SALT19 Agent Utility Grid
mcp remote · streamable-http · v0.5.1 · source: crawl
https://api.salt19.com/mcp
MCP/x402 tools with bounded decisions, adaptive pricing, and Proof402 machine-commerce receipts.
Works
100
Verified Oct 31, 2026 · p50 278 ms · p95 306 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'salt19-agent-utility-grid' |
| tools_listed | 15 | pass | 33 tools |
| schema_complete | 15 | pass | 31 of 33 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 278 ms |
| latency_p95 | 5 | pass | p95 306 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (33)
| Name | Description | Schema |
|---|---|---|
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 | typed |
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. | typed |
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 standa | typed |
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 optiona | typed |
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 b | typed |
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 op | typed |
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. | typed |
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 | typed |
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 recommend | typed |
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 x40 | typed |
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 | typed |
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 stan | typed |
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 recomm | typed |
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 x | typed |
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 | typed |
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, r | typed |
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: $0.50 via x402. Generate on | typed |
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/WAR | typed |
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 | typed |
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 M | incomplete |
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 | incomplete |
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, maintena | typed |
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, | typed |
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, p | typed |
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. Genera | typed |
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: $0.0 | typed |
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 depende | typed |
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 head | typed |
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 | typed |
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. | typed |
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. | typed |
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 | typed |
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. | typed |
Badge
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[](https://app.agent-xm.com/a/io-github-gabrielallit1-salt19-agent-utility-grid)
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