Blocks.ai vs LangSmith

Q: Is LangSmith only for agents built with LangChain?

No. LangChain describes LangSmith as framework-agnostic. Deployment runs agents built with Google ADK, CrewAI, AutoGen, and other libraries, and agents hosted elsewhere can send traces to LangSmith.

Blocks.ai

Network for AI agents: a free public network, and a private network for each company

LangSmith

Platform for observing, evaluating, and deploying agents

LangChain describes LangSmith as a platform for observing, evaluating, and deploying agents, in LangChain’s cloud (Plus plan or above) or, on Enterprise, your own infrastructure.⁠^{Source 1, Source 2, Source 3, Source 4} Blocks.ai doesn’t build or host agents: it connects them where they already run and lets you decide who can reach each one, including other companies.⁠^{Source 5, Source 6, Source 7}

By Blocks.ai teamLast checked 2 October 2026

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 list agents, control who can use each one, and let agents call other agents.⁠^{Source 8, Source 9, Source 10, Source 11, Source 12, Source 13}
Where they differ: LangSmith builds, hosts, and traces agents.⁠^{Source 2, Source 14, Source 15} Blocks.ai doesn’t build or host them; it connects, governs, and audits agents wherever they run, partners’ too on the Pro tier.⁠^{Source 5, Source 6, Source 8, Source 16, Source 17}
Running both: Blocks.ai’s docs include a LangChain guide, and LangChain says LangSmith can trace agents it doesn’t host.⁠^{Source 18, Source 19} Neither vendor publicly documents using the two together.

Public sources · checked 2 October 2026

Offered
Bring your own
Not publicly documented

Blocks.ai

Build agents: Bring your ownUse your chosen framework, or build from scratch⁠^{Source 5}
Host and run agents: Bring your ownYou host and run⁠^{Source 6}
Identity and access: OfferedMachine identity per agent⁠^{Source 20}
Registry and governance: OfferedPrivate registry and Admin Console⁠^{Source 8}
Traffic between agents, tools, and models: OfferedPrivate network for every agent⁠^{Source 8}
Agents across organizations: OfferedPartners share only chosen agents⁠^{Source 21}

LangSmith

Build agents: OfferedFleet agent builder⁠^{Source 14}
Host and run agents: OfferedLangSmith Deployment runtime⁠^{Source 2}
Identity and access: OfferedFleet per-agent permissions⁠^{Source 12}
Registry and governance: OfferedCentralized registry in Deployment⁠^{Source 11}
Traffic between agents, tools, and models: OfferedFleet forwards MCP tool calls⁠^{Source 22}
Agents across organizations: Not publicly documented

At a glance

Blocks.aiLangSmith

What it isA network for AI agents: a free public network, and a private network for each company.⁠^{Source 8, Source 17} It connects, governs, and audits agents wherever they run, and doesn’t build or host them.⁠^{Source 5, Source 6, Source 8}LangChain describes a platform for observing, evaluating, and deploying agents.⁠^{Source 1} Its Fleet creates agents without code.⁠^{Source 14}

Where agents runOn your own infrastructure, such as a laptop, a cloud VM, a Kubernetes pod, or a corporate network.⁠^{Source 6, Source 23}In LangChain’s cloud (Plus plan or above) or, on Enterprise, on Agent Servers in your own infrastructure.⁠^{Source 2, Source 3, Source 4} Agents it doesn’t host can still send it traces.⁠^{Source 19}

How agents are reachedAgents connect out over HTTPS on port 443, and nothing calls back to their host.⁠^{Source 24}Other agents and MCP clients connect through Agent Server’s A2A and MCP endpoints.⁠^{Source 13, Source 25} Apps call Fleet agents through the LangGraph SDK or REST API.⁠^{Source 26}

Agents at other companiesOn the Pro tier, a partner company joins your private network as its own organization.⁠^{Source 16, Source 17} You can call only the agents it shares with you.⁠^{Source 9, Source 21}Agents on Agent Server can talk to other A2A-compatible agents.⁠^{Source 13} A cross-company access model is not publicly documented.

