{ "openapi": "3.1.0", "info": { "title": "snapdata", "version": "1.0", "summary": "Free, open, daily Indian and world rates and indices.", "description": "One unauthenticated GET returns today's numbers from a CDN edge.\nNo keys, no rate limits, no accounts.\n\nEvery number carries its provenance: which source, which date it\ndescribes, whether it is final, and whether it was carried forward\nfrom a closed market. Non-trading days are emitted as explicit rows\nwith `is_trading_day: false` and `status: \"missing\"` — never as a\nrepeated value, and never as a silent absence.\n\nDated URLs older than 48 hours are served `immutable` and are a\npermanent contract: a backtest run in 2029 gets the same bytes.", "license": { "name": "CC-BY-4.0", "url": "https://creativecommons.org/licenses/by/4.0/" } }, "servers": [ { "url": "https://snapdata.dev/api" } ], "tags": [ { "name": "data", "description": "Dataset endpoints." }, { "name": "aggregate", "description": "Cross-dataset endpoints." }, { "name": "metadata", "description": "Health, coverage, calendars, revisions." } ], "paths": { "/v1/{dataset}/{scope}/{selector}.{format}": { "get": { "tags": [ "data" ], "operationId": "getDataset", "summary": "One dataset, one scope, one selector.", "description": "`selector` is one of:\n\n- `latest` — the most recent date carrying real values. Not\n necessarily today: before a market closes, today's row exists\n but is legitimately empty, and you want yesterday's close.\n- `YYYY-MM-DD` — a single calendar date in the market's own\n calendar. Immutable once 48h past that market's close.\n- `series/30d` — a rolling window.", "parameters": [ { "name": "dataset", "in": "path", "required": true, "schema": { "type": "string", "enum": [ "gold", "silver", "equity-indices", "fx", "crude", "rates" ] } }, { "name": "scope", "in": "path", "required": true, "schema": { "type": "string", "enum": [ "in", "world" ] }, "description": "The DENOMINATION of the values, not the consumer's nationality." }, { "name": "selector", "in": "path", "required": true, "schema": { "type": "string", "pattern": "^(latest|\\d{4}-\\d{2}-\\d{2}|series/(7d|30d|90d|1y|\\d{4}|all))$" }, "description": "latest | YYYY-MM-DD | series/{window}" }, { "name": "format", "in": "path", "required": true, "schema": { "type": "string", "enum": [ "json", "csv", "txt" ] } } ], "responses": { "200": { "description": "The requested slice.", "headers": { "ETag": { "description": "Weak validator. Send it back as If-None-Match to get a 304.", "schema": { "type": "string" } }, "Cache-Control": { "description": "Dated files older than 48h are `immutable`; inside the settling window they are short-lived; rolling selectors carry stale-if-error.", "schema": { "type": "string" } }, "X-Snapdata-Cache-Class": { "description": "immutable | settling | rolling | meta", "schema": { "type": "string", "enum": [ "immutable", "settling", "rolling", "meta" ] } } }, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Envelope" } }, "text/csv": { "schema": { "type": "string" } }, "text/plain": { "schema": { "type": "string" } } } }, "304": { "description": "Your If-None-Match matched. No body." }, "404": { "description": "No such dataset, scope, or date.", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } } }, "/v1/all/{selector}.{format}": { "get": { "tags": [ "aggregate" ], "operationId": "getAll", "summary": "Every dataset in one file.", "description": "Mixes calendars deliberately. An Indian close that has happened sits beside a US close that has not; the US rows stay `missing` until their close rather than being force-aligned. The file settles behind its slowest constituent.", "parameters": [ { "name": "selector", "in": "path", "required": true, "schema": { "type": "string", "pattern": "^(latest|\\d{4}-\\d{2}-\\d{2})$" } }, { "name": "format", "in": "path", "required": true, "schema": { "type": "string", "enum": [ "json", "csv", "txt" ] } } ], "responses": { "200": { "description": "Every