Parallax Evaluation API

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.

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/parallax-evaluation-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

API entry from apis.yml

apis.yml Raw ↑
name: Parallax Evaluation API
description: '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.'
humanURL: https://github.com/agent-defense/parallax
baseURL: http://{host}:{port}
tags:
- Runtime Security
- AI Agent Security
- Open-Source
- Prompt Injection
- Policy Enforcement
tags_raw:
- Runtime Security
- AI Agent Security
- Open Source
- Prompt Injection
- Policy Enforcement
properties:
- type: Documentation
  url: https://github.com/agent-defense/parallax/tree/main/docs
- type: APIReference
  url: https://github.com/agent-defense/parallax/blob/main/docs/integrations/generic.md
- type: GettingStarted
  url: https://github.com/agent-defense/parallax#-quick-start
- type: SourceCode
  url: https://github.com/agent-defense/parallax
- type: Roadmap
  url: https://github.com/agent-defense/parallax#-roadmap
- type: Webhooks
  url: asyncapi/scalarr-parallax-webhooks.yml
- type: CLI
  url: cli/scalarr-cli.yml