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LangSmith vs n8n

LangSmith

Platform for observing, evaluating, and deploying agents

n8n

Platform for AI agents and workflows you can see and control, built visually or with code

Short answer

LangChain describes LangSmith as a framework-agnostic platform for observing, evaluating, and deploying agents; n8n says it is for building AI agents and workflows, visually or with code.⁠Source 1, Source 2 LangSmith has a free Developer seat, per-seat Plus pricing plus metered usage, and self-hosting on Enterprise; n8n prices by workflow executions, and its self-hosted Community edition is free.⁠Source 3, Source 4, Source 5, Source 6

By Blocks.ai teamLast checked

Where each one sits

Six layers of running AI agents at a company, and what each product’s own public sources say it covers.

These aren’t the same kind of product

Where they overlap
Both can build agents and run them, in the vendor’s cloud or self-hosted, and both can expose agents or tools to MCP clients.⁠Source 2, Source 4, Source 7, Source 8, Source 9, Source 10, Source 11
Where they differ
LangSmith runs agents from many frameworks and can trace agents hosted elsewhere.⁠Source 4, Source 12 n8n’s homepage says you can plug AI into over 500 integrations; its dedicated Agents feature is in preview.⁠Source 2, Source 13
Running both
n8n documents using them together: LangSmith tracing is available on all self-hosted n8n editions, but not on n8n Cloud.⁠Source 14
Public sources · checked 2 October 2026
  • Offered
  • Preview
  • Not publicly documented

LangSmith

  • Build agents: OfferedFleet agent builder⁠Source 7
  • Host and run agents: OfferedLangSmith Deployment runtime⁠Source 8
  • Identity and access: OfferedFleet per-agent permissions⁠Source 15
  • Registry and governance: OfferedCentralized registry in Deployment⁠Source 16
  • Traffic between agents, tools, and models: OfferedFleet forwards MCP tool calls⁠Source 17
  • Agents across organizations: Not publicly documented

n8n

  • Build agents: OfferedLangChain-based AI Agent node⁠Source 14
  • Host and run agents: OfferedYour infrastructure or n8n’s⁠Source 2
  • Identity and access: Not publicly documented
  • Registry and governance: PreviewAgents stored in projects⁠Source 13
  • Traffic between agents, tools, and models: OfferedMCP client for external tools⁠Source 18
  • Agents across organizations: Not publicly documented

At a glance

TopicLangSmithn8n
What it isLangChain’s platform for observing, evaluating, and deploying agents, with Fleet for building agents without code.⁠Source 1, Source 7n8n says it is for building AI agents and workflows, visually or with code.⁠Source 2
Where it runsLangChain’s cloud on GCP or AWS, or BYOC on AWS.⁠Source 4, Source 19, Source 20 BYOC, and self-hosted or hybrid, are on Enterprise; self-hosting Fleet is in beta.⁠Source 3, Source 4, Source 7n8n Cloud, currently hosted in the EU, or self-hosted on your own infrastructure.⁠Source 10, Source 21, Source 22 The self-hosted Community edition is free.⁠Source 6
Pricing modelPlus is $39 per seat a month; usage is metered in LSUs, $1 each.⁠Source 3 The Developer plan has one free seat; Enterprise is through sales.⁠Source 3By monthly workflow executions, with unlimited users on paid plans.⁠Source 5 In preview, one agent turn counts as one execution.⁠Source 13
Agents built elsewhereDeployment runs agents from other frameworks, and agents hosted elsewhere can send traces to LangSmith.⁠Source 4, Source 12The MCP Server Trigger node can expose n8n tools to external AI agents.⁠Source 18 Managing agents built outside n8n is not publicly documented.
MaturityLangChain announced GA of LangGraph Platform (now Deployment) in May 2025 and Agent Builder (now Fleet) in January 2026.⁠Source 16, Source 23, Source 24, Source 25A stable version for production and a new minor version most weeks.⁠Source 26 The Agents feature is in preview.⁠Source 13

What each one is

LangSmith

LangChain describes LangSmith as a framework-agnostic platform for observing, evaluating, and deploying agents.⁠Source 1 Its Deployment service runs agents in production on managed infrastructure, and its Fleet service lets teams create and manage agents without code.⁠Source 7, Source 8

n8n

n8n says it is for building AI agents and workflows, visually or with code, on n8n Cloud or self-hosted.⁠Source 2, Source 10 A dedicated Agents feature, in preview, keeps agents in a project alongside workflows.⁠Source 13

