Mira vs Spider Cloud

Side-by-side comparison of features, pricing, and ratings

Live tool data as of 2026-07-17
Reviewed by our team on
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At a glance

DimensionMiraSpider Cloud
Pricingfree · from Self-Hosted $0/mofreemium · from Free Credits on Signup $0
Best forEngineering teams wanting cost-effective AI code review with full data control, Privacy-conscious organizations that cannot send code to third-party APIsAI agents needing real-time web data for RAG, RAG pipelines requiring up-to-date content from the web
Standout featuresSelf-hosted AI code review for GitHub pull requests · Full-repo indexing for context-aware diff review · Inline comments with severity and confidence scoresWeb crawling and scraping API with Rust engine · AI Studio add-on for natural language crawling ($6/mo) · Browser AI commands via WebSocket: Act, Extract, Observe
Viability score87/10088/100
APIYesYes

Mira is the stronger pick for engineering teams wanting cost-effective ai code review with full data control; Spider Cloud fits better for ai agents needing real-time web data for rag.

Built from live tool data, last verified 2026-07-17.

Mira
Mira

Self-hosted, open-source AI code reviewer that indexes your full repo and learns your team's rules.

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Spider Cloud
Spider Cloud

Fast web crawling, scraping & search API for AI agents

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Pricing
Free
Freemium
Plans
$0/mo
$0
$5
$25
$50
$100
$500 (+5% bonus)
$2,000 (+12% bonus)
$350/mo
Popularity
2 views
7.5k views
Skill Level
Intermediate
Intermediate
API Available
Platforms
Web
WebAPI
Categories
💻 Code & Development⚙️ Developer Infrastructure
⚙️ Developer Infrastructure
Features
Self-hosted AI code review for GitHub pull requests
Full-repo indexing for context-aware diff review
Inline comments with severity and confidence scores
PR walkthrough summary with Mermaid sequence diagram
Parallel chunk review for large diffs
Deduplication of comments across chunks and files
GitHub suggestion blocks for one-click fixes
Vulnerability scanning via OSV.dev poll
Custom per-repo and global rules with CRUD
Org-wide package search with lockfile-aware dedupe
Dependency graph with cross-repo relationships
Blast-radius analysis for symbol changes
Learning loop from rejected comments and merged PRs
Outbound webhooks for Slack, Teams, and generic endpoints
Extended reasoning budget for reviews (off/low/medium/high/max)
Web crawling and scraping API with Rust engine
AI Studio add-on for natural language crawling ($6/mo)
Browser AI commands via WebSocket: Act, Extract, Observe
Silk custom AI model for extraction and captcha solving
Browser Cloud with stealth anti-detection for heavily protected sites
Structured output: markdown (GitHub, plain), HTML, JSON, JSONL, CSV, XML, plain text
Screenshot capture of pages
Link extraction from pages
Search endpoint for query-based data retrieval
Unblocker with rotating proxies and automatic retries
1,000+ ready-made scraper examples across 32 categories
Data connectors: S3, GCS, Google Sheets, Azure Blob, Supabase
Respects robots.txt (configurable)
Failed requests not billed
Open-source core available on GitHub
Integrations
GitHub
OpenRouter
Anthropic
OpenAI
Google
DeepSeek
MiniMax
Slack
Microsoft Teams
Docker
SQLite
PostgreSQL
Railway
Fly.io
Render
LangChain
LlamaIndex
CrewAI
FlowiseAI
AutoGen
Agno
Google Cloud Storage
Amazon S3
Supabase
Azure Blob
Google Sheets
Dify
MCP

Who should pick which

  • Privacy-conscious engineering team using GitHub
    Pick: Mira

    Mira is self-hosted, so code never leaves your infrastructure. It's free and open-source, with full-repo indexing and custom rules, perfect for teams that cannot send code to third-party APIs.

  • AI agent developer needing real-time web data
    Pick: Spider Cloud

    Spider Cloud provides a fast web crawling API with AI extraction, Browser AI commands, and direct integrations with LangChain/LlamaIndex, ideal for RAG pipelines and agent tools.

  • Solo developer wanting free code review bot
    Pick: Mira

    Mira is free and open-source. You can deploy it yourself and use any LLM. It provides comprehensive PR reviews with vulnerability scanning, no paid tiers.

  • Team building a scraper catalog for e-commerce
    Pick: Spider Cloud

    Spider Cloud offers 1000+ ready-made scraper examples across 32 categories, plus data connectors to S3/Sheets. Its Rust engine handles high volume at low cost.

  • Organization needing dependency impact analysis
    Pick: Mira

    Mira's blast-radius analysis and dependency graph give insight into how symbol changes affect the codebase, essential for large repos.

Frequently Asked Questions

Which is better, Mira or Spider Cloud?

The best choice between Mira and Spider Cloud depends on your specific use case — we compare them independently on features, current pricing, integrations, and real-world signals (with an on-demand sentiment scan available for each). See the side-by-side breakdown above to match them to your needs.

What are the main differences between Mira and Spider Cloud?

The key differences include pricing model, feature set, platform support, and skill level requirements. Review the full comparison on RightAIChoice for a detailed breakdown.

Is there a free version of Mira or Spider Cloud?

Check the pricing section in the comparison for the latest pricing details on both tools, including free tiers, trial options, and paid plans.

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Explore each tool further

Mira
View Mira reviewMira alternatives
Spider Cloud
View Spider Cloud reviewSpider Cloud alternatives

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