dataset.", "headers": { "ETag": { "description": "Weak validator. Send it back as If-None-Match to get a 304.", "schema": { "type": "string" } }, "Cache-Control": { "description": "Dated files older than 48h are `immutable`; inside the settling window they are short-lived; rolling selectors carry stale-if-error.", "schema": { "type": "string" } }, "X-Snapdata-Cache-Class": { "description": "immutable | settling | rolling | meta", "schema": { "type": "string", "enum": [ "immutable", "settling", "rolling", "meta" ] } } }, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Envelope" } }, "text/csv": { "schema": { "type": "string" } }, "text/plain": { "schema": { "type": "string" } } } }, "304": { "description": "Your If-None-Match matched. No body." }, "404": { "description": "No such selector.", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } } }, "/v1/all/{scope}/{selector}.{format}": { "get": { "tags": [ "aggregate" ], "operationId": "getAllByScope", "summary": "Every dataset for one scope.", "parameters": [ { "name": "scope", "in": "path", "required": true, "schema": { "type": "string", "enum": [ "in", "world" ] } }, { "name": "selector", "in": "path", "required": true, "schema": { "type": "string", "pattern": "^(latest|\\d{4}-\\d{2}-\\d{2})$" } }, { "name": "format", "in": "path", "required": true, "schema": { "type": "string", "enum": [ "json", "csv", "txt" ] } } ], "responses": { "200": { "description": "Every dataset in that scope.", "headers": { "ETag": { "description": "Weak validator. Send it back as If-None-Match to get a 304.", "schema": { "type": "string" } }, "Cache-Control": { "description": "Dated files older than 48h are `immutable`; inside the settling window they are short-lived; rolling selectors carry stale-if-error.", "schema": { "type": "string" } }, "X-Snapdata-Cache-Class": { "description": "immutable | settling | rolling | meta", "schema": { "type": "string", "enum": [ "immutable", "settling", "rolling", "meta" ] } } }, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Envelope" } }, "text/csv": { "schema": { "type": "string" } }, "text/plain": { "schema": { "type": "string" } } } }, "304": { "description": "Your If-None-Match matched. No body." }, "404": { "description": "No such scope or selector.", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } } }, "/v1/meta.json": { "get": { "tags": [ "metadata" ], "operationId": "getMeta", "summary": "Per-source staleness and last run.", "description": "Never reports healthy while serving stale. The edge will keep serving `latest.json` for a week under `stale-if-error` if an upstream disappears; this file is where you find out that happened.", "responses": { "200": { "description": "Source health.", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Meta" } } } } } } }, "/v1/coverage.json": { "get": { "tags": [ "metadata" ], "operationId": "getCoverage", "summary": "Per-series earliest date, resolution, gaps and licence.", "description": "Backfill depth is licence-bound, not effort-bound. There is no uniform start date, and each entry carries the reason its coverage stops where it does.", "responses": { "200": { "description": "Coverage table." } } } }, "/v1/calendar/{calendar}/{year}.json": { "get": { "tags": [ "metadata" ], "operationId": "getCalendar", "summary": "Trading days and holidays for one calendar and year.", "parameters": [ { "name": "calendar", "in": "path", "required": true, "schema": { "type": "string", "enum": [ "IN-EQUITY", "IN-BULLION", "US-EQUITY", "GLOBAL-FX" ] } }, { "name": "year", "in": "path", "required": true, "schema": { "type": "integer" } } ], "responses": { "200": { "description": "Calendar." }, "404": { "description": "No table loaded for that calendar and year.", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/Error" } } } } } } }, "/v1/revisions.json": { "get": { "tags": [ "metadata" ], "operationId": "getRevisions", "summary": "Corrections made after a file's settling window closed.", "responses": { "200": { "description": "Revision