How LangGraph’s scores are calculated
The full audit trail, recomputed from the verdict data at build time through the same code that produced the leaderboard: verdict × quality × story weight per cell, cells sum to dimension scores, dimensions blend into the PA Score. Every number on the product page is reproducible from this page alone; for why the formula looks like this, see the methodology.
verdict factors: full ×1.0 · partial ×0.6 · disputed ×0.3 · none ×0.0 · n/a excluded from both sides · cell points = weight × quality × factor · cell max = weight × 10
PA Score27/100
Agent-ready 42.8 × 0.30 = 12.84
API quality 3.4 × 0.20 = 0.68
Openness 42.0 × 0.20 = 8.40
Built-in AI 21.0 × 0.15 = 3.15
Automation 12.8 × 0.15 = 1.92
(12.84 + 0.68 + 8.40 + 3.15 + 1.92) ÷ (0.30 + 0.20 + 0.20 + 0.15 + 0.15) = 26.99 ÷ 1.00 = 27.0
Scores are stored to 1 decimal; the product page’s pills round to whole numbers for display. Each dimension below shows the stories, verdicts, and cited evidence behind its number.
Agent-ready42.8/100×0.30 of the PA blend
Outside-in: can YOUR agent reach and drive this product — API, MCP, CLI, headless runs, agent docs.
Point an agent at llms.txt or agent-oriented docsweight 2
2 (weight) × 9 (quality) × 1.0 (full) = 18.0 of 20 max
- [probe] https://docs.langchain.com/llms.txt“PROBE llms.txt: HTTP 200 at https://docs.langchain.com/llms.txt # Docs by LangChain > Documentation for LangSmith, Fleet, and our open source packages. Each section index below lists”
- [probe] https://docs.langchain.com/oss/python/langgraph/overview.md“PROBE docs-md: HTTP 200 at https://docs.langchain.com/oss/python/langgraph/overview.md > ## Documentation Index > Fetch the complete documentation index at: https://docs.langchain.com/llms.txt > Use this fil”
Run the product headlessly / in CI for automationweight 2
2 (weight) × 6 (quality) × 0.6 (partial) = 7.2 of 20 max
- [github] https://github.com/langchain-ai/langgraph“pip install -U langgraph”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI** is a command-line tool for building and running the [Agent Server](/langsmith/agent-server) locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/streaming.md“LangGraph graphs expose the stream (sync) and astream (async) methods to yield streamed outputs as iterators.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/persistence.md“Checkpointers persist a thread's graph state as checkpoints. Use them for short-term, thread-scoped memory, including conversation continuity, human-in-the-loop workflows, time travel, and fault tolerance.”
Plug MCP servers into this product so it can use their toolsweight 3
3 (weight) × 6 (quality) × 1.0 (full) = 18.0 of 30 max
- [claimed-docs] https://docs.langchain.com/oss/python/langchain/mcp.md“LangChain agents call tools defined on MCP servers through MCPAdapter, which discovers a server's tools and adapts them into LangChain tools.”
Connect an agent via an official MCP serverweight 3
3 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 30 max
- [claimed-docs] https://docs.langchain.com/oss/python/langchain/mcp.md“LangChain agents call tools defined on MCP servers through MCPAdapter, which discovers a server's tools and adapts them into LangChain tools.”
Use an official CLIweight 2
2 (weight) × 9 (quality) × 1.0 (full) = 18.0 of 20 max
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI** is a command-line tool for building and running the [Agent Server](/langsmith/agent-server) locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc.”
- [probe] https://docs.langchain.com/langsmith/cli“official CLI documented at https://docs.langchain.com/langsmith/cli”
Drive the product through a documented public APIweight 3
3 (weight) × 7 (quality) × 0.6 (partial) = 12.6 of 30 max
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI** is a command-line tool for building and running the [Agent Server](/langsmith/agent-server) locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally.”
- [probe] https://docs.langchain.com/openapi.json“PROBE openapi: all candidate paths 404 (https://docs.langchain.com/openapi.json, https://docs.langchain.com/swagger.json, https://docs.langchain.com/api/openapi.json, https://docs.langchain.com/.well-known/openapi.json)”
- [probe] https://docs.langchain.com/langsmith/cli“official CLI documented at https://docs.langchain.com/langsmith/cli”
- [community] https://news.ycombinator.com/item?id=43468435“I read the article but have yet to understand why someone would want to use a framework that introduces meaningless abstractions that are not properly documented or well maintained -aka, they often introduce breaking changes.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.md“LangGraph models agent workflows as graphs. You define the behavior of your agents using three key components: State, Nodes, Edges.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/streaming.md“LangGraph graphs expose the stream (sync) and astream (async) methods to yield streamed outputs as iterators.”
