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Also: country macroeconomic indicators (GDP, growth, inflation, unemployment, debt, current account, reserves, FDI, population and more) for ~217 economies from the World Bank World Development Indicators (CC BY 4.0). Pay per call with USDC via x402 (or MPP on Tempo). No account, no API key.","publisher":{"name":"apac-regnotes","url":"https://fx-reference-rates.regnotes.workers.dev"},"homepage":"https://fx-reference-rates.regnotes.workers.dev/openapi.json","repository":null,"version":"1.0.0","license":null,"protocols":["a2a"],"tags":["fx","forex","exchange-rates","currency","currency-converter","conversion","finance","ecb","usd","eur","jpy","cny","gpu-pricing","llm-pricing","cloud-pricing","ai","macroeconomics","world-bank","gdp","inflation","country-data","economic-indicators"],"pricing":null,"endpoints":[{"url":"https://fx-reference-rates.regnotes.workers.dev","type":"a2a","auth":"http","probeable":true}],"skills":[{"id":"v1-rates-latest","name":"Latest reference rates in any base","tags":["fx","forex","exchange-rates","currency","currency-converter","conversion","finance","ecb","usd","eur","jpy","cny","gpu-pricing","llm-pricing","cloud-pricing","ai","macroeconomics","world-bank","gdp","inflation","country-data","economic-indicators"],"description":"Today's exchange rates (forex reference rates, most recent ECB publication) for ~30 currencies in any base currency, e.g. USD to JPY, CNY, EUR, GBP, HKD, SGD, KRW, INR. Filter with symbols. Returns as_of date and source attribution. Price: $0.001 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged). Price: $0.001 USDC per call (x402 or MPP)."},{"id":"v1-convert","name":"Convert an amount between currencies","tags":["fx","forex","exchange-rates","currency","currency-converter","conversion","finance","ecb","usd","eur","jpy","cny","gpu-pricing","llm-pricing","cloud-pricing","ai","macroeconomics","world-bank","gdp","inflation","country-data","economic-indicators"],"description":"Currency converter: convert an amount between any two of ~30 currencies (e.g. 100 USD to JPY) at the latest ECB reference rate or as of a past date. Returns rate, result and as_of date. Price: $0.001 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged). Price: $0.001 USDC per call (x402 or MPP)."},{"id":"v1-rates-historical","name":"Reference rates on a date","tags":["fx","forex","exchange-rates","currency","currency-converter","conversion","finance","ecb","usd","eur","jpy","cny","gpu-pricing","llm-pricing","cloud-pricing","ai","macroeconomics","world-bank","gdp","inflation","country-data","economic-indicators"],"description":"ECB reference rates on a given date in any base; non-publication days fall back to the previous publication day (as_of). Price: $0.002 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged). Price: $0.002 USDC per call (x402 or MPP)."},{"id":"v1-rates-timeseries","name":"Daily time series for a currency pair","tags":["fx","forex","exchange-rates","currency","currency-converter","conversion","finance","ecb","usd","eur","jpy","cny","gpu-pricing","llm-pricing","cloud-pricing","ai","macroeconomics","world-bank","gdp","inflation","country-data","economic-indicators"],"description":"Daily reference rate series for base/symbol between start and end (max 366 days), with min/max/mean and change. Price: $0.003 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged). Price: $0.003 USDC per call (x402 or MPP)."},{"id":"v1-dataset-csv","name":"Rate history as CSV, paged (newest first)","tags":["fx","forex","exchange-rates","currency","currency-converter","conversion","finance","ecb","usd","eur","jpy","cny","gpu-pricing","llm-pricing","cloud-pricing","ai","macroeconomics","world-bank","gdp","inflation","country-data","economic-indicators"],"description":"Bulk download, paged: publication days as CSV (date + one column per currency) in the requested base (default EUR), newest first. Default page = latest 60 days (~14 KB); page with offset and limit (1-1000 rows); optional start/end (YYYY-MM-DD) window. Total rows and next offset are in the X-Total-Rows / X-Next-Offset headers and a trailing comment line. Price: $0.01 USDC per page (up to 1000 rows) (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not cha…"},{"id":"v1-ai-gpu-prices","name":"Cloud GPU instance prices, cheapest