Other · Remote MCP server
pcrzero.com
Issue signed receipts for AI agent actions; verify any receipt offline - free, no account.
What the MCP Registry states
The entry as published to the official MCP Registry (read 2026-10-04), latest version.
- Registry name
com.pcrzero/mcp- Version
- 0.2.0
- Status
- Active
- Category
- other
- Transport
- Streamable HTTP, stdio (local process)
- Package
- npm
- Published
- 2026-08-13
- Updated
- 2026-08-13
- Publisher
- com.pcrzero
- Website
- pcrzero.com/mcp
- Repository
- github.com/Scytalex-LLC/pcrzero-mcp
- Source
- Registry API entry
Remote endpoints
| Transport | URL | Headers declared |
|---|---|---|
| Streamable HTTP | https://mcp.pcrzero.com/mcp | Authorization (secret) |
Packages
| Registry | Package | Version | Transport |
|---|---|---|---|
| npm | @scytalex-llc/pcrzero-mcp | 0.2.0 | stdio |
| npm | @scytalex-llc/pcrzero-mcp | 0.2.0 | HTTP |
How to connect pcrzero.com
pcrzero.com is a remote MCP server: there is nothing to install. Its endpoint is https://mcp.pcrzero.com/mcp, served over Streamable HTTP. In an assistant that accepts remote MCP servers (often under a setting named connectors, integrations or tools), add a new server and give it this URL; in a client configured by file, add it as a remote (HTTP) server with the same URL.
The registry entry declares an HTTP header for the connection: Authorization (secret). A secret header usually carries an API key or token issued by the service; clients that accept custom headers set it with the server's URL.
It can also run locally from a Node.js package published to the npm registry: @scytalex-llc/pcrzero-mcp version 0.2.0. It speaks MCP over stdio, so the client starts it as a program and talks to it through standard input and output. It needs Node.js; clients usually start it with npx — the usual command is npx -y @scytalex-llc/pcrzero-mcp@0.2.0. It reads the environment variable PCRZERO_API_KEY (secret); set it in the client's configuration for this server.
It can also run locally from a Node.js package published to the npm registry: @scytalex-llc/pcrzero-mcp version 0.2.0. The package starts a local server that speaks MCP over Streamable HTTP; the client then connects to it by URL. It reads these environment variables: PCRZERO_MCP_TRANSPORT, PCRZERO_MCP_AUTH_MODE and PCRZERO_API_KEY (secret); set them in the client's configuration for this server.
In the mcpServers JSON format that many desktop and editor MCP clients read, the entry looks like this (placeholders in angle brackets):
{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@scytalex-llc/pcrzero-mcp@0.2.0"
],
"env": {
"PCRZERO_API_KEY": "<secret>"
}
}
}
}Derived from the registry entry, not tested here. What the server does, and on what terms, is set by its publisher; check its repository or website before giving it access to your accounts or files. How to add an MCP server to an assistant · Before you connect
More other servers
| Server | Runs |
|---|---|
| Payer Api DirectoryDirectory of US clearinghouse/payer APIs (Availity, Optum, Waystar) with pricing & access signals. | Remote · HTTP |
| Payload ValidatorValidate JSON, YAML, XML and CSV with exact line/column errors and silent-corruption warnings. | Remote · HTTP |
| PayrollGross-to-net payroll estimates for hourly staff with common withholding assumptions. | Local · stdio |
| Paystack MCPAgent-callable Paystack for African commerce. Ten tools, integer-kobo money, NDPA-compliant. | Local · stdio |
| pdata Prediction MarketsLive prediction-market odds, volume and movers across 8 platforms. Read-only, no auth. | Remote · HTTP |
| PDMFácil — Portugal PlanningPortugal PDM zoning with official sources. One free query per account; no purchases. | Remote · HTTP |
| PDS Project AI MPP ConnectorRead, analyze, and safely edit Microsoft Project MPP files. | Remote · HTTP |
| PEAC Protocol: Signed interaction receiptsPortable signed records for agent, API, MCP, and cross-runtime interactions. | Local · stdio, HTTP |