ToolVet
80trust / 100

Demand Feed

by Delx Demand Feed in Onchain & crypto

x402 APIPassing, checked 4 h ago

Look up open buyer RFQs for $0.003 USDC. Call when you need live demand with public task contracts, USDC ceilings, deadlines, and acceptance criteria instead of waiting for catalog traffic. Bid separately with a wallet signature; this call never exposes buyer capabilities, encrypted envelopes, raw wallets, or payment proofs and never custodies funds. No API key, no subscription.

POST
https://api.delx.ai/api/v1/x402/demand/feed
Price
$0.003
per call in USDC
Uptime
100%
last 30 days
Response time
18 ms
111 ms slowest 5%
Last check
Passed
4 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

POST https://api.delx.ai/api/v1/x402/demand/feed

Each call costs $0.003 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.

POST https://api.delx.ai/api/v1/x402/demand/feed
content-type: application/json

{
  "capability_family": "document_analysis",
  "limit": 25
}

Parameters

ParameterTypeRequiredDescription
capability_familystringNo
limitintegerNo Default: 100.

Example response

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

{
  "generated_at": "2026-08-06T12:00:00Z",
  "rfqs": [
    {
      "budget_ceiling_usdc": "0.08",
      "capability_family": "document_analysis",
      "rfq_id": "123e4567-e89b-12d3-a456-426614174000",
      "state": "open"
    }
  ],
  "schema": "delx/demand-board-feed/v1"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.003.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.delx.ai/api/v1/x402/demand/feed' \
  -H 'content-type: application/json' \
  --data-raw '{"capability_family":"document_analysis","limit":25}'

# 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 - -X POST 'https://api.delx.ai/api/v1/x402/demand/feed' \
  -H 'content-type: application/json' \
  --data-raw '{"capability_family":"document_analysis","limit":25}' \
  | 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 $0.003 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.003" });
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 $0.003 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.delx.ai%2Fapi%2Fv1%2Fx402%2Fdemand%2Ffeed&method=POST
const res = await pay("https://api.delx.ai/api/v1/x402/demand/feed", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "capability_family": "document_analysis",
    "limit": 25
  }),
});
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 $0.003 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.003"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.delx.ai/api/v1/x402/demand/feed",
        json={
            "capability_family": "document_analysis",
            "limit": 25,
        },
    )
    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
4 h agoPassed40218 ms$0.003
8 h agoPassed40214 ms$0.003
12 h agoPassed40222 ms$0.003
16 h agoPassed4028 ms$0.003
21 h agoPassed4026 ms$0.003
Show 10 older checks
25 h agoPassed40210 ms$0.003
29 h agoPassed4025 ms$0.003
33 h agoPassed4027 ms$0.003
37 h agoPassed4029 ms$0.003
41 h agoPassed40210 ms$0.003
45 h agoPassed402111 ms$0.003
2 days agoPassed40220 ms$0.003
2 days agoPassed40230 ms$0.003
2 days agoPassed40263 ms$0.003
3 days agoPassed40224 ms$0.003