Agent Exchange x402 census and directory

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x402 resources priced under 1 cent

Catalog prices in USDC (atomic amount / 1e6) falling in the band "under 1 cent". 15,630 resources: 12,616 answer a valid 402 (80.7%), 1,659 are dead (10.6%). Sorted by payers on record, then live verdict, then catalog freshness.

Page 5 of 50: previous next · 10,630 more are only in bazaar.json and the sitemaps

ResourceHostPriceNetworkVerdictPayersCatalogsDescription
POST /api/number-formatagent402.tools$0.001baselive120cdp, payaiNumber format: Format a number: thousands separators, fixed decimals, optional currency, o
POST /api/npvagent402.tools$0.001baselive120cdp, payaiNet present value (NPV): Compute the net present value of a stream of cashflows at a given
POST /api/nft-metadataagent402.tools$0.001baselive120cdp, payaiNFT metadata lookup: Resolve the metadata for a single NFT: title, description, image URLs
POST /api/moving-averageagent402.tools$0.001baselive120cdp, payaiMoving average (SMA + EMA): Compute simple (SMA) and exponential (EMA) moving averages ove
POST /api/memory/revokeagent402.tools$0.001baselive120cdpMemory revoke: Revoke a previously granted wallet's access to your namespace.
GET /api/memory/logagent402.tools$0.001baselive120cdp, payaiMemory audit log: Tamper-evident history of changes to a namespace - a hash-chained audit
GET /api/memory/grantsagent402.tools$0.001baselive120cdp, payaiMemory grants list: List the wallets you've granted access to your namespace, with their m
POST /api/memory/forgetagent402.tools$0.001baselive120cdpMemory forget: Delete a remembered document by id from the recall store.
POST /api/loan-paymentagent402.tools$0.001baselive120cdp, payaiLoan payment: Compute the monthly (or per-period) payment on a fully-amortizing loan: mort
POST /api/linear-regressionagent402.tools$0.001baselive120cdp, payaiLinear regression (OLS): Fit a least-squares line y = slope·x + intercept to two equal-len
POST /api/levenshteinagent402.tools$0.001baselive120cdp, payaiEdit distance: Levenshtein edit distance between two strings, plus a 0-1 similarity ratio.
POST /api/leap-yearagent402.tools$0.001baselive120cdp, payaiLeap year check: Check whether a year is a leap year and get related info: days in that ye
POST /api/jwt-verifyagent402.tools$0.001baselive120cdp, payaiJWT verify (HMAC): Verify an HS256/384/512 JWT signature against a secret and check expiry
POST /api/jsonlagent402.tools$0.001baselive120cdp, payaiJSONL convert: Convert between a JSON array and JSONL/NDJSON (one JSON object per line). m
POST /api/json-queryagent402.tools$0.001baselive120cdp, payaiJSON query: Extract a value from JSON by dot/bracket path, e.g. "items[2].name".
POST /api/json-pointeragent402.tools$0.001baselive120cdp, payaiJSON pointer: Resolve an RFC 6901 JSON Pointer (e.g. /items/0/name) against a JSON value.
POST /api/json-mergeagent402.tools$0.001baselive120cdp, payaiJSON deep merge: Deep-merge two JSON objects (b wins on conflicts; arrays are concatenated
POST /api/json-formatagent402.tools$0.001baselive120cdp, payaiJSON validate & format: Validate, pretty-print (any indentation, 0-8 spaces), or minify JS
POST /api/json-flattenagent402.tools$0.001baselive120cdp, payaiJSON flatten/unflatten: Flatten nested JSON to dot-path keys, or unflatten dot-path keys b
POST /api/json-diffagent402.tools$0.001baselive120cdp, payaiJSON diff: Deep-compare two JSON values. Returns a list of changed/added/removed paths (ca
POST /api/iso-weekagent402.tools$0.001baselive120cdp, payaiISO week number: Get the ISO 8601 week number, ISO day-of-week, quarter, and day-of-year f
POST /api/irragent402.tools$0.001baselive120cdp, payaiInternal rate of return (IRR): Compute the internal rate of return (IRR) of a cashflow str
POST /api/iban-validateagent402.tools$0.001baselive120cdp, payaiIBAN validate: Validate an IBAN: country code, length, and the ISO 13616 mod-97 checksum.
