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Data & analytics
1,731 listings from 1,198 providers, 1,360 answering · counted
Filed by addrbook from the words in each listing, so a heading says what a listing claims to be for.
Showing 1–25, one row per provider, those answering first · names and descriptions as their source publishes them
- JSONL convertagent402.toolsConvert between a JSON array and JSONL/NDJSON (one JSON object per line). mode: to-jsonl (array → lines) or from-jsonl (lines → array). For streaming records to and from agents and datasets.Livechecked Evidence 2/4x402x402 Bazaar1 payer28 more from agent402.tools
- kaisha-api.hp-vladic.workers.dev/calendar/holidayskaisha-api.hp-vladic.workers.devJapanese national holidays for a given year (1955-2027), from the official Cabinet Office dataset.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- SiteCheckapi.sitecheck-api.workers.devCurrency exchange rates from the European Central Bank (about 30 currencies, back to 1999): latest or a given date, amount conversion, or a daily time series between two dates. Source: ECB reference rates via Frankfurter.Livechecked Evidence 2/4x402x402 Bazaar12 payers1 more from sitecheck-api.workers.dev
- www.robbiegeorgephotography.com/v1/query/atomic/robbie-george-biography-platewww.robbiegeorgephotography.comAtomic canonical resolution for the registered Robbie George Biography Plate™ identifier. x402 payment grants one endpoint-level retrieval only. It does not grant training, embedding, bulk ingestion, redistribution, resale, synchronization, private-dataset construction, derivative-dataset creation, or Robbie's Razor framework implementation rights.Livechecked Evidence 2/4x402x402 Bazaar12 payers
- Open dataset finder + licenceapexfaucet.xyzFind open research datasets with a plain licence verdict per dataset: public domain, attribution, share-alike, no-derivatives, non-commercial. Find open data...Livechecked Evidence 2/4x402x402 Bazaar1 payer
- api.govparse.io/v1/stats/opportunitiesapi.govparse.ioHow much open federal money is in the dataset right now? Headline aggregates: active SAM.gov contract opportunities (and how many still have an open deadline), Grants.gov opportunities by status (posted vs forecasted), and USAspending award records on file with their total dollar amount.Livechecked Evidence 2/4x402x402 Bazaar10 payers3 more from govparse.io
- Macaroon Networkapi.macaroonnetwork.comPart of the Domain Web Trust family: live DNS resolution check for a domain, useful for confirming a domain has valid DNS before an agent interacts with a website or merchant. Reports whether it resolves and to which IPv4/IPv6 addresses. Queries the public DNS protocol directly at request time -- no third-party dataset, no cached or scraped WHOIS/registry data, so there is no resale-terms question.Livechecked Evidence 2/4x402x402 Bazaar10 payers4 more from macaroonnetwork.com
- IP Geolocation Lookupgeoip.bip-rep.comResolve any public IPv4/IPv6 address (or hostname) to geolocation for analytics, fraud, and ops agents. Returns ISO country code, region, city, IANA timezone, latitude/longitude, EU membership flag, and the matched network range. Backed by an embedded MaxMind GeoLite2 dataset (no external API calls). Private and reserved IP ranges are rejected; no shell access.Livechecked Evidence 1/4x402x402 Bazaar9 payers
- Japan Business Calendartorii-gateway-production.ichis-lab.workers.devTell whether a given date is a Japanese business day. Japanese national holidays and business-day calculations derived from the Cabinet Office official CSV. Returns holidays for a given year, plus business-day arithmetic used by invoicing, logistics and HR systems in Japan.Livechecked Evidence 1/4x402x402 Bazaar8 payers
- geoprimitivesapi.geoprimitives.devGive it a latitude and longitude and it answers with what the nautical chart says about the water there: the depth range of the charted depth area containing the position, the nearest charted sounding and how far away it is, and the chart's own zone of confidence for that area. Parameters go in the query string: this is a GET, there is no body. NOT FOR NAVIGATION, stated first because it is a condition of using the source. This is derived from NOAA Electronic Navigational Charts and redistributed; it is not an official NOAA ENC and does not meet federal chart carriage regulations under 33 CFR 164 or SOLAS chapter V, which only charts