SALT19 Agent Utility Grid

Endpoints (51 live)

• POST /v1/usgs-earthquakes — Query recent USGS earthquake events by lookback window and minimum magnitude and return compact live event state. (0.01 USDC on Base)
• POST /v1/base-wallet-balance — Read a wallet's live native ETH balance on Base at the latest block without an API key. (0.01 USDC on Base)
• POST /v1/dependency-go-no-go — Dependency approval decision for coding agents: decide whether an npm dependency or package is safe to install or adopt and return GO, WARN, or BLOCK using vulnerabilities, security, license, maintenance, deprecation, and package metadata. (0.2 USDC on Base)
• POST /v1/agent-plan-verifier — Verify an autonomous agent plan before execution for missing preconditions, destructive steps, unsafe ordering, goal misalignment, constraint violations, and repair actions, returning a bounded GO/WARN/BLOCK result. (0.72 USDC on Base)
• POST /v1/agent-claim-output-verifier — Map an autonomous agent claim or output to supplied evidence and return SUPPORTED, PARTIALLY_SUPPORTED, NOT_PROVEN, or CONTRADICTED with explicit unsupported elements, contradictions, missing evidence, and recommended verification. (0.45 USDC on Base)
• POST /v1/npm-package-intel — Check whether an npm package is deprecated or vulnerable before installing it, including vulnerabilities, license, maintenance, freshness, dependency health, and package.json risk signals. (0.03 USDC on Base)
• POST /v1/model-memory-fit — Can this AI model run on my graphics card? Estimate model memory requirements and check whether a quantized LLM fits available GPU VRAM before loading or local inference. (0.05 USDC on Base)
• POST /v1/sec-company-facts — Return selected latest SEC XBRL company facts from EDGAR's live companyfacts feed with source dates and units. (0.01 USDC on Base)
• POST /v1/agent-code-change-risk-gate — Static pre-merge risk gate for autonomous code changes: inspect a supplied unified diff for security-sensitive surfaces, destructive operations, architecture/constraint conflicts, test requirements, rollback risk, and bounded breaking-change risk before an agent merges or deploys. (1.21 USDC on Base)
• POST /v1/repo-adoption-go-no-go — Repository adoption decision for autonomous coding agents using public GitHub maintenance, archive, license, and repository-health evidence, with explicit UNKNOWN and NOT_PROVEN boundaries for dependency, security, compatibility, integration, and project-fit claims. (0.32 USDC on Base)
• POST /v1/dependency-upgrade-go-no-go — Compare current and target npm versions and return GO/WARN/BLOCK plus UPGRADE/DEFER/BLOCK guidance, bounded semver risk, OSV security implications, recommended tests, and explicit NOT_PROVEN runtime, peer, migration, and ecosystem compatibility boundaries. (0.16 USDC on Base)
• POST /v1/base-token-allowance — Read a live ERC-20 allowance on Base for an owner/spender pair without an API key. Returns the current block and raw token units. (0.01 USDC on Base)
• POST /v1/commerce-decision — Before an autonomous agent pays an x402 challenge, bind the request, accepted payment offer, and machine spending policy into a deterministic GO/WARN/BLOCK decision with SHA-256 commitments. (0.01 USDC on Base)
• POST /v1/base-token-balance — Read a live ERC-20 token balance on Base and return raw units plus best-effort token decimals/symbol metadata without signup or an API key. (0.01 USDC on Base)
• POST /v1/nws-active-alerts — Return current U.S. National Weather Service active alerts for a state or territory as compact structured JSON. (0.01 USDC on Base)
• POST /v1/url-to-llm-markdown — Fetch a public web page, remove scripts/styles/navigation noise, and return bounded LLM-friendly Markdown plus canonical URL and fetch provenance. (0.01 USDC on Base)
• POST /v1/agent-decision-preflight — Before an autonomous coding agent installs or adopts software, return a bounded GO, WARN, or BLOCK decision with evidence and a portable SALT19 verification receipt. (0.45 USDC on Base)
• POST /v1/npm-package-facts — Return live npm registry facts for the latest or requested package version without the higher-priced vulnerability and adoption decision layer. (0.01 USDC on Base)
• POST /v1/commerce-verify — Verify that an x402 v2 payment payload, settlement evidence, original request, accepted offer, spending policy, and delivered response are mutually bound; SALT19 operations can additionally be checked against authoritative D1 commercial state. (0.01 USDC on Base)
• POST /v1/url-http-preflight — Inspect a URL before an autonomous agent calls it, and preflight or verify a website or external API endpoint is healthy and safe to call by checking HTTP status, redirects, latency, and security headers. (0.03 USDC on Base)

+31 more endpoints.