Macaroonnetwork

Macaroonnetwork is an x402-native service at https://api.macaroonnetwork.com, indexed from the x402 Bazaar (Coinbase's public discovery directory). It charges callers itself in USDC on Base and is paid directly at its own wallet; Monex Protocol passes your request and payment headers through untouched. 12 endpoints listed.

Base

Offers

Offer	Endpoint	Price
Execute Chain State Snapshot V1 Current block number and gas price for Base and Polygon mainnet, fetched live via RPC on every call. Unlike this catalogue's corpus-search listings, this makes a real outbound network call on purchase -- freshness is the product, not a stored snapshot.	`/m/bz-api-macaroonnetwork-com/execute/chain-state-snapshot-v1`	0.001 USDC
Execute Commercial Use Licence Check V1 Check a specific dataset, paper, repository, or model URL against the indexed open-science corpus and receive a conservative, source-linked commercial-use and redistribution status. Never infers permission from an absent or ambiguous licence -- returns unknown rather than guessing.	`/m/bz-api-macaroonnetwork-com/execute/commercial-use-licence-check-v1`	0.003 USDC
Execute Crossref Research Paper Metadata V1 Search a bounded Crossref snapshot for research-paper DOI metadata with stable DOI links, source provenance and conservative linked-work rights fields. Returns metadata only and excludes abstracts and full text.	`/m/bz-api-macaroonnetwork-com/execute/crossref-research-paper-metadata-v1`	0.002 USDC
Execute Nih Reporter Grant Search V1 Search a bounded NIH RePORTER snapshot for federally funded biomedical research grants -- title, funded organization, administering NIH institute, award identifiers, and dates -- across every disease area and biomedical discipline, not one narrow field. Metadata only.	`/m/bz-api-macaroonnetwork-com/execute/nih-reporter-grant-search-v1`	0.002 USDC
Execute Polymathica Archive Record V1 Retrieve one sanitized archive metadata record by asset id, including content hash, readiness state, field inventory summary and evidence flags.	`/m/bz-api-macaroonnetwork-com/execute/polymathica-archive-record-v1`	0.003 USDC
Execute Polymathica Archive Search V1 Search a privacy-safe metadata index derived from 77,053 archived census rows and deduplicated to 23,370 unique content hashes. Includes readiness, quarantine, domain, file type, field names and provenance hashes; does not redistribute raw fields, media or third-party content.	`/m/bz-api-macaroonnetwork-com/execute/polymathica-archive-search-v1`	0.002 USDC
Execute Polymathica Research Paper Search V1 Find source-linked scientific papers by topic. Returns metadata pointers, authors, dates, licence evidence when supplied by the source, and corpus provenance; it does not sell paper text or infer reuse rights.	`/m/bz-api-macaroonnetwork-com/execute/polymathica-research-paper-search-v1`	0.001 USDC
Execute Polymathica Scientific Code Search V1 Find source-linked scientific software and repositories by topic. Returns metadata, declared licence evidence and provenance pointers without downloading or reselling repository contents.	`/m/bz-api-macaroonnetwork-com/execute/polymathica-scientific-code-search-v1`	0.002 USDC
Execute Polymathica Scientific Dataset Search V1 Find source-linked scientific datasets by topic. Returns structured metadata pointers, declared licence fields, provenance and freshness without redistributing dataset files.	`/m/bz-api-macaroonnetwork-com/execute/polymathica-scientific-dataset-search-v1`	0.002 USDC
Execute Polymathica Scientific Model Search V1 Find source-linked scientific machine-learning model records by topic. Returns metadata and provenance pointers only; model weights are not downloaded or resold, and missing licence evidence remains unknown.	`/m/bz-api-macaroonnetwork-com/execute/polymathica-scientific-model-search-v1`	0.002 USDC
Execute Polymathica Transaction Intelligence V1 Measure live, aggregate commerce activity across this marketplace's payment rails, including volume, success rates, and task-state breakdowns by rail and time window. Privacy-preserving by design: no buyer wallet, transaction hash, Lightning node id, or individual payment record is returned.	`/m/bz-api-macaroonnetwork-com/execute/polymathica-transaction-intelligence-v1`	0.015 USDC
Execute Usgs Earthquake Event Search V1 Search a bounded, normalized snapshot of significant recent earthquake events with magnitude, time, depth, location, stable USGS links and provenance. Event-level reuse rights remain unknown because ComCat includes contributing seismic networks.	`/m/bz-api-macaroonnetwork-com/execute/usgs-earthquake-event-search-v1`	0.002 USDC

Machine-readable: openapi.json with x-payment-info offers.

Try it live

Run the full MPP flow from your browser: catch the 402, sign the payment with your wallet, and watch it settle on-chain.

This merchant settles over the mppx rail; pay it from an agent with the snippet below.

Pay with an agent

Any MPP or x402-compatible client works. With mppx, payment is automatic:

import { Mppx, evm } from 'mppx/client'
import { privateKeyToAccount } from 'viem/accounts'

const mppx = Mppx.create({
  methods: [evm({
    account: privateKeyToAccount(process.env.KEY),
    currencies: [evm.assets.base.USDC],
  })],
})

const res = await mppx.fetch('https://api.meshgateway.co/m/bz-api-macaroonnetwork-com/execute/chain-state-snapshot-v1')
// 402 challenge signed and settled automatically; response includes Payment-Receipt

Or inspect the challenge yourself:

curl -i https://api.meshgateway.co/m/bz-api-macaroonnetwork-com/execute/chain-state-snapshot-v1
# HTTP/1.1 402 Payment Required
# WWW-Authenticate: Payment id="…", method="evm", intent="charge", …