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Rank #4 of 9 in Agent Frameworks & SDKs

Google ADK logo

Google ADK

Open Source

Google

21.5k14.8k/yr +116pypi/wk +242.5k

Google ships more than one product — each judged line competes in its own arena on the same stories as everyone else.

Not yet judged (4 — no arena where they compete): Google AI Studio · Flow · Gemini in Chrome · Gemini Code Assist

Verified integrations

Connections to other tracked products — hover a chip for the verbatim evidence quote behind it.

By theme — the product's score on each story themeBy theme

Agenticness — how well agents can access and operate the productAgenticnessevidence →

How well agents can access and operate the product

32.5/100

Agents tools — stories about agents tools in this arenaAgents toolsevidence →

Stories about agents tools in this arena

45.3/100

Automation depth — how much of the product can run unattendedAutomation depthevidence →

How much of the product can run unattended

30.8/100

Deployment portability — stories about deployment portability in this arenaDeployment portabilityevidence →

Stories about deployment portability in this arena

80.0/100

Evals observability — stories about evals observability in this arenaEvals observabilityevidence →

Stories about evals observability in this arena

44.3/100

Guardrails safety — stories about guardrails safety in this arenaGuardrails safetyevidence →

Stories about guardrails safety in this arena

27.6/100

Human in the loop — stories about human in the loop in this arenaHuman in the loopevidence →

Stories about human in the loop in this arena

80.0/100

Memory context — stories about memory context in this arenaMemory contextevidence →

Stories about memory context in this arena

44.0/100

Openness — open source, data portability, and self-hosting storiesOpennessevidence →

Open source, data portability, and self-hosting stories

62.9/100

Orchestration multi agent — stories about orchestration multi agent in this arenaOrchestration multi agentevidence →

Stories about orchestration multi agent in this arena

90.0/100

Privacy posture — data-handling and privacy storiesPrivacy postureevidence →

Data-handling and privacy stories

0.0/100

State durability — stories about state durability in this arenaState durabilityevidence →

Stories about state durability in this arena

7.2/100

Streaming output — stories about streaming output in this arenaStreaming outputevidence →

Stories about streaming output in this arena

12.0/100

Story verdicts — every judged story with its evidenceStory verdicts

?

Sorted by importance (agentic first) (high → low) · 51/51 stories · click a row’s chevron for the rationale and evidence

Plug MCP servers into this product so it can use their tools G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness3full8/10C

Connect an agent via an official MCP server G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness3partial6/10C

Drive the product through a documented public API G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness3partial6/10T

Delegate tasks to a built-in AI assistant inside the product G

Agentic features

ai-native userAgenticness — how well agents can access and operate the productAgenticness3none0/10

Build against official SDKs G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness2full9/10C

Run the product headlessly / in CI for automation G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness2full8/10C

Use an official CLI G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness2full8/10C

Set up automations that run autonomously in the background G

Agentic features

ai-native userAgenticness — how well agents can access and operate the productAgenticness2partial6/10C

Operate the product with natural-language commands G

Agentic features

ai-native userAgenticness — how well agents can access and operate the productAgenticness2partial5/10C

Point an agent at llms.txt or agent-oriented docs G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness2disputed3/10D

Download a machine-readable API spec (OpenAPI or equivalent) G

Api quality

ai-native userAgenticness — how well agents can access and operate the productAgenticness2none0/10

Explore an interactive API reference with runnable examples G

Api quality

ai-native userAgenticness — how well agents can access and operate the productAgenticness2none0/10

Rely on versioned APIs with a documented deprecation policy G

Api quality

ai-native userAgenticness — how well agents can access and operate the productAgenticness2none0/10

Subscribe to events via webhooks G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness2none0/10

Get AI-generated insights and suggestions from my data inside the product G

Agentic features

ai-native userAgenticness — how well agents can access and operate the productAgenticness2n/auntestednone yet

Issue scoped/least-privilege API credentials for an agent G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness2noneuntestednone yet

Test against a sandbox environment without touching production data G

Api quality

ai-native userAgenticness — how well agents can access and operate the productAgenticness1partial5/10C

Orchestrate multiple agents — handoffs, subagents, or crews — inside one workflow C

Multi agent

developerOrchestration multi agent — stories about orchestration multi agent in this arenaOrchestration multi agent3full9/10C

Pause an agent mid-run for human input or approval and resume with the human's decision C

Approval flows

developerHuman in the loop — stories about human in the loop in this arenaHuman in the loop3full8/10C

Self-host the core product G

ai-native userOpenness — open source, data portability, and self-hosting storiesOpenness3full8/10C

