You were invited by an AIPayGen user. Get your free key and it's linked to them; you get the same $0.05 of free credits.
Search 19,000+ APIs, MCP servers, skills and agents for free. Then call any of our 76 tools and pay per call in USDC, with no account.
Agents can run the same search over MCP with search_marketplace.
Connect over MCP or call the HTTP API. Pay per call with x402, or get a key with $0.05 of free credits.
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Use our x402 facilitator to take USDC payments on Base. It's free, we pay the gas, and the money goes straight to your wallet.
Runs for real. You get 3 free calls a day on the lighter tools; after that you'll see the x402 quote an agent would pay.
The response shows up here.
dns_lookupDNS lookupdomain_whoisDomain registration (RDAP/WHOIS)domain_availableDomain name availabilityssl_certificatesSSL certificates and subdomainstech_stackWebsite tech stacksecurity_headersHTTP security headersemail_securityEmail security auditsite_metadataWebsite metadata and contactspage_to_markdownWeb page to Markdownredirect_checkLink unshortener and redirect checkerfaviconFavicon and logo finderdomain_reportFull domain reportcompany_profileCompany profile from a domainsec_filingsSEC filings and company financialsstock_quoteStock, ETF and index quoteseconomic_dataCountry economic indicatorscurrency_convertCurrency exchange ratesfx_historyExchange rate historyemail_verifyEmail address verificationproduct_lookupFood product and barcode lookupcrypto_priceCrypto pricesdex_tokenDEX token and pair datawallet_balanceWallet balances (EVM)gas_priceGas prices across chainstoken_securityToken security scan (honeypot check)tx_lookupTransaction lookup (EVM)sanctions_checkCrypto wallet sanctions screening (OFAC)ens_lookupENS name lookupdefi_tvlDeFi TVL by chain or protocolprediction_marketsPrediction market odds (Polymarket)ask_llmAsk an open LLMsummarizeSummarize text or a web pageextract_dataExtract structured dataclassify_textClassify text and sentimenttranslateTranslate textsentimentSentiment analysisprompt_injection_checkPrompt injection detectorlanguage_detectLanguage detectionembed_textText embeddingsrank_textsRerank search resultsdocument_to_markdownPDF and document to Markdowndescribe_imageImage understanding and OCRgenerate_imageGenerate an image (text to image)text_to_speechText to speechtranscribe_audioSpeech to text (transcribe audio)wikipediaWikipedia lookuppaper_searchResearch paper search (arXiv)scholar_searchScholarly article search (Crossref)book_searchBook search (Open Library)clinical_trialsClinical trials searchdrug_infoDrug label and recall lookup (FDA)regulations_searchUS regulations and rules searchhacker_newsHacker News searchgithub_trendingTrending GitHub repositoriesweatherWeather forecastweather_alertsSevere weather alerts (US)earthquakesRecent earthquakesgeocodeGeocode and reverse geocodepublic_holidaysPublic holidays by countrycountry_infoCountry factspackage_infoPackage registry infopackage_vulnsPackage vulnerability checkip_lookupIP address owner lookupjwt_decodeJWT decoderdata_convertConvert JSON, CSV, YAML and XMLdate_calcDate and business-day calculatortime_zoneTime zone convertermath_calcCalculator, statistics and unit convertertext_utilsText utilities (hash, encode, UUID, stats)search_marketplaceSearch the AIPayGen marketplacefind_toolFind the best tool for a jobregister_agentList your agent in the AIPayGen marketplacerun_skillRun a marketplace skilldefi_yieldsDeFi yields (APY) across chainsstablecoinsStablecoin market datanews_searchNews search (major outlets + Hacker News)Every tool works over MCP and HTTP. Ask the pricing tool, or call one, for its price.
Anyone you send here with your link is yours: you earn 20% of what each wallet you refer spends for 90 days, paid daily as credits, plus $1 when an agent you refer makes its first top-up of $5 or more.
Links work on any page, the MCP endpoint and every tool URL: add ?ref=YOURCODE.
MCP endpoint: https://aipaygen.com/mcp (Streamable HTTP). Add your key as a header.
claude mcp add --transport http aipaygen https://aipaygen.com/mcp \
--header "Authorization: Bearer YOUR_API_KEY"{
"mcpServers": {
"aipaygen": {
"url": "https://aipaygen.com/mcp",
"headers": { "Authorization": "Bearer YOUR_API_KEY" }
}
}
}curl "https://aipaygen.com/v1/company_profile?domain=figma.com" \
-H "Authorization: Bearer YOUR_API_KEY"No key? Call any paid endpoint without one: it answers 402 with x402 payment requirements (USDC, network eip155:8453). x402-enabled agents pay automatically.