# Telnyx Compute: Functions — Documentation Index
> Functions documentation within the Compute section of the Telnyx developer docs (https://developers.telnyx.com).
> This file: https://developers.telnyx.com/docs/development/llms/compute-functions-llms-txt · Root index: https://developers.telnyx.com/llms.txt

## Overview

- [Functions](https://developers.telnyx.com/docs/edge-compute/overview.md): Functions are the compute primitive of Telnyx Edge Compute: an HTTP server in a container, wired to KV, stateful actors, object storage, and the Telnyx API.

## Get Started

- [Quickstart](https://developers.telnyx.com/docs/edge-compute/quickstart.md): Install the CLI, scaffold a function in the language of your choice, ship it, and curl the live URL — about five minutes.

## Best Practices

- [Best Practices](https://developers.telnyx.com/docs/edge-compute/best-practices.md): Production patterns for Edge Compute functions: configuration, connection reuse, KV caching, state placement, error handling, and observability.

## Guides

- [AI Assistants and Edge Compute](https://developers.telnyx.com/docs/edge-compute/guides/ai-assistant-backend.md): Use a Telnyx Edge Compute function as the backend for dynamic variables and webhook tool calls — no separate server required.

## Local Development

- [Local Development](https://developers.telnyx.com/docs/edge-compute/development.md): Run and test Edge Compute functions locally with each language's native tooling. Standalone functions need no emulator, only your usual runtime and curl.

## Configuration

- [Configuration](https://developers.telnyx.com/docs/edge-compute/configuration.md): Reference for the Edge Compute TOML manifest, func.toml or telnyx.toml, covering the identity block, environment variables, and every binding declaration.
- [Environment Variables](https://developers.telnyx.com/docs/edge-compute/configuration/environment-variables.md): Configure Edge Compute functions with ordinary environment variables declared in func.toml or injected by the platform, from secrets, and from bindings.
- [Secrets](https://developers.telnyx.com/docs/edge-compute/configuration/secrets.md): Organization-scoped values for sensitive data, managed with telnyx-edge secrets. Every function reads them as environment variables or via typed bindings.

## CI/CD

- [CI/CD](https://developers.telnyx.com/docs/edge-compute/deploy.md): Deploy Edge Compute functions from CI: install telnyx-edge, authenticate with an API key, and ship, with GitHub Actions, GitLab, and CircleCI recipes.
- [Routes & Domains](https://developers.telnyx.com/docs/edge-compute/configuration/routing.md): Every deployed Edge Compute function gets a public HTTPS URL at telnyxcompute.com. HTTP requests to that URL are the only way to invoke a function.
- [Versions & Rollback](https://developers.telnyx.com/docs/edge-compute/configuration/versions.md): Every telnyx-edge ship produces an immutable revision. Use revisions list to see deploy history and rollback to instantly retarget traffic to a prior revision.

## Custom Domains

- [Overview](https://developers.telnyx.com/docs/edge-compute/custom-domains.md): Serve Edge Compute functions from your own domain with customer-provided TLS certificates.
- [Quick Start](https://developers.telnyx.com/docs/edge-compute/custom-domains/quick-start.md): Declare a custom domain in telnyx.toml, register it with the CLI, and route traffic from your own hostname to an Edge Compute function.
- [API Reference](https://developers.telnyx.com/docs/edge-compute/custom-domains/api-reference.md): REST endpoints under /v2/compute/domains for creating, listing, verifying, and deleting custom domains bound to Edge Compute functions.

## Runtime APIs

- [Overview](https://developers.telnyx.com/docs/edge-compute/runtime.md): What Edge Compute provides at runtime: the container execution environment, the per-language entrypoint contract, and bindings to platform resources.
- [Execution Model](https://developers.telnyx.com/docs/edge-compute/runtime/execution-model.md): Functions run as Linux containers scaled with traffic: cold starts, warm reuse, scale to zero, request budget, HTTP-only trigger, no durable memory.
- [HTTP Handler](https://developers.telnyx.com/docs/edge-compute/runtime/http-handler.md): The per-language entrypoint contract — which file the platform runs, the signature you implement, who owns the HTTP server, and who answers health probes.
- [Overview](https://developers.telnyx.com/docs/edge-compute/runtime/bindings.md): Typed, pre-authenticated handles to platform resources, resolved by the runtime from a manifest declaration.
- [Overview](https://developers.telnyx.com/docs/edge-compute/telnyx-api.md): Call the Telnyx API from Edge Compute through a pre-authenticated binding — no API keys in your code.
- [Quick Start](https://developers.telnyx.com/docs/edge-compute/telnyx-api/quick-start.md): Declare, type, and ship a function that returns your Telnyx account balance through the binding.
- [API Reference](https://developers.telnyx.com/docs/edge-compute/telnyx-api/api-reference.md): The Telnyx API binding is a pre-authenticated client handle — discover its resources and methods through generated types or the client method reference.
- [Receiving Messages](https://developers.telnyx.com/docs/edge-compute/telnyx-api/receiving-messages.md): Handle inbound SMS on Edge Compute — your function is the messaging profile webhook, and replies go out on-net with no 10DLC campaign.
- [Handling Calls](https://developers.telnyx.com/docs/edge-compute/telnyx-api/handling-calls.md): Answer inbound calls on Edge Compute via Call Control — your function is the Call Control app webhook; answer the call and play audio.
- [Overview](https://developers.telnyx.com/docs/edge-compute/rate-limiting.md): Enforce per-key request budgets in bundled Edge Compute functions with a platform-managed rate limiter binding.
- [Quick Start](https://developers.telnyx.com/docs/edge-compute/rate-limiting/quick-start.md): Add a rate limiter binding to an Edge Compute function, deploy it, and verify its behavior.
- [API Reference](https://developers.telnyx.com/docs/edge-compute/rate-limiting/api-reference.md): Check a Telnyx Edge Compute rate limiter binding and interpret its result.