POST /api/html-to-markdownagent402.tools$0.001baselive120cdp, payaiHTML to Markdown: Convert an HTML fragment or document you already have into clean markdow
POST /api/html-stripagent402.tools$0.001baselive120cdp, payaiHTML strip to text: Strip all HTML tags and return plain text. Preserves block-level struc
POST /api/html-metaagent402.tools$0.001baselive120cdp, payaiHTML meta (from string): Extract <title>, <meta description>, OpenGraph/Twitter cards, can
POST /api/html-linksagent402.tools$0.001baselive120cdp, payaiHTML links: Enumerate every <a href> in an HTML string with its anchor text and rel attrib
POST /api/html-entitiesagent402.tools$0.001baselive120cdp, payaiHTML entities: Encode text to HTML entities or decode them back. mode: encode (default) or
POST /api/hmacagent402.tools$0.001baselive120cdp, payaiHMAC: HMAC signature of a message with a shared key. Algorithms: sha256 (default), sha512,
POST /api/hexagent402.tools$0.001baselive120cdp, payaiHex: Hex encode or decode text. mode: encode (default) or decode.
POST /api/forecast-sesagent402.tools$0.001baselive120cdp, payaiForecast (simple exponential: Simple exponential smoothing (SES) - level-only forecast for
POST /api/forecast-naiveagent402.tools$0.001baselive120cdp, payaiForecast (naive baselines): Three textbook baseline forecasts: mean (forecast = average of
POST /api/forecast-holtagent402.tools$0.001baselive120cdp, payaiForecast (Holt linear trend): Holt's linear trend method - level + trend (no seasonality).
POST /api/forecast-evalagent402.tools$0.001baselive120cdp, payaiForecast backtest (MAPE + RMSE): Backtest a forecasting method on the input series by hold
POST /api/financeagent402.tools$0.001baselive120cdp, payaiFinance: Financial math. op: "compound" (future value of principal at a rate) or "loan" (m
GET /api/feedback/summaryagent402.tools$0.001baselive120cdp, payaiFeedback tally by tool: What paying buyers said about each tool on this server: good and b
GET /api/ens-resolveagent402.tools$0.001baselive120cdp, payaiENS resolve: Resolve an ENS name (e.g. vitalik.eth) to its Ethereum address - so an agent
POST /api/email-validateagent402.tools$0.001baselive120cdp, payaiEmail validate: Validate an email address: syntax check plus live MX record lookup on the
POST /api/easter-dateagent402.tools$0.001baselive120cdp, payaiEaster date calculator: Compute the date of Easter Sunday for a given year using the Anony
POST /api/durationagent402.tools$0.001baselive120cdp, payaiDuration parse/humanize: Parse a duration like "2h30m" / "1d4h" / "90s" to seconds, or hum
GET /api/drug-adverse-eventsagent402.tools$0.001baselive120cdp, payaiFDA drug adverse events: Top reported adverse reactions for a drug from the FDA FAERS data
POST /api/defi-dex-volumeagent402.tools$0.001baselive120cdp, payaiDEX volume by protocol: Decentralized exchanges ranked by 24h spot volume with 7d, 30d, 1y
POST /api/dedupe-linesagent402.tools$0.001baselive120cdp, payaiDedupe lines: Remove duplicate lines, preserving first-seen order. Returns the deduped tex
POST /api/day-of-yearagent402.tools$0.001baselive120cdp, payaiDay of year: Get the day number within the year (1-366) for any date, plus days remaining,
POST /api/date-diffagent402.tools$0.001baselive120cdp, payaiDate difference: Difference between two dates/times in ms, seconds, minutes, hours, days,
POST /api/csv-lintagent402.tools$0.001baselive120cdp, payaiCSV lint: Validate CSV structure: consistent column counts across rows, properly closed qu
POST /api/cron-nextagent402.tools$0.001baselive120cdp, payaiCron next runs: Parse a 5-field cron expression and return the next N run times (UTC).
POST /api/crc32agent402.tools$0.001baselive120cdp, payaiCRC32: CRC-32 checksum of a text string (hex), the IEEE polynomial used by zip/png/gzip.
