Connect SALT19 Agent Utility Grid and your agent gets 33 tools, among them agent-claim-output-verifier, agent-code-change-risk-gate, agent-decision-preflight. It answers at https://api.salt19.com/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 19 October 2026, succeeded.
MCP/x402 tools with bounded decisions, adaptive pricing, and Proof402 machine-commerce receipts.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
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. Price: $ Inputs: claim, evidence, context, required_standard, _salt19_operation_id, _x402_payment_signature |
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-chang Inputs: diff, constraints, context, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
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. Price: $0.49 via x402. Generate one _salt19_operation_id per intended purc Inputs: decision_type, target, constraints, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
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. Price: $0.75 via x402. G Inputs: goal, plan, constraints, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
base-contract-state | Inspect whether a Base address currently has deployed bytecode and return code size plus best-effort ERC-20 metadata. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility. Inputs: address, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
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. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility. Inputs: token_address, owner, spender, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
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. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibil Inputs: token_address, owner, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
base-transaction-status | Check current Base transaction receipt state and return PENDING, CONFIRMED_SUCCESS, or CONFIRMED_REVERTED with block and gas evidence. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility. Inputs: transaction_hash, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
base-wallet-balance | Read a wallet's live native ETH balance on Base at the latest block without an API key. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility. Inputs: address, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
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. Price: $0.01 via x402. Generate one _salt19_opera Inputs: request, payment_required, policy, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
commerce-receipt | 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 proof Inputs: request, payment_required, payment_payload, settlement, policy, delivery |
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 sta Inputs: request, payment_required, payment_payload, settlement, policy, delivery |
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. Inputs: package, version, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
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 compatibi Inputs: package, current_version, target_version, runtime, framework, constraints |
find-salt19-tool | FREE START-HERE ROUTER. Describe the fresh external fact, live state, developer intelligence, or bounded decision you need. Returns the best current SALT19 tool, live price, schema, alternatives, and exact x402 preflight next step. No payme Inputs: need, max_price_usd, prefer_fresh_state |
github-repo-facts | Return current public GitHub repository facts such as archive state, license, stars, forks, branch and latest push without the premium adoption decision. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x Inputs: repo, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
github-repo-preflight | 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. Price: Inputs: repo, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
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. Price: $0.05 via x402. Generate one _salt19_operation_id per intended Inputs: parameter_count_b, quantization_bits, vram_gb, runtime_overhead_ratio, _salt19_operation_id, _x402_payment_signature |
npm-package-facts | Return live npm registry facts for the latest or requested package version without the higher-priced vulnerability and adoption decision layer. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compat Inputs: package, version, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
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. Price: $0.04 via x402. Generate one _salt19_operati Inputs: package, version, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
nws-active-alerts | Return current U.S. National Weather Service active alerts for a state or territory as compact structured JSON. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility. Inputs: area, limit, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
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, integratio Inputs: repo, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
report-payment-capability | Free cooperative telemetry tool for reporting whether a client can use x402/Base/USDC or why it declined. Never submit private keys, payment signatures, or secret wallet material. Inputs: product, supports_x402, supported_networks, supported_assets, wallet_available, autonomous_spend_allowed |
report-x402-authorization-progress | Free cooperative telemetry for the local buyer authorization path. Report stage metadata only; never include private keys, seed phrases, raw signatures, or PAYMENT-SIGNATURE values. Inputs: handoff_id, stage, signer_available, signer_kind, sdk, error_code |
salt19-pricing | FREE catalog/pricing surface. Returns current discoverable SALT19 products, live x402 prices, schemas, and Fresh-State acquisition roles so an agent can budget before choosing a paid call. Inputs: max_price_usd, tier |
sec-company-facts | Return selected latest SEC XBRL company facts from EDGAR's live companyfacts feed with source dates and units. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility. Inputs: cik, concepts, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
sec-recent-filings | Return recent SEC EDGAR filings for a company CIK from the live SEC submissions feed, normalized for agent consumption. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility. Inputs: cik, limit, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
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. Price: $0.03 via x402. Generate one Inputs: url, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
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. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 com Inputs: url, max_chars, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
usgs-earthquakes | Query recent USGS earthquake events by lookback window and minimum magnitude and return compact live event state. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility. Inputs: hours, min_magnitude, limit, _salt19_operation_id, _x402_payment_signature, _salt19_handoff_id |
verify-decision-receipt | Free integrity lookup for a SALT19 decision receipt. verified=true proves the stored evidence still matches its recorded digest; it does not prove the underlying software is safe. _salt19_operation_id is recommended but optional for standar Inputs: id |
x402-authorization-handoff | Free handoff tool that generates a live PAYMENT-REQUIRED challenge for a concrete paid request, returns exact REST and MCP retry templates, and creates a correlation ID. It never signs or moves buyer funds. Inputs: product, arguments, operation_id, session_id |
x402-payment-preflight | Free buyer-side compatibility preflight. Returns the live SALT19 price, Base/USDC requirement, optional public wallet-balance sufficiency, and the exact next action without signing or moving funds. Inputs: product, supported_networks, supported_assets, wallet_address, max_price_usd, supports_x402 |
Every block below points at https://api.salt19.com/mcp. Pick your client and copy.
claude mcp add --transport http salt19-agent-utility-grid https://api.salt19.com/mcp
{
"mcpServers": {
"salt19-agent-utility-grid": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://api.salt19.com/mcp"]
}
}
}{
"mcpServers": {
"salt19-agent-utility-grid": {
"url": "https://api.salt19.com/mcp"
}
}
}{
"servers": {
"salt19-agent-utility-grid": {
"type": "http",
"url": "https://api.salt19.com/mcp"
}
}
}{
"context_servers": {
"salt19-agent-utility-grid": {
"url": "https://api.salt19.com/mcp"
}
}
}{
"mcpServers": {
"salt19-agent-utility-grid": {
"serverUrl": "https://api.salt19.com/mcp"
}
}
}{
"mcpServers": {
"salt19-agent-utility-grid": {
"url": "https://api.salt19.com/mcp"
}
}
}name: SALT19 Agent Utility Grid
version: 0.0.1
schema: v1
mcpServers:
- name: SALT19 Agent Utility Grid
type: streamable-http
url: https://api.salt19.com/mcp{
"mcpServers": {
"salt19-agent-utility-grid": {
"httpUrl": "https://api.salt19.com/mcp"
}
}
}{
"mcpServers": {
"salt19-agent-utility-grid": {
"type": "http",
"url": "https://api.salt19.com/mcp"
}
}
}{
"mcpServers": {
"salt19-agent-utility-grid": {
"url": "https://api.salt19.com/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fapi.salt19.com%2Fmcp&type=streamable_http&id=salt19-agent-utility-grid&name=SALT19%20Agent%20Utility%20Grid
It answered our last check on 19 October 2026 in 279 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
33, as returned by the server's own tools/list on 12 September 2026: agent-claim-output-verifier, agent-code-change-risk-gate, agent-decision-preflight, agent-plan-verifier, base-contract-state, base-token-allowance, base-token-balance, base-transaction-status, and 25 more.
It answered our last check on 19 October 2026 in 279 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://api.salt19.com/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.gabrielallit1. Endpoint host: api.salt19.com. ARD identifier: urn:air:io.github.gabrielallit1:mcp:salt19-agent-utility-grid.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.