The differences that matter

  1. How agents are built

    LangSmith

    Fleet builds agents from a description, without code; developers deploy code agents, from LangChain or other frameworks, to Deployment.⁠Source 7, Source 8, Source 12

    n8n

    Agents are built in visual workflows with LangChain-based AI nodes and JavaScript or Python; n8n’s Agent Builder is in preview.⁠Source 2, Source 13, Source 14

  2. Tracing and monitoring

    LangSmith

    Each deployment gets a tracing project, and agents running elsewhere can send traces to LangSmith, including over OpenTelemetry.⁠Source 4, Source 27, Source 28

    n8n

    Insights shows admins how workflows perform over time; OpenTelemetry tracing is in preview, and n8n advises against relying on it in production.⁠Source 29, Source 30

    LangSmith keeps base traces for 14 days and extended traces for 180 days.⁠Source 3

  3. Who can use an agent

    LangSmith

    Fleet has per-agent Clone, Run, and Edit permissions; agents can be private, shared with people, or shared workspace-wide.⁠Source 15, Source 31

    n8n

    Project roles set what users can do in a project (self-hosted Community must be registered); in preview, access to agents follows n8n roles.⁠Source 32, Source 33

    LangSmith’s workspace RBAC is an Enterprise feature.⁠Source 34 A Fleet agent can use fixed credentials or those of the user interacting with it; in preview, n8n agent tools use attached credentials.⁠Source 33, Source 35

For security teams

What a security review asks, answered from each vendor’s public documentation.

TopicLangSmithn8n
Network exposureEnterprise customers can reach LangSmith Cloud privately over AWS PrivateLink or GCP Private Service Connect.⁠Source 19Can self-host on premises or in a private cloud; n8n says cloud-based MCP clients need the instance publicly accessible.⁠Source 22, Source 36
IdentityHosted Agent Servers use LangSmith API keys by default, or your auth handler.⁠Source 37 Cloud Enterprise adds SAML SSO and SCIM.⁠Source 38SAML sign-in on Business and Enterprise plans, OIDC on Enterprise.⁠Source 39, Source 40 Per-agent identity from n8n is not publicly documented.
Access changes and revocationFleet sharing can be revoked at any time.⁠Source 41 Admins can deactivate or delete any member’s personal access token.⁠Source 42n8n disconnects a revoked OAuth MCP client at once.⁠Source 36 In preview, unpublishing stops users, channels, and schedules running an agent.⁠Source 13
Audit trailEnterprise audit logs record admin and configuration actions, kept up to 400 days.⁠Source 43 Fleet traces capture agents’ tool calls.⁠Source 41Enterprise plans can stream events to syslog, a webhook, or Sentry.⁠Source 44 In preview, agent conversations are kept as sessions.⁠Source 13
ComplianceLangChain says LangSmith has a SOC 2 Type 2 report, ISO 27001, and HIPAA and GDPR compliance.⁠Source 45, Source 46n8n says the company holds a SOC 2 Type 2 report, available to enterprise customers; others get SOC 3.⁠Source 21, Source 47

Full comparison

18 criteria in five groups. Every cell links to its source, or says no public source answers it.

