Signalis API — Global intelligence, real-time awareness for AI agents on x402 — the 4-hourly Master Intelligence digest (20-source roster) plus AI-business Pulse narratives. Per-call, no signup.

# Signalis API — Global intelligence, real-time awareness for AI agents on x402 — the 4-hourly Master Intelligence digest (20-source roster) plus AI-business Pulse narratives. Per-call, no signup. (v1.0.0) > Signalis is a pay-per-call global-intelligence API for AI agents. Two surfaces: Master Intelligence (a 4-hourly cross-domain synthesis digest drawn from a 20-source roster) and Pulse (AI-business narrative intelligence — active narratives, narrative detail, historical digests, and raw content). The master-digest feeds are free to poll and read (/v1/intelligence/index, /v1/intelligence/brief, /v1/intelligence/latest) and /v1/intelligence/sample shows the shape; the paid endpoints (master-digest history + the four Pulse routes) settle per call via x402 (USDC on Base). Try /v1/intelligence/latest or /v1/intelligence/sample to learn the shape before paying. ## Base URL - API: https://api.signalis.dev - This document: https://api.signalis.dev/llms.txt · Extended: https://api.signalis.dev/llms-full.txt - Discovery (JSON): https://api.signalis.dev/discovery - OpenAPI 3.1: https://api.signalis.dev/openapi.json - x402 manifest: https://api.signalis.dev/.well-known/x402 - Agent card (A2A): https://api.signalis.dev/.well-known/agent-card.json - Terms: https://api.signalis.dev/terms.txt ## Free endpoints (no auth, no payment) | Method | Path | Description | |--------|------|-------------| | GET | /.well-known/hexanon | Catalog of all products in the Hexanon family (x402 data & intelligence APIs for AI agents) — names, taglines, API base URLs, docs, MCP packages. Same catalog on every Hexanon product; canonical copy at https://api.moltalyzer.xyz/.well-known/hexanon. (rate limit: 5/min) | | GET | /v1/intelligence/brief | Free (rate-limited 5/min per IP). Current Master Intelligence digest brief — title, executive summary, and overall sentiment. Full digest at GET /v1/intelligence/latest (free). (rate limit: 5/min) | | GET | /v1/intelligence/index | Free (rate

{ "openapi": "3.1.0", "info": { "title": "Signalis API", "version": "1.0.0", "x-guidance": "Signalis — pay-per-call global intelligence for AI agents on x402 (USDC on Base Mainnet, eip155:8453). FREE (no key, no payment, rate-limited 5/min per IP): GET /v1/intelligence/index (poll for new master digests, 4h cadence), /v1/intelligence/brief (title + executive summary + sentiment), /v1/intelligence/latest (full Master Intelligence digest — narratives, signals, crossDomainInsigh