Proxy Service Finder
by Which API Should I Call in Search & web
Find the right paid API for a task across the whole x402 market, not only agentsvc.io: describe what your agent needs in plain words ("convert a web page to markdown", "token price on Solana", "transcribe audio") and get the best matching x402 endpoints from about 45,000 listed ones, each with provider, URL, method, price in USD, payment networks, an input hint, and whether it answered our own check with a valid 402 (reachable, checked_at, response time).
https://agentsvc.io/api/v1/proxy/service-finder- Price
- $0.005
- per call in USDC
- Uptime
- 100%
- last 30 days
- Response time
- 206 ms
- 206 ms slowest 5%
- Last check
- Passed
- 5 h ago, next any minute now
Reliability
Status and outage history · Atom feed · Watch with other listings
How to call it
POST https://agentsvc.io/api/v1/proxy/service-finder
Each call costs $0.005 in USDC on Polygon, 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://agentsvc.io/api/v1/proxy/service-finder
content-type: application/json
{
"limit": 5,
"task": "convert a web page to markdown"
}Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
include_unreachable | boolean | No | Also return endpoints that failed our last check Default: false. |
limit | integer | No | Default: 8. |
max_price_usd | number | No | Only endpoints at or below this price per call |
network | string | No | Only endpoints that accept payment on this network One of: base, solana, polygon, arbitrum, ethereum, optimism, avalanche, bsc. |
task | string | Yes | What your agent needs, in plain words |
Example response
The provider's example. We can't check it without paying.
{
"data": {},
"success": true
}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 -X POST 'https://agentsvc.io/api/v1/proxy/service-finder' \
-H 'content-type: application/json' \
--data-raw '{"limit":5,"task":"convert a web page to markdown"}'
# 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://agentsvc.io/api/v1/proxy/service-finder' \
-H 'content-type: application/json' \
--data-raw '{"limit":5,"task":"convert a web page to markdown"}' \
| grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decodeJavaScript: 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%2Fagentsvc.io%2Fapi%2Fv1%2Fproxy%2Fservice-finder&method=POST
const res = await pay("https://agentsvc.io/api/v1/proxy/service-finder", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({
"limit": 5,
"task": "convert a web page to markdown"
}),
});
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.post(
"https://agentsvc.io/api/v1/proxy/service-finder",
json={
"limit": 5,
"task": "convert a web page to markdown",
},
)
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
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 5 h ago | Passed | 402 | 206 ms | $0.005 |