Saas Pricing

{
  "billing": {
    "amount_usdc": 0.02,
    "mode": "production",
    "status": "settled"
  },
  "cache_age_seconds": 0,
  "conflicts": [],
  "data": {
    "comparison": {
      "changes": [],
      "previous_retrieved_at": null,
      "previous_snapshot_id": null,
      "status": "baseline_created"
    },
    "content_hash": "illustrative",
    "coverage": "reviewed_headline_plans_only",
    "history_scope": "observations_by_this_service; not a complete price history",
    "language": "en",
    "parser_version": "1",
    "plans": [
      {
        "amount": 0,
        "billing_commitment": "unknown",
        "currency": null,
        "currency_symbol": "$",
        "evidence_quote": "Free $0 Free for everyone Unlimited members",
        "features": [
          "Unlimited members"
        ],
        "name": "Free",
        "price_kind": "free",
        "price_period": null,
        "retrieved_at": "2026-09-20T00:00:00Z",
        "source_url": "https://linear.app/pricing",
        "unit": null
      }
    ],
    "product": "linear",
    "retrieved_at": "2026-09-20T00:00:00Z",
    "snapshot_id": "11111111-1111-4111-8111-111111111111",
    "source_url": "https://linear.app/pricing"
  },
  "missing_fields": [
    "Free.currency",
    "Free.unit",
    "Free.price_period"
  ],
  "request_id": "example-pricing-not-a-live-transaction",
  "retrieved_at": "2026-09-20T00:00:00Z",
  "schema_version": "1.0",
  "sources": [
    {
      "retrieved_at": "2026-09-20T00:00:00Z",
      "url": "https://linear.app/pricing"
    }
  ],
  "warnings": [
    "Illustrative excerpt, not a live price quote or transaction."
  ]
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://agent-research-api.onrender.com/v1/saas-pricing' \
  -H 'content-type: application/json' \
  --data-raw '{"product":"linear"}'

# 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://agent-research-api.onrender.com/v1/saas-pricing' \
  -H 'content-type: application/json' \
  --data-raw '{"product":"linear"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagent-research-api.onrender.com%2Fv1%2Fsaas-pricing&method=POST
const res = await pay("https://agent-research-api.onrender.com/v1/saas-pricing", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "product": "linear"
  }),
});
console.log(res.status, await res.text());

# 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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://agent-research-api.onrender.com/v1/saas-pricing",
        json={
            "product": "linear",
        },
    )
    print(res.status_code, res.text)