Benchmark Rate API GET

Benchmark Rate is a tool for retrieving current risk-free reference rates that replaced LIBOR. It returns rates for SOFR (US), SONIA (UK), ESTR (EU), TONA (Japan), and SARON (Switzerland).

Try it — live request, no key required

Request

GETapi.apiverve.com/v1/benchmarkrate

Verification

Format

No key required to try it. Get a key to use it in your app.

200 OK

{
  "status": "ok",
  "error": null,
  "data": {
    // Benchmark Rate response payload
  }
}

About the Benchmark Rate API

Benchmark Rate provides the current values for the key risk-free reference rates used in global financial markets. These rates replaced LIBOR and are used for derivatives, loans, mortgages, and other financial contracts. Data is refreshed daily from FRED.

What people use it for

Derivatives Pricing: Use the Benchmark Rate API to get current risk-free rates for pricing interest rate derivatives and swaps
Loan Calculations: Calculate floating rate loan payments using current benchmark rates from the Benchmark Rate API
Financial Modeling: Incorporate accurate benchmark rates into financial models and valuations
Market Monitoring: Track global benchmark rates to monitor monetary policy transmission across major economies

Ways to call it

One endpoint, many ways in — REST with JSON, XML, YAML and CSV, plus GraphQL and an MCP interface for AI agents.

JSON: Default REST response
XML: Markup format
YAML: Human-readable
CSV: Tabular export
GraphQL: Query language
MCP: For AI agents

View all integrations →

Other ways to use Benchmark Rate

Same data, same APIVerve account, same credit balance — one key works on all of them.

Give it to an AI agentConnect over MCP and your agent calls it as a native tool — Claude, Cursor, ChatGPT.on VerveKit Google Sheets or ExcelA =VERVE() formula fills a column — no script, no export, recalculates in place.on VerveSheets Ground an agent on itA cited, machine-checkable fact your model can't produce on its own.on VerveContext

Questions.

Common questions about the Benchmark Rate API.

Read the docs →

What does the Benchmark Rate API do?

Benchmark Rate is a tool for retrieving current risk-free reference rates that replaced LIBOR. It returns rates for SOFR (US), SONIA (UK), ESTR (EU), TONA (Japan), and SARON (Switzerland).

How do I authenticate Benchmark Rate API requests?

Pass your API key in the x-api-key header over HTTPS. One key works across all 300+ APIVerve APIs — there are no per-endpoint credentials.

How much does the Benchmark Rate API cost?

Each call spends 2 credits from your shared pool. The free tier includes 200 credits every month, and paid plans add more headroom.

How fast is the Benchmark Rate API?

Response time depends on the endpoint — the p50 through p99 latency for this API is published on this page. Requests are served over HTTPS through a global edge network.

What response formats does the Benchmark Rate API support?

JSON by default, plus XML and YAML via the format parameter. GraphQL and an MCP interface for AI agents are available across the catalog.

What HTTP method does the Benchmark Rate API use?

GET over HTTPS, following standard REST conventions with a consistent { status, error, data } response envelope.

Request parameters — GET /v1/benchmarkrate

Sent in the query string. Premium parameters are accepted on every plan but only take effect on plans that include them. Anything not listed here is dropped rather than passed through.

Required

Parameter	Type	Example	Description
`rate`Required	string	`SOFR`	The benchmark rate to retrieve `SOFRSONIAESTRTONASARON`

Example request

1
2

curl "https://api.apiverve.com/v1/benchmarkrate?rate=SOFR" \
  -H "x-api-key: YOUR_API_KEY"

Authentication

Send your key in the x-api-key header. That is the only auth step — no token exchange, and no per-endpoint scope to configure.

Header	When	Value
`x-api-key`Required	Every request	Your API key. Header names are case-insensitive, so `X-API-Key` is the same header.
`Authorization`Alternate	Instead of the above	`Bearer <key>` — for clients that only expose bearer auth. Resolves to the same account and the same billing.

401 is the only auth verdict

A 401 means the key is missing, invalid or expired. A 403 means the key is valid but not permitted here — blocked by a key restriction or an IP allow-list. Running out of credits is a 429.