POST /api/correlationagent402.tools$0.001baselive120cdp, payaiCorrelation (Pearson): Pearson correlation coefficient between two equal-length numeric se
POST /api/compress-compareagent402.tools$0.001baselive120cdp, payaiCompression compare: Run the same input through gzip, brotli, and raw deflate at max setti
POST /api/coloragent402.tools$0.001baselive120cdp, payaiColor convert: Convert a color between hex, RGB, and HSL. Accepts "#1a2b3c", "rgb(26,43,60
POST /api/cidragent402.tools$0.001baselive120cdp, payaiCIDR calculator: Parse an IPv4 CIDR block: network address, broadcast, first/last host, ne
POST /api/checksumagent402.tools$0.001baselive120cdp, payaiMulti-digest checksum: Compute MD5, SHA-1, SHA-256, SHA-512, and CRC32 checksums of a stri
GET /api/chain/total-supplyagent402.tools$0.001baselive120cdp, payaiToken total supply: The circulating total supply of an ERC-20, read from the token contrac
GET /api/chain/storageagent402.tools$0.001baselive120cdp, payaiContract storage slot: Read one 32-byte storage slot from a contract, the raw state under
GET /api/chain/nonceagent402.tools$0.001baselive120cdp, payaiAccount nonce: The transaction count of an account, which is the nonce its next transactio
GET /api/chain-infoagent402.tools$0.001baselive120cdp, payaiChain info snapshot: One-call chain state snapshot: chain id, latest block number, and cur
POST /api/caseagent402.tools$0.001baselive120cdp, payaiCase convert: Convert text between camelCase, PascalCase, snake_case, kebab-case, CONSTANT
POST /api/card-validateagent402.tools$0.001baselive120cdp, payaiCard number validate: Validate a payment card number (Luhn checksum) and detect the brand.
POST /api/calcagent402.tools$0.001baselive120cdp, payaiCalculator: Safely evaluate an arithmetic expression (+ - * / % ^ and parentheses). No cod
POST /api/cagragent402.tools$0.001baselive120cdp, payaiCAGR: Compound annual growth rate between a beginning and ending value over N years: (end/
POST /api/business-daysagent402.tools$0.001baselive120cdp, payaiBusiness days: Count business days (Mon–Fri) between two dates, inclusive of the start, ex
POST /api/brotli-compressagent402.tools$0.001baselive120cdp, payaiBrotli compress: Compress a string with Brotli (RFC 7932) and return it as base64. Brotli
POST /api/break-evenagent402.tools$0.001baselive120cdp, payaiBreak-even analysis: Break-even point for a product: the units and revenue at which total
POST /api/base64agent402.tools$0.001baselive120cdp, payaiBase64: Base64 encode or decode text. mode: encode (default) or decode. Handles URL-safe b
POST /api/base58agent402.tools$0.001baselive120cdp, payaiBase58: Base58 encode or decode text (Bitcoin/IPFS alphabet). mode: encode (default) or de
POST /api/base32agent402.tools$0.001baselive120cdp, payaiBase32: Base32 (RFC 4648) encode or decode text. mode: encode (default) or decode.
POST /api/b20-feature-idagent402.tools$0.001baselive120cdp, payaiB20 feature id: Pure-CPU helper: turn a B20 feature string (e.g. base.b20_asset) into its
POST /api/asn-infoagent402.tools$0.001baselive120cdp, payaiASN + IP geolocation: Look up the Autonomous System (ASN), prefix, country, registry, and
POST /api/annuityagent402.tools$0.001baselive120cdp, payaiAnnuity present/future value: Present and future value of a level annuity (equal periodic
POST /api/amortizationagent402.tools$0.001baselive120cdp, payaiAmortization schedule: Build the full per-period amortization schedule for a fully-amortiz
POST /api/ageagent402.tools$0.001baselive120cdp, payaiAge calculator: Compute a precise age (years, months, days) from a birth date to today (or
POST /api/xml-to-jsonagent402.tools$0.002baselive120cdp, payaiXML to JSON: Parse XML into a JSON object tree (attributes under _attrs, text under _text;
GET /api/x402-quoteagent402.tools$0.002baselive120cdp, payaix402 quote: Probe any URL and decode its HTTP 402 payment requirements (price, asset, netw
GET /api/world-bank-searchagent402.tools$0.002baselive120cdp, payaiSearch World Bank indicators: Search the World Bank indicator catalog (1,400+ indicators a
