cross stack 100% Deterministic Spec Audit

Spider vs Supabase Vector

Comparing architecture, runtime limits, open-source licenses, and monthly costs for autonomous agent pipelines.

Spider

Spider Rust Org (Jeff Mendez)

Supabase Vector

Supabase Inc. (Paul Copplestone & Ant Wilson)

Detailed Specifications & Compatibility Matrix

Extracted directly from GitHub REST API & official developer documentation

Technical Feature / Metric Spider Supabase Vector
Developer / Organization Spider Rust Org (Jeff Mendez) Supabase Inc. (Paul Copplestone & Ant Wilson)
Open-Source Engine ✓ Open Source (MIT) ✓ Open Source (Apache-2.0)
GitHub Stars (Repo/SDK) ★ 2,795 GitHub Stars ★ 113,917 GitHub Stars
Core Repository Language Rust TypeScript
Supported SDK Clients
rustpythontypescript
typescriptpythondartswiftgo
Self-Hosted Deployment ✓ Supported ✓ Supported
Docker / Container Ready ✓ Official Image ✓ Official Image
Model Context Protocol (MCP) ✓ Native MCP ✓ Native MCP
Billing Architecture free hybrid
Developer Free Tier
✓ Yes

1,000 free credits on sign-up

✓ Yes

500MB database storage (2 free projects)

Entry Paid Tier (Monthly) $15 USD / mo $25 USD / mo
Pricing & Cost Architecture Core Rust crawler is 100% free and open-source under MPL-2.0. Managed Spider Cloud API offers a free tier of 1,000 credits, with paid plans beginning at $15/mo. Free tier offers 2 managed projects with 500MB database storage (~250k vectors). Pro plan starts at $25/mo with 8GB storage and scalable compute add-ons.
Key Engineering Insight Independent benchmarks demonstrate Spider crawling large e-commerce catalogs at over 100,000 pages per minute while maintaining RAM consumption under 150MB. Allows developers to store relational application state, user authentication (Row Level Security), and high-dimensional vector embeddings inside a single ACID-compliant Postgres database.

Strengths & Trade-Offs

Objective engineering evaluation of both platforms

Spider Evaluation

Key Advantages

  • ✓ High-performance Rust architecture delivering benchmark speeds up to 10x faster than Python Scrapy
  • ✓ Minimal CPU and RAM footprint allowing dense deployment on lightweight VPS instances or containers
  • ✓ Permissive Mozilla Public License 2.0 open-source engine with built-in headless browser and HTTP modes

Limitations & Trade-Offs

  • ✕ Smaller developer community and fewer pre-built third-party plugins compared to Playwright or Puppeteer
  • ✕ Extending low-level network and HTML parsing logic requires proficiency with the Rust toolchain

Supabase Vector Evaluation

Key Advantages

  • ✓ Combines vector search with full Postgres ecosystem: Row Level Security, ACID transactions, and relational joins
  • ✓ Instant auto-generated client APIs (REST, GraphQL, real-time WebSockets) with zero backend boilerplate
  • ✓ Permissive open-source stack with official Docker compose deployment for self-hosting on any VPS

Limitations & Trade-Offs

  • ✕ Free tier projects pause automatically after 7 days of inactivity (resumed upon dashboard login)
  • ✕ Dedicated standalone C++ vector stores can achieve higher raw QPS for multi-million vector datasets

Source Quotes

Direct excerpts from official documentation backing our extracted specifications

Spider Documentation Proof

PRICING:

"Spider Cloud paid subscriptions start at $15/month for 100,000 pages."

FREE_TIER:

"Free tier provides 1,000 credits to test API endpoints."

SELF_HOSTED:

"Open source engine available under MPL-2.0 for self-hosted instances."

Supabase Vector Documentation Proof

PRICING:

"Pro plan is $25/month including 8GB disk space, 100k monthly active users, and no project pausing."

FREE_TIER:

"Free tier includes 2 free projects, 500MB database space, and up to 50,000 monthly active users."

SELF_HOSTED:

"Supabase is open source and self-hostable with Docker."

Frequently Asked Questions: Spider vs Supabase Vector

Architectural trade-offs and decision criteria

Is Spider or Supabase Vector cheaper for developers?

Spider has a starting price of $15/mo (free), while Supabase Vector starts at $25/mo (hybrid). Spider includes a free tier (1,000 free credits on sign-up). Supabase Vector offers a free tier (500MB database storage (2 free projects)).

Can I self-host Spider and Supabase Vector in my own infrastructure?

Spider is self-hostable under the MIT license. In comparison, Supabase Vector is available for self-hosting with Apache-2.0 licensing.

Do Spider and Supabase Vector support the Model Context Protocol (MCP)?

Spider has native support for MCP servers. Supabase Vector fully supports Model Context Protocol integrations.

Which programming languages have official SDKs for Spider vs Supabase Vector?

Spider provides official SDKs in: rust, python, typescript. Meanwhile, Supabase Vector supports: typescript, python, dart, swift, go.