first","tags":["fx","forex","exchange-rates","currency","currency-converter","conversion","finance","ecb","usd","eur","jpy","cny","gpu-pricing","llm-pricing","cloud-pricing","ai","macroeconomics","world-bank","gdp","inflation","country-data","economic-indicators"],"description":"Cloud GPU price comparison: hourly list prices of GPU / AI accelerator instances (H100, H200, A100, L40S, L4, A10G, T4, B200, MI300X, Trainium, Inferentia ...) on AWS and Azure in US, EU and Asia regions, on-demand and Azure Spot, ranked by USD per GPU-hour. Filter by gpu model, cloud, region, pricing. Official provider price APIs, refreshed daily. Price: $0.005 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged). Price: $0.00…"},{"id":"v1-ai-llm-prices","name":"LLM API token prices by model","tags":["fx","forex","exchange-rates","currency","currency-converter","conversion","finance","ecb","usd","eur","jpy","cny","gpu-pricing","llm-pricing","cloud-pricing","ai","macroeconomics","world-bank","gdp","inflation","country-data","economic-indicators"],"description":"LLM API pricing lookup: USD per 1M input, output and cached-input tokens plus context window for ~3,300 models (OpenAI GPT, Anthropic Claude, Google Gemini, DeepSeek, Llama, Mistral, Qwen, xAI ...) across providers (direct, Azure, Bedrock, Vertex, Together, Fireworks ...). Filter by model and provider; sorted by input price. Price: $0.005 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged). Price: $0.005 USDC per call (x402 or…"},{"id":"v1-ai-dataset","name":"AI price dataset (GPU or LLM rows) as JSON, paged","tags":["fx","forex","exchange-rates","currency","currency-converter","conversion","finance","ecb","usd","eur","jpy","cny","gpu-pricing","llm-pricing","cloud-pricing","ai","macroeconomics","world-bank","gdp","inflation","country-data","economic-indicators"],"description":"Bulk download, paged: cloud GPU instance price rows (AWS + Azure, 10 regions, on-demand and spot, GPU model/count, $/GPU-hour) or LLM API token price rows (~3,500 models) with per-source retrieval timestamps. section=gpu (default) or llm; default page = 80 rows (~22 KB); page with offset and limit (1-1000). Response carries total, next_offset and a ready-made next URL. Price: $0.02 USDC per page (up to 1000 rows) (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx er…"},{"id":"v1-macro-country","name":"Country macro snapshot: all indicators, latest + history","tags":["fx","forex","exchange-rates","currency","currency-converter","conversion","finance","ecb","usd","eur","jpy","cny","gpu-pricing","llm-pricing","cloud-pricing","ai","macroeconomics","world-bank","gdp","inflation","country-data","economic-indicators"],"description":"Country economic profile: latest value and year plus annual history (2005 onward) for 21 World Bank World Development Indicators: GDP (USD), real GDP growth, GDP per capita, GNI per capita PPP, CPI inflation, unemployment, population, exports/imports % GDP, current account % GDP, central government debt % GDP, tax revenue % GDP, real and lending interest rates, FDI inflows % GDP, total reserves, official exchange rate, remittances % GDP, Gini, life expectancy, internet users. 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Price: $0.01 USDC per call (x402 or MPP)."},{"id":"v1-macro-rank","name":"Rank countries by an indicator","tags":["fx","forex","exchange-rates","currency","currency-converter","conversion","finance","ecb","usd","eur","jpy","cny","gpu-pricing","llm-pricing","cloud-pricing","ai","macroeconomics","world-bank","gdp","inflation","country-data","economic-indicators"],"description":"Country ranking: sort all economies by one World Development Indicator for a year (default: each country's latest value), highest first or lowest first, optionally filtered by World Bank region or income group. Aggregates (World, regions) excluded unless requested. CC BY 4.0. Price: $0.02 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged). Price: $0.02 USDC per call (x402 or MPP)."