ToolVet
80trust / 100

Fred Series

by Citiview Agent Market in Markets & finance

x402 APIPassing, checked 3 h ago

Any public-domain FRED economic time series by id (UNRATE, CPIAUCSL, GDP, DGS10, thousands more): observations with optional transforms (change, % change, % change from a year ago), frequency aggregation and date range, plus title, units and notes.

GET
https://agents.citiviewgroup.com/v1/fred/series
Price
$0.004
per call in USDC
Uptime
100%
last 30 days
Response time
126 ms
1.0 s slowest 5%
Last check
Passed
3 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed

How to call it

GET https://agents.citiviewgroup.com/v1/fred/series

Each call costs $0.004 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://agents.citiviewgroup.com/v1/fred/series?id=UNRATE&limit=12

Parameters

ParameterTypeRequiredDescription
endstringNoYYYY-MM-DD
frequencystringNod, w, m, q, a
idstringYesFRED series id
limitintegerNo
startstringNoYYYY-MM-DD
unitsstringNolin, chg, ch1, pch, pc1, pca, log

Example response

The provider's example. We can't check it without paying.

{
  "id": "UNRATE",
  "latest": {
    "date": "2026-09-01",
    "value": 4.3
  },
  "observations": [
    {
      "date": "2026-09-01",
      "value": 4.3
    }
  ],
  "title": "Unemployment Rate"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.004.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://agents.citiviewgroup.com/v1/fred/series?id=UNRATE&limit=12'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://agents.citiviewgroup.com/v1/fred/series?id=UNRATE&limit=12' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.004 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.004" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.004 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagents.citiviewgroup.com%2Fv1%2Ffred%2Fseries
const res = await pay("https://agents.citiviewgroup.com/v1/fred/series?id=UNRATE&limit=12");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.004 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.004"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://agents.citiviewgroup.com/v1/fred/series?id=UNRATE&limit=12")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
3 h agoPassed4021.0 s$0.004
7 h agoPassed40269 ms$0.004
11 h agoPassed40266 ms$0.004
16 h agoPassed40260 ms$0.004
20 h agoPassed402234 ms$0.004
Show 4 older checks
24 h agoPassed402302 ms$0.002
28 h agoPassed402126 ms$0.002
32 h agoPassed402356 ms$0.002
42 h agoPassed40247 ms$0.002

History

14 Oct 2026Price changed from $0.002 to $0.004