Literature Search

{
  "count": 1,
  "coverage": {
    "indexed": 61015,
    "target": 1000
  },
  "method": "Full-text retrieval of complete source passages; the first 12 content terms must match together after common question words are removed.",
  "query": "Ishmael",
  "ranking_scope": "Best matches among the first 400 matching index entries; not an exhaustive corpus-wide relevance ranking. Section 0 (text before the first detected heading) is excluded.",
  "results": [
    {
      "author": "Cannon, George Q. (George Quayle)",
      "book_id": 51095,
      "chapter": 2,
      "chunk_end": 24,
      "chunk_ids": [
        1792585
      ],
      "chunk_index": 24,
      "chunk_start": 24,
      "citation": "Book of Mormon Stories. No. 1. Adapted to the Capacity of Young Children, and Designed for Use in Sabbath Schools, Primary Associations, and for Home Reading by Cannon, George Q. (George Quayle) — section 2, passage #24",
      "location": "section 2, passage #24",
      "passage": "The Lord desired to lead Lehi and those who were with him to a country where there were no people. There was a man named Ishmael, living in Jerusalem who had several sons and daughters. The Lord commanded Lehi to send for Ishmael and invite him to go with them to the new country. Lehi's sons were not married, and by getting Ishmael and his family to go with them the sons of Lehi might take Ishmael's daughters for wives. This was the reason why the Lord desired Lehi to send for Ishmael. Laman, Lemuel, Sam and Nephi were sent to Jerusalem for this family. When they reached Ishmael's house they told him what they had come for. Ishmael and his family were willing to go with them, and so they all traveled together into the wilderness.",
      "source_url": "https://www.gutenberg.org/ebooks/51095",
      "title": "Book of Mormon Stories. No. 1. Adapted to the Capacity of Young Children, and Designed for Use in Sabbath Schools, Primary Associations, and for Home Reading"
    }
  ]
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://library.forgemesh.io/literature-search' \
  -H 'content-type: application/json' \
  --data-raw '{"limit":1,"query":"Ishmael"}'

# 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://library.forgemesh.io/literature-search' \
  -H 'content-type: application/json' \
  --data-raw '{"limit":1,"query":"Ishmael"}' \
  | 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%2Flibrary.forgemesh.io%2Fliterature-search&method=POST
const res = await pay("https://library.forgemesh.io/literature-search", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "limit": 1,
    "query": "Ishmael"
  }),
});
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://library.forgemesh.io/literature-search",
        json={
            "limit": 1,
            "query": "Ishmael",
        },
    )
    print(res.status_code, res.text)