{"uid":"cap_pcDfsj419nqZNJN1m-l4M","slug":"x402stock-xyz-us-m2-money-supply-957eec5a","name":"x402stock.xyz US M2 Money Supply","description":"US M2 money stock, monthly, in billions of dollars (seasonally adjusted), with the latest value, prior month, month-over-month and year-over-year change, and recent history. No ticker needed. A liquidity gauge watched for inflation and risk-asset context. Sourced from the St. Louis Fed (FRED). From x402stock, a pay-per-call market & economic data API. Pay per request in USDC via x402, no API key.","url":"https://x402stock.xyz/api/v1/money-supply","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"unit":"billions_of_usd","as_of":"2026-04-01T00:00:00.000Z","prior":{"date":"2026-03-01","value":21955.7},"title":"M2 Money Stock","change":56.6,"latest":{"date":"2026-04-01","value":22012.3},"source":"fred","history":[{"date":"2026-04-01","value":22012.3}],"frequency":"monthly","series_id":"M2SL","yoy_percent":3.9,"change_percent":0.26}},"example":{"request":{"properties":"current"},"response":{"unit":"billions_of_usd","as_of":"2026-04-01T00:00:00.000Z","prior":{"date":"2026-03-01","value":22686.4},"title":"M2 Money Stock","change":118.1,"latest":{"date":"2026-04-01","value":22804.5},"source":"fred","history":[{"date":"2026-04-01","value":22804.5},{"date":"2026-03-01","value":22686.4},{"date":"2026-02-01","value":22627},{"date":"2026-01-01","value":22429.3},{"date":"2025-12-01","value":22353.5},{"date":"2025-11-01","value":22277.4},{"date":"2025-10-01","value":22245.1},{"date":"2025-09-01","value":22170.3},{"date":"2025-08-01","value":22086.9},{"date":"2025-07-01","value":22020},{"date":"2025-06-01","value":21938.8},{"date":"2025-05-01","value":21834},{"date":"2025-04-01","value":21775.7},{"date":"2025-03-01","value":21693.7},{"date":"2025-02-01","value":21613.5},{"date":"2025-01-01","value":21548.1},{"date":"2024-12-01","value":21485.9},{"date":"2024-11-01","value":21452.2},{"date":"2024-10-01","value":21331.9},{"date":"2024-09-01","value":21269.5},{"date":"2024-08-01","value":21186.8},{"date":"2024-07-01","value":21095.3},{"date":"2024-06-01","value":21068.4},{"date":"2024-05-01","value":21020.7}],"frequency":"monthly","series_id":"M2SL","yoy_percent":4.72,"change_percent":0.52}},"exampleRequest":{"properties":"current"},"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_wF15RBL9AAz6uWZa9FoAp","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the current US M2 money stock (monthly, seasonally adjusted, in billions of dollars) with latest value, prior month, month-over-month and year-over-year changes, and recent history — sourced from FRED.","exampleAgentPrompt":"What's the latest US M2 money supply reading — give me the current value, how it changed from last month, and the year-over-year growth rate?","exampleUseCases":null,"resultDescription":"Returns a JSON object with: the FRED series ID and title, unit (billions of dollars), frequency (monthly), as_of date, latest month's value and date, prior month's value and date, dollar change, percent change month-over-month, year-over-year percent change, and an array of recent historical data points (date + value pairs).","failureModes":["Payment failure — x402 USDC payment not processed, returns 402 Payment Required","FRED data temporarily unavailable — upstream source outage may return 503 or error payload","No data returned if FRED has not yet published the latest monthly release","Malformed request — unsupported HTTP method returns 405"],"whenToPreferThis":"Use this endpoint when you need the current official US M2 money supply figure with computed deltas (MoM, YoY) in a single call, without needing a FRED API key. Ideal for macro dashboards, inflation context, or risk-asset analysis workflows. Prefer over direct FRED API access when you want pre-computed change metrics and a pay-per-call model with no subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:56:40.138Z","isFirstParty":false}