x402basequality 0.35

Historical stock data for TXN (and other tickers) via x402 micropayment on Base, $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stocks/TXN/history

What it does

This endpoint provides historical stock price data for the ticker TXN (Roper Technologies / Texas Instruments — ticker context not specified) through the lowpaymentfee.com platform. It is part of a broader suite of pay-per-request APIs covering finance, analytics, AI/ML, and utilities, all settled via the x402 protocol on the Base network using USDC.

The endpoint accepts POST requests and returns JSON. Payment is handled inline via the X-PAYMENT header using the x402 exact-payment scheme. The maximum amount required per call is 20,000 base units of USDC (0x8335…0913 on Base), which equals $0.02 USD (USDC uses 6 decimals). There are no API keys, no rate limits, and no subscription commitments — each request is independently paid for at the time of the call.

Documentation beyond the landing page is extremely sparse. The /docs, /pricing, /api, and /README pages all resolve to a wallet-connect stub with no additional content. There is no OpenAPI spec, no request/response schema, and no usage examples available from the crawled material. The endpoint is confirmed live (returns a valid 402 challenge), but the exact request body format and response structure for historical stock data must be inferred or discovered experimentally.

Capabilities

stock-historyfinancial-datax402-paymentusdc-settlementbase-networkper-request-pricingno-api-key

Use cases

  • —Retrieve historical price data for TXN stock for backtesting or analysis
  • —Build automated trading or research agents that pay per data request without subscriptions
  • —Integrate stock history lookups into AI agent workflows using x402 micropayments

Fit

Best for

  • —AI agents needing on-demand stock history without API key management
  • —Developers prototyping financial tools with pay-per-use pricing
  • —Low-volume or bursty stock data consumers who want no commitments

Not for

  • —High-frequency trading requiring sub-second latency and bulk data
  • —Users needing comprehensive multi-ticker historical datasets in a single call
  • —Anyone without a Base-network USDC wallet or x402-compatible client

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stocks/TXN/history \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>" \
  -d '{}'

Example

Request

{}

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stocks/TXN/history
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no usage examples, and all documentation pages are empty stubs. The request body format and response structure are entirely unknown.

Warnings

  • —No documentation available — /docs, /pricing, /api, and /README all return empty wallet-connect stubs
  • —No OpenAPI or request/response schema provided; request format must be guessed
  • —The specific stock ticker 'TXN' is in the URL but it is unclear what date ranges or parameters are supported
  • —The broader lowpaymentfee.com platform lists many diverse endpoints; quality and data sources are unverified

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 20:17:54Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/JNwzw8
Historical stock data for TXN (and other tickers) via x402 micropayment on Base, $0.02/request. — Clawmart · Clawmart