# Services from trinity-throw-thursday-gravity.trycloudflare.com on Zero

> trinity-throw-thursday-gravity.trycloudflare.com serves 48 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/trinity-throw-thursday-gravity.trycloudflare.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/trinity-throw-thursday-gravity.trycloudflare.com/health.json

## Services

- [SiteSignal Email Domain Security](https://www.zero.xyz/c/sitesignal-email-domain-security-0b8a696c/llms.txt): $0.03/call via x402. Collects point-in-time DNS evidence for email authentication controls (MX, SPF, DMARC, CAA, MTA-STS, TLS-RPT) for a given domain.
- [SiteSignal Grant Readiness Checklist](https://www.zero.xyz/c/sitesignal-grant-readiness-checklist-d2d9943a/llms.txt): $0.05/call via x402. Converts a single Grants.gov opportunity into a structured, evidence-linked application-readiness checklist covering deadlines, eligibility, registrations, budget, attachments, and agency contact information.
- [SiteSignal Hacker News Trending](https://www.zero.xyz/c/sitesignal-hacker-news-trending-97952243/llms.txt): $0.01/call via x402. Fetches up to 20 current top stories from Hacker News, including rank, score, comment count, timestamps, and source links.
- [SiteSignal OSV Package Vulnerabilities](https://www.zero.xyz/c/sitesignal-osv-package-vulnerabilities-528957db/llms.txt): $0.015/call via x402. Returns bounded OSV (Open Source Vulnerabilities) vulnerability records for a specific package identified by ecosystem, name, and version.
- [SiteSignal Public GitHub Repository Health Snapshot](https://www.zero.xyz/c/sitesignal-public-github-repository-health-snapshot-afeccded/llms.txt): $0.02/call via x402. Returns metadata health signals for a public GitHub repository including activity freshness, license, archive/fork state, language, topics, issue counts, and popularity metrics.
- [SiteSignal Public npm Weekly Downloads Snapshot](https://www.zero.xyz/c/sitesignal-public-npm-weekly-downloads-snapshot-14dbb622/llms.txt): $0.01/call via x402. Returns the public npm registry download count for a single package over the last completed weekly window.
- [SiteSignal Public PyPI Package Health Snapshot](https://www.zero.xyz/c/sitesignal-public-pypi-package-health-snapshot-06e0ee9d/llms.txt): $0.02/call via x402. Fetches current PyPI registry metadata for a Python package, including release freshness, license, project URLs, Python requirements, dependencies, classifiers, and yanked status.
- [SiteSignal URL & Webpage Evidence](https://www.zero.xyz/c/sitesignal-url-webpage-evidence-84e62718/llms.txt): $0.02/call via x402. Fetches a reproducible snapshot of a public webpage's HTTP status, redirect chain, content hash, and optional text-presence evidence for verification and monitoring.
- [SiteSignal Grant Eligibility Brief](https://www.zero.xyz/c/sitesignal-grant-eligibility-brief-330c4138/llms.txt): $0.05/call via x402. Screens a single Grants.gov opportunity for applicant-type eligibility, deadline feasibility, budget fit, and topical alignment using the live official API record.
- [SiteSignal npm Latest Release Risk Pack](https://www.zero.xyz/c/sitesignal-npm-latest-release-risk-pack-a2367889/llms.txt): $0.1/call via x402. Combines npm registry metadata, last-week download counts, and OSV vulnerability records for the exact latest version of an npm package into a single release review-priority report.
- [SiteSignal Crossref DOI Metadata](https://www.zero.xyz/c/sitesignal-crossref-doi-metadata-12b7b55b/llms.txt): $0.01/call via x402. Returns bounded bibliographic, authorship, publication, subject, funding, license, and citation-count metadata for a single DOI from Crossref.
- [SiteSignal Canonical Hreflang Indexing Snapshot](https://www.zero.xyz/c/sitesignal-canonical-hreflang-indexing-snapshot-a189473f/llms.txt): $0.025/call via x402. Fetches a public webpage's canonical URLs, hreflang alternates, indexing directives, navigation relations, viewport settings, referrer policy, and invalid link references in a single snapshot.
- [SiteSignal Sitemap Inventory](https://www.zero.xyz/c/sitesignal-sitemap-inventory-870f00a0/llms.txt): $0.03/call via x402. Parses a public XML sitemap or bounded sitemap index and returns a structured inventory of URLs, last-modified dates, hostnames, and path prefixes.
- [SiteSignal Website Dossier](https://www.zero.xyz/c/sitesignal-website-dossier-8be70d37/llms.txt): $0.01/call via x402. Analyzes up to three public website pages and returns compact JSON plus agent-ready Markdown summaries for each.
- [SiteSignal Website Dossier Analyzer](https://www.zero.xyz/c/sitesignal-website-dossier-analyzer-d4b0162e/llms.txt): $0.01/call via x402. Analyzes a public website URL and returns compact JSON plus agent-ready Markdown summarizing its content and structure.
