SALT19 Agent Utility Grid
api.salt19.com
· api.salt19.com
MCP/x402 decision and verification utilities for autonomous software agents, paid in USDC on Base.
api.salt19.com via a single DNS TXT record to add the
verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
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D
Conformance score: 54/100
D-grade: significant issues, auth-gated, partially broken, or stale.
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agent-card.json changed within the last 7 days. We track these so downstream callers can react.
Activity (audit trail)
last 24h · 0 invocations Public aggregate · no PII recordedNothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.
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Endpoints
| Endpoint | Price | Currency |
|---|---|---|
https://api.salt19.com/v1/base-token-allowance
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https://api.salt19.com/v1/base-token-balance
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https://api.salt19.com/v1/base-transaction-status
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https://api.salt19.com/v1/base-wallet-balance
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https://api.salt19.com/v1/base-contract-state
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https://api.salt19.com/v1/sec-recent-filings
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https://api.salt19.com/v1/sec-company-facts
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https://api.salt19.com/v1/nws-active-alerts
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https://api.salt19.com/v1/usgs-earthquakes
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https://api.salt19.com/v1/url-to-llm-markdown
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https://api.salt19.com/v1/npm-package-facts
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https://api.salt19.com/v1/github-repo-facts
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https://api.salt19.com/v1/agent-code-change-risk-gate
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https://api.salt19.com/v1/agent-plan-verifier
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https://api.salt19.com/v1/dependency-go-no-go
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https://api.salt19.com/v1/github-repo-preflight
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https://api.salt19.com/v1/model-memory-fit
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https://api.salt19.com/v1/npm-package-intel
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https://api.salt19.com/v1/url-http-preflight
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https://api.salt19.com/v1/agent-claim-output-verifier
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https://api.salt19.com/v1/repo-adoption-go-no-go
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https://api.salt19.com/v1/dependency-upgrade-go-no-go
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https://api.salt19.com/v1/agent-decision-preflight
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https://api.salt19.com/v1/commerce-decision
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https://api.salt19.com/v1/commerce-receipt
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https://api.salt19.com/v1/commerce-verify
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| Agent card | https://api.salt19.com/.well-known/agent-card.json |
| Provider | https://api.salt19.com |
| Docs | https://api.salt19.com/tools |
Skills · 26 declared · mapped to canonical taxonomy
Discover and route to SALT19's base-token-allowance capability. Read a live ERC-20 allowance on Base for an owner/spender pair without an API key. Returns the c…
Discover and route to SALT19's base-token-balance capability. Read a live ERC-20 token balance on Base and return raw units plus best-effort token decimals/symb…
Discover and route to SALT19's base-transaction-status capability. Check current Base transaction receipt state and return PENDING, CONFIRMED_SUCCESS, or CONFIR…
Discover and route to SALT19's base-wallet-balance capability. Read a wallet's live native ETH balance on Base at the latest block without an API key.
Discover and route to SALT19's base-contract-state capability. Inspect whether a Base address currently has deployed bytecode and return code size plus best-eff…
Discover and route to SALT19's sec-recent-filings capability. Return recent SEC EDGAR filings for a company CIK from the live SEC submissions feed, normalized f…
Discover and route to SALT19's sec-company-facts capability. Return selected latest SEC XBRL company facts from EDGAR's live companyfacts feed with source dates…
Discover and route to SALT19's nws-active-alerts capability. Return current U.S. National Weather Service active alerts for a state or territory as compact stru…
Discover and route to SALT19's usgs-earthquakes capability. Query recent USGS earthquake events by lookback window and minimum magnitude and return compact live…
Discover and route to SALT19's url-to-llm-markdown capability. Fetch a public web page, remove scripts/styles/navigation noise, and return bounded LLM-friendly …
Discover and route to SALT19's npm-package-facts capability. Return live npm registry facts for the latest or requested package version without the higher-price…
Discover and route to SALT19's github-repo-facts capability. Return current public GitHub repository facts such as archive state, license, stars, forks, branch …
Discover and route to SALT19's agent-code-change-risk-gate capability. Static pre-merge risk gate for autonomous code changes: inspect a supplied unified diff f…
Discover and route to SALT19's agent-decision-preflight capability. Before an autonomous coding agent installs or adopts software, return a bounded GO, WARN, or…
Discover and route to SALT19's dependency-upgrade-go-no-go capability. Compare current and target npm versions and return GO/WARN/BLOCK plus UPGRADE/DEFER/BLOCK…
Discover and route to SALT19's github-repo-preflight capability. GitHub repository due diligence for coding agents: evaluate whether a public or open-source rep…
Discover and route to SALT19's model-memory-fit capability. Can this AI model run on my graphics card? Estimate model memory requirements and check whether a qu…
Discover and route to SALT19's npm-package-intel capability. Check whether an npm package is deprecated or vulnerable before installing it, including vulnerabil…
Discover and route to SALT19's url-http-preflight capability. Inspect a URL before an autonomous agent calls it, and preflight or verify a website or external A…
Discover and route to SALT19's agent-plan-verifier capability. Verify an autonomous agent plan before execution for missing preconditions, destructive steps, un…
Discover and route to SALT19's dependency-go-no-go capability. Dependency approval decision for coding agents: decide whether an npm dependency or package is sa…
Discover and route to SALT19's agent-claim-output-verifier capability. Map an autonomous agent claim or output to supplied evidence and return SUPPORTED, PARTIA…
Discover and route to SALT19's repo-adoption-go-no-go capability. Repository adoption decision for autonomous coding agents using public GitHub maintenance, arc…
Discover and route to SALT19's commerce-decision capability. Before an autonomous agent pays an x402 challenge, bind the request, accepted payment offer, and ma…
Discover and route to SALT19's commerce-receipt capability. Verify an x402 commercial state and persist a signed Ed25519 Proof402 receipt whose Commerce State R…
Discover and route to SALT19's commerce-verify capability. Verify that an x402 v2 payment payload, settlement evidence, original request, accepted offer, spendi…
Health · last 20 probes
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Audit-grade evidence bundle
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Raw agent card JSON
{
"_source": "x402_list",
"slug": "salt19-agent-utility-grid",
"endpoint_count": 14,
"attribution": "Data: x402-list.com (CC BY 4.0)"
}