ToolVet
78trust / 100

Research

by Deep research report (grounded, in Search & web

x402 APIPassing, checked 3 h ago

Hand over a whole research question and get one cited report back. The gateway plans sub-questions, runs multiple live web searches, reranks the sources by relevance, and synthesizes a ~1,500-word report with inline [n] citations and a source list - one payment, one outcome. Priced per report, not per call. Payable in USDC (x402/MPP) or by card (Stripe, >= $0.50 minimum - this clears it). Not cached (the web moves).

POST
https://agent402.tools/v1/research
Price
$0.6
per call in USDC
Uptime
100%
last 30 days
Response time
289 ms
406 ms slowest 5%
Last check
Passed
3 h ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://agent402.tools/v1/research

Each call costs $0.6 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://agent402.tools/v1/research
content-type: application/json

{
  "query": "What are the leading agentic-payment protocols in 2026 and how do they differ?",
  "recency": "year"
}

Parameters

ParameterTypeRequiredDescription
focusarray of stringNoOptional aspects to emphasize (<= 8).
formatstringNoResponse shape (default markdown report). One of: markdown, json.
querystringYesThe research question to investigate (<= 2000 chars).
recencystringNoPrefer sources from this window (default any). One of: week, month, year, any.

Example response

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

{
  "meta": {
    "searches_run": 3,
    "sources_cited": 12,
    "sources_consulted": 14,
    "synthesis_model": "anthropic/claude-sonnet-5",
    "tier": "research"
  },
  "report": "# Leading agentic-payment protocols (2026)\n\nThe field splits into stablecoin rails and card rails [1]…\n\n## Sources\n[1] … - https://…",
  "sources": [
    {
      "n": 1,
      "rank": 0.94,
      "snippet": "…",
      "title": "…",
      "url": "https://…"
    }
  ],
  "sub_questions": [
    "What stablecoin agent-payment protocols exist?",
    "…"
  ]
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.6.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://agent402.tools/v1/research' \
  -H 'content-type: application/json' \
  --data-raw '{"query":"What are the leading agentic-payment protocols in 2026 and how do they differ?","recency":"year"}'

# 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://agent402.tools/v1/research' \
  -H 'content-type: application/json' \
  --data-raw '{"query":"What are the leading agentic-payment protocols in 2026 and how do they differ?","recency":"year"}' \
  | 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 $0.6 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.6" });
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 $0.6 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagent402.tools%2Fv1%2Fresearch&method=POST
const res = await pay("https://agent402.tools/v1/research", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "query": "What are the leading agentic-payment protocols in 2026 and how do they differ?",
    "recency": "year"
  }),
});
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 $0.6 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.6"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://agent402.tools/v1/research",
        json={
            "query": "What are the leading agentic-payment protocols in 2026 and how do they differ?",
            "recency": "year",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

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3 h agoPassed402342 ms$0.6
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Show 10 older checks
27 h agoPassed402203 ms$0.6
31 h agoPassed402280 ms$0.6
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