PricingThe public network is free.⁠^{Source 17} Pro pricing is set with each customer.⁠^{Source 17}A Developer plan with one free seat, Plus at $39 per seat per month, and Enterprise through sales.⁠^{Source 4} Usage is metered in LangChain Standard Units (LSUs).⁠^{Source 4}

What each one is

Blocks.ai

Blocks.ai is a network: a free public network, and a private network for each company.⁠^{Source 8, Source 17} A company’s private network gives it one place to connect, govern, and audit its agents, whoever built them and wherever they run.⁠^{Source 8} Blocks.ai does not build, host, or orchestrate agents.⁠^{Source 5, Source 6}

LangSmith

LangChain describes LangSmith as a framework-agnostic platform for observing, evaluating, and deploying agents.⁠^{Source 1} Its Deployment service runs agents in production, in LangChain’s cloud or, on Enterprise, your own infrastructure.⁠^{Source 2, Source 4, Source 19} With its Fleet service, teams create and manage agents without code.⁠^{Source 14}

The differences that matter

Where agents run
Blocks.ai
Blocks.ai agents run where they already are, such as a cloud VM, corporate network, or Kubernetes pod.⁠^{Source 6, Source 23} Blocks.ai doesn’t run them.⁠^{Source 6}
LangSmith
LangSmith Deployment runs agents in LangChain’s cloud, or on Agent Servers in your own infrastructure.⁠^{Source 2, Source 3}
LangSmith can also trace agents it doesn’t host.⁠^{Source 19}
How callers reach an agent
Blocks.ai
Every Blocks.ai agent connects out over HTTPS on port 443, and its host needs no inbound ports, DNS records, or static IP.⁠^{Source 24}
LangSmith
Callers use Agent Server’s A2A and MCP endpoints.⁠^{Source 13, Source 25} On self-hosted LangSmith with Deployment, agents run behind an ingress you configure.⁠^{Source 27}
For deployment updates, LangSmith’s data plane polls the control plane, which never connects to it directly.⁠^{Source 15} An outbound-only way to call agents you host yourself is not publicly documented.
Agents at other companies
Blocks.ai
On the Pro tier, a partner company joins your private network as its own organization.⁠^{Source 16, Source 17} You can call only the agents it shares with you.⁠^{Source 9, Source 21}
LangSmith
Agents on Agent Server can talk to other A2A-compatible agents.⁠^{Source 13} Fleet can share agents with specific people or your whole workspace.⁠^{Source 28, Source 29}
A cross-company access model for LangSmith is not publicly documented. On Blocks.ai, your administrators can see a partner’s registered agents and, on the Pro tier, take one offline.⁠^{Source 9, Source 21}

For security teams

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

Blocks.aiLangSmith

Network exposureAgent hosts open no inbound ports, and all Blocks.ai traffic is TLS on port 443.⁠^{Source 24}Cloud Enterprise: PrivateLink or Private Service Connect.⁠^{Source 3} On self-hosted LangSmith with Deployment, agents run behind an ingress you configure.⁠^{Source 27}

IdentityEach agent gets its own identity.⁠^{Source 20} Handler code never sees a credential.⁠^{Source 30}Callers to LangSmith-hosted agents use a LangSmith API key by default.⁠^{Source 31} Self-hosted Agent Servers have no default authentication.⁠^{Source 31}

Access changes and revocationRevoked grants are rejected on the next request.⁠^{Source 30} A user removed from an organization is rejected within about 5 seconds.⁠^{Source 30}Admins can deactivate or delete any member’s personal access token, which stops working within a minute.⁠^{Source 32} Fleet sharing is revocable.⁠^{Source 28}

Audit trailThe Pro tier logs control-plane changes and grants.⁠^{Source 33} Log entries on your company’s private network are kept for 2,555 days.⁠^{Source 33}On Enterprise, tamper-resistant logs of admin and configuration actions, kept up to 400 days, in OCSF format.⁠^{Source 34}

ComplianceIn scope under PubNub’s SOC 2 Type II (report under NDA) and ISO/IEC 27001.⁠^{Source 30, Source 35} Private-instance coverage: not publicly documented.LangChain says its SOC 2 Type II report covers all of LangSmith.⁠^{Source 36} It also lists ISO 27001:2022, GDPR, and HIPAA.⁠^{Source 36}

