ToolVet
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Pdf Ocr

by Tanod pdfpeek in Documents & files

x402 APIPassing, checked 3 h ago

pdfpeek (Tanod) PDF OCR: make a scanned PDF searchable, a text layer on up to 5 pages, with the text. Use when a scanned PDF has no text layer and needs OCR so its text can be searched or read. Add output=url for a 24 h link.

POST https://tanod.dev/v1/pdf/ocr

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Status and outage history · Atom feed

Uptime
100%
Response time
810 ms typical, 1.1 s slowest 5%
Last check
3 h ago
Next check
any minute now

How to call it

POST https://tanod.dev/v1/pdf/ocr

Each call costs $0.01 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://tanod.dev/v1/pdf/ocr
content-type: application/json

{
  "pages": "1",
  "skip_text": false,
  "url": "https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf"
}

Parameters

ParameterTypeRequiredDescription
dpiintegerNo100-300 (default 200); at most 200 for more than 5 pages. Default: 200.
langstringNoInstalled tesseract languages only, '+'-joined (eng today). Default: "eng".
outputstringNobase64 (default): the file comes back inline as base64. url: the file is stored for 24 hours and the reply carries a download link (url, expires_at, bytes, content_type, sha256) instead of the base64, which keeps the file out of your context window. One of: base64, url. Default: "base64".
pagesstringYesPages to OCR, at most 10, each part N, N-M, -M or last (no open N- ranges), e.g. 1-3,7. At most 5 pages is the lower price.
pdf_base64string or nullNoThe PDF as base64 (at most 10 MB decoded per request); or use url. Default: null.
skip_textbooleanNoLeave pages that already have text alone. Default: true.
urlstring or nullNoPublic http(s) URL of the PDF (at most 20 MB; private, internal and IP-literal hosts are refused); or use pdf_base64. Default: null.

Example response

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

{
  "active_content_removed": {},
  "dpi": 200,
  "file": {
    "bytes": 15472,
    "content_type": "application/pdf",
    "data_base64": "JVBERi0xLjQKJb/3... (trimmed: 20,632 base64 characters in the reply)",
    "name": "searchable.pdf",
    "pages": 1
  },
  "input_bytes": 13264,
  "input_pages": 1,
  "lang": "eng",
  "ocr_pages": [
    1
  ],
  "operation": "ocr",
  "output_bytes": 15472,
  "skipped_has_text": [],
  "text": "Dummy PDF file",
  "text_truncated": false,
  "untrusted_content": 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 $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://tanod.dev/v1/pdf/ocr' \
  -H 'content-type: application/json' \
  --data-raw '{"pages":"1","skip_text":false,"url":"https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf"}'

# 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://tanod.dev/v1/pdf/ocr' \
  -H 'content-type: application/json' \
  --data-raw '{"pages":"1","skip_text":false,"url":"https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf"}' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ftanod.dev%2Fv1%2Fpdf%2Focr&method=POST
const res = await pay("https://tanod.dev/v1/pdf/ocr", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "pages": "1",
    "skip_text": false,
    "url": "https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf"
  }),
});
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://tanod.dev/v1/pdf/ocr",
        json={
            "pages": "1",
            "skip_text": False,
            "url": "https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf",
        },
    )
    print(res.status_code, res.text)

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