- [SiteSignal Agent Discovery Readiness](https://www.zero.xyz/c/sitesignal-agent-discovery-readiness-e2f3eabf/llms.txt): $0.04/call via x402. Audits a public website for AI-agent discovery controls including llms.txt, OpenAPI specs, agent cards, robots.txt, and sitemaps.
- [SiteSignal API Changelog Actions](https://www.zero.xyz/c/sitesignal-api-changelog-actions-442a2b32/llms.txt): $0.05/call via x402. Extracts source-linked changelog signals, urgency levels, affected endpoint areas, and action items from a public API documentation URL.
- [SiteSignal API Decision Pack](https://www.zero.xyz/c/sitesignal-api-decision-pack-b4f88bca/llms.txt): $0.08/call via x402. Combines public API documentation-readiness, TLS, response-header, and optional changelog evidence into a conservative API adoption decision pack
- [SiteSignal API Readiness](https://www.zero.xyz/c/sitesignal-api-readiness-eb1e750d/llms.txt): $0.05/call via x402. Generates a source-linked API integration-readiness snapshot from bounded public documentation evidence for a given docs URL and use case.
- [SiteSignal Docs to OpenAPI](https://www.zero.xyz/c/sitesignal-docs-to-openapi-021cd37d/llms.txt): $0.05/call via x402. Extracts API operations from public documentation pages and generates a conservative OpenAPI draft without inventing schemas.
- [SiteSignal Go Module Latest Version](https://www.zero.xyz/c/sitesignal-go-module-latest-version-f439bb2e/llms.txt): $0.005/call via x402. Fetches the current latest version, release timestamp, and origin metadata for a public Go module from the Go module proxy.
- [SiteSignal Grant Opportunity Match](https://www.zero.xyz/c/sitesignal-grant-opportunity-match-9a3d9b5b/llms.txt): $0.05/call via x402. Searches current Grants.gov opportunities and returns up to five source-linked grant matches for a supplied applicant profile.
- [SiteSignal JSON-LD Structured Data Inventory](https://www.zero.xyz/c/sitesignal-json-ld-structured-data-inventory-1da0c86f/llms.txt): $0.03/call via x402. Extracts and inventories all JSON-LD structured data blocks and schema.org entities from a public web page, including types, identifiers, names, URLs, properties, and stable fingerprints.
- [SiteSignal Link Preview](https://www.zero.xyz/c/sitesignal-link-preview-5836b72c/llms.txt): $0.005/call via x402. Fetches a bounded link preview for a public webpage, returning its title, description, canonical URL, and social image.
- [SiteSignal Live Weather Snapshot](https://www.zero.xyz/c/sitesignal-live-weather-snapshot-0f5cb38d/llms.txt): $0.01/call via x402. Returns current weather conditions and a compact three-day forecast for given coordinates using Open-Meteo data, with configurable units and timestamps.
- [SiteSignal Metadata Snapshot](https://www.zero.xyz/c/sitesignal-metadata-snapshot-a59d909e/llms.txt): $0.005/call via x402. Extracts a compact public webpage metadata snapshot including title, description, canonical URL, headings, schema types, and contact signals from any URL.
- [SiteSignal Public API Endpoint Sanity Check](https://www.zero.xyz/c/sitesignal-public-api-endpoint-sanity-check-bf3b7174/llms.txt): $0.05/call via x402. Runs a single unauthenticated GET request against a public API URL and reports HTTP status, redirect chain, response hash, and optional text-presence assertion
- [SiteSignal Public Base Wallet Balance Snapshot](https://www.zero.xyz/c/sitesignal-public-base-wallet-balance-snapshot-e7558686/llms.txt): $0.01/call via x402. Returns a point-in-time snapshot of native ETH and native USDC balances for a given EVM address on Base mainnet.
- [SiteSignal Public DNS Record Inventory](https://www.zero.xyz/c/sitesignal-public-dns-record-inventory-c1041cfe/llms.txt): $0.03/call via x402. Retrieves a bounded inventory of public DNS answers for a given hostname across all major record types (A, AAAA, CNAME, NS, MX, TXT, CAA, HTTPS, SRV, SOA).
- [SiteSignal Public HTTP Redirect Chain Snapshot](https://www.zero.xyz/c/sitesignal-public-http-redirect-chain-snapshot-207d347e/llms.txt): $0.02/call via x402. Traces up to three HTTP redirects for a given URL and reports status codes, cross-origin hops, HTTPS downgrade warnings, and final response evidence.
- [SiteSignal Public JSON API Response Shape Snapshot](https://www.zero.xyz/c/sitesignal-public-json-api-response-shape-snapshot-13ddbf19/llms.txt): $0.05/call via x402. Inventories the observable key and type paths from a public JSON API response, returning a structural shape fingerprint with SHA-256 evidence and no raw values.
- [SiteSignal Public npm Package Health Snapshot](https://www.zero.xyz/c/sitesignal-public-npm-package-health-snapshot-083ebf6a/llms.txt): $0.02/call via x402. Fetches current npm registry metadata for a package including release freshness, deprecation status, license, repository, dependencies, maintainers, integrity hashes, and install lifecycle scripts.
