SALT19 Agent Utility Grid
Machine-payable technical decision, verification and commerce-trust capabilities over x402 v2 on Base USDC.
- base-token-allowance [PAYABILITY UNKNOWN] $0.01
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. - base-token-balance [PAYABILITY UNKNOWN] $0.01
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. - base-transaction-status [PAYABILITY UNKNOWN] $0.01
Check current Base transaction receipt state and return PENDING, CONFIRMED_SUCCESS, or CONFIRMED_REVERTED with block and gas evidence. - base-wallet-balance [PAYABILITY UNKNOWN] $0.01
Read a wallet's live native ETH balance on Base at the latest block without an API key. - base-contract-state [PAYABILITY UNKNOWN] $0.01
Inspect whether a Base address currently has deployed bytecode and return code size plus best-effort ERC-20 metadata. - sec-recent-filings [PAYABILITY UNKNOWN] $0.01
Return recent SEC EDGAR filings for a company CIK from the live SEC submissions feed, normalized for agent consumption. - sec-company-facts [PAYABILITY UNKNOWN] $0.01
Return selected latest SEC XBRL company facts from EDGAR's live companyfacts feed with source dates and units. - nws-active-alerts [PAYABILITY UNKNOWN] $0.01
Return current U.S. National Weather Service active alerts for a state or territory as compact structured JSON. - usgs-earthquakes [PAYABILITY UNKNOWN] $0.01
Query recent USGS earthquake events by lookback window and minimum magnitude and return compact live event state. - url-to-llm-markdown [PAYABILITY UNKNOWN] $0.01
Fetch a public web page, remove scripts/styles/navigation noise, and return bounded LLM-friendly Markdown plus canonical URL and fetch provenance. - npm-package-facts [PAYABILITY UNKNOWN] $0.01
Return live npm registry facts for the latest or requested package version without the higher-priced vulnerability and adoption decision layer. - github-repo-facts [PAYABILITY UNKNOWN] $0.01
Return current public GitHub repository facts such as archive state, license, stars, forks, branch and latest push without the premium adoption decision. - agent-code-change-risk-gate [PAYABILITY UNKNOWN] $1.21
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. - agent-decision-preflight [PAYABILITY UNKNOWN] $0.45
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. - github-repo-preflight [PAYABILITY UNKNOWN] $0.09
GitHub repository due diligence for coding agents: evaluate whether a public or open-source repository is safe and maintained enough to adopt using license, maintenance, release freshness, activity, project health, and risk signals. - model-memory-fit [PAYABILITY UNKNOWN] $0.05
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. - npm-package-intel [PAYABILITY UNKNOWN] $0.03
Check whether an npm package is deprecated or vulnerable before installing it, including vulnerabilities, license, maintenance, freshness, dependency health, and package.json risk signals. - url-http-preflight [PAYABILITY UNKNOWN] $0.03
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. - agent-plan-verifier [PAYABILITY UNKNOWN] $0.72
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. - dependency-go-no-go [PAYABILITY UNKNOWN] $0.20
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. - agent-claim-output-verifier [PAYABILITY UNKNOWN] $0.45
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. - repo-adoption-go-no-go [PAYABILITY UNKNOWN] $0.32
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. - dependency-upgrade-go-no-go [PAYABILITY UNKNOWN] $0.16
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. - commerce-decision [PAYABILITY UNKNOWN] $0.01
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. - commerce-receipt [PAYABILITY UNKNOWN] $0.03
Verify an x402 commercial state and persist a signed Ed25519 Proof402 receipt whose Commerce State Root commits request, offer, policy, payment, settlement, and delivery evidence; receipts are later Merkle-batched for public inclusion proofs. - commerce-verify [PAYABILITY UNKNOWN] $0.01
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.