# Rates by 402rates

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

- name: com.402rates/rates
- version: 0.2.0
- connection class: R0 (autonomous)
- trust: 80/100 flags: no-repository
- quality: 74/100 (needs work)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.402rates%2Frates
- tools: https://api.protogrid.dev/v1/servers/com.402rates%2Frates/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "rates": {
      "type": "http",
      "url": "https://api.402rates.com/mcp/rates"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 85
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% ~updated-37d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 74/100 (needs work)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 12 of 12 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: list_rwa_updates (destructiveHint, idempotentHint); compare_rwa_benchmark (destructiveHint, idempotentHint); get_rwa_history (destructiveHint, idempotentHint); …
- pass `tools.token_cost`: about 3,119 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 50 (weight 15)

- pass `stability.changes`: 3 tool changes in 30 days
- fail `stability.rug_pull`: 1 tools kept their name but changed most of their description in 30 days; review before trusting them

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 12, about 3,119 tokens to load them all
- tool set hash: 015f71c413b3fa2e5e059b42b1380e7f
- tools last changed: 2026-10-03T05:28:33.856Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.402rates/rates.svg)](https://protogrid.dev/servers/com.402rates/rates)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-03 `list_rwa_updates` changed (inputSchema)
- 2026-10-03 `estimate_payment_costs` added
  - 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.
- 2026-09-30 `list_rwa_updates` changed (description, inputSchema) **meaning changed**
  - before: 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.
  - after: Free cursor-based Treasury change notices. Default instrument scope retains version 1; opt-in market scope uses version 2 and separate cursors. Fifteen-minute capture; up to 90-day retention subject to source permissions. Field names and digests, no paid market values. No reconstruction before the first baseline.

Full history: https://api.protogrid.dev/v1/servers/com.402rates%2Frates/changes

## Remotes

- https://api.402rates.com/mcp/rates (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (12)

- `cheapest_settlement_chain`: 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.
- `compare_rwa_benchmark`: 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.
- `compare_rwa_snapshots`: 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.
- `compare_settlement_costs`: 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.
- `estimate_payment_costs`: 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.
- `get_manifest`: Free OpenAPI manifest for Rates by 402rates. Contains this product and shared service information only.
- `get_rwa_history`: 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.
- `get_rwa_instrument`: 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.
- `get_rwa_instruments`: 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.
- `get_rwa_yields`: 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.
- `list_capabilities`: Free capability and MCP tool catalogue for Rates by 402rates. Contains this product and shared service information only.
- `list_rwa_updates`: Free cursor-based Treasury change notices. Default instrument scope retains version 1; opt-in market scope uses version 2 and separate cursors. Fifteen-minute capture; up to 90-day retention subject to source permissions. Field names and digests, no paid market values. No reconstruction before the first baseline.