API Tools
postfact-api-production.up.railway.app
Resolves ambiguous outcomes from side-effecting API actions to determine whether to retry.
ENDPOINT 1
https://postfact-api-production.up.railway.app/mcp
MCP server metadata
- Name
- POSTFACT
- Version
- 0.1.0
After an ambiguous failure of a side-effecting action, call resolve_outcome BEFORE retrying. UNKNOWN means do not assume success or failure.
Known tools 1
resolve_outcomeCall after a side-effecting API/tool action fails ambiguously and before retrying.
Inferred read-onlyCONNECT WITH APPROVAL
Client installation
Review this server and its permissions before adding it. Secret placeholders must be set locally.
Codex
~/.codex/config.toml
[mcp_servers.postfact]
url = "https://postfact-api-production.up.railway.app/mcp"
enabled = true
Claude Code
.mcp.json
{
"mcpServers": {
"postfact": {
"type": "http",
"url": "https://postfact-api-production.up.railway.app/mcp"
}
}
}
Claude Desktop
Settings → Connectors → Add custom connector
Name: postfact
Remote MCP URL: https://postfact-api-production.up.railway.app/mcp
Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.
Cursor
.cursor/mcp.json
{
"mcpServers": {
"postfact": {
"url": "https://postfact-api-production.up.railway.app/mcp"
}
}
}
Visual Studio Code
.vscode/mcp.json
Add to Visual Studio Code{
"servers": {
"postfact": {
"type": "http",
"url": "https://postfact-api-production.up.railway.app/mcp"
}
}
}
Generic MCP
Client-specific MCP configuration
{
"name": "postfact",
"transport": "streamable-http",
"url": "https://postfact-api-production.up.railway.app/mcp"
}
MCP Inspector
Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.
TRUST AND VERIFICATION EVIDENCE
Trust Data Available
BuiltWith Trust API v2 evidence for railway.app was fetched 2026-08-25T20:04:34.605Z.
railway.app is assessed as Trusted: Domain has an established technology history spanning over a year.
Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.