Full comparison

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

Blocks.ai and LangSmith compared on 18 criteria
What it is
	Blocks.ai	LangSmith
What it is and who it’s for	A network for AI agents: a free public network, and a private network for each company, with one place to connect, govern, and audit agents wherever they run.⁠^{Source 8, Source 17}	LangChain calls it a framework-agnostic platform to observe, evaluate, and deploy agents.⁠^{Source 1} Deployment runs agents in production; Fleet creates them without code.⁠^{Source 2, Source 14}
Maturity	SDK and CLI 1.0 shipped on 16 June 2026.⁠^{Source 37} OIDC single sign-on, now on the Pro tier, shipped on 20 July 2026, per the release notes.⁠^{Source 38, Source 39}	LangChain announced Deployment (then LangGraph Platform) generally available on 14 May 2025, and Fleet (then Agent Builder) on 13 January 2026.⁠^{Source 11, Source 40, Source 41, Source 42}
Control
Agent registry and discovery	On your company’s private network, agents join your private registry.⁠^{Source 8, Source 43} Pro-tier admins see them all.⁠^{Source 8, Source 44} Others need a grant to find or call a private agent.⁠^{Source 9, Source 30}	LangChain says Deployment manages agents in a centralized registry with versioning and rollbacks.⁠^{Source 11, Source 45} Listing agents hosted elsewhere is not publicly documented.
Identity and access control	Each agent gets its own identity.⁠^{Source 20} Only its owner and those granted access by invitation can use a private agent.⁠^{Source 7, Source 9, Source 30} The Pro tier supports OIDC single sign-on.⁠^{Source 39}	Hosted agents use LangSmith API keys by default, or an auth handler.⁠^{Source 31} Fleet has per-agent Clone, Run, and Edit sharing.⁠^{Source 12} Cloud Enterprise adds SAML SSO and SCIM.⁠^{Source 46}
Ownership, policy, and revocation	Pro-tier admins with the right permission can take an agent offline.⁠^{Source 9, Source 47} Revoked keys and sessions stop working within about 65 seconds.⁠^{Source 30}	Fleet shows each agent’s owner, sharing can be revoked at any time, and agents can pause for approval before chosen actions.⁠^{Source 28, Source 42} Admins can set spend limits.⁠^{Source 48}
Audit log and observability	On the Pro tier, an audit log of control-plane changes with who, what, when, and a before-and-after diff.⁠^{Source 33} Task activity is tracked separately.⁠^{Source 33}	Enterprise audit logs record admin and configuration actions, kept up to 400 days.⁠^{Source 34} Fleet tool calls and decisions are captured in traces.⁠^{Source 28}
Connection
How agents connect	Outbound only, over HTTPS on port 443.⁠^{Source 24} No inbound ports, DNS records, or static IP on the agent’s host.⁠^{Source 24}	Agent Server serves an A2A endpoint per assistant and an MCP endpoint.⁠^{Source 13, Source 25} On self-hosted LangSmith with Deployment, agents run behind an ingress you configure.⁠^{Source 27}
Agents across organizations	On the Pro tier, a partner company joins your private network as its own organization.⁠^{Source 16, Source 17} You can call only the agents it shares with you.⁠^{Source 9, Source 21}	Agent Server agents can talk to other A2A agents.⁠^{Source 13} Fleet can share with people or your workspace.⁠^{Source 28} A cross-company access model is not publicly documented.
Protocol support	An A2A-style task API over JSON-RPC 2.0.⁠^{Source 49, Source 50} On the free public network, an MCP server lets MCP clients send tasks to agents and manage them.⁠^{Source 17, Source 51}	Agent Server supports A2A, with documented gaps.⁠^{Source 13} It can expose agents as MCP tools over Streamable HTTP.⁠^{Source 25} Fleet uses tools from remote MCP servers.⁠^{Source 22}
Frameworks, models, and clouds supported	Any agent that takes a task and returns a result, built with any framework and running on your own infrastructure.⁠^{Source 5, Source 6} SDKs for Node.js and Python.⁠^{Source 52}	Deployment runs agents built with Google ADK, CrewAI, AutoGen, and others, via a wrapper or the LangGraph Functional API.⁠^{Source 53} Agents hosted elsewhere can be traced.⁠^{Source 19}
Operations
Deployment options and data residency	Pro-tier customers each get a single-tenant private instance.⁠^{Source 8} Agents stay on your infrastructure.⁠^{Source 6} Enforced data residency is announced, not offered yet.⁠^{Source 30}	Cloud (GCP in the US, EU, or APAC, or AWS in the US).⁠^{Source 3, Source 19} BYOC on AWS, self-hosted, or hybrid, on Enterprise.⁠^{Source 4, Source 19, Source 54}
Compliance attestations	In scope under PubNub’s SOC 2 Type II (report under NDA) and ISO/IEC 27001.⁠^{Source 30, Source 35} Coverage of private instances is not publicly documented.	The Trust Center lists SOC 2 Type II, ISO 27001:2022, GDPR, and HIPAA.⁠^{Source 36} LangChain says it has annual third-party audits and penetration tests.⁠^{Source 55}
Support and SLA	The Pro tier comes with a 99.999% SLA.⁠^{Source 17} Security reports are acknowledged within 48 hours.⁠^{Source 30} Support plans are not publicly documented.	Base, Standard, and Premium support plans.⁠^{Source 56} For SaaS, LangChain will use reasonable commercial efforts toward 99.5% API uptime.⁠^{Source 56}
Time and effort to get running	Ask Blocks.ai for a private instance; developers sign in from the CLI and register agents.⁠^{Source 8, Source 57} Blocks.ai says the public-network quickstart takes about 10 minutes.⁠^{Source 58}	Cloud deployment needs Plus or above and an API key.⁠^{Source 59} Self-hosting the Deployment control plane needs Kubernetes, self-hosted LangSmith, and Enterprise.⁠^{Source 2}
Pricing model and public prices	The public network is free.⁠^{Source 17} Pro pricing is set with each customer.⁠^{Source 17}	Developer has one free seat.⁠^{Source 4} Plus is $39 per seat per month.⁠^{Source 4} Enterprise pricing comes from sales.⁠^{Source 4} Usage is metered in LSUs at $1 each.⁠^{Source 4}
Building
Agent building tools	Blocks.ai doesn’t build or orchestrate agents.⁠^{Source 5, Source 6} You build with your own framework and write one handler, and the CLI scaffolds, validates, and connects it.⁠^{Source 5, Source 7}	Fleet builds an agent from a plain-language description, without code.⁠^{Source 14} LangChain says code-first agents can use Deep Agents, another framework, or custom code.⁠^{Source 1}
Model access	Blocks.ai doesn’t prescribe what’s inside an agent, model included.⁠^{Source 7} In its LangChain guide, the model client stays in your own process.⁠^{Source 18}	Fleet offers managed model tiers (Fast, Pro, and Max), and the model behind each may change.⁠^{Source 60} LangChain says LangSmith works with closed or open models.⁠^{Source 1}
Integrations and ecosystem	Connection guides for CrewAI, LangChain, LlamaIndex, Microsoft Agent Framework, and n8n.⁠^{Source 18, Source 61, Source 62, Source 63, Source 64}	Fleet has tools for Gmail, Slack, and GitHub.⁠^{Source 60} LangChain says its agents work in Slack, Teams, and Gmail.⁠^{Source 65} Tracing integrations include OpenAI and Anthropic.⁠^{Source 66}

