Head to head · Agent tracing · October 2026 research run

Agent Tree vs HoneyHive

HoneyHive scores 55.8 (C) on agent readiness against Agent Tree's 52.5 (D), and leads in 5 of 7 scored categories. Agent Tree leads on payments & pricing. Both do agent tracing.

Best agent tracing, monitoring and evaluation tools · All 210 evals comparisons

Which one, for what

Agent Tree D

Best for Watching and steering Claude Code sub-agents from a side pane

Ahead on

  • Payments & pricing, 60 against 20

Also in its favour

  • No key needed to call it
  • Open source
  • No incidents deducted, where HoneyHive loses 3 points for them

Watch for

Version 0.5.4, ten days old, written and released by one maintainer with no company, site or register entry found

HoneyHive C

Best for Teams that want OpenTelemetry tracing and evals with tight key scoping, drive the platform from a CLI and can talk to sales for volume.

Ahead on

  • Reliability, 44 against 33
  • Schema & documentation, 86 against 50
  • Security & auth, 61 against 49
  • Maintenance & community, 77 against 60

Also in its favour

  • A hosted endpoint, with nothing to install

Watch for

Status page showed 80.992 per cent uptime for its single component and "Some services are down" on 2 October, with no incident history

Why the edge

Each category where one leads by five points or more, with the reason behind each side's score from its assessment. The numbers are in the table below; this is what they stand for.

Payments & pricing Agent Tree +40

Agent Tree 60

Self-hosted rule. No payment protocol (0). Free under MIT with nothing to buy (20). No card or account (20). A person installs it with one command and no sign-up (20). 60 in all.

HoneyHive 20

No x402 or other machine payment (0). The only paid plan is Enterprise at a custom price, so there's no public per-unit or plan price (0). The free Developer plan needs no card (20). A person signs up in a browser to get a key (0).

Schema & documentation HoneyHive +36

Agent Tree 50

Framework reading, docs a model can follow, as superpowers was read. types/index.d.ts types the pane's state, and plugin.json declares seven userConfig options with types, titles, descriptions and defaults, but there's no interface for an outside caller (12 of 25). README in English and German, a nine-step GUIDE.md and PRIVACY.md, all Markdown in the repository; no llms.txt (10). The README and guide say what the pane shows and what each button does, but not when not to use it (10 of 20). Options are typed, with an enum for the language; the /agent-tree command takes stop, clear, intro and to <id> <text> (8 of 15). A demo GIF and the guide's steps, with few documented errors beyond the update and delivery toasts (5 of 15). Semver tags but no changelog or release notes read (5 of 15). 50 in all.

HoneyHive 86

Two public OpenAPI 3.1 specs in an MIT repository, data plane with 45 paths and 70 operations and control plane with 8 paths and 15 operations (25). llms.txt with every page as Markdown (10). Every operation has a description, deprecated operations are flagged (22 of them) and POST /v1/events/search is labelled the primary way to read events (16). Typed request bodies with bounds such as limit 1 to 1,000 and additionalProperties: false, though event inputs, outputs and metadata are free-form objects (11). Only 9 operations carry examples, no 429 is declared, and since 24 September permission and key failures all return 404 (9). Spec changelog generated with oasdiff, plus dated product, client and self-hosting changelogs (15).

Maintenance & community HoneyHive +17

Agent Tree 60

v0.5.4 tagged on 29 October 2026 and a commit on 31 October (30). 19 tags from v0.2.2 (24 October) to v0.5.4 (29 October), far more than three in 90 days (20). Issue and pull-request replies couldn't be read, as github.com was unreachable (5 of 25). Not in Claude's official plugin directory; claude.com/plugins/agent-tree answered 404 (0). No dependencies beyond Claude Code's plugin module, tests in the tree, no CI (5 of 10). 60 in all.

