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Rates by 402rates

connects

api.402rates.com

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

https://api.402rates.com/mcp/ratesWebsiteNo authMCP 2025-11-25v0.6.0last checked 27 Oct 2026spoke MCP on 100% of 86 checks (30 days)initialize in 81 ms

Last checked 27 Oct 2026

✓Answered the MCP handshake (MCP 2025-11-25)
✓Auth detected: No auth
✓Lists 13 tools
✓No blockers or warnings
✓Spoke MCP on 86 of 86 checks (30 days)

Will my client connect?

Decided from what the probe found at the endpoint, and from what each client's own documentation says it can complete. Every row carries the day that documentation was read.

✓Claude CodeConnects

The endpoint answers an anonymous handshake, so no credential is needed.

claude mcp add --transport http rates-by-402rates https://api.402rates.com/mcp/rates

Claude Code docs · read on 2026-08-30

✓Claude (claude.ai & Desktop)Connects

The endpoint answers an anonymous handshake, so no credential is needed.

Settings → Connectors → Add custom connector, then paste https://api.402rates.com/mcp/rates.

Claude (claude.ai & Desktop) docs · read on 2026-08-30

✓ChatGPTConnects

The endpoint answers an anonymous handshake, so no credential is needed.

Settings → Apps → Advanced settings → Developer mode, then create a connector pointing at https://api.402rates.com/mcp/rates.

ChatGPT docs · read on 2026-08-30

✓CursorConnects

The endpoint answers an anonymous handshake, so no credential is needed.

{
  "mcpServers": {
    "rates-by-402rates": {
      "url": "https://api.402rates.com/mcp/rates"
    }
  }
}

Cursor docs · read on 2026-08-30

✓VS Code (Copilot)Connects

The endpoint answers an anonymous handshake, so no credential is needed.

{
  "servers": {
    "rates-by-402rates": {
      "type": "http",
      "url": "https://api.402rates.com/mcp/rates"
    }
  }
}

VS Code (Copilot) docs · read on 2026-08-30

How to authenticate

Checked against the endpoint by our probe on 27 Oct 2026. These are the capabilities the server advertises, not a prediction about any particular client.

Scheme	No auth
Protected-resource metadata	✕Not found Without it a client has to guess where the authorization server lives.
Anonymous access	Handshake succeeds; 13 tools listable

What the probe found

No server card

Neither the reserved <endpoint>/server-card location nor the domain's /.well-known/ai-catalog.json describes this endpoint (SEP-2127), so a client that discovers servers by domain will not find it.

Tools

cheapest_settlement_chaincompare_rwa_benchmarkcompare_rwa_snapshotscompare_settlement_costsestimate_payment_costsget_manifestget_rwa_historyget_rwa_instrumentget_rwa_instrumentsget_rwa_yieldslist_capabilitieslist_rwa_updatesread_rwa_access_evidence

Contract history

23 Oct 2026v0.6.01 breaking3 compatibleinstructions rewritten

Breaking: get_rwa_instruments

Instructions rewritten: list_rwa_updates. The description an agent follows changed; the callable contract may not have.

3 Oct 2026v0.4.01 compatible1 cosmetic

30 Sep 2026v0.3.01 compatibleinstructions rewritten

Instructions rewritten: list_rwa_updates. The description an agent follows changed; the callable contract may not have.

13 Sep 2026v0.2.02 compatible

11 Sep 2026v0.1.0first recorded contract

Watch this server

Save its public contract as a baseline and manage breaking-change email alerts.

Route it through the gateway

Put this endpoint behind one find_tools / call_tool pair with the rest of your servers. Part of Pro.

Add to my gateway

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Status badge

Status for a README, from the last probe — cached an hour, so up to seven hours behind the endpoint. Links back to this page.

[![MCP status](https://mcpi.app/servers/rates-by-402rates/badge.svg)](https://mcpi.app/servers/rates-by-402rates)