{ "basis": "wave 5 (2026-08-26) paid_but_status_400, one row per endpoint; declared_* measured 2026-08-27 from the 402 challenge; settlement chain-audited 2026-08-27", "count": 99, "endpoints": [ { "url": "https://api.bitrefill.com/x402/products/detail", "quote_usdc": 0.001, "declared_required": [ "slug" ], "declared_params": [ "slug" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error_code\":\"MISSING_FIELD\",\"field\":\"slug\",\"agent_instructions\":\"Required field missing: slug. Provide it and retry the request.\"}" }, { "url": "https://api.bitrefill.com/x402/invoice/status", "quote_usdc": 0.001, "declared_required": [ "invoice_id" ], "declared_params": [ "invoice_id" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error_code\":\"MISSING_FIELD\",\"field\":\"invoice_id\",\"agent_instructions\":\"Required field missing: invoice_id. Provide it and retry the request.\"}" }, { "url": "https://402timezones.vercel.app/api/convert-timezone", "quote_usdc": 0.001, "declared_required": [ "from", "to" ], "declared_params": [ "from", "to", "time" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"Missing required query params. Provide `from` and `to` IANA time zones.\"}" }, { "url": "https://x402.ottoai.services/token-details", "quote_usdc": 0.001, "declared_required": [ "symbol" ], "declared_params": [ "symbol" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"failed\",\"data\":\"Symbol parameter is required\"}" }, { "url": "https://x402.ottoai.services/token-security", "quote_usdc": 0.001, "declared_required": [ "address" ], "declared_params": [ "address", "chain" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"failed\",\"error\":\"Address parameter is required\"}" }, { "url": "https://x402.ottoai.services/pools-trending", "quote_usdc": 0.001, "declared_required": [ "network" ], "declared_params": [ "network" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"pools-trending\",\"param\":\"network\"}" }, { "url": "https://x402.ottoai.services/pools-search", "quote_usdc": 0.001, "declared_required": [ "query" ], "declared_params": [ "query" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"pools-search\",\"param\":\"query\"}" }, { "url": "https://x402.ottoai.services/pm-search", "quote_usdc": 0.001, "declared_required": [ "query" ], "declared_params": [ "query" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"pm-search\",\"param\":\"query\"}" }, { "url": "https://x402.ottoai.services/hyperliquid-account", "quote_usdc": 0.001, "declared_required": [ "address" ], "declared_params": [ "address" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"failed\",\"error\":\"address parameter is required (wallet address)\"}" }, { "url": "https://x402.ottoai.services/supported-tokens", "quote_usdc": 0.001, "declared_required": [ "chainId", "search" ], "declared_params": [ "chainId", "search" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"failed\",\"error\":\"chainId parameter is required (e.g., 8453 for Base)\"}" }, { "url": "https://x402.ottoai.services/yield-farming-historical", "quote_usdc": 0.001, "declared_required": [ "userAddress" ], "declared_params": [ "userAddress" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"failed\",\"error\":\"userAddress query parameter required\"}" }, { "url": "https://x402.ottoai.services/yield-farming-active", "quote_usdc": 0.001, "declared_required": [ "userAddress" ], "declared_params": [ "userAddress" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"failed\",\"error\":\"userAddress query parameter required\"}" }, { "url": "https://x402.ottoai.services/weather", "quote_usdc": 0.001, "declared_required": [ "location" ], "declared_params": [ "location" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"weather\",\"param\":\"location\"}" }, { "url": "https://x402.ottoai.services/token-price", "quote_usdc": 0.001, "declared_required": [ "token" ], "declared_params": [ "token" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"token-price\",\"param\":\"token\"}" }, { "url": "https://x402.ottoai.services/dns-lookup", "quote_usdc": 0.001, "declared_required": [ "domain" ], "declared_params": [ "domain" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"dns-lookup\",\"param\":\"domain\"}" }, { "url": "https://x402.ottoai.services/whois-lookup", "quote_usdc": 0.001, "declared_required": [ "domain" ], "declared_params": [ "domain" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"whois-lookup\",\"param\":\"domain\"}" }, { "url": "https://x402.ottoai.services/filtered-news", "quote_usdc": 0.001, "declared_required": [ "topic" ], "declared_params": [ "topic" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"failed\",\"error\":\"Topic parameter is required (single string value)\"}" }, { "url": "https://x402.ottoai.services/domain-age", "quote_usdc": 0.001, "declared_required": [ "domain" ], "declared_params": [ "domain" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"domain-age\",\"param\":\"domain\"}" }, { "url": "https://x402.ottoai.services/portfolio", "quote_usdc": 0.001, "declared_required": [ "userId" ], "declared_params": [ "userId" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"failed\",\"error\":\"userId parameter is required (wallet address)\"}" }, { "url": "https://minifetch.com/api/v1/x402/preflight/url-check", "quote_usdc": 0.001, "declared_required": [ "url" ], "declared_params": [ "url", "fresh" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"success\":false,\"results\":[{\"data\":{\"url\":null},\"error\":{\"message\":\"Missing url query parameter\"}}]}" }, { "url": "https://api.justaname.id/ens/v2/reverse", "quote_usdc": 0.001, "declared_required": null, "declared_params": [], "settled_onchain": true, "tx_hash": "0x52b3626f4a5686e85fb624b189b4476e71b3dd669201627c84ac9a8a0225f933", "seller_error_body": "{\"statusCode\":400,\"result\":{\"data\":null,\"error\":[\"each value in address must be a 0x-prefixed hex address, optionally suffixed with @eip155: or @\",\"each value in address should no" }, { "url": "https://human.twin3.ai/v1/human", "quote_usdc": 0.001, "declared_required": [ "wallet" ], "declared_params": [ "wallet", "min_score", "check", "include", "match" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"invalid_wallet\"}" }, { "url": "https://ozmium.org/v1/prices", "quote_usdc": 0.001, "declared_required": null, "declared_params": [ "symbols" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"symbols required (e.g. ?symbols=ETH,BTC)\"}" }, { "url": "https://api.webbersites.com/api/scrape", "quote_usdc": 0.001, "declared_required": [ "url" ], "declared_params": [ "url" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"missing ?url= query parameter\"}" }, { "url": "https://x402-seller.onrender.com/ocean/tides", "quote_usdc": 0.001, "declared_required": [], "declared_params": [ "station", "lat", "lng", "product" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"Provide either 'station' (NOAA CO-OPS station ID, e.g. 9414290), or 'lat' and 'lng' to use the nearest station\"}" }, { "url": "https://api.agentstools.dev/search", "quote_usdc": 0.001, "declared_required": [ "query" ], "declared_params": [ "query", "max_results", "timelimit", "region", "safesearch", "backend" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"query is required\"}" }, { "url": "https://ozmium.org/v1/signals", "quote_usdc": 0.001, "declared_required": null, "declared_params": [ "symbols" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"symbols required (e.g. ?symbols=ETH,BTC- up to 10)\"}" }, { "url": "https://bazaar-gateway.vercel.app/api/weather", "quote_usdc": 0.001, "declared_required": null, "declared_params": [ "lat", "lon", "location" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"error\",\"error_type\":\"missing_params\",\"error_message\":\"Missing location parameter.\",\"no_payment_charged\":true,\"suggestion\":\"Provide 'location' (city name) or 'lat'+'lon' (coordinates). Examp" }, { "url": "https://api.webbersites.com/api/timezone", "quote_usdc": 0.001, "declared_required": [ "lat", "lng" ], "declared_params": [ "lat", "lng" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"lat (-90..90) and lng (-180..180) required\"}" }, { "url": "https://data.greeneris.io/v1/wx/forecast", "quote_usdc": 0.001, "declared_required": [ "latitude", "longitude" ], "declared_params": [ "latitude", "longitude", "hourly", "forecast_days", "daily", "timezone" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"ok\":false,\"endpoint\":\"/v1/wx/forecast\",\"error\":\"pass ?latitude= in decimal degrees\"}" }, { "url": "https://api.webbersites.com/api/seo/metadata", "quote_usdc": 0.001, "declared_required": [ "url" ], "declared_params": [ "url" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"url