from NOAA or a certified NOAA ENC distributor do. Every response repeats this under `disclaimer`. NOAA and NOAA ENC are registered trademarks of NOAA, which does not endorse this service. COVERAGE is 65 NOAA ENC cells of usage bands 3, 4 and 5 over five working areas of southeast and southcentral Alaska: Sitka Sound; Kasaan Bay and Clarence Strait; Metlakatla, Ketchikan and Revillagigedo Channel; Juneau, Gastineau Channel and Lynn Canal; and Cordova with eastern Prince William Sound. It is not statewide, it is not the whole coast, and the small-scale cells that would make it look wider were deliberately left out. The coverage check reads the coordinate, so it runs in the handler after payment rather than in front of the 402: a position off the charts is quoted like any other and then refused with outside_coverage. A refusal does not settle and nothing is charged, but it costs a signature and a round trip, so check the coverage first. Every response repeats it under `coverage`. NOTHING IS INTERPOLATED, and that is the difference between this and GET /v1/elevation. Terrain is a continuous surface and sampling it between pixels is legitimate; a chart is a set of assertions a hydrographer made, and averaging two of them invents a depth nobody surveyed. So `depthAreaMinimum` is DRVAL1 of the charted depth area the position falls inside, the Livechecked Evidence 1/4x402x402 Bazaar8 payers1 more from geoprimitives.dev
- Interzoid Data APIsapi.interzoid.comPerson name matching and deduplication: generates an AI-powered similarity key for an individual's full name, so variations such as 'Bob Smith', 'Robert Smith', and 'Smith, Robert J.' produce the same key. Group records on the key to find duplicate contacts and customers across CRM, marketing, and customer datasets.Livechecked Evidence 1/4x402x402 Bazaar7 payers2 more from interzoid.com
- Ozmium Agent APIozmium.orgLive prices from TWO labeled venues per symbol: Coinbase exchange spot (+ 24h stats) AND the gTrade venue leg { gains: { pairIndex, mark, index } } — mark is what fills on Gains, index is the oracle spot liquidations use. Same feeds the human chart runs on; the cross-venue spread between them is real, tradeable divergence (lead/lag arbitrage). Covers Gains-listed symbols Coinbase lacks (e.g. Full details: GET /v1.Livechecked Evidence 1/4x402x402 Bazaar7 payers
- houjin.agentic-jp.com/statshoujin.agentic-jp.comDataset metadata for this Japanese (JP) corporate-number API — how many corporations are loaded and which prefectures are covered.Livechecked Evidence 1/4x402x402 Bazaar7 payers
- SiteCheck Trade & Energyapi.tradeenergy-api.workers.devWeekly downbound grain barge rates on the Upper Mississippi (Cincinnati, St Louis, Cairo-Memphis and two further rate columns) from the USDA dataset on data.bts.gov. The file ends in November 2023; units are not stated in the dataset, so none are given. No draft or lock-status data.Livechecked Evidence 1/4x402x402 Bazaar7 payers5 more from tradeenergy-api.workers.dev
- api.loyalspark.online/x402-gateway/transferapi.loyalspark.onlineOnchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. On the paid retry send the payment together with header x-api-key: lsk_... or Authorization: Bearer lsk_.... A payment without a live key is not charged. Read key, no browser: POST https://api.loyalspark.online/x402-gateway/register-agent. HTTP 402 is $0.01 USDC on Base. Pay it and do not send an API key. You receive lsk_ once, scope read only: list your programs, rewards, balances, and analytics. That key cannot mint, deploy a program, create rewards, or trade. A new wallet gets a 45-day Pro trial (5 agents, 10,000 calls/month), then Free (1 agent, 200 calls/month, 1,000 tokens minted/month, 1.25% mint fee) unless that wallet pays. The $0.01 is the call price, not a subscription. No free seat returns 403 before any charge. Write scopes (mint, create_program, manage_rewards, trade) use the same plan: dashboard https://loyalspark.online/merchant → AI Agents, or free SIWE — POST https://api.loyalspark.online/siwe-nonce, sign Chain ID 8453 with the exact phrase 'Register Loyal Spark merchant agent', then POST {message, signature, name, scopes} to https://api.loyalspark.online/agent-register-siwe. Look first with no key: GET https://api.loyalspark.online/x402-gateway/public-programs ($0.001, active programs, not your own list). Guide: https://loyalspark.online/.well-known/skills/00-getting-started.md The call is scoped to the wallet behind that key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.Livechecked Evidence 1/4x402x402 Bazaar7 payers3 more from loyalspark.online