},{"id":"v1-macro-dataset","name":"World Bank WDI dataset, paged by indicator","tags":["fx","forex","exchange-rates","currency","currency-converter","conversion","finance","ecb","usd","eur","jpy","cny","gpu-pricing","llm-pricing","cloud-pricing","ai","macroeconomics","world-bank","gdp","inflation","country-data","economic-indicators"],"description":"Bulk download, paged: annual values (2005 onward) for one World Development Indicator per page across all ~296 economies and aggregates, with indicator metadata and country names/regions/income groups. indicator=<key> (default first key; list at free /macro/indicators); default page = 50 countries (~25 KB); page with offset and limit (1-300). next points to the next country page, then to the next indicator. CC BY 4.0. Price: $0.02 USDC per page (one indicator, up to 300 countries) (fixed; one p…"}],"tools":["Latest reference rates in any base","Convert an amount between currencies","Reference rates on a date","Daily time series for a currency pair","Rate history as CSV, paged (newest first)","Cloud GPU instance prices, cheapest first","LLM API token prices by model","AI price dataset (GPU or LLM rows) as JSON, paged","Country macro snapshot: all indicators, latest + history","One indicator across countries and years","Rank countries by an indicator","World Bank WDI dataset, paged by indicator"],"extra":{"inputModes":["application/json"],"outputModes":["application/json"],"capabilities":{"streaming":false,"pushNotifications":false},"protocolVersion":"0.3.0"},"attribution":{"kind":"a2a_card","name":"a2a_card","summary":"a2a_card","version":"a2a_card","description":"a2a_card","homepageUrl":"a2a_card","publisherUrl":"a2a_card","publisherName":"a2a_card"}},"derived":{"capabilities":[{"slug":"documents.conversion","name":"Document Conversion","confidence":1,"provenance":"declared"},{"slug":"dev.docs-lookup","name":"Documentation Lookup","confidence":1,"provenance":"derived"},{"slug":"commerce.pricing","name":"Pricing & Quotes","confidence":1,"provenance":"derived"},{"slug":"finance.markets","name":"Markets & Trading","confidence":1,"provenance":"derived"},{"slug":"finance.banking","name":"Banking","confidence":1,"provenance":"derived"},{"slug":"infra.cloud","name":"Cloud Platforms","confidence":0.733,"provenance":"derived"}],"categories":["commerce","dev","documents","finance","infra"],"language":"en"},"observed":{"status":"live","statusReason":"Responded 17m ago.","lastOkAt":"2026-11-10T12:25:15.815Z","lastProbedAt":"2026-11-10T12:25:15.815Z","statusComputedAt":"2026-11-10T12:29:55.225Z","reliability30d":{"probes":5,"successRate":1,"p50Ms":45,"basis":"service","measures":{"availability":"availability","latency":"response time","tools":"tool surface observed","summary":"Checks reached the service itself."},"checks":{"total":5,"ok":5,"authBoundaryOk":0,"serviceOk":5,"note":"Counted from the observation rows for the window, checks of the server only (HTTP, A2A card, MCP initialize). ok = authBoundaryOk + serviceOk. `probes` is the sum of daily rollups and includes registry checks, so it can differ from `total`."}},"latestObservations":[{"at":"2026-11-10T12:25:15.815Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":45,"error":null,"detail":{"name":"FX Reference Rates API","signed":false,"version":"1.0.0","cardPath":"/.well-known/agent-card.json","skillCount":12,"protocolVersion":"0.3.0"}},{"at":"2026-11-10T03:29:23.599Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":23,"error":null,"detail":{"name":"FX Reference Rates API","signed":false,"version":"1.0.0","cardPath":"/.well-known/agent-card.json","skillCount":12,"protocolVersion":"0.3.0"}},{"at":"2026-11-09T17:31:37.267Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":42,"error":null,"detail":{"name":"FX Reference Rates API","signed":false,"version":"1.0.0","cardPath":"/.well-known/agent-card.json","skillCount":12,"protocolVersion":"0.3.0"}},{"at":"2026-11-09T08:26:54.947Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":48,"error":null,"detail":{"name":"FX Reference Rates API","signed":false,"version":"1.0.0","cardPath":"/.well-known/agent-card.json","skillCount":12,"protocolVersion":"0.3.0"}},{"at":"2026-11-08T23:31:27.953Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":51,"error":null,"detail":{"name":"FX Reference Rates API","signed":false,"version":"1.0.0","cardPath":"/.well-known/agent-card.json","skillCount":12,"protocolVersion":"0.3.0"}}],"tools":null,"package":null,"toolSurface":null,"endpointFacts":[]},"verification":{"claimed":false,"claimedAt":null,"proofs":[]},"provenance":{"sources":[{"source":"a2a_card","key":"https://fx-reference-rates.regnotes.workers.dev/.well-known/agent-card.json","url":"https://fx-reference-rates.regnotes.workers.dev/.well-known/agent-card.json","firstSeenAt":"2026-11-08T20:24:14.802Z","fetchedAt":"2026-11-08T20:24:14.802Z","normalizedAt":"2026-11-08T20:24:14.802Z"}]},"firstSeenAt":"2026-11-08T20:24:14.802Z","updatedAt":"2026-11-08T20:24:22.819Z"}