Staxly

Supabase vs LangChain

The open source Firebase alternative with Postgres
vs. The framework for building LLM apps — chains, agents, RAG, LangGraph

Supabase websiteLangChain website

Pricing tiers

Supabase

Free
Perfect for experiments. Projects pause after 7 days inactivity.
Free
Pro
Production-ready. Usage-based overages apply.
$25/mo
Team
For teams; includes SOC2 attestation and priority support.
$599/mo
Enterprise
Custom quotas, HIPAA compliance, dedicated support.
Custom
Supabase website

LangChain

OSS (MIT)
MIT-licensed core library. Free forever. Python + JS.
$0 base (usage-based)
LangSmith (see entry)
Observability layer — Developer free, Plus $39/seat. Separate platform.
$0 base (usage-based)
LangGraph Platform — Developer
Deploy LangGraph agents as an API. Free tier — limited execution minutes.
$0 base (usage-based)
LangGraph Platform — Plus
$39/seat/mo (tied to LangSmith Plus). More execution credit. Production features.
$39/mo
Enterprise
Custom. Self-host, dedicated support, SSO.
Custom
LangChain website

Free-tier quotas head-to-head

Comparing free on Supabase vs oss on LangChain.

MetricSupabaseLangChain
bandwidth gb5 GB/month
db storage gb0.5 GB
edge invocations500000 invocations/month
file storage gb1 GB
mau50000 users/month
realtime messages2000000 messages/month

Features

Supabase · 24 features

  • AuthenticationComplete JWT-based auth: passwords, magic links, OTP, OAuth, SSO, phone, MFA.
  • Backups & PITRAutomatic daily backups + Point-in-Time Recovery (WAL-G). 14-day default PITR wi
  • Compute InstancesUpgradeable DB compute: Micro, Small, Medium, Large. Affects CPU, RAM, and conne
  • Connection PoolingSupavisor pooler: Session mode (persistent) and Transaction mode (serverless). D
  • Cron JobsScheduled recurring jobs via pg_cron. Trigger DB functions, edge functions, or H
  • Custom DomainsConfigure custom hostname for API endpoints with SSL certificate management.
  • Database WebhooksAsync HTTP callbacks on INSERT/UPDATE/DELETE via pg_net extension.
  • Edge FunctionsTypeScript (Deno runtime) functions deployed globally at the edge. Supports secr
  • Full-Text SearchPostgreSQL native FTS: to_tsvector, to_tsquery, GIN indexes, fuzzy matching, wei
  • Image TransformationsOn-the-fly resize, crop, quality (20-100), WebP auto-format. Smart CDN caching.
  • Log DrainsRoute all stack logs to HTTP, Datadog, Loki, Sentry, S3, OTLP, or Axiom. Up to 2
  • Metrics API~200 Prometheus-compatible Postgres metrics. OpenTelemetry export to Datadog, Gr
  • Network RestrictionsCIDR allowlist for database access. Multiple IP ranges supported. Pro+ plan.
  • OAuth 2.1 ServerUse Supabase Auth as OAuth provider. Custom Access Token Hooks for claim injecti
  • pgvectorStore and search vector embeddings in Postgres. Supports HNSW/Flat indexes, cosi
  • PostgreSQL DatabaseFull PostgreSQL per project: SQL editor, table editor, CSV import, 50+ extension
  • PostgreSQL Extensions50+ pre-installed extensions: uuid-ossp, pgvector, pg_cron, plv8, pgtap, pg_net,
  • Preview BranchesEphemeral or persistent DB branches for isolated testing. Git integration, auto-
  • QueuesExactly-once message queues built on pgmq. Stored in Postgres with configurable
  • Read ReplicasAsync read-only replicas in multiple regions. Geo-routing, replication lag monit
  • RealtimeWebSocket subscriptions for DB changes (INSERT/UPDATE/DELETE), broadcast, and pr
  • Row Level SecuritySQL-native access control; policies auto-filter rows based on auth.uid() / auth.
  • SSL EnforcementRequire TLS for all DB connections. Configurable: required, preferred, disabled.
  • StorageFiles, Analytics (Iceberg), and Vector buckets with global CDN (285+ cities) and

LangChain · 18 features

  • AgentsTool-using agents with reasoning loops.
  • Chains (LCEL)LangChain Expression Language — pipe primitives into chains.
  • Checkpointers (LangGraph)Persist agent state to SQL, Mongo, Redis, Postgres.
  • Document Loaders150+ loaders for PDF, HTML, Notion, Google Drive, S3, GitHub, etc.
  • Human-in-the-loopPause agent for approval, then resume.
  • LangGraphStateful graph-based agent runtime. Durable, replayable, human-in-the-loop.
  • LangGraph PlatformManaged hosting for LangGraph agents with state persistence.
  • LangGraph StudioDesktop IDE for debugging agent graphs.
  • LangServeDeploy chains as FastAPI endpoints.
  • MemoryBuffer, summary, entity, vector memory stores.
  • Output ParsersStructured JSON, Pydantic schemas, function calling.
  • Prompt TemplatesTemplating + partial filling + output parsers.
  • RAG (Retrieval-Augmented Generation)Standard patterns + 50+ retrievers.
  • StreamingFirst-class streaming at every layer.
  • SubgraphsCompose agent graphs hierarchically.
  • Text SplittersRecursive, token, semantic splitters for chunking.
  • Tools400+ pre-built tools (web search, code, databases, APIs).
  • Vector Store Integrations60+ vector DBs (Pinecone, Chroma, Weaviate, PGVector, Qdrant, Milvus).

Developer interfaces

KindSupabaseLangChain
CLISupabase CLI
SDKC# SDK, Flutter SDK, JavaScript SDK, Kotlin SDK, Python SDK, Swift SDK@langchain/core (Node), langchain (Python), langgraph (JS), langgraph (Python), LangServe
RESTManagement API, REST API (PostgREST)LangGraph Platform
GRAPHQLGraphQL (pg_graphql)
MCPSupabase MCP Server
OTHERRealtime (WebSocket)
Staxly is an independent catalog of developer platforms. Some links to Supabase and LangChain may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.

Want this comparison in your AI agent's context? Install the free Staxly MCP server.