$0.002
per call · USD Coin on Base
A domain-curated, license-verified metadata pointer index over general scientific machine learning (SciML) datasets, papers, models, and code harvested from arXiv, CORE, DataCite, OpenAlex, Zenodo, Hugging Face, and GitHub. Every record returned has been confirmed redistribution_allowed at harvest time -- this is the falsifiable guarantee the listing sells, not raw data volume. Metadata pointers only -- no underlying datasets, papers, models, or code is downloaded or resold.
Endpoint
POST https://api.macaroonnetwork.com/execute/polymathica-sciml-dataset-index-v11
Calls / 30d
1
Unique payers / 30d
Aug 13
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://api.macaroonnetwork.com/execute/polymathica-sciml-dataset-index-v1", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"input": {
"catalog": "sciml"
},
"predicate": {
"conditions": [
{
"field": "$.total",
"type": "count_gte",
"value": 1
},
{
"field": "$.provenance.redistribution_verified",
"operator": "eq",
"type": "field_changed",
"value": true
},
{
"field": "$.provenance.metadata_only",
"operator": "eq",
"type": "field_changed",
"value": true
}
],
"type": "all"
}
}),
});
const data = await res.json();curl -X POST \
"https://api.macaroonnetwork.com/execute/polymathica-sciml-dataset-index-v1" \
-H "Content-Type: application/json" \
-d '{"input":{"catalog":"sciml"},"predicate":{"conditions":[{"field":"$.total","type":"count_gte","value":1},{"field":"$.provenance.redistribution_verified","operator":"eq","type":"field_changed","value":true},{"field":"$.provenance.metadata_only","operator":"eq","type":"field_changed","value":true}],"type":"all"}}' \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"payload": {
"catalog": "",
"provenance": {
"content_hash": "",
"metadata_only": false,
"no_outbound_network_on_purchase": false,
"redistribution_verified": false
},
"records": [],
"total": 0
},
"predicate_passed": true,
"settled": true
}Payment details
0x33cc8de6e86761d217044a8a6b394ad23b579596USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
Pin it to the top of Data & Enrichment and the homepage with a featured placement.
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