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/farcaster-by-address—No price listedReverse-lookup an Ethereum address to its Farcaster account (via verified address). Returns FID, username, display name, bio, follower/following counts, and Warpcast URL, or found=false if the address has not verified on Farcaster. Use to label wallet activity with the owner's Farcaster identity when ENS is missing. On mppscan and x402 Bazaar
• POST/api/keywords—No price listedTop keywords and two-word phrases by frequency (stopwords removed). Cheap, deterministic signal for routing, tagging, and dedup. On mppscan and x402 Bazaar
• POST/api/kalshi-event—No price listedGet full detail for a single Kalshi event with all its nested markets. Mutually-exclusive flag tells you whether the markets partition outcome space (e.g. one winner). Useful for: viewing all candidates in an election, all CPI ranges, all weather buckets. On mppscan and x402 Bazaar
• POST/api/skill/inflation-check—No price listedIs the economy in recession territory? CPI, fed funds, unemployment, and Sahm rule in one call. Inflation check skill pack: one x402 payment runs 4 underlying tools (cpi-yoy, fed-funds, unemployment-rate, sahm-rule); partial-success per step. On mppscan and x402 Bazaar
• GET/api/research-company—No price listed On mppscan
• POST/api/crypto-indicators—No price listedRSI, MACD, EMA 20/50/200, SMA 20/50, Bollinger bands, ATR and VWAP computed deterministically from live candles for one coin and interval, with the latest series points and a plain-language summary. Use it when an agent needs standard technical indicators without fetching candles and computing them itself. On mppscan and x402 Bazaar
• POST/api/color—No price listedConvert a color between hex, RGB, and HSL. Accepts "#1a2b3c", "rgb(26,43,60)", or "hsl(210,40%,17%)". On mppscan and x402 Bazaar
• POST/api/image-resize—No price listedResize an image to given pixel dimensions. Send a base64 PNG/JPEG/BMP and width and/or height (give one to scale proportionally). Returns the resized image. Deterministic, no network. On mppscan and x402 Bazaar
• POST/api/farcaster-profile—No price listedLookup a Farcaster profile by username or FID. Returns FID, username, display name, bio, profile picture URL, follower/following counts, and the canonical Warpcast URL. Use to label cast authors, validate a Farcaster handle, or fetch a profile for display. On mppscan and x402 Bazaar
• GET/api/yield-curve-spread—No price listedDerived 2s10s and 3m10y Treasury yield-curve spreads (in basis points) plus a boolean recession-signal flag when the curve is inverted. Source: FRED constant-maturity yields (public domain). No params. On mppscan and x402 Bazaar
• POST/api/robots-check—No price listedFetch a site's robots.txt and answer: may this user-agent crawl this path? Returns the matched rule and all declared sitemaps. On mppscan and x402 Bazaar
• GET/api/drug-ndc—No price listedLook up the FDA National Drug Code directory (openFDA) by NDC or by brand or generic name: product NDC, labeler, dosage form, routes, active ingredients with strengths, marketing category and application number, pharmacologic class, marketing and listing dates, and the package NDCs with their descriptions. The answer says how many products matched. Live FDA data, no key. On x402 Bazaar
• GET/api/workday-count—No price listed On mppscan
• POST/api/tls-cert—No price listedInspect the TLS certificate of any public host: subject, issuer, validity window, days remaining, SANs, and SHA-256 fingerprint. On mppscan and x402 Bazaar
• GET/api/onchain-sql-schema—No price listedThe table + column schema for the onchain-sql tool - every queryable table (base.events, base.transactions, base.blocks, base.decoded_user_operations, base.transaction_attributions, solana.instructions, …) with its columns and types. Fetch once, then write SQL with confidence. On mppscan and x402 Bazaar
• POST/api/a2a-card-validate—No price listedValidate an A2A (Agent2Agent protocol) Agent Card: required fields, skill shape, transport names, capability flags - spec v0.3 structural core. Returns errors, interop warnings, and a normalized summary (skills, interfaces, capabilities). Deterministic mini-A2A tooling - check a card before your agent trusts it. On mppscan and x402 Bazaar
• GET/api/vin-decode—No price listedDecode a vehicle VIN via the US NHTSA vPIC database: make, model, year, trim, body class, engine, fuel type, plant and vehicle type. Accepts full or partial VINs. Use it when an agent holds a VIN and needs the vehicle's official specification - live government data, no key. On mppscan and x402 Bazaar
• GET/api/crypto-price—No price listedLive spot price for one or many coins in any quote currency: last price, 24h change, 24h volume and market cap per coin, from a maintained market feed and answered in under a second. Use it when an agent needs a current crypto price to size, compare or display, or a cheap read to poll on a schedule. On mppscan and x402 Bazaar
• POST/api/amortization—No price listedBuild the full per-period amortization schedule for a fully-amortizing loan. Each row reports the period number, payment, the principal vs. interest split for that payment, and the remaining balance after that payment. Use this when the user wants to see how interest tapers over the life of the loan, or to model an extra-payment scenario by reading the balance at any period. On mppscan and x402 Bazaar
• POST/api/sol-swap-quote—No price listedExecutable swap quote on Solana from a DEX aggregator: input and output mint, amount in base units, slippage in bps - returns out amount, minimum out after slippage, price impact percent, the routed DEX labels in hop order with split percentages, the USD value of the swap and the context slot. A real multi-hop route across Solana DEX liquidity, so the number reflects depth, not a spot price. Quote only - nothing is signed or sent. Keyless. Powered by Jupiter. On mppscan and x402 Bazaar
• POST/v1/metered/messages—No price listedThe Anthropic Messages wire priced from the request itself: the 402 quotes this exact body, from $0.001, with upto buyers settling actual usage under the quote. Use it when an agent built on the Anthropic SDK, or Claude Code, needs any supported model paid per call with no account. On mppscan and x402 Bazaar
• POST/api/stablecoin-supply-history—No price listedDaily total stablecoin supply in USD over time, for all chains or one chain, per peg currency, with a window summary. Use it when an agent wants stablecoin supply as a liquidity or risk-appetite signal or needs the history behind a headline supply figure. On mppscan and x402 Bazaar
• POST/api/pdf-merge—No price listedCombine several PDFs into one, in order. Body: {"urls":["https://…/a.pdf","https://…/b.pdf"]}. Returns the merged PDF as base64 plus page count and size. On mppscan and x402 Bazaar
• POST/api/skill/macro-dashboard—No price listedThe full macro + crypto dashboard in one call: 5 FRED series, 5 Treasury reads, yield-curve spread, crypto market/trending/global, and live gas - a 14-tool macro + crypto basket, bundled below its a la carte price. Macro dashboard refresh skill pack: one x402 payment runs 14 underlying tools (fred-release-calendar, fed-funds, cpi-yoy, unemployment-rate, sahm-rule, yield-curve-spread, treasury-yield-curve, treasury-yield-history, treasury-debt, treasury-avg-rates, crypto-market, crypto-trending. On mppscan and x402 Bazaar
• GET/api/treasury-yield-history—No price listedLast N business days of US Treasury constant-maturity yields, oldest→newest. Source: FRED DGS* series (St. Louis Fed), public domain. On mppscan and x402 Bazaar

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