# Esper Docs

> Documentation for configuring Esper actions, entities, mitigations, policies, integrations, and operator workflows.

## Docs

- [Actions](https://docs.esperr.com/actions.md): Actions name request behaviors that policies can reference.
- [API Keys](https://docs.esperr.com/api-keys.md): Credentials that allow sending systems to authenticate with a tenant.
- [Audit](https://docs.esperr.com/audit.md): Tenant-scoped operator history and change tracking.
- [Authorization](https://docs.esperr.com/authorization.md): Who can access Esper and which workspace they're allowed to operate — covering operator authentication, memberships, and bearer tokens.
- [Beacon Server](https://docs.esperr.com/beacon-server.md): Your traffic collection point in Esper — receives and processes events from your applications and infrastructure for real-time analysis and policy enforcement.
- [Actions](https://docs.esperr.com/cli/action.md): Manage the semantic traffic behaviors that policies evaluate.
- [Authentication](https://docs.esperr.com/cli/authentication.md): Operator login and credential management for the Esper CLI.
- [Configuration](https://docs.esperr.com/cli/configuration.md): Local workspace and credential management for the Esper CLI.
- [Entities](https://docs.esperr.com/cli/entity.md): Establish identity semantics over encoded traffic.
- [Hybrid Runtime](https://docs.esperr.com/cli/hybrid.md): Commands for managing hybrid traffic capture, enforcement, and mitigation synchronization.
- [Esper CLI](https://docs.esperr.com/cli/index.md): Command-line access to Esper's operator workflows.
- [Keys](https://docs.esperr.com/cli/keys.md): Commands for listing tenant API keys after operator authentication.
- [Mitigations](https://docs.esperr.com/cli/mitigation.md): Define response behaviors when policies match.
- [Policies](https://docs.esperr.com/cli/policy.md): Compose actions, entities, and mitigations into evaluation rules.
- [Results & Analytics](https://docs.esperr.com/cli/results.md): Commands for viewing aggregated policy performance metrics and exporting analytics data.
- [Entities](https://docs.esperr.com/entities.md): Entities define how Esper groups related requests for policy evaluation.
- [Field Reference](https://docs.esperr.com/field-reference.md): Non-technical guide to the request fields you can reference in the builder.
- [Body Data](https://docs.esperr.com/field-reference/body-data.md): Analyzing request body content in Esper policies.
- [Client IP](https://docs.esperr.com/field-reference/client-ip.md): Using IP addresses for traffic analysis in Esper.
- [Cookies](https://docs.esperr.com/field-reference/cookies.md): Managing cookie-based policies in Esper.
- [Headers](https://docs.esperr.com/field-reference/headers.md): Using HTTP headers in Esper policies.
- [Query Parameters](https://docs.esperr.com/field-reference/query-parameters.md): Working with URL query parameters in Esper policies.
- [Referrer](https://docs.esperr.com/field-reference/referrer.md): Using referrer information in Esper policies.
- [Request Method](https://docs.esperr.com/field-reference/request-method.md): Understanding HTTP request methods in Esper policies.
- [Request Path](https://docs.esperr.com/field-reference/request-path.md): Working with URL paths in Esper policies.
- [Timestamp](https://docs.esperr.com/field-reference/timestamp.md): Working with time-based fields in Esper policies.
- [User Agent](https://docs.esperr.com/field-reference/user-agent.md): Understanding and filtering by User-Agent strings in Esper.
- [Esper Docs](https://docs.esperr.com/index.md): Documentation for configuring Esper actions, entities, mitigations, policies, integrations, and operator workflows.
- [AWS Lambda](https://docs.esperr.com/integrations/aws.md): Use the Lambda and API Gateway recipe when your application traffic already enters through API Gateway and Lambda — putting Esper at an AWS serverless boundary.
- [Cloudflare Workers](https://docs.esperr.com/integrations/cloudflare.md): Send Cloudflare Worker request context to Esper and apply the returned runtime decision.
- [Heroku](https://docs.esperr.com/integrations/heroku.md): Run Esper in a simple app-process proxy when you want a straightforward deployment model and minimal platform ceremony.
- [Integrations](https://docs.esperr.com/integrations/index.md): Configure Esper at an application or edge boundary using Workers, proxies, Lambdas, or on-edge runtimes.
- [Vercel](https://docs.esperr.com/integrations/vercel.md): Run Esper in front of a Vercel-served application — use this recipe when your app already runs on Vercel and you want Esper checks at the serverless boundary.
- [Overview](https://docs.esperr.com/intro.md): Esper evaluates request context with tenant-defined actions, entities, mitigations, and policies.
- [Mitigation](https://docs.esperr.com/mitigation.md): Mitigations are the responses your policies can trigger — monitor, challenge, or block — reusable across policies and versionable over time.
- [Mitigation Server](https://docs.esperr.com/mitigation-server.md): Esper's runtime distribution layer for active mitigation decisions — makes active mitigations available to downstream services and Hybrid capture agents.
- [Anubis Challenge](https://docs.esperr.com/mitigation/anubis.md): Esper-managed proof-of-work challenge for customers who want to avoid a third-party CAPTCHA provider when a mitigation resolves to Challenge.
- [Turnstile Challenge](https://docs.esperr.com/mitigation/turnstile.md): Managed challenge option that hands off human verification to Cloudflare Turnstile when a mitigation resolves to Challenge.
- [Policies](https://docs.esperr.com/policies.md): Policies combine expressions, action requirements, entity bindings, mitigations, and windows into runtime rules.
- [Quickstart](https://docs.esperr.com/quickstart.md): Configure authorization, tenant setup, API keys, and a first policy in the Esper console.
- [Results](https://docs.esperr.com/results.md): Policy-attributed outcomes and operational review — the results page is centered on policies.
- [SDKs Overview](https://docs.esperr.com/sdks/overview.md): Official SDKs for calling Esper decision APIs from Node, Python, or Rust.
- [Python SDK](https://docs.esperr.com/sdks/python.md): The official Python SDK for Esper traffic protection and mitigation.
- [Rust SDK](https://docs.esperr.com/sdks/rust.md): The official Rust SDK for Esper traffic protection and mitigation.
- [TypeScript/JavaScript SDK](https://docs.esperr.com/sdks/typescript.md): The official lightweight TypeScript/JavaScript client library for the Esper traffic protection API.
- [Tenants](https://docs.esperr.com/tenants.md): Tenant workspace configuration and lifecycle management.

## OpenAPI Specs

- [openapi](https://docs.esperr.com/api-reference/openapi.json)