Pay-per-call market quote endpoint for token "GM" on Base via x402, $0.02/request in USDC.
What it does
This x402-enabled endpoint at lowpaymentfee.com provides a market quote for the token or asset identified as "GM". It is part of a broader suite of pay-per-call APIs offered by the same provider, spanning data analytics, AI/ML inference, finance/Web3, and utility services. All endpoints on the platform share the same pricing model: $0.02 per request, settled in USDC on the Base network. No API keys, subscriptions, or rate limits are required — payment is handled inline via the x402 protocol.
The specific endpoint `/api/v1/market/quote/GM` accepts POST requests and returns JSON. The x402 challenge confirms it is live, requesting a maximum of 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) per call, paid to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base. The payment scheme is "exact" with a 300-second timeout.
Documentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of what fields the quote response contains or what "GM" refers to. The endpoint appears functional based on the 402 challenge, but the lack of documentation makes it difficult to assess the quality or completeness of the data returned.
Capabilities
Use cases
- —Fetching a real-time market quote for the GM token or asset
- —Integrating pay-per-call crypto market data into an agent workflow
- —Programmatic price lookups without API key registration
Fit
Best for
- —Agents or bots that need on-demand crypto quotes without subscription overhead
- —Developers prototyping x402 payment flows on Base
- —Low-volume, pay-as-you-go market data consumers
Not for
- —High-frequency trading requiring sub-second latency guarantees (no SLA documented)
- —Users who need detailed documentation or OpenAPI specs before integrating
- —Bulk historical market data retrieval
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/market/quote/GM \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) with clear pricing ($0.02 USDC on Base), but there is no OpenAPI spec, no example request/response, and all documentation pages return only a wallet-connect prompt. The actual response schema and the meaning of "GM" are unknown.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no technical content.
- —No OpenAPI or schema describing request parameters or response fields.
- —It is unclear what 'GM' refers to (token ticker, project name, etc.) — no description provided by the provider.
- —No example responses available; actual data quality cannot be verified without making a paid request.
Citations
- —The endpoint returns a 402 challenge requesting 20,000 base units of USDC on Base (scheme: exact).https://lowpaymentfee.com/api/v1/market/quote/GM
- —All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on the Base network.https://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.https://lowpaymentfee.com/api/v1/market/quote/GM