generated: '2026-09-19'
method: searched
source: https://humanbrowser.cloud/install
docs:
- https://humanbrowser.cloud/docs/mcp
- https://humanbrowser.cloud/agent
- https://humanbrowser.cloud/terms
- https://humanbrowser.cloud/openapi.json
probed:
- {url: 'https://humanbrowser.cloud/api/trial-balance', method: GET, status: 405, body: '{"error":"method-not-allowed"}', fetched: '2026-09-19', note: 'The trial route exists and is POST-only; no trial was claimed.'}
- {url: 'https://humanbrowser.cloud/agent', status: 200, fetched: '2026-09-19'}
summary: >-
  There is no separate test environment, no test-mode key and no fixture tooling: production is the
  sandbox. What the provider offers instead is money-shaped — a free trial balance on a real hb_live_ token
  (email gate, no card), a public alpha page where anyone can drive the agent for ten free minutes a day per
  IP without a token, and two read-only CLI commands (doctor, balance) that verify connectivity and balance
  without spending anything. Every task after that is billed at the published rates.
test_vs_live:
  separate_environment: false
  key_prefixes:
    live: hb_live_
    trial: 'hb_live_ (the OpenAPI describes the token as "hb_live_… or trial"; no distinct trial prefix is documented)'
    historical: 'hb_skill_ appears in the package SKILL.md example (export HUMANBROWSER_API_TOKEN=hb_skill_xxxx)'
  note: One host, one token type; a trial token and a paid token differ only in balance and in the 14-day revocation clock.
free_trial:
  operation: claimTrial — POST /api/trial-balance {email}
  amount_usd: '10 (site, docs/mcp, Terms 4, llms.txt); the CLI usage text and the llms-full.txt example response say 1.00'
  card_required: false
  limits: ['one per email, lifetime (429 on repeat)', 'auto-revoked 14 days after issuance if no paid top-up', 'no cash value, not refundable (Refund Policy 4)']
  response_shape: '{ok, token, balance_usd, expires_at} per llms-full.txt'
public_demo:
  url: https://humanbrowser.cloud/agent
  status: 'ALPHA · LIVE · FREE 10 MIN/DAY'
  note: 'Type a goal, watch a real session in the live viewer; "No signup, no credit card. The first 10 minutes are free per IP per day; bring your own API key for unlimited use." Model picker: Claude Sonnet 4.6, Claude Haiku 4.5, Kimi K2. Requires an access code to spawn a session per the page text.'
no_charge_calls:
- {what: 'humanbrowser doctor', does: 'GET <base>/.well-known/agent-card.json', billed: false}
- {what: 'humanbrowser balance', does: 'GET <base>/api/balance (Bearer)', billed: false}
- {what: 'GET /.well-known/agent-card.json', does: 'unauthenticated card discovery', billed: false}
- {what: 'GET /api/plans', does: 'unauthenticated rate sheet', billed: false}
- {what: 'actions/get_cost_snapshot, actions/list_countries, list_models, list_engines', does: 'A2A read-only custom actions (Bearer)', billed: 'not stated'}
dry_run: none — no rehearsal mode; the closest signal is metadata.estimated_cost_usd on the initial Task response and the get_cost_snapshot action
fixtures: none