Staxly

Loops vs Anthropic API

Email marketing for SaaS — loops, transactional, campaigns in one
vs. API for Claude — frontier models for chat, tool use, agents, and long-context reasoning

Loops website ↗Anthropic website ↗

Pricing tiers

Loops

Free
1,000 subscribed contacts. 4,000 sends/month. All features. Loops footer on emails.
Free
Paid — 1.5k
1,500 contacts. Unlimited sends. No footer.
$15/mo
Paid — 5k
5,000 contacts. Unlimited sends.
$49/mo
Paid — 10k
10,000 contacts.
$99/mo
Paid — 25k
25,000 contacts.
$199/mo
Paid — 50k
50,000 contacts.
$349/mo
Custom
>100k contacts — contact sales.
Custom
Loops website ↗

Anthropic API

Opus 4.7 — usage
Input $5 / output $25 / cache-write $6.25 / cache-read $0.50 per 1M tokens. Batch = 50% off.
Custom
Sonnet 4.6 — usage
Input $3 / output $15 / cache-write $3.75 / cache-read $0.30 per 1M tokens. Batch = 50% off.
Custom
Haiku 4.5 — usage
Input $1 / output $5 / cache-write $1.25 / cache-read $0.10 per 1M tokens. Batch = 50% off.
Custom
Anthropic website ↗

Free-tier quotas head-to-head

Comparing free on Loops vs opus-4-7 on Anthropic API.

MetricLoopsAnthropic API
discount batch—50 % off

Features

Loops · 12 features

  • API Keys — Scoped keys for testing vs production.
  • Audiences (Segments) — Filter contacts by properties + event behavior.
  • Campaign Analytics — Open/click/unsubscribe rates, heatmaps, A/B significance.
  • Campaigns — One-off broadcasts to audience segments. Schedule + A/B test subject.
  • Contacts — Contact records with custom properties (strings, numbers, booleans, dates).
  • Email Editor — Visual block-based + Markdown + HTML modes.
  • Events — Send events to trigger loops/journeys or filter audiences.
  • Loops (Automations) — Event-triggered automation flows with delays + conditions.
  • Mailing Lists — Opt-in lists with subscribe/unsubscribe preferences per list.
  • Template Library — Pre-built templates for SaaS use cases (onboarding, digest, launch).
  • Transactional API — Send transactional emails (receipts, password resets) via /transactional endpoin…
  • Webhooks — Subscribe to contact/event changes.

Anthropic API · 0 features

    Developer interfaces

    KindLoopsAnthropic API
    CLI—Claude Code CLI
    SDK@loops/loops, loops-pyGo SDK, Java SDK, Python SDK, Ruby SDK, TypeScript SDK (@anthropic-ai/sdk)
    RESTLoops REST APIAWS Bedrock, Google Vertex AI, Microsoft Azure AI, REST API (Messages + Agents)
    OTHERWebhooks—
    Staxly is an independent catalog of developer platforms. Some links to Loops and Anthropic API may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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