LangSmith and n8n compared on 18 criteria
LangSmithn8n
What it is
What it is and who it’s forLangChain calls LangSmith a framework-agnostic platform for observing, evaluating, and deploying agents.⁠Source 1 In Fleet, teams create and manage agents without code.⁠Source 7n8n says it is for building AI agents and workflows, visually or with code.⁠Source 2 It runs on n8n Cloud (fully managed) or self-hosted.⁠Source 10
MaturityLangChain announced GA of LangGraph Platform (now Deployment) on 14 May 2025 and Agent Builder (now Fleet) on 13 January 2026.⁠Source 16, Source 23, Source 24, Source 25The Agents feature is in preview; n8n’s changelog dates it to September 2026.⁠Source 13, Source 26 n8n ships a new minor version most weeks.⁠Source 26
Control
Agent registry and discoveryLangChain says Deployment manages agents in a centralized registry with versioning and rollbacks.⁠Source 16, Source 48 Listing agents hosted elsewhere is not publicly documented.In preview, agents live in an n8n project alongside workflows.⁠Source 13 A registry of agents built outside n8n is not publicly documented.
Identity and access controlHosted Agent Servers use LangSmith API keys by default, or your auth handler.⁠Source 37 Fleet has per-agent Clone, Run, and Edit permissions.⁠Source 15 Cloud Enterprise: SAML SSO.⁠Source 38Project roles set what a user can do in a project (self-hosted Community must be registered).⁠Source 32 SAML on Business and Enterprise, OIDC on Enterprise.⁠Source 39, Source 40
Ownership, policy, and revocationFleet shows each agent’s owner, sharing can be revoked at any time, and agents can be set to pause for approval.⁠Source 25, Source 41 Workspace admins can set spend limits.⁠Source 49AI Agent nodes can require human approval before a tool runs.⁠Source 50 In preview, unpublishing an agent stops users, channels, and schedules running it.⁠Source 13
Audit log and observabilityEnterprise audit logs of admin and configuration actions, kept up to 400 days, in OCSF format.⁠Source 43 Fleet traces record tool calls, decisions, and outputs.⁠Source 41Enterprise plans can stream events to syslog, a webhook, or Sentry.⁠Source 44 In preview, each agent conversation is stored as a session, with the tools used.⁠Source 13
Connection
How agents connectAgent Server has an A2A endpoint.⁠Source 51 Enterprise customers can reach LangSmith Cloud over AWS PrivateLink or GCP Private Service Connect.⁠Source 19The MCP Server Trigger node exposes a URL.⁠Source 11 For cloud-based clients of the built-in MCP server, n8n says to make the instance publicly accessible.⁠Source 36
Agents across organizationsAgent Server agents can talk to other A2A-compatible agents; Fleet can share in your workspace.⁠Source 41, Source 51 A cross-organization access model is not publicly documented.The MCP Server Trigger node can expose n8n tools to external AI agents.⁠Source 18 A cross-organization access model is not publicly documented.
Protocol supportAgent Server supports A2A over JSON-RPC, with documented gaps, and can expose agents as MCP tools.⁠Source 9, Source 51 Fleet discovers tools from remote MCP servers.⁠Source 17Can act as an MCP server, through a trigger node or the built-in server, and as an MCP client.⁠Source 11, Source 18, Source 36 Built-in A2A support is not publicly documented.
Frameworks, models, and clouds supportedDeployment runs agents from other frameworks, such as Google ADK, CrewAI, and AutoGen.⁠Source 12 Agents hosted elsewhere can send traces to LangSmith.⁠Source 4AI nodes implement LangChain’s JavaScript framework, with your choice of agent, model, and memory.⁠Source 14 Managing agents built outside n8n is not publicly documented.
Operations
Deployment options and data residencyCloud on GCP (US, EU, APAC) or AWS (US).⁠Source 19 BYOC on AWS, or self-hosted or hybrid, on Enterprise; self-hosting Fleet is in beta.⁠Source 3, Source 4, Source 7, Source 20n8n Cloud runs on Microsoft Azure, currently in the EU, with data in Frankfurt.⁠Source 5, Source 21 Self-hosted data is wherever you host n8n.⁠Source 5
Compliance attestationsLangChain says LangSmith has a SOC 2 Type 2 report and is HIPAA and GDPR compliant.⁠Source 45 Its Trust Center lists ISO 27001:2022.⁠Source 46n8n says the company holds a SOC 2 Type 2 report, with annual independent audits.⁠Source 21, Source 47 Enterprise customers get the SOC 2 report; others, the SOC 3 report.⁠Source 21
Support and SLABase, Standard, and Premium support plans.⁠Source 52 For SaaS, LangChain commits to reasonable commercial efforts toward 99.5% API uptime.⁠Source 52Dedicated support, with guaranteed response times available through SLAs, is Enterprise-only.⁠Source 5 An uptime SLA percentage is not publicly documented.
Time and effort to get runningCloud deployment needs a Plus plan or above and an API key; LangChain says you can start in minutes.⁠Source 16, Source 53 Fleet agents start from a description or a template.⁠Source 7A 14-day Cloud trial with Pro features, or a one-step local setup that needs Docker.⁠Source 22, Source 54 Paid self-hosted plans activate with a license key.⁠Source 6
Pricing model and public pricesDeveloper: one free seat.⁠Source 3 Plus: $39 per seat a month, plus usage in LSUs at $1 each.⁠Source 3 Enterprise: through sales.⁠Source 3Paid plans: by workflow executions, unlimited users; Starter $20 and Pro $50 a month, billed annually.⁠Source 5 Self-hosted Community free; Enterprise through sales.⁠Source 5, Source 6
Building
Agent building toolsFleet builds agents from a description, without code, and can export them to Deep Agents code.⁠Source 7, Source 15 Code-first agents can be deployed with the LangGraph CLI.⁠Source 8A visual editor with JavaScript or Python anywhere in a workflow, LangChain-based AI nodes, and n8n’s Agent Builder, in preview.⁠Source 2, Source 13, Source 14
Model accessLangChain says LangSmith works with closed or open models.⁠Source 1 Fleet offers managed Fast, Pro, and Max tiers; the model behind each tier may change.⁠Source 55Connects LLM providers such as OpenAI, Anthropic, and Google, and can combine several models in one workflow.⁠Source 56 Bring-your-own-LLM uses your API credentials.⁠Source 57
Integrations and ecosystemFleet has built-in tools for Gmail, Slack, Google Calendar, GitHub, and more; LangChain says Fleet agents work inside Slack, Teams, and Gmail.⁠Source 55, Source 58n8n’s homepage says over 500 integrations, and n8n lists 600+ community-built templates for agentic workflows.⁠Source 2, Source 59

