Anter

Free plan APISelf-hostedWeb

What Anter is

Anter is a managed platform for engineering teams that build and deploy multi-agent workflows as streaming APIs. Named sub-agents can transfer or delegate work through validated routing graphs, with an audit trail for each hop. The platform supports OpenAI, Anthropic, Azure OpenAI and Google model providers, plus MCP servers, REST APIs and HTTP tools. A project-key endpoint streams responses over SSE and can replay runs from an index. Execution traces, OpenTelemetry spans, metrics and checkpoint replay provide observability. Anter’s managed multi-tenant cloud is available today; single-tenant, VPC and self-hosted deployments can be planned through an engagement. Its MCP server connects with Claude Code, Claude Desktop, OpenCode and Cursor to manage and run agents. The maker says secrets are encrypted at rest with AES-256-GCM, traffic uses TLS, and execution has tenant isolation and sandboxed boundaries. Customer prompts, run logs and configurations are not used to train internal foundation models. Starting use includes 1M free tokens without a credit card; afterward, users bring their own model key.

Who it suits

It is aimed at engineering teams needing coordinated multi-agent workflows, streaming APIs and execution observability. Teams can choose managed cloud or discuss self-hosted and dedicated deployments.

What it does well

Validated routing between named sub-agents
Supports four listed model providers
Streaming SSE API with replay
Traces, metrics and checkpoint replay
1M free tokens to start

What to know first

Not SOC 2 certified today
Beyond free tokens, users bring their own model key
Dedicated or self-hosted deployments require an engagement

Plans

Plan	Billed and limits	Price
Design Partner Program	Early access · Custom integrations · Priority feature development · Dedicated Slack support	On request

As anter.ai lists them, read 11 Oct 2026. The maker's own page has the final word.

Verdict

Anter focuses on infrastructure for orchestrated agent systems rather than end-user chat. Its routing, streaming and observability features suit engineering-led deployments, with compliance and deployment details requiring review.

Facts from Anter's own pages

Agent routing: The platform supports transfer and delegation between named sub-agents, with validated routing graphs and per-hop audit trails. · anter.ai, 11 Oct 2026
API and streaming: Anter provides a project-key API endpoint that streams agent responses using SSE and supports replaying runs from an index. · anter.ai, 11 Oct 2026
Compliance limit: Anter says it is not SOC 2 certified today; SOC 2 Type II commitments can be scoped with design partners. · anter.ai, 11 Oct 2026
Data use: Anter says it does not use customer prompts, run logs, or configurations to train internal foundation models. · anter.ai, 11 Oct 2026
Deployment: Anter says its managed multi-tenant cloud is available today and that single-tenant and VPC or self-hosted deployments can be planned through an engagement. · anter.ai, 11 Oct 2026
Free usage: Anter says it is free to start with no credit card and includes 1M free tokens, after which users bring their own model key. · anter.ai, 11 Oct 2026
Intended users: Anter describes its product as AI agent infrastructure for engineering teams. · anter.ai, 11 Oct 2026
LLM providers: The site lists OpenAI, Anthropic, Azure OpenAI, and Google as supported model providers. · anter.ai, 11 Oct 2026
MCP clients: Anter's MCP server can connect to clients including Claude Code, Claude Desktop, OpenCode, and Cursor to manage and run agents. · anter.ai, 11 Oct 2026
Observability: Anter provides execution traces, OpenTelemetry spans, metrics, and replay from checkpoints. · anter.ai, 11 Oct 2026
Product: Anter is a managed platform for building, orchestrating, and deploying multi-agent workflows as streaming APIs. · anter.ai, 11 Oct 2026
Security: The privacy policy states that secrets are encrypted at rest with AES-256-GCM, data in transit uses TLS, and execution uses tenant isolation and sandboxed boundaries. · anter.ai, 11 Oct 2026
Support: Design partners receive a dedicated Slack Connect channel and white-glove architecture onboarding with Anter engineers. · anter.ai, 11 Oct 2026
Tools and integrations: Agents can connect to MCP servers, REST APIs, and HTTP tools. · anter.ai, 11 Oct 2026