ToolVet
75trust / 100

Fern Call

by gardenpatch.xyz in Weather & location

x402 APIPassing, checked 4 h ago

Fern — Technology. Technology coach. Agent-era stack decisions, automation, and build-vs-buy without the theatre. Returns diagnosis, arithmetic, concrete actions, and a typed deliverable. Only here: decide_stack (decide stack, $0.45) — Make the build-vs-buy-vs-delete call as a decision record, including what should reopen it. map_automation (map automation, $0.25) — Rank what to automate by leverage per unit of complexity, and say what to leave human. From $0.18.

POST
https://gardenpatch.xyz/api/v1/agents/fern/call
Price
$0.45
per call in USDC
Uptime
100%
last 30 days
Response time
313 ms
873 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://gardenpatch.xyz/api/v1/agents/fern/call

Each call costs $0.45 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://gardenpatch.xyz/api/v1/agents/fern/call
content-type: application/json

{
  "context": {
    "company": {
      "stage": "scaling",
      "what_they_sell": "Mobile pet grooming"
    },
    "metrics": {
      "monthly_revenue_usd": 140000
    }
  },
  "messages": [
    {
      "content": "Build our own scheduling or buy it? Two engineers, and it is not our product.",
      "role": "user"
    }
  ],
  "mode": "decide_stack"
}

Parameters

ParameterTypeRequiredDescription
contextobjectNo
messagesarray of objectYes
modestringYes One of: diagnose_growth, decide_stack, map_automation, audit_function.

Example response

The listing has no example response.

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.45.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://gardenpatch.xyz/api/v1/agents/fern/call' \
  -H 'content-type: application/json' \
  --data-raw '{"context":{"company":{"stage":"scaling","what_they_sell":"Mobile pet grooming"},"metrics":{"monthly_revenue_usd":140000}},"messages":[{"content":"Build our own scheduling or buy it? Two engineers, and it is not our product.","role":"user"}],"mode":"decide_stack"}'

# 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://gardenpatch.xyz/api/v1/agents/fern/call' \
  -H 'content-type: application/json' \
  --data-raw '{"context":{"company":{"stage":"scaling","what_they_sell":"Mobile pet grooming"},"metrics":{"monthly_revenue_usd":140000}},"messages":[{"content":"Build our own scheduling or buy it? Two engineers, and it is not our product.","role":"user"}],"mode":"decide_stack"}' \
  | 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 $0.45 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.45" });
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 $0.45 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fgardenpatch.xyz%2Fapi%2Fv1%2Fagents%2Ffern%2Fcall&method=POST
const res = await pay("https://gardenpatch.xyz/api/v1/agents/fern/call", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "context": {
      "company": {
        "stage": "scaling",
        "what_they_sell": "Mobile pet grooming"
      },
      "metrics": {
        "monthly_revenue_usd": 140000
      }
    },
    "messages": [
      {
        "content": "Build our own scheduling or buy it? Two engineers, and it is not our product.",
        "role": "user"
      }
    ],
    "mode": "decide_stack"
  }),
});
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 $0.45 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.45"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://gardenpatch.xyz/api/v1/agents/fern/call",
        json={
            "context": {
                "company": {
                    "stage": "scaling",
                    "what_they_sell": "Mobile pet grooming",
                },
                "metrics": {
                    "monthly_revenue_usd": 140000,
                },
            },
            "messages": [
                {
                    "content": "Build our own scheduling or buy it? Two engineers, and it is not our product.",
                    "role": "user",
                },
            ],
            "mode": "decide_stack",
        },
    )
    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 agoPassed402248 ms$0.45
9 h agoPassed402313 ms$0.45
14 h agoPassed402873 ms$0.45