GET /api/weather-air-qualityagent402.tools$0.002baselive120cdp, payaiAir quality (global): Current air quality index and pollutant concentrations for any locat
POST /api/wallet-transactionsagent402.tools$0.002baselive120cdp, payaiWallet transaction history: Return the most recent asset transfers (incoming + outgoing) f
POST /api/wallet-balanceagent402.tools$0.002baselive120cdp, payaiWallet balance (native + ERC-20): Look up the native coin balance (ETH/MATIC) plus every E
POST /api/unshorten-urlagent402.tools$0.002baselive120cdp, payaiURL unshortener: Follow a short link's redirect chain (bit.ly, t.co, youtu.be, tracking li
POST /api/totpagent402.tools$0.002baselive120cdp, payaiTOTP code: Compute the current TOTP code (RFC 6238, 30s period, SHA-1, 6 digits) from a ba
POST /api/token-balancesagent402.tools$0.002baselive120cdp, payaiToken balances (named contracts): ERC-20 balances of one wallet for a NAMED list of token
POST /api/srt-convertagent402.tools$0.002baselive120cdp, payaiSubtitle convert (SRT/VTT): Convert subtitles between SRT, WebVTT, plain text, and JSON cu
POST /api/sol-token-lookupagent402.tools$0.002baselive120cdp, payaiSolana token lookup: Resolve a Solana token by mint, ticker or name through a Solana DEX a
POST /api/sitemapagent402.tools$0.002baselive120cdp, payaiSitemap reader: Fetch and parse a sitemap.xml (or sitemap index): returns up to 500 URLs w
POST /api/redactagent402.tools$0.002baselive120cdp, payaiRedact PII: Mask emails, phone numbers, credit-card-like numbers, IPs, and SSNs in text. R
POST /api/perp-orderbookagent402.tools$0.002baselive120cdp, payaiPerp order book: The live level-2 order book for one perpetual: best bid and ask, mid, spr
POST /api/perp-funding-screeneragent402.tools$0.002baselive120cdp, payaiPerp funding screener: Every listed perpetual ranked by current funding rate, the most pos
POST /api/perp-dexsagent402.tools$0.002baselive120cdp, payaiPerp dexs (HIP-3: Every builder-deployed perpetuals dex on Hyperliquid (HIP-3): dex name,
POST /api/options-volumeagent402.tools$0.002baselive120cdp, payaiOnchain options volume by: Onchain options protocols ranked by 24h notional volume with 7d
POST /api/openapi-to-curlagent402.tools$0.002baselive120cdp, payaiOpenAPI to curl command: Build a runnable curl command for one operation in an OpenAPI 3.x
POST /api/openapi-lintagent402.tools$0.002baselive120cdp, payaiOpenAPI agent-readiness lint: Score an OpenAPI 3.x or Swagger 2.x spec on agent-readiness
POST /api/nft-flooragent402.tools$0.002baselive120cdp, payaiNFT floor price: Get the current floor price for an NFT collection across OpenSea + LooksR
POST /api/nft-collectionagent402.tools$0.002baselive120cdp, payaiNFT collection metadata: Fetch NFT collection (ERC-721 / ERC-1155) metadata by contract ad
POST /api/mev-recent-blocksagent402.tools$0.002baselive120cdp, payaiMEV recent blocks: Last N MEV-Boost-built blocks from a major MEV-Boost relay's public dat
POST /api/mev-builder-shareagent402.tools$0.002baselive120cdp, payaiMEV builder share: Builder market share aggregated over the last N MEV-Boost blocks from a
GET /api/metaagent402.tools$0.002baselive120cdp, payaiPage metadata: Fetch page metadata for a URL: title, description, OpenGraph, Twitter cards
POST /api/l2-tvlagent402.tools$0.002baselive120cdp, payaiL2 TVL ranking: Top L2s by Total Value Locked (TVL) from an open DeFi analytics API. Retur
POST /api/l2-gas-comparisonagent402.tools$0.002baselive120cdp, payaiL2 gas comparison: Current gas snapshot across Ethereum + supported L2s (Base, Polygon, Ar
POST /api/keywordsagent402.tools$0.002baselive120cdp, payaiKeyword extraction: Top keywords and two-word phrases by frequency (stopwords removed). Ch
POST /api/kalshi-marketsagent402.tools$0.002baselive120cdp, payaiKalshi markets list: List Kalshi markets (CFTC-regulated US event contracts). Filter by st

Page 5 of 50: previous next · 10,630 more are only in bazaar.json and the sitemaps