log." } } } } }, "components": { "schemas": { "Envelope": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "schema_version": { "type": "string", "const": "1.0" }, "generated_at": { "type": "string", "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d{1,3})?Z$", "description": "RFC 3339 timestamp, UTC, Z-suffixed." }, "dataset": { "anyOf": [ { "type": "string", "enum": [ "gold", "silver", "equity-indices", "fx", "crude", "rates" ], "description": "Dataset identifier." }, { "type": "string", "const": "all" } ] }, "scope": { "anyOf": [ { "type": "string", "enum": [ "in", "world" ], "description": "Denomination and market context." }, { "type": "string", "const": "all" } ] }, "resolution": { "type": "string", "enum": [ "daily", "monthly" ] }, "calendar": { "anyOf": [ { "type": "string", "enum": [ "IN-EQUITY", "IN-BULLION", "US-EQUITY", "GLOBAL-FX" ], "description": "Trading calendar identifier." }, { "type": 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"minLength": 1 }, "url": { "type": "string", "minLength": 1 }, "licence": { "type": "string", "minLength": 1 }, "retrieved_at": { "type": "string", "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d{1,3})?Z$", "description": "RFC 3339 timestamp, UTC, Z-suffixed." } }, "required": [ "id", "name", "url", "licence", "retrieved_at" ], "additionalProperties": false } }, "observations": { "type": "array", "items": { "type": "object", "properties": { "date": { "type": "string", "pattern": "^\\d{4}-\\d{2}-\\d{2}$", "description": "Calendar date in the market's local calendar, YYYY-MM-DD." }, "instrument": { "type": "string", "minLength": 1 }, "instrument_id": { "type": "string", "pattern": "^[A-Z0-9]+(?:\\.[A-Z0-9]+)?\\.[A-Z]{3}\\.(?:G|KG|OZT|BBL|RATE|IDX|PCT)$", "description": "Globally unique, self-describing instrument identifier." }, "value": { "anyOf": [ { "type": "number" }, { "type": "null" } ] }, "close": { "anyOf": [ { "type": "number" }, { "type": "null" } ] }, 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"additionalProperties": false }, "Observation": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "date": { "type": "string", "pattern": "^\\d{4}-\\d{2}-\\d{2}$", "description": "Calendar date in the market's local calendar, YYYY-MM-DD." }, "instrument": { "type": "string", "minLength": 1 }, "instrument_id": { "type": "string", "pattern": "^[A-Z0-9]+(?:\\.[A-Z0-9]+)?\\.[A-Z]{3}\\.(?:G|KG|OZT|BBL|RATE|IDX|PCT)$", "description": "Globally unique, self-describing instrument identifier." }, "value": { "anyOf": [ { "type": "number" }, { "type": "null" } ] }, "close": { "anyOf": [ { "type": "number" }, { "type": "null" } ] }, "prev_close": { "anyOf": [ { "type": "number" }, { "type": "null" } ] }, "change_pct": { "anyOf": [ { "type": "number" }, { "type": "null" } ] }, "status": { "type": "string", "enum": [ "final", "provisional", "estimated", "missing", "not_backfilled" ], "description": "Confidence and lifecycle of the value." }, "is_trading_day": { "type": "boolean" }, "filled_from": { "anyOf": [ { "type": "string", "pattern": "^\\d{4}-\\d{2}-\\d{2}$", "description": "Calendar date in the market's local calendar, YYYY-MM-DD." }, { "type": "null" } ] }, "source": { "type": "string", "minLength": 1 }, "revision": { "type": "integer", "minimum": 0, "maximum": 9007199254740991 } }, "required": [ "date", "instrument", "instrument_id", "value", "status", "is_trading_day", "filled_from", "source", "revision" ], "additionalProperties": false }, "Meta": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "schema_version": { "type": "string", "const": "1.0" }, "generated_at": { "type": "string", "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d{1,3})?Z$", "description": "RFC 3339 timestamp, UTC, Z-suffixed." }, "status": { "type": "string", "enum": [ "ok", "degraded", "down" ] }, "commit_sha": { "anyOf": [ { "type": "string" }, { "type": "null" } ] }, "last_run": { "type": "object", "properties": { "id": { "anyOf": [ { "type": "string" }, { "type": "null" } ] }, "at": { "anyOf": [ { "type": "string", "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d{1,3})?Z$", "description": "RFC 3339 timestamp, UTC, Z-suffixed." }, { "type": "null" } ] }, "trigger": { "anyOf": [ { "type": "string", "enum": [ "scheduled", "worker_cron", "actions", "manual" ] }, { "type": "null" } ] }, "outcome": { "anyOf": [ { "type": "string", "enum": [ "success", "partial", "failed" ] }, { "type": "null" } ] } }, "required": [ "id", "at", "trigger", "outcome" ], "additionalProperties": false }, "duty_table_version": { "type": "string" }, "sources": { "type": "array", "items": { "type": "object", "properties": { "id": { "type": "string" }, "name": { "type": "string" }, "latest_date": { "anyOf": [ { "type": "string", "pattern": "^\\d{4}-\\d{2}-\\d{2}$", "description": "Calendar date in the market's local calendar, YYYY-MM-DD." }, { "type": "null" } ] }, 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"last_success_at", "last_attempt_at", "staleness_hours", "staleness_slo_hours", "stale", "consecutive_failures", "last_error_class" ], "additionalProperties": false } }, "stale_datasets": { "type": "array", "items": { "type": "string" } } }, "required": [ "schema_version", "generated_at", "status", "commit_sha", "last_run", "duty_table_version", "sources", "stale_datasets" ], "additionalProperties": false }, "Error": { "type": "object", "required": [ "error", "message" ], "properties": { "error": { "type": "string" }, "message": { "type": "string" }, "hint": { "type": "string" } } } }, "x-instruments": [ { "instrument_id": "XAU.24K.INR.G", "label": "Gold 24K, INR per gram", "dataset": "gold", "scope": "in", "calendar": "IN-BULLION", "unit": { "quantity": "gram", "currency": "INR" }, "live": true }, { "instrument_id": "XAU.22K.INR.G", "label": "Gold 22K, INR per gram", "dataset": "gold", "scope": "in", "calendar": "IN-BULLION", "unit": { "quantity": "gram", "currency": "INR" }, "live": true }, { "instrument_id": "XAU.18K.INR.G", "label": "Gold 18K, INR per gram", "dataset": "gold", "scope": "in", "calendar": "IN-BULLION", "unit": { "quantity": "gram", "currency": "INR" }, "live": true }, { "instrument_id": "XAU.USD.OZT", "label": "Gold, USD per troy ounce", "dataset": "gold", "scope": "world", "calendar": "GLOBAL-FX", "unit": { "quantity": "troy_ounce", "currency": "USD" }, "live": true }, { "instrument_id": "XAG.INR.KG", "label": "Silver, INR per kilogram", "dataset": "silver", "scope": "in", "calendar": "IN-BULLION", "unit": { "quantity": "kilogram", "currency": "INR" }, "live": true }, { "instrument_id": "XAG.USD.OZT", "label": "Silver, USD per troy ounce", "dataset": "silver", "scope": "world", "calendar": "GLOBAL-FX", "unit": { "quantity": "troy_ounce", "currency": "USD" }, "live": true }, { "instrument_id": "NIFTY50.INR.IDX", "label": "Nifty 50", "dataset": "equity-indices", "scope": "in", "calendar": "IN-EQUITY", "unit": { "quantity": "index_point", "currency": "INR" }, "live": true }, { "instrument_id": "NIFTYBANK.INR.IDX", "label": "Nifty Bank", "dataset": "equity-indices", "scope": "in", "calendar": "IN-EQUITY", "unit": { "quantity": "index_point", "currency": "INR" }, "live": true }, { "instrument_id": "SENSEX.INR.IDX", "label": "BSE Sensex", "dataset": "equity-indices", "scope": "in", "calendar": "IN-EQUITY", "unit": { "quantity": "index_point", "currency": "INR" }, "live": true }, { "instrument_id": "SPX.USD.IDX", "label": "S&P 500", "dataset": "equity-indices", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "index_point", "currency": "USD" }, "live": false }, { "instrument_id": "UKX.GBP.IDX", "label": "FTSE 100", "dataset": "equity-indices", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "index_point", "currency": "GBP" }, "live": false }, { "instrument_id": "USD.INR.RATE", "label": "US dollar / Indian rupee", "dataset": "fx", "scope": "world", "calendar": "GLOBAL-FX", "unit": { "quantity": "ratio", "currency": "INR" }, "live": true }, { "instrument_id": "EUR.USD.RATE", "label": "Euro / US