query param required\"}" }, { "url": "https://api.justaname.id/ens/v2/resolve", "quote_usdc": 0.001, "declared_required": null, "declared_params": [], "settled_onchain": true, "tx_hash": "0xeb7ab1c75a3eb364baa053a9a23dcd14a728e1f234ac82594cfaa0c536b7fafa", "seller_error_body": "{\"statusCode\":400,\"result\":{\"data\":null,\"error\":[\"each value in ens should not be empty\",\"each value in ens must be a string\",\"ens must contain no more than 50 elements\",\"ens must contain at least 1 e" }, { "url": "https://agent-security-review.agent-security-review.workers.dev/api/v1/hyperliquid-funding-extremes", "quote_usdc": 0.001, "declared_required": null, "declared_params": null, "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\n \"error\": \"Address 0x035922f1c9375e4de92f003b1f6410c93299d6bd is not registered. Register at https://openx402.ai/register\"\n}" }, { "url": "https://api.x402oracle.com/v1/trade-check", "quote_usdc": 0.002, "declared_required": [ "resource" ], "declared_params": [ "resource", "expectedPayTo", "maxUsdPrice", "maxAgeSeconds" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"status\":400,\"code\":\"resource_required\",\"message\":\"resource query param is required\"}}" }, { "url": "https://api.agentfeeds.jp/v1/estat/search", "quote_usdc": 0.002, "declared_required": [ "keyword" ], "declared_params": [ "keyword", "limit" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"invalid_params\",\"detail\":\"keyword (1-100 chars) is required; limit (1-50, default 10)\"}" }, { "url": "https://shield.vainplex.dev/api/cdp/check/ip", "quote_usdc": 0.002, "declared_required": [ "ip" ], "declared_params": [ "ip" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"ip parameter required (IPv4)\"}" }, { "url": "https://x402.jmthomasofficial.com/v2/api/edgar-company-lookup", "quote_usdc": 0.002, "declared_required": [ "ticker" ], "declared_params": [ "ticker" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"Missing 'ticker' or 'q' query parameter\"}" }, { "url": "https://api.agentfeeds.jp/v1/boj/rates", "quote_usdc": 0.002, "declared_required": [ "series" ], "declared_params": [ "series", "start", "end", "limit" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"invalid_params\",\"detail\":\"series must be one of call_rate_on, discount_rate; start/end optional YYYYMM; limit 1-2000 default 100 (most recent)\"}" }, { "url": "https://vibesprings.net/api/weather", "quote_usdc": 0.002, "declared_required": [ "location", "start_date", "end_date" ], "declared_params": [ "location", "start_date", "end_date" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"invalid\",\"message\":\"Missing required params: location, start_date, end_date\"}" }, { "url": "https://vibesprings.net/api/forecast", "quote_usdc": 0.002, "declared_required": [ "location" ], "declared_params": [ "location", "days" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"invalid\",\"message\":\"Missing required param: location\"}" }, { "url": "https://vibesprings.net/api/air-quality", "quote_usdc": 0.002, "declared_required": [ "location" ], "declared_params": [ "location", "days" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"invalid\",\"message\":\"Missing required param: location\"}" }, { "url": "https://vibesprings.net/api/marine", "quote_usdc": 0.002, "declared_required": [ "location" ], "declared_params": [ "location", "days" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"invalid\",\"message\":\"Missing required param: location\"}" }, { "url": "https://vibesprings.net/api/earthquakes", "quote_usdc": 0.002, "declared_required": [ "location" ], "declared_params": [ "location", "radius_km", "min_mag", "days" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"invalid\",\"message\":\"Missing required param: location\"}" }, { "url": "https://vibesprings.net/api/flood", "quote_usdc": 0.002, "declared_required": [ "location" ], "declared_params": [ "location", "days" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"invalid\",\"message\":\"Missing required param: location\"}" }, { "url": "https://vibesprings.net/api/solar", "quote_usdc": 0.002, "declared_required": [ "location" ], "declared_params": [ "location", "date", "days" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"invalid\",\"message\":\"Missing required param: location\"}" }, { "url": "https://vibesprings.net/api/holidays", "quote_usdc": 0.002, "declared_required": [ "country" ], "declared_params": [ "country", "year" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"invalid\",\"message\":\"Missing or invalid \\\"country\\\" param. Use ISO 3166-1 alpha-2 code (e.g. \\\"US\\\", \\\"GB\\\", \\\"DE\\\").