Swap the underlying LLM provider or model without rewriting my agent C

Portability

developerDeployment portability — stories about deployment portability in this arenaDeployment portability3full8/10C

Define rules that trigger actions automatically on events G

ai-native userAutomation depth — how much of the product can run unattendedAutomation depth3full7/10C

Define an agent with typed custom tools in a few lines of code C

Agent authoring

developerAgents tools — stories about agents tools in this arenaAgents tools3partial6/10C

Attach input/output guardrails that validate, transform, or block unsafe content C

Guardrails

developerGuardrails safety — stories about guardrails safety in this arenaGuardrails safety3partial5/10C

Trace every LLM call and tool invocation of an agent run in an observability UI C

Tracing

developerEvals observability — stories about evals observability in this arenaEvals observability3partial5/10C

Stream tokens and intermediate agent events (tool calls, steps) to my UI in real time C

Streaming

developerStreaming output — stories about streaming output in this arenaStreaming output3partial4/10C

Checkpoint agent state so a run can resume exactly where it left off after a crash or restart C

Durable state

developerState durability — stories about state durability in this arenaState durability3none0/10

Export all of my data in open formats and leave G

ai-native userOpenness — open source, data portability, and self-hosting storiesOpenness3n/auntestednone yet

Get schema-validated structured output from an agent, with automatic retries when validation fails C

Structured output

developerStreaming output — stories about streaming output in this arenaStreaming output3noneuntestednone yet

Prevent my data from being used to train AI models G

ai-native userPrivacy posture — data-handling and privacy storiesPrivacy posture3n/auntestednone yet

Compose agents into an explicit graph or workflow with branching, loops, and parallel steps C

Workflow control

developerOrchestration multi agent — stories about orchestration multi agent in this arenaOrchestration multi agent2full9/10C

Deploy an agent to a managed runtime and call it as an API endpoint C

Deployment

engineering-leadDeployment portability — stories about deployment portability in this arenaDeployment portability2full8/10C

Have a coding agent scaffold a new agent project from an official CLI or template in one command C

Ai buildability

ai-native userAgents tools — stories about agents tools in this arenaAgents tools2full8/10C

Require human approval before specific sensitive tool calls execute C

Approval flows

engineering-leadHuman in the loop — stories about human in the loop in this arenaHuman in the loop2full8/10C

Run my agents entirely on my own infrastructure with no dependence on the vendor's platform C

Deployment

engineering-leadDeployment portability — stories about deployment portability in this arenaDeployment portability2full8/10C

Score agent quality with built-in evals and run them as part of CI C

Evals

engineering-leadEvals observability — stories about evals observability in this arenaEvals observability2full8/10C

Read the product's source under an open license G

ai-native userOpenness — open source, data portability, and self-hosting storiesOpenness2full7/10C

Run the framework's example agents headlessly from a terminal so an agent can verify what it just built C

Ai buildability

ai-native userAgents tools — stories about agents tools in this arenaAgents tools2full7/10C

Trim, summarize, or filter conversation history to keep an agent inside its context window C

Memory

developerMemory context — stories about memory context in this arenaMemory context2full7/10C

Do everything through the API that I can do in the UI G

ai-native userOpenness — open source, data portability, and self-hosting storiesOpenness2partial5/10T

Unit-test agents with mocked models and tools C

Testing

developerEvals observability — stories about evals observability in this arenaEvals observability2partial5/10C

Restrict what an agent may do with fine-grained tool permissions and sandboxed execution C

Guardrails

engineering-leadGuardrails safety — stories about guardrails safety in this arenaGuardrails safety2partial4/10C

Give agents long-term memory that persists across sessions and threads C

Memory

developerMemory context — stories about memory context in this arenaMemory context2partial3/10C

Perform bulk operations across many items at once G

ai-native userAutomation depth — how much of the product can run unattendedAutomation depth2partial3/10C

Run long-lived agents durably across process restarts and deploys, natively or via durable-execution integrations C

Durable state

engineering-leadState durability — stories about state durability in this arenaState durability2partial3/10C

Choose where my data is stored (region/residency) G

ai-native userPrivacy posture — data-handling and privacy storiesPrivacy posture2none0/10

Control data retention and deletion G

ai-native userPrivacy posture — data-handling and privacy storiesPrivacy posture2none0/10

Opt out of telemetry and usage tracking G

ai-native userPrivacy posture — data-handling and privacy storiesPrivacy posture2noneuntestednone yet

Rely on strict typing and schema validation so a coding agent catches its own mistakes at build time C

Ai buildability

ai-native userAgents tools — stories about agents tools in this arenaAgents tools2noneuntestednone yet

Schedule recurring jobs or workflows G

ai-native userAutomation depth — how much of the product can run unattendedAutomation depth2noneuntestednone yet

Version, review, and roll back my automations G

ai-native userAutomation depth — how much of the product can run unattendedAutomation depth1noneuntestednone yet

Opportunities — the stories that would move this product's scores, from its own judged verdictsOpportunitiestop 8 of 29 stories with headroom

What would move Google ADK’s scores — derived from its own judged verdicts, biggest headroom first. Each line quotes what the judge found missing; shipping it (or evidencing it publicly) is the fix.

