Alternatives
10 best Arcjet alternatives
Tools that cover the same task as Arcjet (ai agent security), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 9, 2026.
- Arcjet starts at
- $25/mo
- Free plan
- Free trial
- API
- API available
- 01
Kompy
Plans meter monthly credits with concurrency and request-rate limits for developers and AI agents.
Best for: Developers and agent builders who need structured Walmart catalog and pricing history without maintaining scrapers.
- 02
exchangerate.host
ExchangeRate.host provides a free forex and currency conversion API with optional paid subscriptions for higher request volumes.
Best for: Developers building multi-currency apps who need scalable rate limits beyond the free entry tier.
- 03
Quicknode
Quicknode provides blockchain infrastructure including RPC nodes, real-time streams, indexed data, and trading execution from one account. Builders choose credit-based plans with increasing request limits and support SLAs as usage grows.
Best for: Developers and businesses shipping on-chain apps who need managed nodes, streams, and scalable RPC throughput.
- 04
Inth
Inth embeds cookie consent and privacy scanning directly in your application. It offers free scans that show issue counts before purchase, continuous PR and runtime monitoring with Inth Agent, and consent infrastructure with regional policy packs and session limits.
Best for: Developers and privacy teams that want consent UI and codebase or runtime privacy audits inside their own repos and domains.
- 05
ZenRows
ZenRows provides web data infrastructure for AI agents and applications, fetching and extracting pages—including JavaScript-heavy or protected sites—through one API with SDKs, CLI, and MCP server interfaces. Teams use credits on successful requests for fetch, extract, batch, crawl, and browser session workflows.
Best for: Data engineers and AI agent builders who need reliable access to dynamic or anti-bot protected web pages.
- 06
Laminar
Laminar is an open-source agent observability platform that captures LLM calls, tool calls, sub-agents, costs, and tokens, then surfaces failures through Signals and clustered failure modes. Hosted plans add retention, data limits, and support tiers for teams shipping production agents.
Best for: Engineering teams running AI agents who need trace visibility, automatic failure detection, and hosted retention without building observability in-house.
- 07
Trylle
Trylle hosts Git repositories with CI compute and AI-assisted pull-request reviews, security audits and automations. Plans combine repository storage with separate monthly CI and AI credit grants.
Best for: Choose it when you want Git hosting, CI and agent-assisted reviews with explicit usage grants.
- 08
CertiLayer
CertiLayer is behavioral security infrastructure that uses interaction signals and machine-learning models to distinguish human sessions from automated activity. Developers integrate SDKs or APIs, review a human-confidence score and apply configured policies or events without presenting a CAPTCHA on every visit.
Best for: Choose for developers evaluating passive bot-risk signals in a monitored authentication, signup or checkout workflow.
- 09
Castle
Castle provides SDKs and APIs to detect bots, monitor risky logins, and stop account abuse using device, email, IP, and behavioral intelligence. Teams integrate Castle to score traffic and automate policy actions in web and mobile apps.
Best for: Product and fraud teams at consumer apps that need bot detection, account takeover protection, and IP intelligence without heavy integration friction.
- 10
IP2Location.io
IP2Location.io provides IP geolocation, proxy detection, and related APIs including bulk queries, WHOIS, and hosted domain lookups. Subscription plans scale monthly query allotments for geolocation, WHOIS, and hosted domain endpoints.
Best for: Developers adding IP geolocation, fraud signals, or localization to apps, security stacks, or marketing tooling.
Arcjet alternatives: common questions
What is the best free alternative to Arcjet?
exchangerate.host has an ongoing free plan. Free tier lets teams try the API without a card; paid Basic, Professional Plus, and Business Plus plans raise monthly request limits. Free plans change, so check the vendor before relying on one.
What is the cheapest Arcjet alternative?
Trylle has the lowest listed starting price at $4/mo, compared with $25/mo for Arcjet.
Which Arcjet alternatives have an API?
Kompy, exchangerate.host, Quicknode, ZenRows, CertiLayer mention API or developer access.