AI sentiment analysis of any text: positive, negative or neutral with a confidence score. It is built for autonomous AI agents: discover it, pay for it, and consume it in a single request via the x402 protocol — no API key, no account.
GET https://x402render.vercel.app/sentiment
Example: /sentiment?text=I love this product
text | string — text to analyze (required) |
The endpoint returns HTTP 402 Payment Required with the price, asset (USDC), network (Base / eip155:8453), and pay-to address. Your agent pays on-chain and resends with the payment proof header. Compatible with @coinbase/x402 and @piprail/sdk.
See the full catalog at x402render, the machine-readable list at /discovery/resources, or the spec at /openapi.json.