Rates by 402rates

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Source-backed treasury data, settlement costs. Free instrument records and history.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "Rates by 402rates": {
      "url": "https://api.402rates.com/mcp/rates",
      "transport": "streamable-http"
    }
  }
}

Measured tools (13)

• read_rwa_access_evidence read-only

  Free source-backed documentation of Treasury distribution and asset-settlement protocols. Distinguishes an announced access path from an identified fund and a protocol from a deployed fund integration. Unknown fund identity, investor access and liquidity remain explicit. No live quote, execution or eligibility determination.

  Parameters:

  • ticker — string — Version 2 only: select retained instrument and access evidence for one ticker.
  • version — string — Optional evidence contract version. Omitted keeps version 1.
  • record_id — string — Optional record identifier. Version 2 returns its available record index when no selection is supplied.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• estimate_payment_costs read-only

  Free exact-decimal calculation from caller-supplied prices, fees and setup costs for a planned number of calls. Separates locked capital and batches; unknown costs stay unknown. Compares complete profiles only within the same currency. No exchange-rate conversion, external fee measurement, payment or verification of supplied inputs.

  Parameters:

  • workload (required) — string — Shared caller-defined workload identifier. One call denotes the same declared unit of delivered work in every profile; equivalence is not verified.
  • calls (required) — integer
  • profiles (required) — array

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• list_rwa_updates read-only

  Free cursor-based Treasury change notices. Instrument scope retains version 1; market and access scopes use version 2 and independent cursors. Source dates and digests remain distinct from retrieval times. Up to 90-day retention subject to source permissions. No paid market values or reconstruction before the first baseline.

  Parameters:

  • limit — number
  • scope — string — instrument retains version 1. market and access select version 2 with independent cursors.
  • cursor — string — next_cursor from an earlier response; an expired cursor requires a fresh baseline.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• compare_rwa_benchmark read-only

  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.

  Parameters:

  • snapshot — object — Saved single-instrument response, schema_version 0.5.0, with a measured USD return.
  • benchmark — object — 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.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• compare_rwa_snapshots read-only

  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.

  Parameters:

  • after — object — Later saved response. Input origin is not independently authenticated.
  • before — object — Earlier saved yields, single instrument or complete instrument response; schema_version 0.5.0.
  • threshold_bps — number — Absolute change in issuer_vs_basis_bps to flag, default 5; zero flags only nonzero changes.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• list_capabilities read-only

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

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• get_manifest read-only

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

  Parameters:

  • base_url — string — absolute origin to render into the manifest's servers block. Defaults to the configured public base URL.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• get_rwa_instrument read-only

  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.

  Parameters:

  • ticker — string — tracked instrument ticker, case-insensitive. Omit it to receive the complete known ticker list.
  • version — string — 1 retains the original record. 2 adds separately sourced access evidence.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• get_rwa_history read-only

  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.

  Parameters:

  • ticker — string — tracked instrument ticker, case-insensitive. Omit it to list tickers and audited history sources.
  • date_to — string — inclusive last observation date in YYYY-MM-DD form; required with source_id
  • date_from — string — inclusive first observation date in YYYY-MM-DD form; required with source_id
  • source_id — string — one source id belonging to ticker. Omit it to list that instrument's sources without observations.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• cheapest_settlement_chain read-only

  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.

  Parameters:

  • chains — string — comma-separated subset of base, polygon, arbitrum, ethereum, xdc. Defaults to all five.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• compare_settlement_costs read-only

  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.

  Parameters:

  • chains — string — comma-separated subset of base, polygon, arbitrum, ethereum, xdc. Defaults to all five.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• get_rwa_yields read-only

  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.

  Parameters:

  • instruments — string — comma-separated instrument tickers or ids; omitted means all tracked instruments

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• get_rwa_instruments read-only

  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.

  Parameters:

  • version — string — 1 retains the original snapshot. 2 adds access evidence to each instrument.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

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Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.