\"}" }, { "url": "https://skim402.com/api/v2/read", "quote_usdc": 0.002, "declared_required": [ "url" ], "declared_params": [ "url" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"Missing required query parameter: url\"}" }, { "url": "https://x402.charliemorrison.dev/extract", "quote_usdc": 0.002, "declared_required": [ "url" ], "declared_params": [ "url" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"missing url\"}" }, { "url": "https://netintel.dev/dns/lookup", "quote_usdc": 0.002, "declared_required": [ "domain" ], "declared_params": [ "domain" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"domain is required \u2014 e.g. /dns/lookup?domain=example.com\"}" }, { "url": "https://minifetch.com/api/v1/x402/extract/url-metadata", "quote_usdc": 0.002, "declared_required": [ "url" ], "declared_params": [ "url", "fields", "omitEmpty", "includeResponseBody" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"success\":false,\"queryParameters\":{\"omitEmpty\":false,\"includeResponseBody\":false},\"results\":[{\"data\":{\"url\":null},\"error\":{\"message\":\"Missing url parameter\"}}]}" }, { "url": "https://api.aventtech.com/lookup/dns", "quote_usdc": 0.002, "declared_required": [ "name" ], "declared_params": [ "name", "type" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"query parameter 'name' is required\"}" }, { "url": "https://trader.rigoblock.com/api/quote", "quote_usdc": 0.002, "declared_required": [ "sell", "buy", "amount" ], "declared_params": [ "sell", "buy", "amount", "chain", "vault", "slippage", "operator", "sig", "ts" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"Missing required query params: sell, buy, amount\",\"example\":\"/api/quote?sell=ETH&buy=USDC&amount=1&chain=8453\"}" }, { "url": "https://x402.shizu.me/tz", "quote_usdc": 0.002, "declared_required": [ "from", "to" ], "declared_params": [ "from", "to" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"from and to (IANA zones) required\",\"example\":\"https://x402.shizu.me/tz?from=UTC&to=America/New_York\",\"price\":\"$0.002\",\"required\":{\"from\":\"IANA zone e.g. UTC\",\"to\":\"IANA zone e.g. America/New" }, { "url": "https://402.com.tr/api/x402/fx-convert", "quote_usdc": 0.002, "declared_required": [ "from", "to" ], "declared_params": [ "from", "to", "amount", "date" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"Missing or invalid 'from' \u2014 a 3-letter currency code, e.g. USD\"}" }, { "url": "https://2s.io/api/agriculture/drought", "quote_usdc": 0.0025, "declared_required": [ "area" ], "declared_params": [ "area", "weeks" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":\"BAD_REQUEST\",\"message\":\"Invalid parameters.\",\"details\":{\"issues\":[{\"code\":\"invalid_type\",\"expected\":\"string\",\"received\":\"undefined\",\"path\":[\"area\"],\"message\":\"Required\"}]}}}" }, { "url": "https://api.stocktrends.com/v1/stim/latest", "quote_usdc": 0.0025, "declared_required": [ "symbol_exchange" ], "declared_params": [ "symbol_exchange", "symbol", "exchange" ], "settled_onchain": true, "tx_hash": "0x563ca3a8acd2036d8142ab0ce37802610d9506adf5b9116fef0bf99109c7f01f", "seller_error_body": "{\"detail\":{\"request_id\":\"6a3ec389-165d-4c88-8366-b18c153224cb\",\"error\":\"missing_required_param\",\"message\":\"Provide symbol_exchange or (symbol and exchange).\"}}" }, { "url": "https://2s.io/api/geocode/address", "quote_usdc": 0.0025, "declared_required": [ "q" ], "declared_params": [ "q", "limit", "country" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":\"BAD_REQUEST\",\"message\":\"Invalid parameters.\",\"details\":{\"issues\":[{\"code\":\"invalid_type\",\"expected\":\"string\",\"received\":\"undefined\",\"path\":[\"q\"],\"message\":\"Required\"}]}}}" }, { "url": "https://2s.io/api/timezone/lookup", "quote_usdc": 0.0025, "declared_required": [ "lat", "lon" ], "declared_params": [ "lat", "lon", "at" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":\"BAD_REQUEST\",\"message\":\"Invalid parameters.