assay

Name: assay
Author: robertoyanguas-ops

MCP serverMCP

A2A & MCP Pre-Flight Security: SHA-256 tool schema rug-pull detection and liveness grades.

by robertoyanguas-opsv0.4.2

Observed by Wellknown

Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability267/267 checks ok

30 days agotoday

Endpoints

https://assay-207908449630.us-central1.run.app/mcpmcp streamable http · checked on a schedule

Registry facts

Not distributed through a package registry we index.

when	check	result	http	latency	detail
50 min ago	mcp initialize	ok	200	119 ms	server assay 0.7.31 · protocol 2025-06-18 · 4 tools
2 h ago	mcp initialize	ok	200	113 ms	server assay 0.7.31 · protocol 2025-06-18 · 4 tools
3 h ago	mcp initialize	ok	200	111 ms	server assay 0.7.31 · protocol 2025-06-18 · 4 tools
4 h ago	mcp initialize	ok	200	110 ms	server assay 0.7.31 · protocol 2025-06-18 · 4 tools
5 h ago	mcp initialize	ok	200	114 ms	server assay 0.7.31 · protocol 2025-06-18 · 4 tools
6 h ago	mcp initialize	ok	200	162 ms	server assay 0.7.31 · protocol 2025-06-18 · 4 tools
7 h ago	mcp initialize	ok	200	138 ms	server assay 0.7.31 · protocol 2025-06-18 · 4 tools
8 h ago

Tools observed via MCP handshake

assay_preflight — Gate a remote MCP, A2A, or x402 endpoint before calling or paying it by probing live JSON-RPC reachability, hashing tools/list (SHA-256), and scanning for promp
assay_probe — Register a new remote MCP, A2A, or x402 endpoint or refresh its public Assay Observatory dossier by running a live HTTP, agent-card, and JSON-RPC tools/list ins
assay_verify_delivery — Audit a paid x402 or A2A provider after payment to confirm delivery or prove an SLA breach with an HMAC-SHA256 signed receipt. Passing status_code >= 500 forces
assay_get_ledger_policy — Retrieve historical conformance observations and manage pinned SHA-256 tools/list policy hashes in the Assay ledger for a target endpoint. When expected_tools_h

Declared by sources

Attributed to the source that supplied each field. Treated as claims, not facts.

No long description beyond the summary.

kind Official MCP Registry

name Official MCP Registry

summary Official MCP Registry

version Official MCP Registry

description Official MCP Registry

publisherName Official MCP Registry

Derived by Wellknown

Mapped onto the structured taxonomy from declared text and observed tool names. Confidence shown for derived entries.

Provenance

Every source is kept verbatim. Field changes are logged as events.

Official MCP Registryio.github.robertoyanguas-ops/assay

first seen 13 d ago · fetched 3 d agoopen ↗

Field history (6 recent events)

11 d ago · claimed · ownership → {"method":"well_known_file","target":"assay-207908449630.us-central1.run.app"}
13 d ago · declared · summary → "A2A & MCP Pre-Flight Security: SHA-256 tool schema rug-pull detection and liveness grades."
13 d ago · declared · description → "A2A & MCP Pre-Flight Security: SHA-256 tool schema rug-pull detection and liveness grades."
13 d ago · declared · publisherName → "robertoyanguas-ops"
13 d ago · declared · version → "0.4.2"
13 d ago · declared · protocols → ["mcp"]