- npm-downloads-range.hergertsynthora.com/servicenpm-downloads-range.hergertsynthora.comReturns a per-day download time series for an npm package over a period from keyless api.npmjs.org — the raw signal for trend and growth-rate detection. Lets autonomous agents compute momentum/decline and feed agent-to-agent dependency-selection scoring. Ranking surface for trajectory. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.Livechecked Evidence 1/4x402x402 Bazaar6 payers
- Maxwell x402api.maxwellinternational.aiOFAC SDN screen by name, alias (aka/fka/nka), or UID against the Treasury SDN list joined with alt.csv and add.csv. A clean no-match is a valid screening result and is charged.Livechecked Evidence 1/4x402x402 Bazaar6 payers13 more from maxwellinternational.ai
- QuantX402quantx402.appTrack Record: every stored Kronos signal and its scored outcome, misses included (the signal+outcome dataset). Pay per call via x402. Not financial advice.Livechecked Evidence 1/4x402x402 Bazaar6 payers
- agentbit.app/v1/util/transformagentbit.appDeterministic utility operations for agents: sha256/sha512/HMAC hashing, JWT decode, base64 encode/decode, UUID generation, JSON validation, CSV↔JSON, XML→JSON, URL parsing and semver comparison. Sub-millisecond, no external calls.Livechecked Evidence 1/4x402x402 Bazaar6 payers1 more from agentbit.app
- JSON Validate, Repair, Convert,json-suite.underscoredone.comEvery agent and developer hits broken or confusing JSON. This tool handles the common headaches in one place: check whether JSON is valid with the exact error location, repair near-JSON with typos, pretty-print or minify, pull values out with a path expression, diff two documents, convert to and from YAML or CSV, produce a byte-stable canonical form for hashing, validate against a schema, and report size and structure. Same input, same output, no side effects.Livechecked Evidence 1/4x402x402 Bazaar6 payers
- CORE CSV Analyzerapi.coregroupimmo.comUse this service before importing CSV to check data quality: missing cells, duplicate rows, required columns and declared string, integer, number, boolean or date types. Provide raw CSV with unique headers; comma, semicolon and tab delimiters supported. Max 1 MiB UTF-8, 10000 data rows and 100 columns. No URL fetching. Invalid business data returns valid=false.Livechecked Evidence 1/4x402x402 Bazaar6 payers
- payments-intel-production.up.railway.app/v1/chainpayments-intel-production.up.railway.appWhat are the basic facts of this chain (CAIP-2 id, gas token, explorer, x402/MPP settlement, stablecoins)? Cited chain facts from a prepared dataset: CAIP-2 chain id, gas token, finality class, block explorer, whether x402 and MPP settle there, and stablecoins. Fields not established from a source are the string "unknown". Unknown chains and malformed input return 404/400 and are never charged.Livechecked Evidence 1/4x402x402 Bazaar6 payers1 more from payments-intel-production.up.railway.app
- NBU Data Ukrainenbu.navistri.comDaily official NBU exchange-rate series of one currency against the hryvnia (UAH) for a period of up to 366 days, plus min, max and % change. Call it to chart or analyse UAH moves, compute averages for Ukrainian reporting, or check a rate across several dates in one paid call. Params: currency (default USD), from and to (YYYY-MM-DD; default the last 31 days).Livechecked Evidence 1/4x402x402 Bazaar6 payers
- x402-v2-mint-csv-normalize.vercel.app/v1/csv-normalizex402-v2-mint-csv-normalize.vercel.appParse CSV into JSON rows keyed by trimmed snake_case headers. Offline. Amp port.Livechecked Evidence 1/4x402x402 Bazaar6 payers1 more from x402-v2-mint-csv-normalize.vercel.app
- AISkills402 API: CSV Repairapi.aiskills402.comCSV Repair API: turns CSV a parser rejects into valid CSV without changing any cell - fixes quotes, pads short rows, unwraps Markdown tables, chat text and fences; 1,250 and 007 stay as written. $0.004 USDC per call, no account, no language model: a too-long row, an ambiguous row or prose with no table gets a paid CANNOT REPAIR verdict. POST JSON {input} up to 60 000 chars; free example at https://api.aiskills402.com/v1/run/csv-repair/exampleLivechecked Evidence 1/4x402x402 Bazaar5 payers9 more from aiskills402.com