Web answer

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://agent402.tools

• POST/api/uuid-validate—No price listedValidate a UUID and report its version (1-8) and variant. Accepts hyphenated or braced forms. On mppscan and x402 Bazaar
• GET/api/fx-dashboard—No price listedSnapshot of all G10 spot exchange rates quoted against USD (EUR, GBP, JPY, CHF, CAD, AUD, NZD, SEK, NOK) using ECB reference rates. Includes the USD-strength index (simple geometric mean of inverse rates). No params. On mppscan and x402 Bazaar
• GET/api/answer—No price listedA synthesized answer to a natural-language question, grounded in a live web search and returned with source citations (URL, snippet). Use it when an agent needs a direct, current answer plus the receipts to verify or follow up, instead of reading several pages itself. On mppscan and x402 Bazaar
• POST/api/whois—No price listedDomain registration data via RDAP (the structured WHOIS successor): registrar, creation/expiry dates, status, nameservers. On mppscan and x402 Bazaar
• POST/api/captcha-generate—No price listedMint a stateless captcha challenge to gate your OWN endpoint: returns a human prompt plus a salted sha256 answer hash you keep and verify later (sha256(salt + normalized answer) === answerHash) - no server state, no shared secret. Types: math (arithmetic) or alnum (character code), difficulty 1–3. Deterministic tooling for running bot protection, not defeating it. On mppscan and x402 Bazaar
• GET/api/earthquakes—No price listedReal-time USGS earthquake feed: magnitude, place, time, depth, coordinates. Live government data, no key. On mppscan and x402 Bazaar
• POST/api/skill/brand-protection—No price listedIs this domain legitimate? WHOIS age, DNS resolution, scam/phishing search results, and HTTP headers for a quick trust assessment. Brand protection skill pack: one x402 payment runs 4 underlying tools (whois, dns-lookup, search, http-headers); partial-success per step. On mppscan and x402 Bazaar
• POST/api/url-code—No price listedPercent-encode or decode a string for URLs. mode: encode (default) or decode. component: true (default) uses encodeURIComponent semantics. On mppscan and x402 Bazaar
• POST/v1/audio/transcriptions—No price listedOpenAI's own transcription wire: POST multipart/form-data with a `file` part and get the transcript back. Point any Whisper-shaped SDK at this gateway and pay per call with USDC, no account and no API key. Same model and same four-minute cap as /api/transcribe, which takes a URL instead of an upload; /v1/pro/audio/transcriptions takes it to ten minutes. On mppscan and x402 Bazaar
• GET/api/edgar-search—No price listedGeneral-purpose full-text search across every SEC filing since 2001. Find any phrase in any filing - material-weakness language in 10-Ks, going-concern in 10-Qs, "Russia" exposure across all forms. Supports form-type, CIK, US-state, and date-window filters. Source: EDGAR full-text search (efts.sec.gov). On mppscan and x402 Bazaar
• GET/api/earnings-calendar—No price listed On mppscan
• POST/api/skill/openapi-audit—No price listedLint an OpenAPI spec and validate a sample payload against it - catch schema errors in one pass. OpenAPI spec audit skill pack: one x402 payment runs 3 underlying tools (openapi-lint, openapi-validate-payload, openapi-security-summary); partial-success per step. On mppscan and x402 Bazaar
• GET/api/world-bank-indicator—No price listedFetch a World Bank indicator time series for a country (e.g. GDP, inflation, unemployment, population). Open data, no key. On mppscan and x402 Bazaar
• GET/api/edgar-13f-dataset-head—No price listedA bounded head of ONE table in a Form 13F data set, read with two byte-range requests against sec.gov (the archive's central directory plus the first 256 KB of the chosen table) so the multi-hundred-MB zip is never downloaded. Returns the archive's members with sizes, the table's columns and its first rows (1-200, default 25) as objects: SUMMARYPAGE (per filing: holdings count, total value, confidential-omission flag), SUBMISSION (accession, filer CIK, period, form), COVERPAGE (manager name and. On mppscan and x402 Bazaar
• POST/v1/pro/chat/completions—No price listedOpenAI-compatible chat completions, pro tier: gpt-4o, gpt-4.1, gpt-6 sol, claude sonnet, gemini pro, grok - paid per call in USDC over x402. Same wire format as /v1/chat/completions with higher input/output caps (48k chars in, 4096 tokens out). On mppscan and x402 Bazaar
• POST/api/openapi-extract—No price listedFlatten an OpenAPI 3.x or Swagger 2.x spec into a structured list of callable endpoints - one row per operation with method, path, operationId, summary, tags, parameters (name / in / required / type), JSON-body flag, and documented response codes. Includes per-method and per-tag counts so an agent can pick what to call next without parsing the full spec. Output is sorted by path then method for stable, agent-friendly grouping. Pure CPU - deterministic, no network, no $ref dereferencing. On mppscan and x402 Bazaar
• POST/api/json-to-csv—No price listedConvert a JSON array of objects to CSV. Nested objects are flattened to dot-path columns. On mppscan and x402 Bazaar
• POST/api/skill/macro-economics—No price listedPull the canonical US macro dataset - yield curve, CPI, unemployment, fed funds, Sahm rule - without an API key. Macro economics skill pack: one x402 payment runs 7 underlying tools (treasury-yield-curve, yield-curve-spread, cpi-yoy, unemployment-rate, fed-funds, sahm-rule, fred-release-calendar); partial-success per step. On mppscan and x402 Bazaar
• POST/api/case—No price listedConvert text between camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, Title Case, lowercase and UPPERCASE. On mppscan and x402 Bazaar
• POST/api/leap-year—No price listedCheck whether a year is a leap year and get related info: days in that year, the next and previous leap years, and the Gregorian leap-year rule. On mppscan and x402 Bazaar
• POST/api/skill/content-grade—No price listedGrade a page's content quality - extract the readable content then analyze keyword density. Content grade skill pack: one x402 payment runs 3 underlying tools (extract, keywords, readability-score); partial-success per step. On mppscan and x402 Bazaar
• POST/v1/decisions—No price listedOpenAI's Decisions API on its own wire: point an OpenAI SDK's base URL here and client.decisions.create works unchanged, paid per call. Send input (text, or user messages with input_text parts) and questions; get back answers your code can branch on. predicate returns the probability a condition holds; choice returns one of your values with probabilities and confidence; score returns a probability-weighted position on your ordered levels. Up to 8 questions per call. On x402 Bazaar
• POST/v1/auto/gemini—No price listedGoogle's native generateContent wire on the auto tier. Send Gemini's own request shape (contents, systemInstruction, generationConfig, function declarations) and get Gemini's own response shape (candidates, usageMetadata) back. Point a Google GenAI SDK at this gateway and pay per request with USDC, no account. Also answers the Google-shaped path /v1beta/models/<model>:generateContent. On mppscan and x402 Bazaar
• GET/api/search-news—No price listedLive news search as clean JSON: recent articles ranked with title, URL, snippet, age, source and a breaking flag, with a freshness filter. Use it for current events and headlines where a general web index lags. On mppscan and x402 Bazaar
• GET/api/fred-series—No price listedFetch any of FRED's ~800,000 economic time series by series ID - GDP (GDPC1), CPI (CPIAUCSL), unemployment (UNRATE), fed funds (DFF), and so on. Supports date windowing and the standard FRED units transformations (lin, chg, ch1, pch, pc1, pca, cca, log). On mppscan and x402 Bazaar

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