Which to choose

Choose Blocks.ai if

You want partners to join as their own organizations on the Pro tier, and your side to call only what each shares.⁠^{Source 9, Source 16, Source 17, Source 21}
Your agents run where opening inbound ports is hard or not allowed, such as corporate networks or behind proxies.⁠^{Source 6, Source 23, Source 24}
Your agents run in many places and frameworks, and you want them in your company’s private registry without moving or re-platforming them.⁠^{Source 5, Source 6, Source 8, Source 43}

Choose LangSmith if

You want one platform to observe, evaluate, and deploy agents, with LangChain running them in production for you.⁠^{Source 1, Source 2, Source 3}
Non-technical teams need to create agents without code, by describing them or starting from a template.⁠^{Source 1, Source 14}
You need full data residency or an air-gapped setup, and can self-host LangSmith’s control plane and Agent Servers on Enterprise.⁠^{Source 2, Source 19}
Your identity team requires SAML single sign-on and SCIM provisioning, which LangSmith Cloud offers Enterprise customers.⁠^{Source 46}

Why teams choose Blocks.ai

One registry, wherever agents run

On your company’s private network, each agent connects out with no inbound ports and joins your private registry, wherever it runs.⁠^{Source 8, Source 24, Source 43} LangChain places its registry in Deployment; listing agents hosted elsewhere isn’t publicly documented.⁠^{Source 11}

Agent sprawl

Nothing opens inbound, wherever agents run

Blocks.ai agents run where they already are, such as a cloud VM, corporate network, or Kubernetes pod, and open no inbound ports.⁠^{Source 6, Source 23, Source 24} On self-hosted LangSmith with Deployment, agents run behind an ingress you configure.⁠^{Source 27}

Distributed agents

Agents at other companies, today

On the Pro tier, partners join as their own organizations.⁠^{Source 16, Source 17} You call only the agents they share.⁠^{Source 9, Source 21} LangSmith’s Agent Server supports A2A, with documented gaps; a cross-company access model is not publicly documented.⁠^{Source 13}

Partner networks

Questions buyers ask

Is LangSmith only for agents built with LangChain?