Response — GET /v1/benchmarkrate

Every APIVerve endpoint returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape.

Sample response

{
  "status": "ok",
  "error": null,
  "data": {
    "rate": "SOFR",
    "name": "Secured Overnight Financing Rate",
    "currency": "USD",
    "region": "United States",
    "administrator": "Federal Reserve Bank of New York",
    "value": 4.32,
    "date": "2026-02-04",
    "lastUpdated": "2026-02-05T05:00:00.000Z",
    "change1d": -0.01,
    "changeDirection": "down",
    "previousValue": 4.33,
    "previousDate": "2026-02-03"
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Field	Type	Example	Description
`rate`	string	`"SOFR"`	Benchmark rate code (SOFR, SONIA, ESTR, TONA, SARON)
`name`	string	`"Secured Overnight Financing Rate"`	Full name of the benchmark rate
`currency`	string	`"USD"`	Currency denomination of the benchmark rate
`region`	string	`"United States"`	Geographic region where the rate applies
`administrator`Premium	string	`"Federal Reserve Bank of New York"`	Institution or entity administering the benchmark rate
`value`	number	`4.32`	Current benchmark rate percentage value
`date`	string	`"2026-02-04"`	Date of the benchmark rate value (YYYY-MM-DD format)
`lastUpdated`Premium	string	`"2026-02-05T05:00:00.000Z"`	Last update timestamp in ISO 8601 format
`change1d`Premium	number	`-0.01`	Rate change from previous day
`changeDirection`	string	`"down"`	Direction of daily change: up, down, or unchanged
`previousValue`Premium	number	`4.33`	Previous day's rate value
`previousDate`Premium	string	`"2026-02-03"`	Previous data date (YYYY-MM-DD format)

Response headers

Every response carries your balance, so your own code always knows where it stands without polling anything. All four are exposed to browsers through CORS.

Header	What it carries
`x-api-remaining-credits`	Credits left in the current cycle
`x-api-credits-used`	Credits spent in the current cycle
`x-api-max-credits`	The allowance for the cycle
`x-api-version`	Version of the endpoint that answered

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change.

Status	Meaning	What to do
`400`	Input was rejected	Read `error`; it names the parameter that has to change.
`401`	Key missing or invalid	Check the header name and the key value.
`403`	Key valid, but not permitted here	A key restriction or an IP allow-list — never a bad key.
`429`	Rate limited, or out of credits	Read `error` to tell them apart, then back off or top up.

What a call costs — 2 credits per call

Credits are shared across every APIVerve API — one balance, one key, one bill. Failed requests never count against it, so a rejected input costs nothing.

Plan	Per month	Credits	Benchmark Rate calls	Per 1,000 calls
Free	Free	200	100	Free
Starter	$29.99	200,000	100,000	$0.30
Pro	$99.99	1,000,000	500,000	$0.20
Mega	$299.99	4,000,000	2,000,000	$0.15

Calls are what the credits buy at this API's rate — spend them here, on any of the other APIs, or across both. Nothing is reserved per endpoint.

Compare all pricing tiers →

Call it from cURL — GET /v1/benchmarkrate

No SDK to install — this is a plain HTTPS call to /v1/benchmarkrate with your key in the x-api-key header. Swap in a real key and it runs as-is.

cURL

1
2

curl "https://api.apiverve.com/v1/benchmarkrate" \
  -H "x-api-key: YOUR_API_KEY"

Resources

GitHubapiverve/benchmarkrate-apiSource, issues and the examples this page is built from.ReferenceBenchmark Rate API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

@apiverve/benchmarkratenpm apiverve-benchmarkratePyPI APIVerve.API.BenchmarkRateNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Node.js — GET /v1/benchmarkrate

Install the Node.js SDK, then call the Benchmark Rate API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.

Install — npm

npm install @apiverve/benchmarkrate

Node.js

const res = await fetch("https://api.apiverve.com/v1/benchmarkrate", {
  headers: { "x-api-key": "YOUR_API_KEY" },
});
const { data } = await res.json();
console.log(data);

Resources

npm@apiverve/benchmarkrateThe published Node.js client, versioned and signed.GitHubapiverve/benchmarkrate-apiSource, issues and the examples this page is built from.ReferenceBenchmark Rate API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

apiverve-benchmarkratePyPI APIVerve.API.BenchmarkRateNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Python — GET /v1/benchmarkrate

Install the Python SDK, then call the Benchmark Rate API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.