\",\"details\":{\"issues\":[{\"code\":\"invalid_type\",\"expected\":\"number\",\"received\":\"nan\",\"path\":[\"lat\"],\"message\":\"Expected number, received nan\"" }, { "url": "https://2s.io/api/airport/near", "quote_usdc": 0.0025, "declared_required": [ "lat", "lon" ], "declared_params": [ "lat", "lon", "radius_km", "limit", "type", "country", "scheduled_service" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":\"BAD_REQUEST\",\"message\":\"Invalid parameters.\",\"details\":{\"issues\":[{\"code\":\"invalid_type\",\"expected\":\"number\",\"received\":\"nan\",\"path\":[\"lat\"],\"message\":\"Expected number, received nan\"" }, { "url": "https://2s.io/api/calendar/holidays", "quote_usdc": 0.0025, "declared_required": [ "country", "year" ], "declared_params": [ "country", "year", "region", "types", "lang" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":\"BAD_REQUEST\",\"message\":\"Invalid parameters.\",\"details\":{\"issues\":[{\"code\":\"invalid_type\",\"expected\":\"string\",\"received\":\"undefined\",\"path\":[\"country\"],\"message\":\"Required\"},{\"code\":\"" }, { "url": "https://2s.io/api/calendar/business-days", "quote_usdc": 0.0025, "declared_required": [ "country", "start" ], "declared_params": [ "country", "start", "addDays", "end", "region", "weekend", "types" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":\"BAD_REQUEST\",\"message\":\"Invalid parameters.\",\"details\":{\"issues\":[{\"code\":\"invalid_type\",\"expected\":\"string\",\"received\":\"undefined\",\"path\":[\"country\"],\"message\":\"Required\"},{\"code\":\"" }, { "url": "https://2s.io/api/convert/unit", "quote_usdc": 0.0025, "declared_required": [ "value", "from", "to" ], "declared_params": [ "value", "from", "to" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":\"BAD_REQUEST\",\"message\":\"Invalid parameters.\",\"details\":{\"issues\":[{\"code\":\"invalid_type\",\"expected\":\"number\",\"received\":\"nan\",\"path\":[\"value\"],\"message\":\"Expected number, received na" }, { "url": "https://2s.io/api/medical/icd10", "quote_usdc": 0.0025, "declared_required": null, "declared_params": [ "code", "q", "billable_only", "limit" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":\"BAD_REQUEST\",\"message\":\"Provide exactly one of code or q.\",\"details\":null}}" }, { "url": "https://vibesprings.net/api/infra/health-check", "quote_usdc": 0.003, "declared_required": [ "url" ], "declared_params": [ "url" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"error\",\"message\":\"Missing url parameter. Provide target API URL to scan.\"}" }, { "url": "https://x402.ottoai.services/equity-intel", "quote_usdc": 0.003, "declared_required": [ "ticker" ], "declared_params": [ "ticker" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"equity-intel\",\"param\":\"ticker\"}" }, { "url": "https://x402.ottoai.services/insider-trades", "quote_usdc": 0.003, "declared_required": [ "ticker" ], "declared_params": [ "ticker" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"insider-trades\",\"param\":\"ticker\"}" }, { "url": "https://x402.ottoai.services/institutional-holdings", "quote_usdc": 0.003, "declared_required": [ "manager" ], "declared_params": [ "manager" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"institutional-holdings\",\"param\":\"manager\"}" }, { "url": "https://x402.ottoai.services/token-fundamentals", "quote_usdc": 0.003, "declared_required": [ "symbol" ], "declared_params": [ "symbol" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"token-fundamentals\",\"param\":\"symbol\"}" }, { "url": "https://x402.ottoai.services/equity-news", "quote_usdc": 0.003, "declared_required": [ "ticker" ], "declared_params": [ "ticker" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"equity-news\",\"param\":\"ticker\"}" }, { "url": "https://x402.ottoai.services/web-links", "quote_usdc": 0.003, "declared_required": [ "url" ], "declared_params": [ "url" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"web-links\",\"param\":\"url\"}" }, { "url": "https://x402.ottoai.services/technical-signals", "quote_usdc": 0.003, "declared_required": [ "ticker" ], "declared_params": [ "ticker" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"technical-signals\",\"param\":\"ticker\"}" }, { "url": "https://x402.ottoai.services/dividend-intel", "quote_usdc": 0.003, "declared_required": [ "ticker" ], "declared_params": [ "ticker" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"dividend-intel\",\"param\":\"ticker\"}" }, { "url": "https://x402.ottoai.services/analyst-ratings", "quote_usdc": 