Rates by 402rates

Free cursor-based change notices for Treasury yields, terms, source evidence and availability. Capture every fifteen minutes; 90-day retention. Notices contain field names and state digests. Full before/after records use the existing instrument access limits. No reconstruction before the first baseline.

{
  "type": "object",
  "properties": {
    "cursor": {
      "type": "string",
      "description": "next_cursor from an earlier response; an expired cursor requires a fresh baseline."
    },
    "limit": {
      "type": "number",
      "description": "limit"
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Free arithmetic comparison of a saved measured USD instrument response and caller-supplied US Treasury total-return index levels with identical dates. Simple actual/365; 28-32 days. Input provenance is not verified. Spot rates, unmatched windows, quoted yields and other currencies are not comparable. The spread does not establish fees or causality.

{
  "type": "object",
  "properties": {
    "snapshot": {
      "type": "object",
      "additionalProperties": {},
      "description": "Saved single-instrument response, schema_version 0.5.0, with a measured USD return."
    },
    "benchmark": {
      "type": "object",
      "additionalProperties": {},
      "description": "kind us_treasury_total_return_index, currency USD, start_date/end_date, positive start_value/end_value, HTTPS source_url and retrieved_at date. Caller declarations only."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Free comparison of two supplied 402rates Treasury snapshots: yield, issuer divergence, source identifiers, calculation windows and data availability. Reports numeric threshold crossings without assigning economic significance. No new data access, authentication of snapshots, historical reconstruction or automatic monitoring. Examples are synthetic.

{
  "type": "object",
  "properties": {
    "before": {
      "type": "object",
      "additionalProperties": {},
      "description": "Earlier saved yields, single instrument or complete instrument response; schema_version 0.5.0."
    },
    "after": {
      "type": "object",
      "additionalProperties": {},
      "description": "Later saved response. Input origin is not independently authenticated."
    },
    "threshold_bps": {
      "type": "number",
      "description": "Absolute change in issuer_vs_basis_bps to flag, default 5; zero flags only nonzero changes."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Free capability and MCP tool catalogue for Rates by 402rates. Contains this product and shared service information only.

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Free OpenAPI manifest for Rates by 402rates. Contains this product and shared service information only.

{
  "type": "object",
  "properties": {
    "base_url": {
      "type": "string",
      "format": "uri",
      "description": "absolute origin to render into the manifest's servers block. Defaults to the configured public base URL."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Returns the free frozen-contract state view for one tracked tokenized treasury: identity, Open Treasury Yield Basis result or explicit unavailable reason, issuer-term evidence cells, verified deployments and evidence dates. Three distinct tickers are free per caller in a rolling hour; repeats stay free, and the fourth returns BREADTH_LIMIT with the paid complete-snapshot path. An omitted ticker returns only the known ticker list.

{
  "type": "object",
  "properties": {
    "ticker": {
      "type": "string",
      "maxLength": 32,
      "description": "tracked instrument ticker, case-insensitive. Omit it to receive the complete known ticker list."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Returns free normalized observations for one tracked instrument, one reconstructible recorder source and one inclusive date window. Every point carries value, date, source id, revision and source-time versus read-time dating. Omit source_id to list the instrument's audited sources. The five current-only issuer series return HISTORY_SOURCE_RESERVED with the data-use URL, never an empty gap. Shares the instrument view's three-ticker rolling-hour breadth limit.

{
  "type": "object",
  "properties": {
    "ticker": {
      "type": "string",
      "maxLength": 32,
      "description": "tracked instrument ticker, case-insensitive. Omit it to list tickers and audited history sources."
    },
    "source_id": {
      "type": "string",
      "maxLength": 160,
      "description": "one source id belonging to ticker. Omit it to list that instrument's sources without observations."
    },
    "date_from": {
      "type": "string",
      "maxLength": 10,
      "description": "inclusive first observation date in YYYY-MM-DD form; required with source_id"
    },
    "date_to": {
      "type": "string",
      "maxLength": 10,
      "description": "inclusive last observation date in YYYY-MM-DD form; required with source_id"
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Returns only the single cheapest chain for a USDC transfer right now, its total transaction fee in USD, the scope of that figure and how long it stays valid. Free and deliberately minimal: no per-chain table, no runner-up, no fee components and no source provenance. The paid tool compare_settlement_costs returns the full comparison with every input disclosed.

{
  "type": "object",
  "properties": {
    "chains": {
      "type": "string",
      "description": "comma-separated subset of base, polygon, arbitrum, ethereum, xdc. Defaults to all five."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Measured USDC transfer costs on Base, Polygon, Arbitrum, Ethereum and XDC: simulated gas, current token prices, fresh chain heads and applicable rollup L1 fees. Inputs and block references accompany each figure. Cheapest first; unmeasurable chains are excluded, not estimated. Business/professional use only. Terms: https://402rates.com/data-terms/ Price: 0.01 USDC per call over x402.

{
  "type": "object",
  "properties": {
    "chains": {
      "type": "string",
      "description": "comma-separated subset of base, polygon, arbitrum, ethereum, xdc. Defaults to all five."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Realised 30-day yields for 13 tokenized treasury funds under the Open Treasury Yield Basis. Measured rows use NAV, price or verified passive-holder balances, with observations, sources and dates. Issuer figures and differences appear where available. Quoted and unavailable rows stay explicit; free coverage lists funds and gaps. Business/professional use only. Terms: https://402rates.com/data-terms/ Price: 0.03 USDC per call over x402.

{
  "type": "object",
  "properties": {
    "instruments": {
      "type": "string",
      "description": "comma-separated instrument tickers or ids; omitted means all tracked instruments"
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Complete evidence snapshot for 13 tokenized treasury funds: yield or gap, measured size, subscription/redemption minimums, fees, settlement, access conditions, chain conflicts, quotes, URLs and dates. Same records as the free instrument view. Internal use with attribution included; continuous access, change notices and customer-facing use are separate. Business/professional use only. Terms: https://402rates.com/data-terms/ Price: 5 USDC per call over x402.

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}