Issue scoped/least-privilege API credentials for an agentweight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
no evidence cited — the verdict rests on absence of evidence, re-checked on refresh
Build against official SDKsweight 2
2 (weight) × 8 (quality) × 1.0 (full) = 16.0 of 20 max
- [github] https://github.com/langchain-ai/langgraph“pip install -U langgraph”
- [github] https://github.com/langchain-ai/langgraph“LangGraph is a low-level orchestration framework for building, managing, and deploying long-running, stateful agents.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.md“At its core, LangGraph models agent workflows as graphs. You define the behavior of your agents using three key components”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.md“LangGraph models agent workflows as graphs. You define the behavior of your agents using three key components: State, Nodes, Edges.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.”
- [probe] https://docs.langchain.com/langsmith/cli“official CLI documented at https://docs.langchain.com/langsmith/cli”
- [community] https://news.ycombinator.com/item?id=43468435“I read the article but have yet to understand why someone would want to use a framework that introduces meaningless abstractions that are not properly documented or well maintained -aka, they often introduce breaking changes.”
Subscribe to events via webhooksweight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
no evidence cited — the verdict rests on absence of evidence, re-checked on refresh
Agent-ready = 89.8 ÷ 210 × 100 = 42.8
API quality3.4/100×0.20 of the PA blend
The programmable surface once an agent is there — machine-readable spec, interactive docs, sandbox, versioning discipline.
Explore an interactive API reference with runnable examplesweight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
- [probe] https://docs.langchain.com/openapi.json“PROBE openapi: all candidate paths 404 (https://docs.langchain.com/openapi.json, https://docs.langchain.com/swagger.json, https://docs.langchain.com/api/openapi.json, https://docs.langchain.com/.well-known/openapi.json)”
Download a machine-readable API spec (OpenAPI or equivalent)weight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI** is a command-line tool for building and running the [Agent Server](/langsmith/agent-server) locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc.”
- [probe] https://docs.langchain.com/openapi.json“PROBE openapi: all candidate paths 404 (https://docs.langchain.com/openapi.json, https://docs.langchain.com/swagger.json, https://docs.langchain.com/api/openapi.json, https://docs.langchain.com/.well-known/openapi.json)”
Test against a sandbox environment without touching production dataweight 1
1 (weight) × 4 (quality) × 0.6 (partial) = 2.4 of 10 max
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI** is a command-line tool for building and running the [Agent Server](/langsmith/agent-server) locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/add-memory.md“In production, use a checkpointer backed by a database: from langgraph.checkpoint.postgres import PostgresSaver”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally.”
Rely on versioned APIs with a documented deprecation policyweight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
- [community] https://news.ycombinator.com/item?id=43468435“I read the article but have yet to understand why someone would want to use a framework that introduces meaningless abstractions that are not properly documented or well maintained -aka, they often introduce breaking changes.”
API quality = 2.4 ÷ 70 × 100 = 3.4
Openness42.0/100×0.20 of the PA blend
Can you leave, inspect, or self-host — data export, open source, portability.
Do everything through the API that I can do in the UIweight 2
2 (weight) × 4 (quality) × 0.6 (partial) = 4.8 of 20 max
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI** is a command-line tool for building and running the [Agent Server](/langsmith/agent-server) locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc.”
- [probe] https://docs.langchain.com/openapi.json“PROBE openapi: all candidate paths 404 (https://docs.langchain.com/openapi.json, https://docs.langchain.com/swagger.json, https://docs.langchain.com/api/openapi.json, https://docs.langchain.com/.well-known/openapi.json)”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally.”
Export all of my data in open formats and leaveweight 3
3 (weight) × 4 (quality) × 0.6 (partial) = 7.2 of 30 max
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/add-memory.md“In production, use a checkpointer backed by a database: from langgraph.checkpoint.postgres import PostgresSaver”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/persistence.md“Stores persist application-defined data outside the graph state. Use them for long-term, cross-thread memory, including user preferences, facts, and shared knowledge.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/persistence.md“Checkpointers persist a thread's graph state as checkpoints. Use them for short-term, thread-scoped memory, including conversation continuity, human-in-the-loop workflows, time travel, and fault tolerance.”
- [github] https://github.com/langchain-ai/langgraph“LangGraph is a low-level orchestration framework for building, managing, and deploying long-running, stateful agents.”
Read the product's source under an open licenseweight 2
2 (weight) × 5 (quality) × 0.6 (partial) = 6.0 of 20 max
- [github] https://github.com/langchain-ai/langgraph“pip install -U langgraph”
- [github] https://github.com/langchain-ai/langgraph“LangGraph is a low-level orchestration framework for building, managing, and deploying long-running, stateful agents.”