0.003, "declared_required": [ "ticker" ], "declared_params": [ "ticker" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"analyst-ratings\",\"param\":\"ticker\"}" }, { "url": "https://x402.ottoai.services/earnings-calendar", "quote_usdc": 0.003, "declared_required": [ "ticker" ], "declared_params": [ "ticker" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"earnings-calendar\",\"param\":\"ticker\"}" }, { "url": "https://api.onesource.io/api/chain/erc20-balance", "quote_usdc": 0.003, "declared_required": [ "account", "token" ], "declared_params": [ "account", "network", "token" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":400,\"message\":\"address and contract params required\"},\"meta\":{\"endpoint\":\"/api/chain/erc20-balance\",\"request_id\":\"e9b7ac05cd53d24b\"}}\n" }, { "url": "https://api.onesource.io/api/chain/live-balance", "quote_usdc": 0.003, "declared_required": [ "address" ], "declared_params": [ "address", "network", "tokens" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":400,\"message\":\"address param required\"},\"meta\":{\"endpoint\":\"/api/chain/live-balance\",\"request_id\":\"ead24553446892d7\"}}\n" }, { "url": "https://api.onesource.io/api/chain/total-supply", "quote_usdc": 0.003, "declared_required": [ "contract" ], "declared_params": [ "contract", "network" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":400,\"message\":\"contract param required\"},\"meta\":{\"endpoint\":\"/api/chain/total-supply\",\"request_id\":\"60c6e5be2a0a4804\"}}\n" }, { "url": "https://api.onesource.io/api/chain/nft-owner", "quote_usdc": 0.003, "declared_required": [ "contract", "token_id" ], "declared_params": [ "contract", "network", "token_id" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":400,\"message\":\"contract and token_id params required\"},\"meta\":{\"endpoint\":\"/api/chain/nft-owner\",\"request_id\":\"f9443dbf8ca9680a\"}}\n" }, { "url": "https://api.onesource.io/api/chain/erc1155-balance", "quote_usdc": 0.003, "declared_required": [ "account", "contract", "token_id" ], "declared_params": [ "account", "contract", "network", "token_id" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":400,\"message\":\"address, contract, and token_id params required\"},\"meta\":{\"endpoint\":\"/api/chain/erc1155-balance\",\"request_id\":\"5acd2218d744a561\"}}\n" }, { "url": "https://2s.io/api/business/lei", "quote_usdc": 0.003, "declared_required": null, "declared_params": [ "lei", "query", "country", "status", "limit", "offset" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":\"BAD_REQUEST\",\"message\":\"Invalid parameters.\",\"details\":{\"issues\":[{\"code\":\"custom\",\"message\":\"pass one of: lei or query\",\"path\":[]}]}}}" }, { "url": "https://2s.io/api/inflation/calculator", "quote_usdc": 0.003, "declared_required": [ "amount", "from" ], "declared_params": [ "amount", "from", "to" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":{\"code\":\"BAD_REQUEST\",\"message\":\"Invalid parameters.\",\"details\":{\"issues\":[{\"code\":\"invalid_type\",\"expected\":\"number\",\"received\":\"nan\",\"path\":[\"amount\"],\"message\":\"Expected number, received n" }, { "url": "https://vending-machine-seven.vercel.app/api/v/ip-lookup", "quote_usdc": 0.003, "declared_required": [ "ip" ], "declared_params": [ "ip" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"service\":\"ip-lookup\",\"ok\":false,\"error\":\"Error: missing ip\"}" }, { "url": "https://x402.botsmith.dev/x/user", "quote_usdc": 0.004, "declared_required": [ "handle" ], "declared_params": [ "handle" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"invalid_input\",\"issues\":[{\"expected\":\"string\",\"code\":\"invalid_type\",\"path\":[\"handle\"],\"message\":\"Invalid input: expected string, received undefined\"}]}" }, { "url": "https://scvd.store/api/buy/settlement_attestation", "quote_usdc": 0.004, "declared_required": [ "tx_hash" ], "declared_params": [ "agent_name", "tx_hash", "payer", "recipient", "nonce", "amount_usdc", "payment_payload" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"Nothing to look up. Give a tx_hash query parameter \u2014 a Base transaction hash (0x + 64 hex) or a Solana transaction signature (base58) \u2014 and we will read that chain once and sign what is ther" }, { "url": "https://api.x-402.online/v1/extract", "quote_usdc": 0.005, "declared_required": null, "declared_params": [], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"missing_url\",\"likely_blocked\":\"The target may be blocking datacenter/residential IPs. Mobile-carrier IPs are the hardest class to block.