agency-swarm

Agency Swarm is a Python framework for building multi-agent (swarm) applications by defining specialized agents, tool functions (Pydantic-typed), and directional inter-agent communication flows. It is built on top of the OpenAI Agents SDK / Responses API and provides helpers for running demos and persisting thread/state.

Evaluated Mar 29, 2026 (0d ago)
Homepage ↗ Repo ↗ Ai Ml ai-ml multi-agent orchestration python tools openai-agents
⚙ Agent Friendliness
63
/ 100
Can an agent use this?
🔒 Security
52
/ 100
Is it safe for agents?
⚡ Reliability
39
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
0
Documentation
75
Error Messages
0
Auth Simplicity
95
Rate Limits
10

🔒 Security

TLS Enforcement
70
Auth Strength
55
Scope Granularity
20
Dep. Hygiene
45
Secret Handling
70

The README suggests using an environment variable (OPENAI_API_KEY) loaded from .env, which is generally safer than hardcoding secrets. However, no explicit security best practices (logging redaction, threat model, or key management guidance) are provided in the supplied content. No information is given about rate-limit handling or safe error/log output.

⚡ Reliability

Uptime/SLA
0
Version Stability
60
Breaking Changes
50
Error Recovery
45
AF Security Reliability

Best When

You want to orchestrate multiple agent personas/workers within your own Python application using OpenAI-compatible model backends and you can define tools + communication flows in code.

Avoid When

You need an immediately deployable network API (REST/GraphQL) from this package itself, or you cannot supply and manage the required LLM credentials/tokens in your environment.

Use Cases

  • Multi-agent orchestration for task planning and execution (e.g., CEO/Developer/Assistant patterns)
  • Building tool-using agents with validated inputs via Pydantic-based tools
  • Persisting conversation threads across sessions with custom load/save callbacks
  • Generating agent communication topologies using directional communication flows

Not For

  • Projects needing a turnkey hosted service with no backend code
  • Systems requiring strict compliance features that are contractually guaranteed by the framework itself (none stated in provided material)
  • Integrations that require a dedicated REST/GraphQL API surface from Agency Swarm itself

Interface

REST API
No
GraphQL
No
gRPC
No
MCP Server
No
SDK
Yes
Webhooks
No

Authentication

Methods: OPENAI_API_KEY (environment variable)
OAuth: No Scopes: No

Authentication is implied via setting an OpenAI API key; no first-class OAuth/scoped auth model is described in the provided README.

Pricing

Free tier: No
Requires CC: No

Pricing for the framework itself is not stated (repo appears open-source under MIT). Runtime costs depend on the underlying LLM provider usage.

Agent Metadata

Pagination
none
Idempotent
False
Retry Guidance
Not documented

Known Gotchas

  • No explicit guidance in provided README on retry/idempotency semantics for agent runs.
  • When orchestrating multiple agents with directional flows, mis-specified flows can cause dead-ends or unexpected delegation loops (not discussed in provided material).
  • Thread persistence relies on user-provided load_threads_callback/save_threads_callback; incorrect implementations could corrupt state.

Alternatives

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Scores are editorial opinions as of 2026-03-29.

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