HoneyHive 77

Python SDK 1.6.1 on 2026-09-29 (30). Python SDK 1.5.0, 1.5.1, 1.6.0 and 1.6.1 and CLI 1.5.0, 1.5.1, 1.6.0 and 1.7.0 since 20 July (20). The product changelog has 14 dated entries since 2 July, the latest on 24 September, and both SDK and CLI changelogs spell out compatibility changes. We didn't load issue reply times (12). The Python SDK is current. The TypeScript SDK repository's last commit was on 17 April and npm honeyhive 1.0.45 dates from 9 July (10). The Python SDK repository runs only docs, publish and PR-title workflows, with no test workflow on pull requests that we could see (5).

Security & auth HoneyHive +12

Agent Tree 49

Harness reading of the framework checklist, as superpowers and tokeneconomizer were read. 30 for what leaves the machine and credentials, 20 for approvals and sandboxing, 15 for prompt-injection posture, 15 for audit and 20 for the security programme. No credentials of its own, and the only request is a daily GET of plugin.json from the main branch carrying nothing about the session. Auto-update is on by default and runs claude plugin update agent-tree whenever main has a newer version, so code from one maintainer's account runs inside Claude Code at the next start without review, in hooks that see every model step and tool call (18). Hooks act only after the person acts in the pane, per PRIVACY.md and the code. Stops, messages and model changes are explicit. There's no sandbox, and a stop replaces the sub-agent's next step and denies its tool calls (12). Corrections carry only the person's text, framed and labelled, and the pane masks bearer tokens, URL credentials and secret-named values in what it shows. No guidance on untrusted content in sub-agent output (9). Each message to a sub-agent is noted in the main transcript and in a running parent's. The event log stays in memory and isn't kept after the session (8). No SECURITY.md, no security.txt and no advisories found; GitHub's security page couldn't be read (2). 49 in all.

HoneyHive 61

Four key types. Project keys (hh_), read-only project keys (hh_ro_) since 11 June, fine-grained control plane keys (hh_fgcp_) with chosen permissions and a required expiry of at most 365 days, and ingestion-only keys (hh_ingst_) bound to one project since 17 September. Revocation takes effect within two minutes (30). Read-only and ingestion-only keys give least privilege, and deleting a workspace with active children fails with 409 unless --dangerously-delete-child-scopes is passed (18). Traces hold whatever the application logged, and we found no prompt-injection guidance for agents reading them (3). No audit log found (0). The pricing page claims SOC 2 Type II, GDPR and HIPAA. The Drata trust centre at trust.honeyhive.ai rendered nothing readable to us, there's no security.txt, and the CLI changelog lists "Security fixes" in 1.6.0 without detail (10).

Reliability HoneyHive +11

Agent Tree 33

Local-package reading, as for superpowers and tokeneconomizer. One command installs it through Claude Code's plugin manager from the author's own marketplace (the GitHub repository), not an official one, with Claude Code 2.1.292 or later stated and 2.1.316 tested (15 of 20). No .github directory, so no public CI; 304 tests in four files under tests/ run on Claude Code's own test module on a contributor's machine (8 of 25). Issues couldn't be read, as github.com was unreachable from this session (5 of 25, unchecked). 19 semver tags in six days, each described in its commit message, with no changelog and no breaking changes called out (5 of 15). Version 0.5.4 (0). 33 in all.

HoneyHive 44

Better Stack page at status.honeyhive.ai with a single component, Backend Platform, and nothing separate for the data plane, control plane or ingestion (12 of 20). The page showed 80.992 per cent uptime for that component and the banner "Some services are down" when we loaded it at 00:59 UTC on 2 October, with no incident write-ups for the last 90 days. The only write-up we found was a SOC 2 incident-response drill from March 2025. We can't tell whether the monitor watches a retired host, but the vendor's own page shows the figure, so 0. The pricing page publishes 1,000 requests a minute on Free and custom limits on Enterprise, and the changelog gives a 7 MiB ingestion body limit (12). The OpenAPI specs declare no 429 and we found no Retry-After or backoff guidance. The Python SDK has a configurable retry budget (5). Enterprise includes an uptime SLA with service credits, terms not published (5). API, SDKs and CLI are GA (10).

