Overview

echoValue is a set of lightweight backend utilities designed for freelancers and small projects. No server setup, no infrastructure to manage — just a token and an HTTP call.

It provides a small set of focused HTTP utilities for storage, webhooks, DNS inspection, URL metadata, caller-IP lookup, logs, and wallet management.

Store small state with the Key-Value Store
Receive email or run cron-style callbacks with Webhooks
Inspect DNS, URLs, and caller IPs with Utilities
Track credits and calls with Token Management and Logs

echoValue is API-first. If you prefer a browser interface for common operations, you can also use the optional dashboard at dash.echovalue.dev.

Quick Start

1. Generate a token (free, includes 100 credits):

curl 'https://api.echovalue.dev/token' -d 'token=new'
# → a1b2c3d4e5f6g7h8i9j0...

2a. Store and retrieve a value:

curl 'https://api.echovalue.dev/kv/default/mykey' \
  -H 'x-token: YOUR_TOKEN' \
  -d 'hello world'
# → OK

curl 'https://api.echovalue.dev/kv/default/mykey' \
  -H 'x-token: YOUR_TOKEN'
# → hello world

2b. Or configure an email-to-webhook bridge:

curl 'https://api.echovalue.dev/webhook' \
  -H 'x-token: YOUR_TOKEN' \
  -H 'Content-Type: application/json' \
  -d '{"webhookId":"default","url":"https://yourdomain.com/webhook"}'
# → {"webhookId":"default","webhook":"https://yourdomain.com/webhook","email":"r_abcd1234@hook.echovalue.dev",...}
# Emails sent to the returned mailbox address now POST to your URL

Services

Service	Description
Key-Value Store	Store, retrieve, and delete key-value pairs organized in buckets
Webhook	Receive emails at an opaque mailbox address or run scheduled deliveries, while managing each integration through a public `webhookId`
DNS Lookup	Run DNS record queries, propagation checks, reverse lookups, SSL inspection, and optional security enrichment
My IP	Inspect the caller IP address together with geo metadata derived from the request
URL To Metadata	Fetch metadata and optional summaries for a public URL
Logs	Inspect your recent API call history
Token Management	Check your credit balance and recharge

Reference

Page	Use it for
API Cheat Sheet	Compare endpoints, auth, costs, and common use cases
Limits & Retention	Check size, TTL, retention, and webhook scheduling limits
Errors	Understand status codes and common fixes
OpenAPI Specification	Generate clients or import the API into tooling

AI Integration

Machine-readable documentation is available at /llms.txt, /llms-small.txt, and /llms-full.txt. Agent setup files are documented in the installation guide.