io.github.GabrielAllit1Published by GitHub account GabrielAllit1v0.5.1Updated Oct 24, 2026
MCP/x402 tools with bounded decisions, adaptive pricing, and Proof402 machine-commerce receipts.
Gives an assistant live external data lookups and bounded GO/WARN/BLOCK decision tools, most of them paid per call via x402.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.github.GabrielAllit1%2Fsalt19-agent-utility-grid/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Add this to your client's mcpServers config.
{
"mcpServers": {
"salt19-agent-utility-grid": {
"type": "http",
"url": "https://api.salt19.com/mcp"
}
}
}Find the Best 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 payment is required for routing.
needrequiredmax_price_usdprefer_fresh_stateSALT19 Live 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.
tiermax_price_usdBase 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.
addressrequired_salt19_handoff_id_salt19_operation_id_x402_payment_signatureBase 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.
ownerrequiredspenderrequiredtoken_addressrequired_salt19_handoff_id_salt19_operation_id_x402_payment_signatureBase 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 compatibility.
ownerrequiredtoken_addressrequired_salt19_handoff_id_salt19_operation_id_x402_payment_signatureBase 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.
transaction_hashrequired_salt19_handoff_id_salt19_operation_id_x402_payment_signatureBase 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.
addressrequired_salt19_handoff_id_salt19_operation_id_x402_payment_signatureGithub 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 x402 compatibility.
reporequired_salt19_handoff_id_salt19_operation_id_x402_payment_signatureNpm 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 compatibility.
packagerequiredversion_salt19_handoff_id_salt19_operation_id_x402_payment_signatureNws 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.
arearequiredlimit_salt19_handoff_id_salt19_operation_id_x402_payment_signatureSec 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.
cikrequiredconcepts_salt19_handoff_id_salt19_operation_id_x402_payment_signatureSec 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.
cikrequiredlimit_salt19_handoff_id_salt19_operation_id_x402_payment_signatureUrl 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 compatibility.
urlrequiredmax_chars_salt19_handoff_id_salt19_operation_id_x402_payment_signatureUsgs 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.
hourslimitmin_magnitude_salt19_handoff_id_salt19_operation_id_x402_payment_signatureAgent 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: $0.50 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once.
claimrequiredcontextevidencerequired_standard_salt19_handoff_id_salt19_operation_id_x402_payment_signatureAgent 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. Price: $1.25 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
diffrequiredcontextconstraints_salt19_handoff_id_salt19_operation_id_x402_payment_signatureAgent 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 one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
targetrequiredconstraintsdecision_typerequired_salt19_handoff_id_salt19_operation_id_x402_payment_signatureAgent 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. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
goalrequiredplanrequiredconstraints_salt19_handoff_id_salt19_operation_id_x402_payment_signatureCommerce 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: $0.02 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
policyrequiredrequestrequiredpayment_requiredrequired_salt19_handoff_id_salt19_operation_id_x402_payment_signatureCommerce 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 proofs. Price: $0.05 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
policyrequestrequireddeliveryrequiredsettlementrequiredpayment_payloadrequiredpayment_requiredrequiredexpected_delivery_salt19_handoff_id_salt19_operation_id_x402_payment_signaturetarget_salt19_operation_idCommerce 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. Price: $0.03 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
policyrequestrequireddeliveryrequiredsettlementrequiredpayment_payloadrequiredpayment_requiredrequiredexpected_delivery_salt19_handoff_id_salt19_operation_id_x402_payment_signaturetarget_salt19_operation_idDependency 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. Price: $0.25 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
packagerequiredversion_salt19_handoff_id_salt19_operation_id_x402_payment_signatureDependency 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. Price: $0.20 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once.
packagerequiredruntimeframeworkconstraintstarget_versionrequiredcurrent_versionrequired_salt19_handoff_id_salt19_operation_id_x402_payment_signatureGithub 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: $0.10 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
reporequired_salt19_handoff_id_salt19_operation_id_x402_payment_signatureModel 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 purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
vram_gbrequiredparameter_count_brequiredquantization_bitsrequired_salt19_handoff_id_salt19_operation_idruntime_overhead_ratio_x402_payment_signatureNpm 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: $0.05 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
packagerequiredversion_salt19_handoff_id_salt19_operation_id_x402_payment_signatureRepo 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. Price: $0.35 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
reporequired_salt19_handoff_id_salt19_operation_id_x402_payment_signatureUrl 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 _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
urlrequired_salt19_handoff_id_salt19_operation_id_x402_payment_signatureVerify SALT19 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 standard x402 compatibility.
idrequiredSALT19 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.
productrequiredmax_price_usdsupports_x402wallet_addresssupported_assetssupported_networksautonomous_spend_allowedReport x402 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.
productsession_idsupports_x402decline_reasonrequiredmax_purchase_usdsupported_assetswallet_availablesupported_networksautonomous_spend_allowedSALT19 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.
productrequiredargumentsrequiredsession_idoperation_idReport 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.
sdkstagerequirederror_codehandoff_idrequiredsigner_kindclient_timestampsigner_available83% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.