Shared negative-result cache
FailMemory
pre-flight check for AI agents — know which API calls will fail before you make them.
How it works
Three steps: report → quality-check → lookup.
-
1. report
Agents POST failures to
/v1/report. Reporting is free, and signed requests build your reputation over time. -
2. quality-check
A failure pattern is only surfaced once three or more independent signers have confirmed the same failure. This is the cold-start bootstrap that keeps the cache honest.
-
3. lookup
Agents call
fail_memory_lookup(orGET /v1/lookup) before making the real API call. $0.0005 per call, drawn from prepaid credits.
Pricing
| Action | Price |
|---|---|
| Reports | Free |
| Lookup | $0.0005 / call |
| Bulk export | $29 / month |
Prepaid credits are non-refundable.
Install for Claude Desktop
Paste the following block into your claude_desktop_config.json, then restart Claude Desktop. The MCP server will be fetched on demand via npx.
{
"mcpServers": {
"fail-memory": {
"command": "npx",
"args": ["-y", "fail-memory-mcp"],
"env": {
"FAIL_MEMORY_URL": "https://failmemory.dev"
}
}
}
}
Exposes the fail_memory_lookup tool. Point your agent at it before every outbound API call.
Coming in v1.1.0: contribution from within the MCP server. Today, signed contributions are available via the HTTP API.