Langsmith Plans Pricing
LangSmith plans and pricing reconciled against the LangChain pricing page. LangSmith is sold as part of the broader LangChain platform, and pricing is per-seat plus pay-as-you-go trace and Fleet (agent deployment) consumption.
Langsmith Plans Pricing is the machine-readable pricing-plan profile for LangSmith on the APIs.io network, conforming to the API Commons Plans specification.
It defines 3 plans, covering free, paid, and enterprise tiers, with named plans including Developer, Plus, Enterprise.
Tagged areas include AI, LLM, Observability, Evaluations, and LangChain.
Plans
Free entry tier for individuals, hobby projects, and POCs. Pay-as-you-go for overage traces.
- Tracing
- Monitoring
- Evaluation
- Prompt Hub
- Playground
- Community Support
Per-seat plan for production teams. Includes unlimited team seats, larger trace allowance, and one development-sized agent deployment.
- Email Support
- Unlimited Team Seats
- 1 Free Development-Sized Deployment
- Up to 3 Workspaces
- Unlimited Fleet Agents
Custom contract pricing for large organizations. Includes hybrid/self-hosted deployment, SSO, dedicated support, and custom limits.
- All Plus Features
- Hybrid and Self-Hosted Hosting
- Custom SSO and RBAC
- Dedicated Support and SLAs
- Team Training
- Custom Trace Limits and Fleet Packages
Sources
Work with this as data
Every plan here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for plans
4 MCP tools reach this
find_plansBrowse and filter every plan in the catalog.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
curl "https://apis.io/api/v1/plans/langsmith-plans-pricing"curl "https://apis.io/api/v1/plans?limit=25"Discovery needs no key. Ratings and market analysis are Pro.