checksum and format for 國民身分證, 居留證 (old and 2021 new format) and 統一編號 (company tax ID, new ÷5 rule). Not stored. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersidrequired

public_holidays

Public holidays (Taiwan / US)

Official Taiwan government office calendar (holidays, 補假, make-up workdays) or US federal holidays with observed dates, plus the next holiday. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersyearcountry

business_days

Business-day calculator

Count business days between dates or add N business days, using the official Taiwan calendar, US federal holidays or plain weekdays. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersaddendstartrequiredcountry

lunar_date

Lunar (農曆) date converter

Gregorian ↔ Chinese lunar date (incl. leap months) with 干支 year and zodiac; e.g. find the solar date of 中秋 (8/15). Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

ParametersdateleaplunarDaylunarYearlunarMonth

token_count

Token count estimate

Estimate LLM tokens, words and characters for any text (±15% vs GPT/Claude tokenizers; CJK-aware) and whether it fits 8k-1M context windows. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterstextrequired

llm_cost_estimate

LLM cost calculator

USD cost of a prompt across 22 popular models (GPT, Claude, Gemini, Grok, DeepSeek, Llama, Mistral) from token counts or raw text, sorted cheapest first. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

ParameterstextcallsmodelsinputTokensoutputTokens

text_chunk

Text chunker for RAG

Split long text into sentence/paragraph-aware chunks of N characters or tokens with overlap, ready for embeddings. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterssizetextrequiredunitoverlap

html_to_markdown

Web page / HTML → Markdown

Fetch a public URL (or pass HTML) and get clean LLM-ready Markdown of the main content: headings, links, lists, tables, code; scripts/nav removed; token estimate. Free: 10 calls/day; then $0.002 via the HTTP endpoint or X-API-Key credits.

ParametersurlhtmlmaxChars

extract_entities

Entity extractor

Pull emails, URLs, EVM addresses, tx hashes, BTC addresses, phone numbers, dates, money amounts, IPs, hashtags and @mentions out of any text. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterstextrequiredtypes

pii_redact

PII & secret redactor

Redact emails, phones, card numbers (Luhn-checked), IBANs, SSNs, IPs, API keys, JWTs, private keys and seed phrases before sending text to an LLM or log. Not stored. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersmodetextrequired

prompt_injection_scan

Prompt-injection scanner

Heuristic scan of untrusted web/email/tool content for injection markers: instruction override, system-prompt spoofing, secret exfiltration, payment coercion, hidden Unicode, image-URL exfil. Low/medium/high risk. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterstextrequired

json_repair

JSON repair (fix LLM output)

Fix broken JSON from LLMs: code fences, leading prose, comments, single quotes, bare keys, trailing commas, Python True/None, truncated strings and unclosed brackets. Returns parsed JSON + list of fixes. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parameterstextrequired

json_diff

JSON diff + patch

Structural diff of two JSON values: added/removed/changed paths (JSON Pointer) and an RFC 6902-style patch. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersarequiredbrequired

json_query

JSON path query

Extract values from JSON with a JSONPath-like path: a.b[0], a[*].b, a[-1], slices and filters like items[?(@.price>=10)]. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersdatarequiredpathrequired

text_similarity

Text similarity / dedupe

Compare two texts: bag-of-words cosine, word Jaccard, Levenshtein distance/ratio and a near-duplicate verdict. Lexical, no embeddings. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersarequiredbrequired

math_eval

Safe math evaluator

Evaluate arithmetic exactly instead of guessing: + - * / ^ %, parentheses, sqrt/ln/log/round/min/max/pow, pi/e and named variables. No code execution. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersexprrequiredvars

duration_parse

Duration parser

Parse ISO 8601 (P1DT2H30M), hh:mm:ss or human durations ('1h 30m', '2 weeks') to seconds, ISO and human form; optional end time from a start date. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersfromdurationrequired

email_check

Email address check

Validate an email: syntax, MX records (DNS-over-HTTPS), accepts mail, disposable domain, role account, free provider and a deliverability guess. No SMTP probing. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.

Parametersemailrequired

webhook_inbox_create

Webhook test inbox

Create a temporary URL that records any HTTP request sent to it (method, path, query, headers, body ≤16 KB, up to 100 requests, kept 24 h); read them back with the secret token. For testing webhooks and callbacks. Free: 3/day.

Takes no parameters.

webhook_inbox_read

Read webhook test inbox

Read requests captured by a webhook_inbox_create inbox (free).

Parametersidrequiredtokenrequired

Version history

1
  1. v1.0.0LatestNov 4, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.

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