castomAPI
Get your key

Web, search & AI · 10 operations

Proxy API

Safe fetch, stealth fetch, CORS, image transforms, RSS and XML to JSON, CSV streams, cache acceleration, an LLM relay, webhook relay.

Utilities 1–2 tokens API key

Endpoints in Proxy

POSTAccelerate third-party API endpoints using an edge Redis caching layer/v1/proxy/cache-accelerator1 token POSTBypass CORS restrictions by proxying HTTP requests to any public…/v1/proxy/cors1 token POSTStreams remote CSV files/v1/proxy/csv-stream2 tokens POSTOn-the-fly Image Proxy: Resize/v1/proxy/image-transform1 token POSTAdvanced Multimodal AI Gateway supporting Google Gemini (2/3)/v1/proxy/llmPRO from 2 tokens POSTConverts RSS 2.0, Atom 1.0/v1/proxy/rss-to-json1 token POSTZero-Trust SSRF Safe Proxy/v1/proxy/safe-fetch1 token POSTBypass basic anti-bot protections to scrape target URLs into Markdown/v1/proxy/stealth-fetch2 tokens POSTSecure Webhook Relay Proxy with HMAC SHA-256 signature generation/v1/proxy/webhook-relay2 tokens POSTTranslates remote XML/SOAP web services or raw XML payloads into clean/v1/proxy/xml-to-json1 token

Cost and limits

This operation costs 1–2 tokens. A call that fails is never billed. Every account gets 1000 free tokens a month; paid balances never expire.

Rate limits per minute

No key 10 · Free 60 · Pro 300 · Enterprise 1200 ·

OpenAPI

https://app.castomapi.com/docs/json

Web, search & AI

Scrape

One page, its images, its favicon, its Google reviews, a CEIDG record, a content moderation verdict, a site's stack.

Crawl

Whole sites: basic, deep, or every image — with limits you set and a structure you can index.

SERP

Search results, keyword research, rivals, cannibalisation, mobile tests and element counts.

Trends

Interest over time and by region, suggestions, top charts and what is trending now.

AI

A UX audit of any URL: multi-viewport screenshots read by a vision model, with concrete suggestions.

Email

Read and send over the customer's own IMAP and SMTP — stateless, nothing stored.