AI-analyzed overnight crypto token movers via pay-per-call x402 endpoint
What it does
Naiko's `/alpha/overnight` endpoint returns tokens that moved significantly during off-hours (midnight to 8 AM UTC), accompanied by AI-generated analysis explaining what happened while you slept. It is a pay-per-call x402 endpoint hosted on Railway, settling payments in USDC on Base (EIP-155 chain 8453) via the Permit2 transfer method.
Each call costs $0.01 (10,000 base units of USDC with 6 decimals). The endpoint supports gas-sponsored transactions, smart wallet compatibility, and ERC-4337 account abstraction deployments. The response MIME type is `application/json`. The x402 challenge is live and returns a version 2 payment challenge on GET requests.
Documentation is minimal — the provider's landing page identifies the service as "Naiko x402 API" with the tagline "Pay-per-call crypto intelligence powered by x402 protocol." No OpenAPI spec, detailed docs, or example responses are available. Additional endpoints may be discoverable via the `/health/endpoints` and `/.well-known/x402` discovery paths listed on the landing page.
Capabilities
Use cases
- —Get a morning briefing on which tokens moved significantly overnight
- —Automate daily crypto market summaries for off-hours activity
- —Feed overnight token movement data into trading bots or dashboards
- —Agent-driven portfolio monitoring that checks for overnight surprises
Fit
Best for
- —Crypto traders wanting a quick overnight market recap
- —AI agents that need structured overnight token movement data
- —Developers building automated morning market briefings
Not for
- —Real-time or intraday price streaming
- —Non-crypto asset classes (equities, forex, etc.)
- —Users who cannot pay in USDC on Base network
Quick start
curl -X GET https://capable-grace-production-ab1c.up.railway.app/alpha/overnight \
-H "X-Payment: <x402-payment-token>"Endpoint
Quality
The x402 challenge is live and well-formed with clear pricing and payment details. However, there is no OpenAPI spec, no example responses, no detailed documentation, and no /docs endpoint. The endpoint description and pricing are the only concrete information available, so much of the listing is inferred from the challenge payload and landing page.
Warnings
- —No OpenAPI or schema documentation available
- —No example response body available — response structure is unknown
- —No /docs, /api, /pricing, or /README pages exist on the provider's site
- —Endpoint behavior and response fields are entirely inferred from the x402 challenge description
Citations
- —Endpoint returns tokens that moved significantly during off-hours (midnight to 8am UTC) with AI-generated analysishttps://capable-grace-production-ab1c.up.railway.app/alpha/overnight
- —Payment is 10,000 base units of USDC on Base (EIP-155:8453) via Permit2https://capable-grace-production-ab1c.up.railway.app/alpha/overnight
- —Supports gas-sponsored transactions, smart wallets, and ERC-4337 deploymentshttps://capable-grace-production-ab1c.up.railway.app/alpha/overnight
- —Service is called Naiko x402 API — pay-per-call crypto intelligence powered by x402 protocolhttps://capable-grace-production-ab1c.up.railway.app