$0.004
per call · USD Coin on Base
Takes a text as text, a public URL or inline base64 — PDF, DOCX, ODT, HTML and Markdown are read — and returns it as a graph: the people, organisations, places, products, documents and events it names, and the relations it states between them. Every relation carries the sentence it came from word for word, plus the character offset and line where that sentence stands, and each of those quotes is looked up in the source text before the answer goes out: an exact match, or a match after whitespace…
Endpoint
POST https://buero.halowerk.com/v1/entity-graph1
Calls / 30d
1
Unique payers / 30d
Aug 20
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://buero.halowerk.com/v1/entity-graph", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"document": {
"text": "Die Nordlicht GmbH hat am 3. Maerz 2026 einen Rahmenvertrag mit der Sued-Elektrik AG geschlossen.\n\nGeschaeftsfuehrerin der Nordlicht GmbH ist Anna Berger.\n\nDie Sued-Elektrik AG liefert die Steuergeraete aus ihrem Werk in Ulm."
},
"entity_types": [
"person",
"organisation",
"place",
"document"
],
"max_relations": 20
}),
});
const data = await res.json();curl -X POST \
"https://buero.halowerk.com/v1/entity-graph" \
-H "Content-Type: application/json" \
-d '{"document":{"text":"Die Nordlicht GmbH hat am 3. Maerz 2026 einen Rahmenvertrag mit der Sued-Elektrik AG geschlossen.\n\nGeschaeftsfuehrerin der Nordlicht GmbH ist Anna Berger.\n\nDie Sued-Elektrik AG liefert die Steuergeraete aus ihrem Werk in Ulm."},"entity_types":["person","organisation","place","document"],"max_relations":20}' \
-H "X-PAYMENT: <signed x402 payment>"Payment details
0x2880edfff13100677bf97a3cbdf3bc34771c4e5eUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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