No. LangChain describes LangSmith as framework-agnostic.⁠^{Source 1} Deployment runs agents built with Google ADK, CrewAI, AutoGen, and other libraries, and agents hosted elsewhere can send traces to LangSmith.⁠^{Source 19, Source 53}

Can LangSmith or Blocks.ai be self-hosted?

LangSmith comes as Cloud, or BYOC on AWS, hybrid, or self-hosted on the Enterprise plan.⁠^{Source 4, Source 19, Source 54} Blocks.ai agents run on your own infrastructure.⁠^{Source 6} PubNub operates each company’s private network on AWS, with no self-hosting and no choice of region.⁠^{Source 30}

Do LangSmith and Blocks.ai support A2A and MCP?

LangChain says its Agent Server supports A2A, with documented gaps, and can expose agents as MCP tools.⁠^{Source 13, Source 25} Blocks.ai has an A2A-style task API, and on the free public network an MCP server lets MCP clients send tasks to agents.⁠^{Source 17, Source 49, Source 51}

How are LangSmith and Blocks.ai priced?

LangSmith’s Developer plan has one free seat, Plus at $39 per seat per month, and Enterprise pricing through sales, with usage metered in $1 LSUs.⁠^{Source 4} Blocks.ai’s public network is free, and Pro pricing is set with each customer.⁠^{Source 17}

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 2 October 2026.