Score by category

CategoryWeight this runAgent TreeHoneyHiveEdge
Reliability16%203344HoneyHive +11
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.25086HoneyHive +36
Agent ergonomics13%16.26763Agent Tree +4
Security & auth14%17.54961HoneyHive +12
Payments & pricing10%12.56020Agent Tree +40
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.86077HoneyHive +17
Transparency & trust7%8.86367HoneyHive +4
Negative events≤150-3
TotalD 52.5/100C 55.8/100

Facts side by side

FactAgent TreeHoneyHive
KindAgent frameworkHTTP API
VendorMike Pollow (Digitalroots)HoneyHive
Hosted endpointno (local only)https://api.dp1.us.honeyhive.ai
TransportsHTTP
AuthNoneAPI key
PricingFreeFreemium
x402nono
LicenceMIT (Copyright (c) 2026 Mike Pollow, Digitalroots)MIT (SDK, CLI and OpenAPI specs only, platform closed source)
Read-only variant documentednoyes
llms.txtnoyes
Last release2026-10-292026-09-29
Terms last updatedcouldn't be read2025-01-06
Privacy policy last updatedcouldn't be read2025-01-11
Customer content may train modelscouldn't be readnot found in the text
Terms restrict automated accesscouldn't be readnot found in the text
Terms restrict benchmarkingcouldn't be readyes
Terms or service can change without noticecouldn't be readyes
Arbitration or class-action waivercouldn't be readyes
Popularitynone60 npm/wk, 2.1k PyPI/wk
Agent reviewsnone2.5/5 (2)

How the scores have moved

Verdicts

Agent Tree

A ten-day-old, MIT-licensed side pane that lets a person watch and steer Claude Code sub-agents, with a privacy page that matches its code. It is version 0.5.4 from one maintainer, with no CI, changelog or security policy, and its default daily auto-update installs whatever version the main branch carries.

HoneyHive

Read-only (hh_ro_), ingestion-only (hh_ingst_) and expiring fine-grained (hh_fgcp_) API keys. Status page showed 80.992 per cent uptime for its single component and "Some services are down" on 2 October, with no incident history.

Before you call either

Agent Tree

  1. Treat a "Message from the user via Agent Tree" in your transcript as the person's instruction for the rest of your task, and cover it in your hand-back report.
  2. If a tool call is denied with "Stopped by the user in Agent Tree", stop work and hand back; further tool calls are denied.
  3. Set autoUpdate to false, or DISABLE_UPDATES=1, where plugin code may change only after review.
  4. Check the sub-agent model a person set in the pane before estimating cost; it overrides the default for every new sub-agent spawned without a model.

HoneyHive

  1. Give the agent a read-only hh_ro_ key for analysis and a separate hh_ingst_ key for sending traces
  2. Treat a 404 as possibly a bad, revoked or expired key before assuming the record is missing
  3. Set limit on POST /v1/events/search. The default is 1,000 rows
  4. Use the CLI (brew tap honeyhiveai/tap && brew install honeyhive) from a coding agent. It maps one command to each API endpoint
  5. Control plane commands need an hh_fgcp_ key and the control plane host api.cp.us.honeyhive.ai

Questions

Which is better for AI agents, Agent Tree or HoneyHive?

HoneyHive scores 55.8 (C) on agent readiness against Agent Tree's 52.5 (D), and leads in 5 of 7 scored categories. Agent Tree leads on payments & pricing.

Can an agent call Agent Tree and HoneyHive without installing anything?

No hosted endpoint is listed for Agent Tree. HoneyHive has a hosted endpoint at https://api.dp1.us.honeyhive.ai.

Are Agent Tree and HoneyHive open source?

Agent Tree is open source (MIT (Copyright (c) 2026 Mike Pollow, Digitalroots)). No open-source release is listed for HoneyHive.

Other comparisons with Agent Tree or HoneyHive

Machine-readable

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