x402 agent toolkit: service finder, payment safety, Solana & web tools
x402 tools: service finder, payment precheck/verify, Solana mint check, web-to-Markdown
Connect Remote server
claude mcp add --transport http pay-precheck https://x402-pay-precheck.moneytools.workers.dev/mcp{
"mcpServers": {
"pay-precheck": {
"url": "https://x402-pay-precheck.moneytools.workers.dev/mcp"
}
}
}{
"servers": {
"pay-precheck": {
"type": "http",
"url": "https://x402-pay-precheck.moneytools.workers.dev/mcp"
}
}
}Settings > Connectors > Add custom connector
URL: https://x402-pay-precheck.moneytools.workers.dev/mcpTools 80 found in our last check
x402_market_snapshotPaid ($0.005 USDC on Base via x402 over MCP), read-only, no arguments: snapshot of MoneyTools' live-probed x402 API index — size, live share, endpoints by network and price band, top tags, cheapest live endpoint per top tag, and the most recently verified live endpoints. Unpaid…
x402_recommendFind which x402 paid service to call for a task. Returns endpoints ranked by relevance and live liveness (unpaid probe returned valid x402 terms, payTo OFAC-screened), latency and price; top 3 freshly pre-checked. Free to try: 20 MCP calls/day per client, no API key or wallet ne…
x402_precheckBefore paying an x402 endpoint: fetch it, validate its HTTP 402 payment requirements (scheme, network, payTo, amount, asset) and screen payTo against the OFAC SDN crypto-address list. Returns verdict ok|warn|block|not_402. Free to try: 20 MCP calls/day per client, no API key or…
x402_verify_settlementVerify an on-chain USDC settlement: tx hash on network (base, base-sepolia, polygon, arbitrum, avalanche, bsc) paid amount to payTo. Returns verdict valid|invalid|pending|not_found. Free to try: 20 MCP calls/day per client, no API key or wallet needed (beyond that: prepaid credi…
x402_gateway_planBefore paying an x402 seller through the non-custodial MoneyTools Pay Gateway: prechecks the seller (valid x402 terms, OFAC-screened payTo) and returns the gateway URL to call, the price and the gateway fee (max(0.5% of price, $0.001), charged from prepaid credits only when the…
solana_mint_checkRule-based safety check of a Solana SPL / Token-2022 mint: mint & freeze authority, permanent delegate, transfer hook/fee, pausable, default-frozen, largest-holder concentration. Returns riskScore 0-100 and verdict low|medium|high. Free to try: 20 MCP calls/day per client, no AP…
web_read_markdownFetch a public web page and return clean Markdown (title, headings, links, lists, code) with a sha256 of the content. Respects robots.txt, public pages only, 1h cache. Free to try: 20 MCP calls/day per client, no API key or wallet needed (beyond that: prepaid credits via header…
swap_quoteGet a best-price token swap quote on one EVM chain (KyberSwap aggregator) or a cross-chain bridge quote (LI.FI, fallback Relay; set toChain). Returns expected and minimum output, price impact, gas, every fee, safety warnings and, if you pass taker, an UNSIGNED transaction (plus…
x402_find_endpointFind which live x402 paid API to call for a need (e.g. 'transcribe audio', 'web search', 'token price'), ranked by relevance and measured seller reputation (uptime 24h/7d, valid x402 terms, latency, price stability) from status.moneytools.dev probes, with price and ready links t…
allowance_setupFor a human who wants to give their AI agent money but does not know crypto: returns a tailored 3-step plan (zh-TW or English) - 1) create their own non-custodial AI wallet with email sign-in (Coinbase Agentic Wallet), 2) top up by region (card where supported; Taiwan: MAX/BitoP…
list_swap_tokensList the chains, chain ids, native tokens and token symbols accepted by swap_quote. Free.
plan_buyFree: returns price, coverage, fair-use cap and the exact x402 URL to buy the monthly plan (1 USDC once via x402 = 30 days of all paid MoneyTools tools, 1,000 calls/day fair use; excludes Pay Gateway 0.5% fees and swap fees; NOT auto-renewing). MCP cannot carry the x402 payment…
plan_statusFree: status of your MoneyTools API key: monthly-plan expiry, calls used today vs the 1,000/day fair-use cap, or remaining prepaid credits. Uses the X-API-Key header of this MCP request (or the apiKey argument).