Which to choose

Choose LangSmith if

  • You write agents in code, with LangChain or frameworks such as CrewAI or Google ADK, and want a managed runtime for them.⁠Source 8, Source 12
  • You want to trace agents wherever they run, including agents hosted outside LangSmith, over OpenTelemetry or its framework integrations.⁠Source 4, Source 28, Source 60
  • You want non-technical teams to build agents by describing them in Fleet, then use them in Slack, Teams, or Gmail.⁠Source 1, Source 7, Source 58
  • Your agents need A2A: LangChain says Agent Server supports it, with documented gaps, and each assistant exposes an A2A Agent Card.⁠Source 51

Choose n8n if

  • You want to build agents and workflows visually, which n8n says it supports, with JavaScript or Python where you need it.⁠Source 2
  • You want to self-host for free: the Community edition runs on your own infrastructure, on premises, or in a private cloud.⁠Source 6, Source 22
  • Your agents need ready-made connections: n8n’s homepage says over 500 integrations, and every paid plan includes every integration.⁠Source 2, Source 5
  • You want pricing by workflow executions with unlimited users on paid plans, and Cloud prices from $20 a month, billed annually.⁠Source 5

Questions buyers ask

Is n8n built on LangChain?

n8n’s AI nodes implement LangChain’s JavaScript framework, and each node lets you choose your own agent, model, memory, and other components.⁠Source 14 LangSmith is LangChain’s platform for observing, evaluating, and deploying agents, which LangChain says is framework-agnostic.⁠Source 1

Can I self-host LangSmith or n8n?

Yes, both can be self-hosted.⁠Source 4, Source 10 Self-hosted LangSmith is on the Enterprise plan and needs egress to beacon.langchain.com unless in offline mode.⁠Source 4, Source 61 n8n’s self-hosted Community edition is free.⁠Source 6 Air-gapped self-hosted n8n installs use a license certificate; otherwise the license key must ping n8n’s license server daily.⁠Source 5, Source 62

Do LangSmith and n8n support MCP and A2A?

LangChain says Agent Server supports A2A, with documented gaps, and can expose agents as MCP tools; Fleet uses tools from remote MCP servers.⁠Source 9, Source 17, Source 51 n8n can act as an MCP server and an MCP client.⁠Source 11, Source 18 Built-in A2A support in n8n is not publicly documented.

How is each one priced?

LangSmith’s Developer plan has one free seat, and Plus is $39 per seat a month; usage is metered in LSUs, $1 each, and Enterprise is through sales.⁠Source 3 n8n prices by workflow executions, with unlimited users on paid plans; Starter is $20 a month, billed annually.⁠Source 5

How we compare

Read the full method

Every claim on this page links to a public source. Where none answers a question, the page says so.

We re-check every fact at least every 90 days. This page was last checked .

Something wrong or out of date? Tell us and we’ll correct it.

Sources

67 public sources, each with the date we checked it. Every one opens in a new tab.

