# SML Provider Trust (MCP)

> Verify a provider or source before an AI agent trusts or uses it. Public, read-only, evidence-first MCP server; unknown stays unknown.

Remote MCP endpoint: https://provider-trust-mcp.onrender.com/mcp (streamable HTTP, no account or API key).

## Paid tools (x402 v2, USDC on Base)

- verify_provider — $0.001: PAID tool ($0.001 USDC via x402, Base). Verify a provider or source before an AI agent trusts or uses it. Returns live evidence only; unknown stays unknown. Send the x402 PAYMENT-SIGNATURE header on the /mcp request; without payment the call returns the canonical x402 challenge (HTTP 402, amount 1000 = $0.001 USDC, payTo of the canonical SML receiver). Settlement is performed by the canonical CANON endpoint on SqueezeOS; this MCP never holds funds and never pays on your behalf.
- canon_registry_bulk_lookup — $0.01: PAID tool ($0.01 USDC via x402, Base). Resolve up to 100 artifact freshness records in one call against live registries and cryptographically verified CANON publisher manifests: detects stale mirrors, superseded artifacts, and publisher/registry conflicts. Send the x402 PAYMENT-SIGNATURE header on the /mcp request; without payment the call returns the canonical x402 challenge (HTTP 402, amount 10000 = $0.01 USDC, payTo of the CANON endpoint). Settlement is performed by the canonical CANON endpoint on SqueezeOS; this MCP never holds funds and never pays on your behalf.

Call the tool; an unpaid call returns HTTP 402 with a PAYMENT-REQUIRED challenge. Retry with PAYMENT-SIGNATURE; the receipt comes back in PAYMENT-RESPONSE.

## Free tools

- compare_providers: Compare 2-5 providers using live evidence. No made-up score or winner.
- check_identity: Check live provider identity evidence.
- check_payment: Check live x402 payment readiness and real settlement evidence.
- check_history: Check recent evidence-backed provider history. Traffic volume is context only and is never presented as buyers, trust, or reputation.
- check_status: Check whether the Provider Trust backend is live.

## Discovery

- https://provider-trust-mcp.onrender.com/.well-known/x402
- Directory of all SCRIPTMASTERLABS x402 services: https://scriptmasterlabs.com/x402-services