dollar", "dataset": "fx", "scope": "world", "calendar": "GLOBAL-FX", "unit": { "quantity": "ratio", "currency": "USD" }, "live": true }, { "instrument_id": "GBP.USD.RATE", "label": "Pound sterling / US dollar", "dataset": "fx", "scope": "world", "calendar": "GLOBAL-FX", "unit": { "quantity": "ratio", "currency": "USD" }, "live": true }, { "instrument_id": "USD.JPY.RATE", "label": "US dollar / Japanese yen", "dataset": "fx", "scope": "world", "calendar": "GLOBAL-FX", "unit": { "quantity": "ratio", "currency": "JPY" }, "live": true }, { "instrument_id": "USD.AED.RATE", "label": "US dollar / UAE dirham", "dataset": "fx", "scope": "world", "calendar": "GLOBAL-FX", "unit": { "quantity": "ratio", "currency": "AED" }, "live": true }, { "instrument_id": "USD.SGD.RATE", "label": "US dollar / Singapore dollar", "dataset": "fx", "scope": "world", "calendar": "GLOBAL-FX", "unit": { "quantity": "ratio", "currency": "SGD" }, "live": true }, { "instrument_id": "INBASKET.USD.BBL", "label": "Indian Crude Basket", "dataset": "crude", "scope": "in", "calendar": "IN-EQUITY", "unit": { "quantity": "barrel", "currency": "USD" }, "live": true }, { "instrument_id": "BRENT.USD.BBL", "label": "Brent crude spot", "dataset": "crude", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "barrel", "currency": "USD" }, "live": true }, { "instrument_id": "WTI.USD.BBL", "label": "WTI crude spot (Cushing)", "dataset": "crude", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "barrel", "currency": "USD" }, "live": true }, { "instrument_id": "UST.1M.USD.PCT", "label": "US Treasury 1-month par yield", "dataset": "rates", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "percent", "currency": "USD" }, "live": true }, { "instrument_id": "UST.2M.USD.PCT", "label": "US Treasury 2-month par yield", "dataset": "rates", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "percent", "currency": "USD" }, "live": true }, { "instrument_id": "UST.3M.USD.PCT", "label": "US Treasury 3-month par yield", "dataset": "rates", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "percent", "currency": "USD" }, "live": true }, { "instrument_id": "UST.6M.USD.PCT", "label": "US Treasury 6-month par yield", "dataset": "rates", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "percent", "currency": "USD" }, "live": true }, { "instrument_id": "UST.1Y.USD.PCT", "label": "US Treasury 1-year par yield", "dataset": "rates", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "percent", "currency": "USD" }, "live": true }, { "instrument_id": "UST.2Y.USD.PCT", "label": "US Treasury 2-year par yield", "dataset": "rates", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "percent", "currency": "USD" }, "live": true }, { "instrument_id": "UST.3Y.USD.PCT", "label": "US Treasury 3-year par yield", "dataset": "rates", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "percent", "currency": "USD" }, "live": true }, { "instrument_id": "UST.5Y.USD.PCT", "label": "US Treasury 5-year par yield", "dataset": "rates", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "percent", "currency": "USD" }, "live": true }, { "instrument_id": "UST.7Y.USD.PCT", "label": "US Treasury 7-year par yield", "dataset": "rates", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "percent", "currency": "USD" }, "live": true }, { "instrument_id": "UST.10Y.USD.PCT", "label": "US Treasury 10-year par yield", "dataset": "rates", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "percent", "currency": "USD" }, "live": true }, { "instrument_id": "UST.20Y.USD.PCT", "label": "US Treasury 20-year par yield", "dataset": "rates", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "percent", "currency": "USD" }, "live": true }, { "instrument_id": "UST.30Y.USD.PCT", "label": "US Treasury 30-year par yield", "dataset": "rates", "scope": "world", "calendar": "US-EQUITY", "unit": { "quantity": "percent", "currency": "USD" }, "live": true } ], "x-statuses": [ "final", "provisional", "estimated", "missing", "not_backfilled" ] } }