Trending crypto narrative categories with momentum indicators and top tickers, pay-per-call via x402.
What it does
The Naiko x402 API endpoint at /data/narratives returns trending narrative categories in the cryptocurrency market, including momentum indicators and the top tickers associated with each narrative. It is part of the Naiko pay-per-call crypto intelligence platform, which uses the x402 protocol for micropayments.
Each call costs $0.01 (10,000 base units of USDC on Base, network eip155:8453). Payment is handled via the x402 protocol version 2 using Permit2 asset transfers. Gas is sponsored, smart wallets are supported, and ERC-4337 deployment is available, making the payment flow accessible to both EOA and smart-contract wallets.
Documentation is sparse — the provider's /docs, /api, /pricing, and /README paths all return 404. The endpoint description and response MIME type (application/json) are sourced from the x402 challenge itself. The exact schema of the returned JSON (narrative fields, momentum metrics, ticker structure) is not documented and must be discovered by making a paid call.
Capabilities
Use cases
- —Identify emerging crypto market narratives and their momentum for trading decisions
- —Build dashboards that track which narrative themes are gaining or losing traction
- —Feed narrative signals into automated trading or portfolio rebalancing agents
- —Research which tickers are most associated with trending crypto themes
Fit
Best for
- —AI agents that need on-demand crypto narrative intelligence via micropayments
- —Traders monitoring sector/narrative rotation in crypto markets
- —Data pipelines requiring structured trending-narrative feeds
Not for
- —Users who need historical time-series price data rather than narrative signals
- —Anyone without a Base-compatible wallet or USDC on Base for payment
Quick start
curl -X GET https://capable-grace-production-ab1c.up.railway.app/data/narratives \
-H "X-Payment: <x402_payment_token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with a clear description and pricing. However, there is no OpenAPI schema, no documentation, no example responses, and no detailed field descriptions. Most capability details are inferred from the single-sentence resource description in the challenge.
Warnings
- —No API documentation available — /docs, /api, /pricing, /README all return 404
- —Response schema is unknown; field names and structure must be discovered via a paid call
- —No OpenAPI or ai-plugin manifest found
- —No agents.txt present
Citations
- —Endpoint description: 'Trending narrative categories with momentum indicators and top tickers in each narrative'https://capable-grace-production-ab1c.up.railway.app/data/narratives
- —Price is 10,000 base units of USDC on Base (eip155:8453), i.e. $0.01 per callhttps://capable-grace-production-ab1c.up.railway.app/data/narratives
- —Payment features include gas sponsorship, smart wallet support, and ERC-4337 deploymenthttps://capable-grace-production-ab1c.up.railway.app/data/narratives
- —Naiko x402 API is described as 'Pay-per-call crypto intelligence powered by x402 protocol'https://capable-grace-production-ab1c.up.railway.app