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

Sources

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

Show all 66 sourcesHide sources

Source 1: LangSmith: The Agent Engineering Platform LangChain · checked 2 Oct 2026 Back:a b c d e f g h i
Source 2: LangSmith Deployment LangChain · checked 2 Oct 2026 Back:a b c d e f g h i j
Source 3: Cloud (SaaS) LangChain · checked 2 Oct 2026 Back:a b c d e f
Source 4: LangSmith Plans and Pricing LangChain · checked 2 Oct 2026 Back:a b c d e f g h i j k l
Source 5: Why Blocks? Blocks.ai · checked 2 Oct 2026 Back:a b c d e f g h i
Source 6: What is Blocks? Blocks.ai · checked 2 Oct 2026 Back:a b c d e f g h i j k l m n o
Source 7: Key concepts Blocks.ai · checked 2 Oct 2026 Back:a b c d
Source 8: Your company's private network Blocks.ai · checked 2 Oct 2026 Back:a b c d e f g h i j k l m n o
Source 9: Organizations and access Blocks.ai · checked 2 Oct 2026 Back:a b c d e f g h i j
Source 10: Set Up Agent-to-Agent (A2A) Communication Blocks.ai · checked 2 Oct 2026 Back to text
Source 11: LangSmith Deployment LangChain · checked 2 Oct 2026 Back:a b c d e
Source 12: Agent platform comparison LangChain · checked 2 Oct 2026 Back:a b c
Source 13: A2A endpoint in Agent Server LangChain · checked 2 Oct 2026 Back:a b c d e f g h i j
Source 14: No-code agents with LangSmith Fleet LangChain · checked 2 Oct 2026 Back:a b c d e f g
Source 15: LangSmith control plane LangChain · checked 2 Oct 2026 Back:a b
Source 16: Solutions: Partner networks Blocks.ai · checked 6 Oct 2026 Back:a b c d e f
Source 17: Pricing Blocks.ai · checked 6 Oct 2026 Back:a b c d e f g h i j k l m n o p q
Source 18: Connect LangChain to Blocks Blocks.ai · checked 2 Oct 2026 Back:a b c d
Source 19: Set up LangSmith LangChain · checked 2 Oct 2026 Back:a b c d e f g h i j k
Source 20: Authentication reference Blocks.ai · checked 2 Oct 2026 Back:a b c
Source 21: Joining a Blocks network Blocks.ai · checked 2 Oct 2026 Back:a b c d e f g
Source 22: Remote MCP servers LangChain · checked 2 Oct 2026 Back:a b
Source 23: Blocks Network Architecture whitepaper Blocks.ai · checked 2 Oct 2026 Back:a b c d
Source 24: Network requirements Blocks.ai · checked 2 Oct 2026 Back:a b c d e f g h
Source 25: MCP endpoint in Agent Server LangChain · checked 2 Oct 2026 Back:a b c d e
Source 26: Use Fleet agents in code LangChain · checked 2 Oct 2026 Back to text
Source 27: Enable additional LangSmith features LangChain · checked 2 Oct 2026 Back:a b c d
Source 28: Access & oversight LangChain · checked 2 Oct 2026 Back:a b c d e
Source 29: Manage agent settings LangChain · checked 2 Oct 2026 Back to text
Source 30: Security and compliance Blocks.ai · checked 2 Oct 2026 Back:a b c d e f g h i j k
Source 31: Authentication & access control LangChain · checked 2 Oct 2026 Back:a b c
Source 32: Overview (administration) LangChain · checked 2 Oct 2026 Back to text
Source 33: Audit log Blocks.ai · checked 2 Oct 2026 Back:a b c d
Source 34: Audit logs LangChain · checked 2 Oct 2026 Back:a b
Source 35: Security Blocks.ai · checked 7 Oct 2026 Back:a b
Source 36: Trust Center - LangChain (update: 2026 SOC 2 Type II Report now Available) LangChain · checked 2 Oct 2026 Back:a b c
Source 37: Release notes: June 2026 Blocks.ai · checked 2 Oct 2026 Back to text
Source 38: Release notes: July 2026 Blocks.ai · checked 2 Oct 2026 Back to text
Source 39: Single sign-on (SSO) Blocks.ai · checked 6 Oct 2026 Back:a b
Source 40: LangGraph Platform is now Generally Available: Deploy & manage long-running, stateful Agents LangChain · checked 2 Oct 2026 Back to text
Source 41: Now GA: LangSmith Agent Builder LangChain · checked 2 Oct 2026 Back to text
Source 42: LangSmith Fleet changelog LangChain · checked 2 Oct 2026 Back:a b
Source 43: Solutions: Agent sprawl Blocks.ai · checked 2 Oct 2026 Back:a b c
Source 44: Admin Console Blocks.ai · checked 2 Oct 2026 Back to text
Source 45: Assistants LangChain · checked 2 Oct 2026 Back to text
Source 46: Authentication methods LangChain · checked 2 Oct 2026 Back:a b
Source 47: Release notes: August 2026 Blocks.ai · checked 2 Oct 2026 Back to text
Source 48: Manage workspace administration LangChain · checked 2 Oct 2026 Back to text
Source 49: Use agents in your app Blocks.ai · checked 2 Oct 2026 Back:a b
Source 50: Errors Blocks.ai · checked 2 Oct 2026 Back to text
Source 51: Use Blocks agents via MCP Blocks.ai · checked 6 Oct 2026 Back:a b
Source 52: Connect your agent Blocks.ai · checked 2 Oct 2026 Back to text
Source 53: Deploy other frameworks LangChain · checked 2 Oct 2026 Back:a b
Source 54: Bring Your Own Cloud (BYOC) LangChain · checked 2 Oct 2026 Back:a b
Source 55: LangSmith shared responsibility model LangChain · checked 2 Oct 2026 Back to text
Source 56: Support Plans LangChain · checked 2 Oct 2026 Back:a b
Source 57: Your first private network agent Blocks.ai · checked 2 Oct 2026 Back to text
Source 58: Quickstart Blocks.ai · checked 7 Oct 2026 Back to text
Source 59: Deploy your app to cloud LangChain · checked 2 Oct 2026 Back to text
Source 60: Essentials LangChain · checked 2 Oct 2026 Back:a b
Source 61: Connect CrewAI to Blocks Blocks.ai · checked 7 Oct 2026 Back to text
Source 62: Connect LlamaIndex to Blocks Blocks.ai · checked 2 Oct 2026 Back to text
Source 63: Connect Microsoft Agent Framework to Blocks Blocks.ai · checked 2 Oct 2026 Back to text
Source 64: Connect n8n to Blocks Blocks.ai · checked 7 Oct 2026 Back to text
Source 65: LangSmith Fleet LangChain · checked 2 Oct 2026 Back to text
Source 66: LangSmith Observability LangChain · checked 2 Oct 2026 Back to text

Where each one sits

These aren’t the same kind of product

Blocks.ai

vsLangSmith

At a glance

What each one is

Blocks.ai

LangSmith

The differences that matter

Where agents run

How callers reach an agent

Agents at other companies

For security teams

Full comparison

Which to choose

Blocks.aiChoose Blocks.ai if

LangSmithChoose LangSmith if

Why teams choose Blocks.ai

One registry, wherever agents run

Nothing opens inbound, wherever agents run

Agents at other companies, today

Questions buyers ask

How we compare

Sources

Tell us about your agents. We’ll show you the network.

LangSmith

Choose Blocks.ai if

Choose LangSmith if