token_safety_checkBefore 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 $0.005/call via x402 (MCP params._meta["…
address_profileProfile an EVM address or ENS name across Ethereum, Base, Arbitrum, Optimism, Polygon, BSC, Avalanche: EOA vs contract vs EIP-7702 delegated, nonce, native balances, primary ENS name, known-contract label. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/pay…
ens_resolveResolve 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served…
gas_compareCurrent gas on 7 EVM chains: base fee, priority fee, suggested maxFee, and the native-token cost of a transfer, ERC-20 transfer, approve and DEX swap. Among ETH-gas chains, names the cheapest for a typical swap (on-chain fees only, no USD conversion). Free: 10 calls/day; then $0…
erc20_infoName, symbol, decimals, total supply, owner, paused, upgradeable-proxy detection and (optional) a holder's balance for any ERC-20. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
allowance_revoke_planFind 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X…
tx_explainExplain 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credi…
calldata_decodeDecode 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 $0.005/call via x402 (MCP p…
contract_abiFetch 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneyto…
signature_verifyVerify 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.d…
typed_data_riskBefore 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 $0.005/call via x4…
x402_validateLint 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…
http_inspectFetch 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-…
url_metadataTitle, 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-…
dns_lookupA/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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
domain_rdapRegistrar, 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tool…
robots_checkMay 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Ke…
json_schema_validateValidate 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.mone…
time_convertop=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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [serve…
cron_next_runsNext 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
currency_convertConvert fiat amounts with daily ECB reference rates (Source: ECB statistics, via frankfurter.dev). Only currencies published by the ECB are supported. Not tradable quotes. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credi…
unit_convertLength, 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.d…
hash_encodesha256/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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools…
qr_payment_linkSVG 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. […
nft_metadataERC-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 $0.005/call via x402 (MCP params._meta["x402/payment"] or H…
tx_statusIs 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.mon…
block_at_timeFind 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.m…
rpc_healthProbe 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.…
chain_infoChain id → name, native currency, public RPCs, explorers, CAIP-2 id and a ready wallet_addEthereumChain object. Source: ethereum-lists/chains (CC0 1.0) via jsDelivr. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [s…
safe_multisig_infoIs 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by…
abi_encodeBuild 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [serve…
proxy_inspectIs 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-…
token_balancesNative + 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.de…
ens_availableIs name.eth available? Registered / grace period / available, expiry date, yearly base price and registration link. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
erc4626_vaultYield vault facts: underlying asset, total assets, share price (assets per share), deposits open, and a holder's position. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
address_validateWhich 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HT…
btc_addressConfirmed and pending BTC balance (and USD from mempool.space prices), tx count, address type and reuse for any Bitcoin address. Source: mempool.space public API (blockstream.info / mempool.emzy.de fallback). Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/…
btc_feesRecommended sat/vB for next block, 30 min, 1 hour and economy, and what your transaction will cost in sats and USD (USD from mempool.space prices). Source: mempool.space public API. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API…
vesting_scheduleCliff + linear vesting with optional TGE unlock: vested/unvested on any date and the monthly unlock schedule. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
apr_apyConvert 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
liquidation_pricePerp (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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP)…
impermanent_lossLP value vs holding after a price move: full-range (Uniswap v2) and concentrated range (v3, lower/upper) impermanent loss. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
loan_amortizationMonthly 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
security_headers_auditGraded 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credit…
ssl_certificateLatest unexpired certificates for a domain from Certificate Transparency logs: issuer, names, expiry date, days left, expiring-soon warning. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools…
og_image_checkDoes 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools…
sitemap_parseFind (via robots.txt) and parse a sitemap or sitemap index: URL count, lastmod range, sample URLs and protocol issues. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
feed_parseParse 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
broken_linksExtract links from a page and check up to 12 of them (HEAD, GET fallback): status, redirects, latency, broken list. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
dns_propagationQuery 6 public resolvers (Cloudflare, Google, AdGuard, NextDNS, AliDNS, DNSPod) and compare answers: has my DNS change propagated? Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
spf_dmarc_checkRecursively 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
ip_ownerWho owns this IP? Network name, CIDR, country, organization and abuse contact from the regional internet registries (RDAP). Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
url_parse_cleanSplit 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by…
idn_homograph_checkDecode 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served…
mcp_tools_lintConnect 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits…
openapi_lintLint an OpenAPI/Swagger JSON or YAML: operationIds, descriptions, responses, undeclared path params, missing security schemes, servers, x402 payment info. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by to…
llms_txt_validateCheck 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
a2a_card_validateFetch /.well-known/agent-card.json (or legacy agent.json) and validate required A2A fields, skills, transport and security declarations. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
regex_testRun 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
text_diffLine, word or character diff between two texts with a unified patch, added/removed counts and similarity. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
id_generateGenerate 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
jwt_inspectDecode 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key…
number_baseConvert 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
markdown_to_htmlRender GitHub-flavored Markdown to HTML with raw HTML escaped and script URLs removed; also returns the heading outline. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
csv_json_convertCSV to JSON (auto delimiter, headers, typed values, error rows) or JSON array to CSV. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
yaml_json_convertYAML (multi-document, with line-numbered errors) to JSON, or JSON to YAML. Free: 10 calls/day; then $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
json_formatValidate 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 $0.005/call via x402 (MCP params._meta["x402/payment"] or HTTP) or X-API-Key credits. [served by tools.moneytools.dev]
Details
| Endpoint | https://x402-pay-precheck.moneytools.workers.dev/mcp (Streamable HTTP) |
| First published | 11 Nov 2026 |
| Last updated | 11 Nov 2026 |
| Registry name | dev.workers.moneytools.x402-pay-precheck/pay-precheck |
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