  1. Agenticness — how well agents can access and operate the productDelegate tasks to a built-in AI assistant inside the product

    nonemoves Built-in AIimpact 45

    ADK is a framework for building agents that developers run themselves; the docs explicitly describe connecting *external* coding assistants (e.g., 'Connect your favorite coding assistant to our ADK developer Skills') rather than shipping a built-in AI assistant that end-users delegate tasks to inside the product itself.

  2. State durability — stories about state durability in this arenaCheckpoint agent state so a run can resume exactly where it left off after a crash or restart

    nonemoves PA Scoreimpact 30

    Missing: explicit checkpoint/save-state API, resume-from-crash mechanism, persistence backend documentation, and any hands-on confirmation of durable resumption.

  3. Streaming output — stories about streaming output in this arenaGet schema-validated structured output from an agent, with automatic retries when validation fails

    nonemoves PA Scoreimpact 30

    Missing: any mention of output schema enforcement, structured output configuration, or validation-retry mechanism.

  4. Agenticness — how well agents can access and operate the productIssue scoped/least-privilege API credentials for an agent

    nonemoves agent-readyimpact 30

    No evidence in the pack describes issuing scoped or least-privilege API credentials/tokens for agents; the docs cover tools, MCP, workflows, deployment, and evaluation but nothing about credential scoping or permission management for agent identities.

  5. Agenticness — how well agents can access and operate the productSubscribe to events via webhooks

    nonemoves agent-readyimpact 30

    Missing: any webhook registration API, outbound event delivery docs, or third-party confirmation of webhook support.

  6. Agenticness — how well agents can access and operate the productExplore an interactive API reference with runnable examples

    nonemoves API qualityimpact 30

    The evidence pack shows standard docs, code snippets, and CLI examples, but no interactive/runnable API reference (e.g., a Swagger/OpenAPI explorer or live code sandbox); probes for openapi.json and similar endpoints explicitly returned 404s.

  7. Agenticness — how well agents can access and operate the productDownload a machine-readable API spec (OpenAPI or equivalent)

    nonemoves API qualityimpact 30

    No evidence of a downloadable OpenAPI/machine-readable spec for ADK; explicit probes for openapi.json/swagger.json and llms.txt all return 404, indicating no such spec is published.

  8. Agenticness — how well agents can access and operate the productRely on versioned APIs with a documented deprecation policy

    nonemoves API qualityimpact 30

    Missing: versioning scheme documentation, deprecation policy, changelog/migration guides, semantic versioning commitments.

Showing the top 8 of 29 — every none/partial verdict in the story verdicts table is headroom.

Think a verdict is wrong? Every verdicts-table row has a Flag link — see the methodology.

Coverage map — which docs area, API section, or community source covers which judged storiesCoverage map5 surfaces · 34 covered stories

Where the cited evidence behind each covered verdict came from — the same citations the verdicts table shows, no extra judging.

Adk docs docs30 stories

GitHub README26 stories

Claims vs evidence — vendor claims reconciled against independent verdictsClaims vs evidence

0 of 17 testable claims verified · 1 contradictedintegrity 0/100

21 distinct capability claims found in Google ADK’s own claimed-docs/GitHub materials, reconciled against our judge’s independent verdicts.

0

Verified

16

Unverified

1

Contradicted

17

Undersold

Unverified (21)
Contradicted (1)
Undersold (17)
Claims outside our story set (2)

Real capability claims found in Google ADK’s own materials, but no story in this arena’s taxonomy covers them yet — that’s feedback on the taxonomy, not a mark against the product.

  • Agent Config lets you build agents without writing code

    source ↗
  • Web UI supports viewing multi-agent directories or a single agent folder

    source ↗
Suggest a story for these →

Business model

open-source

Apache-2.0 open-source framework, free to use; you pay only for the model and cloud services (such as Vertex AI or Agent Engine) it calls.

pricing ↗

Score trend

How this product’s scores have moved as evidence and verdicts are re-derived — a point per change, not per day.

PA Score33 (Sep 4 '26)35 (Sep 16 '26)
Agent-ready45 (Sep 4 '26)46 (Sep 16 '26)

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For agents

Data