DeFi liquidity data for RSR (Reserve Rights) via pay-per-call x402 on Base
What it does
This endpoint provides DeFi liquidity data for the RSR (Reserve Rights) token, accessible at `https://lowpaymentfee.com/api/v1/defi/RSR/liquidity`. It is part of a broader suite of pay-per-request APIs offered by lowpaymentfee.com, spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. The endpoint uses the x402 payment protocol, settling in USDC on the Base network.
Each request costs $0.02 (20,000 base units of USDC with 6 decimals). There are no API keys, no rate limits, and no subscription commitments — callers simply attach an x402 payment header to each POST request. The response MIME type is `application/json`, and the payment timeout is 300 seconds.
Documentation beyond the landing page is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The exact structure of the liquidity data returned is unknown and must be inferred or discovered by making a paid request.
Capabilities
Use cases
- —Querying current DeFi liquidity pools and depth for the RSR token
- —Monitoring RSR liquidity across decentralized exchanges
- —Building dashboards or alerts around RSR liquidity changes
- —Feeding RSR liquidity data into trading bots or portfolio management tools
Fit
Best for
- —Developers needing on-demand RSR liquidity snapshots without managing API keys
- —Agents or bots that can settle micropayments in USDC on Base
- —Projects integrating Reserve Rights ecosystem data into analytics pipelines
Not for
- —Users who need free or subscription-based access without per-call crypto payments
- —Applications requiring detailed historical liquidity time-series (no evidence this is supported)
- —Non-RSR token liquidity queries (endpoint is token-specific)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/defi/RSR/liquidity \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge with clear pricing and settlement details. However, there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page, and no example payloads. The docs/pricing/README pages are all empty wallet-connect stubs. The listing is effectively a stub with confirmed liveness.
Warnings
- —No OpenAPI or schema documentation available — request and response formats are unknown
- —All documentation pages (docs, API, pricing, README) render only a 'Connect wallet' prompt with no content
- —The specific data returned by the RSR liquidity endpoint cannot be verified without making a paid call
- —This endpoint is one of many on the platform; the platform appears to be a generic multi-category API host — actual data quality and sources are unverified
Citations
- —Endpoint returns HTTP 402 with x402 challenge, confirming it is livehttps://lowpaymentfee.com/api/v1/defi/RSR/liquidity
- —Payment is 20,000 base units of USDC (USD Coin, 6 decimals = $0.02) on Base networkhttps://lowpaymentfee.com/api/v1/defi/RSR/liquidity
- —Platform advertises $0.02/request, no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —Docs, API, pricing, and README pages show only 'Connect wallet' with no additional contenthttps://lowpaymentfee.com/docs