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.
输入参数usdchain必填token必填
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.
输入参数chainsaddress必填
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.
输入参数namechainsaddress
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.
输入参数chains
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.
输入参数chain必填token必填holder
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.
输入参数chain必填owner必填tokensspenders
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.
输入参数hash必填chain必填
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.
输入参数abidata必填signature
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.
输入参数fullchain必填address必填
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.
输入参数chainaddress必填messagesignature必填typedData
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.
输入参数typedData必填expectedChainId
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.
输入参数url必填method
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.
输入参数url必填method
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.
输入参数url必填
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.
输入参数typesdomain必填
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.
输入参数domain必填
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.
输入参数url必填userAgent
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.
输入参数data必填draftschema必填
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.
输入参数optotzaddenddatetime
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.
输入参数tzcountexpression必填
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.
输入参数to必填from必填amount
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.
输入参数to必填from必填value必填
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.
输入参数op必填keyinputinputEncoding
qr_payment_link
QR code + crypto payment link
SVG QR code for any text/URL, or build an EIP-681 payment link + QR for a token amount to an address (for an agent asking a human to pay). We never receive the funds. Free: 10 calls/day; then $0.001 via the HTTP endpoint or X-API-Key credits.
输入参数totextchaintokenamount
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.
输入参数chain必填tokenId必填contract必填
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.
输入参数hash必填chain必填
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.
输入参数chain必填timestamp必填
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.
输入参数chains
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.
输入参数chainId必填
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.
输入参数symbols
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.
输入参数hash必填fromChain
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.
输入参数chain必填token必填sizeUsd
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.
输入参数chain必填address必填
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.
输入参数argsblockchain必填address必填signature必填
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.
输入参数args必填signature必填
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.
输入参数chain必填address必填
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.
输入参数chain必填eventlimitblocksaddress必填toBlockfromBlock
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.
输入参数chain必填owner必填tokens
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.
输入参数name必填
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.
输入参数chain必填vault必填holder
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.
输入参数address必填
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.
输入参数address必填
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.
输入参数address必填
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.
输入参数vbytes
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.
输入参数atstart必填total必填tgePercentcliffMonthsdurationMonths必填
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.
输入参数aprapydaysprincipalfeePercentcompounding
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.
输入参数debtmodesideentrypriceleveragecollateralmaintenanceMarginliquidationThreshold
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.
输入参数loweruppernewPriceentryPricepriceRatio
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.
输入参数methodmonths必填principal必填annualRate必填
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.
输入参数domain必填
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.
输入参数urlimage
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.
输入参数url必填limit
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.
输入参数url必填limit
broken_links
Broken link checker
Extract links from a page and check up to 12 of them (HEAD, GET fallback): status, redirects, latency, broken list. Free: 10 calls/day; then $0.003 via the HTTP endpoint or X-API-Key credits.
输入参数url必填limitscope
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.
输入参数typedomain必填
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.
输入参数domain必填
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.
输入参数ip必填
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.
输入参数url必填
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.
输入参数domain必填
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.
输入参数urltools
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.
输入参数urlspec
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.
输入参数urltextcheckLinks
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.
输入参数urlcard
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.
输入参数text必填flagspattern必填replace
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.
输入参数a必填b必填mode
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.
输入参数typecountdecode
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.
输入参数token必填jwksUrldiscover
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.
输入参数tobitsfromvalue必填
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.
输入参数markdown必填
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.
输入参数input必填delimiterdirection
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.
输入参数input必填direction
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.
输入参数opjson必填pathsortKeys
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.
输入参数rangecompareversionversions
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.
输入参数text必填
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.
输入参数text必填
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.
输入参数text必填asciimaxLength
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.
输入参数cidr必填splitcontains
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.
输入参数ua必填
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.
输入参数color必填against
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.
输入参数password必填
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.
输入参数number必填country
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.
输入参数iban必填
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.
输入参数number必填
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.
输入参数id必填
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.
输入参数yearcountry
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.
输入参数addendstart必填country
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.
输入参数dateleaplunarDaylunarYearlunarMonth
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.
输入参数text必填
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.
输入参数textcallsmodelsinputTokensoutputTokens
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.
输入参数sizetext必填unitoverlap
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.
输入参数urlhtmlmaxChars
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.
输入参数modetext必填
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.
输入参数text必填
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.
输入参数text必填
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.
输入参数a必填b必填
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.
输入参数data必填path必填
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.
输入参数a必填b必填
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.
输入参数expr必填vars
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.
输入参数fromduration必填
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.
输入参数email必填
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.
无需输入参数。
webhook_inbox_read
Read webhook test inbox
Read requests captured by a webhook_inbox_create inbox (free).
输入参数id必填token必填