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hexanon-x402-apis

Pay-per-call access to the Hexanon family of eight x402 APIs for autonomous agents — no signup, no API keys, USDC on Base. Covers US/Canada vehicle & VIN intelligence (Vindex), e-commerce demand signals (Demandex), Polymarket whale intelligence (OrcaTrace), GitHub trending-repo digests (gitBeacon), narrative intelligence (Signalis), Moltbook community digests (Moltalyzer), x402 seller conformance scanning (x402lint), and Polymarket weather-market signals (Isocast).

plugins/all-skills/skills/hexanon-x402-apis/SKILL.md

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# Hexanon x402 APIs

Eight independently operated, pay-per-call HTTP APIs that an agent can call directly with USDC micropayments over [x402](https://x402.org) on Base — no accounts, no API keys. Probe any paid route unauthenticated to get a machine-readable HTTP 402 challenge, pay with an x402 client, and retry. Responses are only charged when the work succeeds (`charged: true`).

All endpoint guidance an agent needs is inlined below (snapshot: 2026-08-01). Each origin also publishes a machine-readable `openapi.json` as its reference spec if you need parameter details.

## When to Use This Skill

- Vehicle / VIN due diligence for a US or Canada used car (decode, recalls, known issues, pre-purchase report) — **Vindex**, `api.vindexapi.dev`
- Finding market gaps and product-demand signals — what buyers want but can't find — **Demandex**, `api.demandex.dev`
- Polymarket intelligence: whale positioning, signals, resolving-soon markets, track records — **OrcaTrace**, `api.orcatrace.dev`
- Developer-ecosystem intelligence: trending GitHub repositories and momentum — **gitBeacon**, `api.gitbeacon.dev`
- Narrative and content intelligence: emerging narratives, pulse content, intelligence briefs — **Signalis**, `api.signalis.dev`
- Moltbook community intelligence: digests and a Viral Advisor that scores/rewrites posts — **Moltalyzer**, `api.moltalyzer.xyz`