\",\"retry_from_mobile_ip\":{\"how\":\"add exit=mobile to th" }, { "url": "https://vibesprings.net/api/exchange/history", "quote_usdc": 0.005, "declared_required": [ "start", "end" ], "declared_params": [ "base", "to", "start", "end" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"invalid\",\"message\":\"Missing required params: start (YYYY-MM-DD) and end (YYYY-MM-DD)\"}" }, { "url": "https://vibesprings.net/api/agent/status", "quote_usdc": 0.005, "declared_required": [ "wallet" ], "declared_params": [ "wallet" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"error\",\"message\":\"Missing or invalid wallet parameter. Provide a valid 42-char Ethereum address.\"}" }, { "url": "https://x402.ottoai.services/web-json-extract", "quote_usdc": 0.005, "declared_required": [ "url" ], "declared_params": [ "url" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"web-json-extract\",\"param\":\"url\"}" }, { "url": "https://x402.ottoai.services/tweet-search", "quote_usdc": 0.005, "declared_required": [ "query" ], "declared_params": [ "query" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"tweet-search\",\"param\":\"query\"}" }, { "url": "https://x402.ottoai.services/token-alpha", "quote_usdc": 0.005, "declared_required": [ "symbol" ], "declared_params": [ "symbol" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"failed\",\"data\":\"Symbol parameter is required\"}" }, { "url": "https://x402.ottoai.services/web-extract", "quote_usdc": 0.005, "declared_required": [ "url" ], "declared_params": [ "url" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"status\":\"unavailable\",\"reason\":\"missing-param\",\"endpointId\":\"web-extract\",\"param\":\"url\"}" }, { "url": "https://data.greeneris.io/v1/global/lei", "quote_usdc": 0.005, "declared_required": null, "declared_params": [ "lei", "name", "country", "limit" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"ok\":false,\"endpoint\":\"/v1/global/lei\",\"error\":\"provide either lei=<20-char code> or name=\"}" }, { "url": "https://glim.sh/api/v1/twitter/get", "quote_usdc": 0.005, "declared_required": null, "declared_params": null, "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"Missing ref\",\"suggestion\":\"Use GET /api/v1/twitter/get/:ref or POST /api/v1/twitter/get with JSON {ref}.\"}" }, { "url": "https://macropulse.theaslangroupllc.com/api/fx/convert", "quote_usdc": 0.005, "declared_required": [ "from", "to" ], "declared_params": [ "from", "to", "amount", "date" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"missing_parameter\",\"message\":\"Both \\\"from\\\" and \\\"to\\\" are required.\",\"required\":{\"from\":\"ISO 4217 code, e.g. USD\",\"to\":\"ISO 4217 code, or a comma-separated list, e.g. EUR,GBP,JPY\"},\"optiona" }, { "url": "https://api.aventtech.com/lookup/domain", "quote_usdc": 0.005, "declared_required": [ "domain" ], "declared_params": [ "domain" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"query parameter 'domain' is required\"}" }, { "url": "https://payable.nsgoods.org/payable", "quote_usdc": 0.005, "declared_required": [ "resource" ], "declared_params": [ "resource" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"missing resource\",\"usage\":\"/payable?resource=\"}\n" }, { "url": "https://trust.nsgoods.org/agent-trust", "quote_usdc": 0.005, "declared_required": [ "agent" ], "declared_params": [ "agent", "chain" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"bad_request\",\"message\":\"query param 'agent' must be a non-negative integer (ERC-8004 agentId)\"}\n" }, { "url": "https://solar.nsgoods.org/solar-legality", "quote_usdc": 0.005, "declared_required": [ "state" ], "declared_params": [ "state" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"missing state\",\"usage\":\"/solar-legality?state=california\"}\n" }, { "url": "https://sanctions.nsgoods.org/screen", "quote_usdc": 0.005, "declared_required": [ "address" ], "declared_params": [ "address", "chain" ], "settled_onchain": false, "tx_hash": null, "seller_error_body": "{\"error\":\"missing address\",\"usage\":\"/screen?address=&chain=\"}\n" } ] }