x402-gated NFT data endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at `/api/v1/nfts/76` is part of the lowpaymentfee.com platform, which offers a collection of pay-per-request APIs gated via the x402 protocol on the Base network. The specific endpoint appears to serve NFT-related data (resource ID 76), though the exact response payload is not documented. Payment is settled in USDC (contract `0x8335…2913` on Base) at $0.02 per call (20,000 base units with 6 decimals). No API keys or rate limits are required; callers simply attach an `X-PAYMENT` header with a valid x402 payment proof.
The broader lowpaymentfee.com platform advertises endpoints across several categories: data & analytics (metrics, reports, exports, insights), AI & ML (sentiment analysis, text summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are uniformly priced at $0.02 per request. However, this specific listing is for the `/api/v1/nfts/76` path, which is not listed on the site's landing page among the advertised APIs, so its exact functionality is unclear.
The endpoint is live and returns a proper x402 challenge (HTTP 402 with version 1 accepts array). The method is POST. No OpenAPI schema, detailed documentation, or example responses were found in the crawl. The platform's documentation, pricing, and README pages all require a wallet connection and did not yield useful content.
Capabilities
Use cases
- —Fetching NFT metadata or details for a specific token/collection via a single paid request
- —Integrating NFT data lookups into agent workflows without managing API keys
- —Programmatic access to NFT information settled on-chain via USDC on Base
Fit
Best for
- —Developers wanting key-less, pay-per-use NFT data access
- —AI agents that can settle x402 payments autonomously on Base
- —Prototyping Web3 data pipelines without subscription commitments
Not for
- —High-volume NFT indexing where per-call costs add up quickly
- —Users who need detailed API documentation or guaranteed SLAs before integrating
- —Anyone needing non-USDC or non-Base payment options
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/nfts/76 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is no documentation, no OpenAPI schema, no example responses, and the specific /api/v1/nfts/76 path is not even listed among the provider's advertised APIs. The actual functionality and response format are unknown.
Warnings
- —The /api/v1/nfts/76 endpoint is not listed among the provider's advertised APIs on the landing page — its purpose is unclear.
- —No documentation, OpenAPI spec, or example responses are available; docs/pricing/README pages require wallet connection and returned no content.
- —Response schema and payload structure are completely unknown — callers cannot predict what data they will receive.
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 in USDC on Basehttps://lowpaymentfee.com/api/v1/nfts/76
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/nfts/76
- —All listed endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The platform advertises APIs across data & analytics, AI & ML, finance & Web3, and infrastructure categorieshttps://lowpaymentfee.com