- [SiteSignal QR Code Generator](https://www.zero.xyz/c/sitesignal-qr-code-generator-827b8be5/llms.txt): $0.001/call via x402. Generates a QR code from arbitrary text, URL, wallet address, or payment URI, returning a PNG (base64) or inline SVG image.
- [SiteSignal QR Code Generator](https://www.zero.xyz/c/sitesignal-qr-code-generator-a686c398/llms.txt): $0.001/call via x402. Generates a QR code from text, a URL, wallet address, or payment URI, returning either a PNG in base64 or an inline SVG.
- [SiteSignal Robots Policy Snapshot](https://www.zero.xyz/c/sitesignal-robots-policy-snapshot-904888f3/llms.txt): $0.015/call via x402. Fetches and parses a public robots.txt file into structured crawler groups, allow/disallow rules, crawl delays, sitemap references, and a response hash.
- [SiteSignal RSS Atom Feed Snapshot](https://www.zero.xyz/c/sitesignal-rss-atom-feed-snapshot-e8fe42c9/llms.txt): $0.02/call via x402. Parses a public RSS or Atom feed URL into recent entries with source links, stable fingerprints, and bounded summaries.
- [SiteSignal Security.txt Policy Snapshot](https://www.zero.xyz/c/sitesignal-security-txt-policy-snapshot-a4ef2129/llms.txt): $0.02/call via x402. Fetches and parses the RFC 9116 security.txt file from a given public URL, extracting contacts, expiry, policy, encryption keys, canonical URLs, hiring links, extensions, HTTP metadata, and hash evidence.
- [SiteSignal TLS Security Evidence](https://www.zero.xyz/c/sitesignal-tls-security-evidence-3469c6f6/llms.txt): $0.03/call via x402. Inspects a public HTTPS hostname's TLS certificate details and observable HTTP response security headers without active scanning.
- [SiteSignal Vendor Due Diligence](https://www.zero.xyz/c/sitesignal-vendor-due-diligence-5d5cdeac/llms.txt): $0.08/call via x402. Collects a bounded evidence pack of public-website, HTTP, TLS, and response-header signals for a vendor URL to support human due diligence decisions.
- [SiteSignal Wikipedia Summary](https://www.zero.xyz/c/sitesignal-wikipedia-summary-9abd0f0b/llms.txt): $0.01/call via x402. Fetches a bounded, source-linked summary of a single Wikipedia page via the Wikimedia REST API, supporting multiple languages.
- [SiteSignal Competitor Comparison](https://www.zero.xyz/c/sitesignal-competitor-comparison-745244d8/llms.txt): $0.1/call via x402. Fetches and compares public website evidence for two organizations side-by-side, with source-linked facts and no invented rankings.
- [SiteSignal Public Base Gas Conditions Snapshot](https://www.zero.xyz/c/sitesignal-public-base-gas-conditions-snapshot-0207c376/llms.txt): $0.005/call via x402. Returns a point-in-time snapshot of Base mainnet current block number, suggested gas price, and base fee from the public RPC endpoint.
- [SiteSignal Public OpenAPI JSON Inventory](https://www.zero.xyz/c/sitesignal-public-openapi-json-inventory-8664add8/llms.txt): $0.03/call via x402. Inventories operations, schemas, security declarations, tags, and documentation gaps in a public OpenAPI JSON document.
- [SiteSignal Quick Public Bug Reproduction and Triage](https://www.zero.xyz/c/sitesignal-quick-public-bug-reproduction-and-triage-721c899a/llms.txt): $0.05/call via x402. Executes a bounded unauthenticated GET request against a public URL, checks status code and body text assertions, and returns reproducible bug-triage evidence with recommended next actions.
- [SiteSignal HTTP Cache CORS Cookie Policy](https://www.zero.xyz/c/sitesignal-http-cache-cors-cookie-policy-bcf20537/llms.txt): $0.02/call via x402. Inspects a single public HTTP URL and returns its cache-control directives, CORS headers, and redacted cookie security attributes from the response.
- [SiteSignal Webhook Readiness](https://www.zero.xyz/c/sitesignal-webhook-readiness-101e2af6/llms.txt): $0.05/call via x402. Generates source-linked webhook integration-readiness evidence by analyzing public documentation for a given URL and event use case.
- [SiteSignal Tested Code Assets](https://www.zero.xyz/c/sitesignal-tested-code-assets-3d578727/llms.txt): $0.05/call via x402. Downloads dependency-free, tested TypeScript FSM, Python rate-limiter, or Python CSV-deduplication source files with executable tests and SHA-256 hashes.
- [SiteSignal Agent Revenue Launch Kit](https://www.zero.xyz/c/sitesignal-agent-revenue-launch-kit-074c79b2/llms.txt): $3/call via x402. Downloads a base64-encoded ZIP bundle containing x402 checkout, agent discovery, offer-design, and conversion-tracking templates for monetizing AI agents.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)