{"uid":"cap_kIDLzgAlYfIhSd6B4voYK","slug":"stationfx-m2-money-supply-863443d8","name":"StationFX M2 Money Supply","description":"Broad U.S. money supply including cash, checking, savings, and money market accounts. Monitored for inflation signals and monetary transmission analysis. Rapid M2 growth preceded the 2021-2023 inflation surge. Monthly frequency with full derived metrics and history back to 1959.","url":"https://stationfx.com/economic-data/money-supply/m2?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http","description":"Always \"http\" for HTTP endpoints"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string","description":"HTTP method. Always GET for StationFX query endpoints"},"queryParams":{"type":"object","properties":{"fmt":{"enum":["json","toon"],"type":"string","description":"Response format. Use toon for compact agent-friendly output."},"fields":{"type":"string","description":"Comma-separated metric names"},"date_to":{"type":"string","description":"End date YYYY-MM-DD"},"date_from":{"type":"string","description":"Start date YYYY-MM-DD"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","description":"Response format. Always \"json\" (or \"toon\" if fmt=toon was requested)"},"example":{"type":"object","properties":{"data":{"type":"array","items":{"type":"object","properties":{"date":{"type":"string","description":"Observation date YYYY-MM-DD"},"value":{"type":"number","description":"Raw observed value in series units"},"mom_pct":{"type":"number","description":"Month-over-month % change"},"yoy_pct":{"type":"number","description":"Year-over-year % change"},"zscore_5y":{"type":"number","description":"Z-score relative to trailing 5 years"},"mom_change":{"type":"number","description":"Month-over-month absolute change"},"yoy_change":{"type":"number","description":"Year-over-year absolute change"},"zscore_12m":{"type":"number","description":"Z-score relative to trailing 12 months"},"above_trend":{"type":"integer","description":"1 if value is above long-run trend, else 0"},"pct_rank_5y":{"type":"number","description":"Percentile rank over trailing 5 years (0-100)"},"rolling_3m_avg":{"type":"number","description":"3-month rolling average"},"rolling_12m_avg":{"type":"number","description":"12-month rolling average"},"trend_direction":{"type":"integer","description":"Trend: 1 rising, -1 falling, 0 flat"}}},"description":"Observations ordered by date ascending"},"meta":{"type":"object","description":"Series metadata: source_key (FRED series ID), units, frequency (D/W/M/Q/A), date_from, date_to, fields"}},"description":"Station f(x) response with metadata and pre-computed derived metrics"}}}}},"responseSchema":{"type":"json","schema":{"type":"object","properties":{"data":{"type":"array","items":{"type":"object","properties":{"date":{"type":"string","description":"Observation date YYYY-MM-DD"},"value":{"type":"number","description":"Raw observed value in series units"},"mom_pct":{"type":"number","description":"Month-over-month % change"},"yoy_pct":{"type":"number","description":"Year-over-year % change"},"zscore_5y":{"type":"number","description":"Z-score relative to trailing 5 years"},"mom_change":{"type":"number","description":"Month-over-month absolute change"},"yoy_change":{"type":"number","description":"Year-over-year absolute change"},"zscore_12m":{"type":"number","description":"Z-score relative to trailing 12 months"},"above_trend":{"type":"integer","description":"1 if value is above long-run trend, else 0"},"pct_rank_5y":{"type":"number","description":"Percentile rank over trailing 5 years (0-100)"},"rolling_3m_avg":{"type":"number","description":"3-month rolling average"},"rolling_12m_avg":{"type":"number","description":"12-month rolling average"},"trend_direction":{"type":"integer","description":"Trend: 1 rising, -1 falling, 0 flat"}}},"description":"Observations ordered by date ascending"},"meta":{"type":"object","description":"Series metadata: source_key (FRED series ID), units, frequency (D/W/M/Q/A), date_from, date_to, fields"}},"description":"Station f(x) response with metadata and pre-computed derived metrics"},"example":{"data":[{"date":"2024-01-01","value":5.33,"mom_pct":0,"yoy_change":0.5,"zscore_12m":1.2,"trend_direction":1}],"meta":{"frequency":"M","source_key":"M2SL"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_owyXId3jLSQsSZP5Kuirj","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns U.S. M2 money supply time series data with derived metrics including MoM/YoY changes, z-scores, trend flags, and rolling averages, going back to 1959.","exampleAgentPrompt":"Pull the U.S. M2 money supply data from January 2018 through today, including year-over-year percent change and the 5-year z-score, in JSON format so I can check whether money supply growth is above its long-run trend.","exampleUseCases":[{"title":"Inflation signal monitoring dashboard","prompt":"Get me the latest U.S. M2 money supply readings for the past 24 months, including month-over-month and year-over-year changes, so I can flag whether rapid monetary expansion is signaling a new inflation risk."},{"title":"Historical monetary policy research","prompt":"I need M2 money supply data from January 2000 to December 2023 with the 5-year z-score and above-trend flag included — I'm studying how money supply behavior correlates with past inflation cycles."},{"title":"Macro regime classification for quant strategy","prompt":"Fetch the most recent 12 months of M2 money supply data with rolling 3-month and 12-month averages and the percentile rank over the trailing 5 years — I want to classify the current monetary regime as expansionary or contractionary for my asset allocation model."}],"resultDescription":"Returns a JSON array of monthly M2 money supply observations, each including the raw value in series units, month-over-month and year-over-year absolute and percent changes, 12-month and 5-year trailing z-scores, a 5-year percentile rank, a binary above-trend flag, and 3-month and 12-month rolling averages. History available from 1959 to present.","failureModes":["Invalid date format returns an error — dates must be YYYY-MM-DD","Requesting future dates beyond the most recent monthly release returns no data or an empty array","Unsupported fmt value (not 'json' or 'toon') may cause a 400 error","Payment failure via x402 protocol results in a 402 Payment Required response","Requesting fields that don't exist in the schema may return null values or be silently ignored"],"whenToPreferThis":"Choose this endpoint when you need U.S. M2 money supply data with pre-computed derived metrics (z-scores, YoY, MoM, trend flags, rolling averages) in a single call rather than fetching raw series and computing derivatives yourself. Prefer it over FRED direct access when you want agent-friendly formatting (toon mode) or need normalized comparison metrics already calculated. Ideal for inflation monitoring, monetary policy analysis, and macro regime detection use cases.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:46:37.128Z","isFirstParty":false,"canonicalSlug":"stationfx-m2-money-supply-863443d8"}