# Parallax Evaluation API

**Canonical:** https://apis.io/apis/scalarr/parallax-evaluation-api/  
**Provider:** Scalarr — https://apis.io/providers/scalarr/  
**Base URL:** http://{host}:{port}  
**Documentation:** https://github.com/agent-defense/parallax

Parallax Evaluation API is one of 2 APIs that [Scalarr](https://apis.io/providers/scalarr/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Runtime Security, AI Agent Security, Open-Source, Prompt Injection, and Policy Enforcement. The published artifact set on APIs.io includes API documentation, an API reference, and a getting-started guide.

Self-hosted HTTP API of Parallax, the Apache-2.0 runtime security engine Scalarr publishes for AI agents. Two endpoints: POST /evaluate takes a lifecycle event (message.before, tool.before, tool.after, params.before) with optional tool_name, tool_args, tool_result, message_text, model and params, runs it through a cost-ordered chain of regex, keyword-pattern, Sigma, CEL and SQL evaluators, and returns a decision (block, redact, detect or allow) with the reasons that matched and the elapsed evaluation time; GET /health returns status, mode, evaluator count and version. A proxy mode fronts the Anthropic Messages API and evaluates traffic transparently. The server ships with no authentication and binds to 127.0.0.1:9920 by default.

## Machine-readable artifacts (8)

- **Documentation** — https://github.com/agent-defense/parallax/tree/main/docs
- **APIReference** — https://github.com/agent-defense/parallax/blob/main/docs/integrations/generic.md
- **GettingStarted** — https://github.com/agent-defense/parallax#-quick-start
- **SourceCode** — https://github.com/agent-defense/parallax
- **Roadmap** — https://github.com/agent-defense/parallax#-roadmap
- **Webhooks** — https://raw.githubusercontent.com/api-evangelist/scalarr/refs/heads/main/asyncapi/scalarr-parallax-webhooks.yml
- **CLI** — https://raw.githubusercontent.com/api-evangelist/scalarr/refs/heads/main/cli/scalarr-cli.yml
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/scalarr/refs/heads/main/apis.yml

## Other Scalarr APIs (1)

- [AI EdgeLabs Portal API](https://apis.io/apis/scalarr/ai-edgelabs-portal-api/)

## Tags

Runtime Security, AI Agent Security, Open-Source, Prompt Injection, Policy Enforcement

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/scalarr/parallax-evaluation-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/scalarr/.