vector databases Open Source (Apache-2.0)

Astra DB

Serverless vector database built on Apache Cassandra with DiskANN indexing, sub-10ms latency, and multi-region active-active replication.

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GitHub Stars 30 TypeScript
Starting Price $25/mo usage based
MCP Compatibility ✅ Native Support Cloud Only

Pricing & Quota Breakdown

Free tier provides 80GB monthly data transfer and 25M read/write operations (~$25/mo value). Pay-as-you-go serverless scales from $0 based on actual operations and storage.

Developer Free

$0 / month
Billed per credit
  • ✓ Community support
  • ✓ Standard rate limits
  • ✓ Core API access

Pro Tier

$25 / month
Billed per credit
  • ✓ High concurrency
  • ✓ Priority routing
  • ✓ Extended limits

Head-to-Head Astra DB Comparisons

Side-by-side technical benchmarks with competitors

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★ 30 GH Stars $25/mo
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★ 30 GH Stars $25/mo
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★ 30 GH Stars $25/mo
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★ 30 GH Stars $25/mo
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★ 30 GH Stars $25/mo
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