Assay
Rank #56,908io.github.JasonCZMeng/assay
x402 service-quality oracle: check a service's paid-probe quality tier and score before paying it.
Assay is a Model Context Protocol (MCP) server published by JasonCZMeng. It ranks #56,908 of 137,138 servers tracked on MCP Toplist. Assay is listed on Official MCP, with 2 tracked versions. It was first listed on Jul 19, 2026 and most recently updated on Aug 5, 2026.
Ranks ahead of 80,230 of 137,138 servers on MCP Toplist.
Use Assay
No credentials or required configuration declared — add it to your MCP client and go.
claude mcp add assay -e "ASSAY_URL=<your ASSAY_URL>" -e "ASSAY_WALLET_KEY=<your ASSAY_WALLET_KEY>" -- npx -y assay-oracle-mcpReplace each placeholder with your own value before saving.
[mcp_servers.assay]
command = "npx"
args = ["-y", "assay-oracle-mcp"]
[mcp_servers.assay.env]
ASSAY_URL = "<your ASSAY_URL>"
ASSAY_WALLET_KEY = "<your ASSAY_WALLET_KEY>"Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"assay": {
"command": "npx",
"args": [
"-y",
"assay-oracle-mcp"
],
"env": {
"ASSAY_URL": "<your ASSAY_URL>",
"ASSAY_WALLET_KEY": "<your ASSAY_WALLET_KEY>"
}
}
}
}Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.
{
"mcpServers": {
"assay": {
"command": "npx",
"args": [
"-y",
"assay-oracle-mcp"
],
"env": {
"ASSAY_URL": "<your ASSAY_URL>",
"ASSAY_WALLET_KEY": "<your ASSAY_WALLET_KEY>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.
{
"servers": {
"assay": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"assay-oracle-mcp"
],
"env": {
"ASSAY_URL": "<your ASSAY_URL>",
"ASSAY_WALLET_KEY": "<your ASSAY_WALLET_KEY>"
}
}
}
}Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"assay": {
"command": "npx",
"args": [
"-y",
"assay-oracle-mcp"
],
"env": {
"ASSAY_URL": "<your ASSAY_URL>",
"ASSAY_WALLET_KEY": "<your ASSAY_WALLET_KEY>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"assay": {
"command": "npx",
"args": [
"-y",
"assay-oracle-mcp"
],
"env": {
"ASSAY_URL": "<your ASSAY_URL>",
"ASSAY_WALLET_KEY": "<your ASSAY_WALLET_KEY>"
}
}
}
}Replace each placeholder with your own value before saving.
Show your rank
Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.
[](https://mcptoplist.com/server/io.github.JasonCZMeng%2Fassay)<a href="https://mcptoplist.com/server/io.github.JasonCZMeng%2Fassay"><img src="https://mcptoplist.com/badge/io.github.JasonCZMeng%2Fassay.svg" alt="MCP Toplist: Top 50% of 137,138" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Listed on 1 registry
JasonCZMeng
Available versions (2)
| Version | Published |
|---|---|
| 0.2.0 | Aug 5, 2026 |
| 0.1.0 | Jul 19, 2026 |
Frequently asked questions
- Who maintains Assay?
- Assay is maintained by JasonCZMeng, which publishes 1 MCP server (2 total versions) tracked on MCP Toplist.
- Is Assay listed on the Official MCP Registry?
- Yes — Assay is listed on the Official MCP Registry.
- How many versions does Assay have?
- MCP Toplist tracks 2 versions of Assay, most recently published on Aug 5, 2026.
- Where can I find the source code for Assay?
- The source code for Assay is hosted at github.com/JasonCZMeng/assay.
Do you run this server?
Community projects list the MCP servers behind real agents and apps. Publish yours and this page will link to it.