ToolVet
76trust / 100

Bond Yields

by zaref.dev in Markets & finance

x402 APIPassing, checked 1 h ago

South African SA benchmark bond yields (SARB closing yields on the R2030 and R209 South African government benchmark bonds, key reference points for the domestic yield curve.) Clean cited JSON with official source URL, effective date and freshness flag.

GET
https://zaref.dev/v1/bond-yields
Price
$0.005
per call in USDC
Uptime
97.0%
last 30 days
Response time
660 ms
824 ms slowest 5%
Last check
Passed
1 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 · Watch with other listings

How to call it

GET https://zaref.dev/v1/bond-yields

Each call costs $0.005 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://zaref.dev/v1/bond-yields

Example response

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

{
  "data": "current values with citations",
  "effective_date": "2026-10-06",
  "series": "bond-yields",
  "source_url": "https://www.resbank.co.za/en/home/what-we-do/statistics/key-statistics/current-market-rates",
  "stale": false
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.005.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://zaref.dev/v1/bond-yields'

# 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://zaref.dev/v1/bond-yields' \
  | 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 $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
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 $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fzaref.dev%2Fv1%2Fbond-yields
const res = await pay("https://zaref.dev/v1/bond-yields");
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 $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://zaref.dev/v1/bond-yields")
    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
1 h agoPassed402657 ms$0.005
6 h agoPassed402760 ms$0.005
11 h agoPassed402685 ms$0.005
15 h agoPassed402714 ms$0.005
20 h agoPassed402650 ms$0.005
Show 10 older checks
24 h agoPassed402665 ms$0.005
28 h agoPassed402856 ms$0.005
32 h agoPassed402824 ms$0.005
37 h agoPassed402667 ms$0.005
41 h agoPassed402748 ms$0.005
45 h agoPassed402642 ms$0.005
2 days agoPassed402627 ms$0.005
2 days agoPassed402687 ms$0.005
2 days agoPassed402623 ms$0.005
3 days agoPassed402658 ms$0.005