Install — PyPI

pip install apiverve-benchmarkrate

Python

import requests

res = requests.get(
    "https://api.apiverve.com/v1/benchmarkrate",
    headers={"x-api-key": "YOUR_API_KEY"},
)
print(res.json()["data"])

Resources

PyPIapiverve-benchmarkrateThe published Python client, versioned and signed.GitHubapiverve/benchmarkrate-apiSource, issues and the examples this page is built from.ReferenceBenchmark Rate API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

@apiverve/benchmarkratenpm APIVerve.API.BenchmarkRateNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from C# / .NET — GET /v1/benchmarkrate

Install the C# / .NET SDK, then call the Benchmark Rate API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.

Install — NuGet

dotnet add package APIVerve.API.BenchmarkRate

C# / .NET

using var client = new HttpClient();
client.DefaultRequestHeaders.Add("x-api-key", "YOUR_API_KEY");

var json = await client.GetStringAsync("https://api.apiverve.com/v1/benchmarkrate");
Console.WriteLine(json);

Resources

NuGetAPIVerve.API.BenchmarkRateThe published C# / .NET client, versioned and signed.GitHubapiverve/benchmarkrate-apiSource, issues and the examples this page is built from.ReferenceBenchmark Rate API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

@apiverve/benchmarkratenpm apiverve-benchmarkratePyPI

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Go — GET /v1/benchmarkrate

No SDK to install — this is a plain HTTPS call to /v1/benchmarkrate with your key in the x-api-key header. Swap in a real key and it runs as-is.

req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/benchmarkrate", nil)
req.Header.Set("x-api-key", "YOUR_API_KEY")

res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

Resources

Also published for

@apiverve/benchmarkratenpm apiverve-benchmarkratePyPI APIVerve.API.BenchmarkRateNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from PHP — GET /v1/benchmarkrate

No SDK to install — this is a plain HTTPS call to /v1/benchmarkrate with your key in the x-api-key header. Swap in a real key and it runs as-is.

PHP

$ch = curl_init("https://api.apiverve.com/v1/benchmarkrate");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-api-key: YOUR_API_KEY"]);

$response = curl_exec($ch);
echo $response;

Resources

Also published for

@apiverve/benchmarkratenpm apiverve-benchmarkratePyPI APIVerve.API.BenchmarkRateNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Ruby — GET /v1/benchmarkrate

No SDK to install — this is a plain HTTPS call to /v1/benchmarkrate with your key in the x-api-key header. Swap in a real key and it runs as-is.

Ruby

require "net/http"

uri = URI("https://api.apiverve.com/v1/benchmarkrate")
req = Net::HTTP::Get.new(uri)
req["x-api-key"] = "YOUR_API_KEY"

res = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |h| h.request(req) }
puts res.body

Resources

Also published for

@apiverve/benchmarkratenpm apiverve-benchmarkratePyPI APIVerve.API.BenchmarkRateNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Finance

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Benchmark Rate API GET

Try it — live request, no key required

About the Benchmark Rate API

What people use it for

Ways to call it

Other ways to use Benchmark Rate

Questions.

Request parameters — GET /v1/benchmarkrate

Required

Authentication

Response — GET /v1/benchmarkrate

Response fields

Response headers

Errors

What a call costs — 2 credits per call

Call it from cURL — GET /v1/benchmarkrate

Resources

Also published for

Call it from Node.js — GET /v1/benchmarkrate

Resources

Also published for

Call it from Python — GET /v1/benchmarkrate

Resources

Also published for

Call it from C# / .NET — GET /v1/benchmarkrate

Resources

Also published for

Call it from Go — GET /v1/benchmarkrate

Resources

Also published for

Call it from PHP — GET /v1/benchmarkrate

Resources

Also published for

Call it from Ruby — GET /v1/benchmarkrate

Resources

Also published for

Zero-code embed — one snippet, no backend

Changelog — Benchmark Rate API

Finance

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