- [github] https://github.com/langchain-ai/langgraph“Low-level orchestration framework for building stateful agents.”
Self-host the core productweight 3
3 (weight) × 8 (quality) × 1.0 (full) = 24.0 of 30 max
- [github] https://github.com/langchain-ai/langgraph“pip install -U langgraph”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI** is a command-line tool for building and running the [Agent Server](/langsmith/agent-server) locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/add-memory.md“In production, use a checkpointer backed by a database: from langgraph.checkpoint.postgres import PostgresSaver”
Openness = 42.0 ÷ 100 × 100 = 42.0
Built-in AI21.0/100×0.15 of the PA blend
Inside-out: how agentic the product itself is for its users — built-in assistants, autonomous features.
Get AI-generated insights and suggestions from my data inside the productweight 2
n/a — not applicable to this product: excluded from numerator and denominator
no evidence cited — the verdict rests on absence of evidence, re-checked on refresh
Set up automations that run autonomously in the backgroundweight 2
2 (weight) × 7 (quality) × 0.6 (partial) = 8.4 of 20 max
- [github] https://github.com/langchain-ai/langgraph“Durable execution — Build agents that persist through failures and can run for extended periods, automatically resuming from exactly where they left off.”
- [github] https://github.com/langchain-ai/langgraph“Production-ready deployment — Deploy sophisticated agent systems confidently with scalable infrastructure designed to handle the unique challenges of stateful, long-running workflows.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/add-memory.md“In production, use a checkpointer backed by a database: from langgraph.checkpoint.postgres import PostgresSaver”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/interrupts.md“Checkpointing keeps your place: the checkpointer writes the exact graph state so you can resume later, even when in an error state.”
- [community] https://hn.algolia.com/api/v1/items/41722243“The one thing I wish was better developed is persistence and streaming - they give sample code to stream, but it's essentially a complete implementation of streaming that every client needs to implement.”
Delegate tasks to a built-in AI assistant inside the productweight 3
n/a — not applicable to this product: excluded from numerator and denominator
no evidence cited — the verdict rests on absence of evidence, re-checked on refresh
Operate the product with natural-language commandsweight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.md“At its core, LangGraph models agent workflows as graphs. You define the behavior of your agents using three key components”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.md“LangGraph models agent workflows as graphs. You define the behavior of your agents using three key components: State, Nodes, Edges.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.”
Built-in AI = 8.4 ÷ 40 × 100 = 21.0
Automation12.8/100×0.15 of the PA blend
Depth of automation primitives — rules, scheduling, bulk operations, webhooks.
Perform bulk operations across many items at onceweight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
- [community] https://news.ycombinator.com/item?id=43468435“LangGraph implements a variant of the Pregel/BSP algorithm for orchestrating workflows with cycles (ie. not DAGs) and parallelism without data races. You can design your graph as a state machine if you so desire.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/streaming.md“LangGraph graphs expose the stream (sync) and astream (async) methods to yield streamed outputs as iterators.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/streaming.md“It exposes graph execution through stream modes such as updates, values, messages, custom, checkpoints, tasks, and debug.”
Define rules that trigger actions automatically on eventsweight 3
3 (weight) × 4 (quality) × 0.6 (partial) = 7.2 of 30 max
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.md“At its core, LangGraph models agent workflows as graphs. You define the behavior of your agents using three key components”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.md“By composing Nodes and Edges, you can create complex, looping workflows that evolve the state over time.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.md“LangGraph models agent workflows as graphs. You define the behavior of your agents using three key components: State, Nodes, Edges.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/interrupts.md“Interrupts allow you to pause graph execution at specific points and wait for external input before continuing.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.”
Schedule recurring jobs or workflowsweight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
no evidence cited — the verdict rests on absence of evidence, re-checked on refresh
Version, review, and roll back my automationsweight 1
1 (weight) × 5 (quality) × 0.6 (partial) = 3.0 of 10 max
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/persistence.md“Checkpointers persist a thread's graph state as checkpoints. Use them for short-term, thread-scoped memory, including conversation continuity, human-in-the-loop workflows, time travel, and fault tolerance.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/interrupts.md“Checkpointing keeps your place: the checkpointer writes the exact graph state so you can resume later, even when in an error state.”
- [github] https://github.com/langchain-ai/langgraph“Seamlessly incorporate human oversight by inspecting and modifying agent state at any point during execution.”
- [claimed-docs] https://docs.langchain.com/langsmith/cli.md“LangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.”
- [claimed-docs] https://docs.langchain.com/oss/python/langgraph/workflows-agents.md“Trace and compare these workflow patterns with LangSmith... Follow the tracing quickstart to see how data flows through each step.”
Automation = 10.2 ÷ 80 × 100 = 12.8