  1. Source 1: LangSmith: The Agent Engineering Platform LangChain · checked Back:abcdefg

  2. Source 2: AI Workflow Automation Platform - n8n n8n · checked Back:abcdefghijkl

  3. Source 3: LangSmith Plans and Pricing LangChain · checked Back:abcdefghij

  4. Source 4: Set up LangSmith LangChain · checked Back:abcdefghijkl

  5. Source 5: n8n Plans and Pricing n8n · checked Back:abcdefghijk

  6. Source 6: Compare editions n8n · checked Back:abcdef

  7. Source 7: No-code agents with LangSmith Fleet LangChain · checked Back:abcdefghijk

  8. Source 8: LangSmith Deployment LangChain · checked Back:abcdef

  9. Source 9: MCP endpoint in Agent Server LangChain · checked Back:abc

  10. Source 10: Choose how to use n8n n8n · checked Back:abcde

  11. Source 11: MCP Server Trigger n8n · checked Back:abcd

  12. Source 12: Deploy other frameworks LangChain · checked Back:abcde

  13. Source 13: Build and manage agents n8n · checked Back:abcdefghijklm

  14. Source 14: LangChain in n8n n8n · checked Back:abcdefgh

  15. Source 15: Agent platform comparison LangChain · checked Back:abcd

  16. Source 16: LangSmith Deployment LangChain · checked Back:abcde

  17. Source 17: Remote MCP servers LangChain · checked Back:abc

  18. Source 18: MCP Client Tool n8n · checked Back:abcde

  19. Source 19: Cloud (SaaS) LangChain · checked Back:abcd

  20. Source 20: Bring Your Own Cloud (BYOC) LangChain · checked Back:ab

  21. Source 21: Security at n8n n8n · checked Back:abcde

  22. Source 22: Host n8n n8n · checked Back:abcd

  23. Source 23: LangGraph Platform is now Generally Available: Deploy & manage long-running, stateful Agents LangChain · checked Back:ab

  24. Source 24: Now GA: LangSmith Agent Builder LangChain · checked Back:ab

  25. Source 25: LangSmith Fleet changelog LangChain · checked Back:abc

  26. Source 26: Changelog n8n · checked Back:abc

  27. Source 27: LangSmith control plane LangChain · checked Back to text

  28. Source 28: Trace with OpenTelemetry LangChain · checked Back:ab

  29. Source 29: Track usage with Insights n8n · checked Back to text

  30. Source 30: Trace executions with OpenTelemetry n8n · checked Back to text

  31. Source 31: Manage agent settings LangChain · checked Back to text

  32. Source 32: Set permissions and roles (RBAC) n8n · checked Back:ab

  33. Source 33: Introducing n8n Agents n8n · checked Back:ab

  34. Source 34: Role-based access control LangChain · checked Back to text

  35. Source 35: Agent identity LangChain · checked Back to text

  36. Source 36: Connect to n8n MCP server n8n · checked Back:abcd

  37. Source 37: Authentication & access control LangChain · checked Back:ab

  38. Source 38: Authentication methods LangChain · checked Back:ab

  39. Source 39: Set up SAML n8n · checked Back:ab

  40. Source 40: Set up OIDC n8n · checked Back:ab

  41. Source 41: Access & oversight LangChain · checked Back:abcde

  42. Source 42: Overview (administration) LangChain · checked Back to text

  43. Source 43: Audit logs LangChain · checked Back:ab

  44. Source 44: Stream logs to external systems n8n · checked Back:ab

  45. Source 45: Regions FAQ LangChain · checked Back:ab

  46. Source 46: Trust Center - LangChain LangChain · checked Back:ab

  47. Source 47: n8n Trust Center n8n · checked Back:ab

  48. Source 48: Assistants LangChain · checked Back to text

  49. Source 49: Manage workspace administration LangChain · checked Back to text

  50. Source 50: Human-in-the-loop for tools n8n · checked Back to text

  51. Source 51: A2A endpoint in Agent Server LangChain · checked Back:abcde

  52. Source 52: Support Plans LangChain · checked Back:ab

  53. Source 53: Deploy your app to cloud LangChain · checked Back to text

  54. Source 54: Try free then choose a plan n8n · checked Back to text

  55. Source 55: Essentials LangChain · checked Back:ab

  56. Source 56: Integrate AI n8n · checked Back to text

  57. Source 57: n8n AI Terms n8n · checked Back to text

  58. Source 58: LangSmith Fleet LangChain · checked Back:ab

  59. Source 59: n8n AI agent builder n8n · checked Back to text

  60. Source 60: LangSmith Observability LangChain · checked Back to text

  61. Source 61: Egress for billing and operational telemetry LangChain · checked Back to text

  62. Source 62: Manage your license n8n · checked Back to text

  63. Source 63: Your company's private network Blocks.ai · checked Back to text

  64. Source 64: Network requirements Blocks.ai · checked Back to text

  65. Source 65: Solutions: Agent sprawl Blocks.ai · checked Back to text

  66. Source 66: Solutions: Partner networks Blocks.ai · checked Back to text

  67. Source 67: Pricing Blocks.ai · checked Back to text