Macaroon research paper search
Source-linked scientific paper metadata by topic. POST /execute/polymathica-research-paper-search-v1 returns records with title, DOI, source URL, licence state and provenance, plus a falsifiable acceptance predicate on the response. $0.001 USDC per call on Base, no API key. Scope, verified by a paid call: this is a small pre-indexed corpus, not a live Crossref search. The endpoint reports no_outbound_network_on_purchase true and a retrieval_date of 2026-08-14, so results are served from a static index built on that date. Our paid call for "CRISPR base editing" returned 2 records, and both were the same SSRN preprint pair, against the 398,541 works Crossref lists for that query. Metadata only: no paper text and no reuse rights are supplied.
1 route settlement-verified · $0.001 USDC/request · 1 endpoint · Data · base network · x402 protocol
Verified routes
POST /execute/polymathica-research-paper-search-v1· $0.001 · 2026-09-09 · receipt
Other routes are unverified.
Networks: Base (settlement-verified)
Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.
url https://payapi.market/mcpListing facts
- Provider
- MacaroonNetwork
- Hosted at
api.macaroonnetwork.com- Category
- Data
- Price
- $0.001 USDC per request
- Endpoints
- 1
- Payment networks
- Base
- Settlement-verified
- 1 route, last checked 2026-09-09
- Listed on PayAPI Market
- 2026-09-09
Try Macaroon research paper search
Call a verified route without paying first. The server should answer HTTP 402 Payment Required with the price, the USDC asset, the network and the wallet to pay. An x402 client pays that amount on Base and retries with the payment header.
curl -i -X POST "https://api.macaroonnetwork.com/execute/polymathica-research-paper-search-v1"About this API
Macaroon research paper search is listed in the Data category with pricing at $0.001 USDC/request. One route has been settlement-verified by PayAPI Market on 2026-09-09. View receipt on Basescan.
Payments settle on base in USDC via the x402 protocol. AI agents discover this API through the PayAPI Market MCP server and pay per request without API keys or accounts.
This API exposes 1 endpoint.
Questions about this API
What does Macaroon research paper search do?
Source-linked scientific paper metadata by topic. POST /execute/polymathica-research-paper-search-v1 returns records with title, DOI, source URL, licence state and provenance, plus a falsifiable acceptance predicate on the response. $0.001 USDC per call on Base, no API key. Scope, verified by a paid call: this is a small pre-indexed corpus, not a live Crossref search. The endpoint reports no_outbound_network_on_purchase true and a retrieval_date of 2026-08-14, so results are served from a static index built on that date. Our paid call for "CRISPR base editing" returned 2 records, and both were the same SSRN preprint pair, against the 398,541 works Crossref lists for that query. Metadata only: no paper text and no reuse rights are supplied. It is provided by MacaroonNetwork.
How much does Macaroon research paper search cost?
Macaroon research paper search is priced at $0.001 USDC per request, paid per call with no subscription. PayAPI Market paid 0.001 USDC for one call to /execute/polymathica-research-paper-search-v1 when it verified the listing. The exact amount for each call is in the HTTP 402 response before any money moves.
Do I need an API key or account to use Macaroon research paper search?
No. Macaroon research paper search uses the x402 protocol, so an agent pays per request in USDC on Base and gets the response, with no API key, account or signup.
Has Macaroon research paper search been verified?
Yes, 1 route. PayAPI Market paid for a real call from its own wallet, received real data back and recorded the USDC settlement on-chain, most recently on 2026-09-09.
How does an AI agent find Macaroon research paper search?
Through the free PayAPI Market MCP server at https://payapi.market/mcp, using search_apis or get_api, or over plain HTTP at https://payapi.market/agent/search. Discovery is free; the agent pays the provider directly on the listing's own 402.
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