## Observability

- [Overview](https://developers.telnyx.com/docs/edge-compute/observability.md): Observe Edge Compute functions with logs, metrics, deployment history, health checks, and CLI diagnostics.
- [Logs](https://developers.telnyx.com/docs/edge-compute/observability/logs.md): Read runtime output and platform-generated invocation logs for Edge Compute functions.
- [Log export](https://developers.telnyx.com/docs/edge-compute/observability/log-export.md): Push a function's runtime and invocation logs to an external OTLP endpoint as they happen.
- [Metrics](https://developers.telnyx.com/docs/edge-compute/observability/metrics.md): View request, latency, CPU, and memory metrics for Edge Compute functions.
- [Deployment history](https://developers.telnyx.com/docs/edge-compute/observability/deployment-history.md): Inspect the latest ship outcome and historical Edge Compute function deployments.
- [Health checks](https://developers.telnyx.com/docs/edge-compute/observability/health-checks.md): Implement and externally probe an application-level health route for an Edge Compute function.
- [API Reference](https://developers.telnyx.com/docs/edge-compute/observability/api-reference.md): REST endpoints under /v2/compute/funcs/{id} for fetching runtime logs, invocation records, and metrics for an Edge Compute function.

## CLI

- [CLI Reference](https://developers.telnyx.com/docs/edge-compute/reference/cli.md): Every telnyx-edge CLI command in v0.5.3: install, authenticate, scaffold, deploy, and manage revisions, secrets, bindings, storage, and actor types.

## Platform

- [Pricing](https://developers.telnyx.com/docs/edge-compute/platform/pricing.md): Telnyx Edge Compute functions bill on two meters — requests and CPU time — with a monthly free tier of 3.6M requests and 36M CPU-milliseconds.
- [Limits](https://developers.telnyx.com/docs/edge-compute/platform/limits.md): Resource limits for Telnyx Edge Compute functions: request timeout, memory, body size, code size, deployment rate, and KV storage caps.

## API Reference (Functions)

### functions

- [Get function logs](https://developers.telnyx.com/api-reference/functions/get-function-logs.md): Returns logs oldest first. `type=runtime` (default) returns function stdout/stderr. `type=invocations` returns one platform-generated record per HTTP request s…
- [Get log export configuration](https://developers.telnyx.com/api-reference/functions/get-log-export-configuration.md): Returns the function's configured log export destination and which log types are exported. Headers are never returned. Returns 404 (error code 10005) when no d…
- [Configure log export destination](https://developers.telnyx.com/api-reference/functions/configure-log-export-destination.md): Configures the external OTLP endpoint a function's runtime and/or invocation logs are pushed to as they happen. This operation is a **full replace, not a patch…
- [Delete log export configuration](https://developers.telnyx.com/api-reference/functions/delete-log-export-configuration.md): Stops exporting a function's logs and removes its destination configuration. Idempotent: deleting when nothing is configured succeeds.
- [Get function metric aggregates](https://developers.telnyx.com/api-reference/functions/get-function-metric-aggregates.md): Returns aggregate request, latency, CPU, memory, and resource-limit metrics for a function over the requested window.
- [List function revisions](https://developers.telnyx.com/api-reference/functions/list-function-revisions.md): Lists a function's ship history newest first, including per-ship failure stage and reason when recorded.
- [Inspect latest function ship](https://developers.telnyx.com/api-reference/functions/inspect-latest-function-ship.md): Returns the latest ship outcome. The stage is `none` on success, `pending` while building, or a failure stage such as `build`, `platform`, `pre_build`, `deploy…