STACKFOR

Anthropic

Anthropic API

Claude models for apps and agents.

activeBuilderAgent fanNew tool
Open Anthropic API

The developer API for Claude. Separate from claude.ai and from Claude Code.

Provisional seed scores. Method seed-v0-provisional, confidence low, not hands-on tested. The band around a number is a ±8 display label, not a measured interval. Ordering uses the point estimate.

Pricing

Model
Usage-based
Free plan
No
Cheapest monthly
Usage-based
Billing
Usage
Status
Usage-based
Checked
Oct 16, 2026
Free tier
Usage-based. No flat monthly plan.

Pricing page

The dollar amount is not a score. Rankings do not read it.

API flag: seed says yes. MCP flag: not marked. These flags are notes, not an audit.

Outbound link

No public affiliate program was recorded for this tool in the Oct 14, 2026 research, or it was not checked. Absence of a program does not change any score.

We may earn a commission if a tracking link is connected and you buy through it. It never changes ranks. In this v1 seed, tracking URLs are empty, so “Open site” goes to the vendor. Sponsorship rules.

Score per goal

  • StackFor adding AI features to an existing app

    LLM API · role rank 1

    Strong at reasoning and tool use inside product features.

    83

    75–91 · low confidence

    Goal fit25%
    90
    Output quality20%
    90
    Ease for vibe coders15%
    74
    Pricing and free tier15%
    66
    Integrations and API10%
    86
    Momentum10%
    88
    Community sentiment5%
    82
  • StackFor building a customer-support agent

    LLM API · role rank 1

    Careful tone and tool use.

    83

    75–91 · low confidence

    Goal fit25%
    88
    Output quality20%
    90
    Ease for vibe coders15%
    74
    Pricing and free tier15%
    66
    Integrations and API10%
    86
    Momentum10%
    88
    Community sentiment5%
    82
  • StackFor building your first AI agent

    LLM API · role rank 1

    Strong tool-use reputation for a first serious agent.

    83

    75–91 · low confidence

    Goal fit25%
    90
    Output quality20%
    90
    Ease for vibe coders15%
    74
    Pricing and free tier15%
    66
    Integrations and API10%
    86
    Momentum10%
    88
    Community sentiment5%
    82
  • StackFor chatting with your documents (RAG)

    LLM API · role rank 1

    Citations API.

    83

    75–91 · low confidence

    Goal fit25%
    88
    Output quality20%
    90
    Ease for vibe coders15%
    74
    Pricing and free tier15%
    66
    Integrations and API10%
    86
    Momentum10%
    88
    Community sentiment5%
    82
  • StackFor multi-agent research crews

    LLM API · role rank 1

    Strong long-document synthesis.

    83

    75–91 · low confidence

    Goal fit25%
    90
    Output quality20%
    90
    Ease for vibe coders15%
    74
    Pricing and free tier15%
    66
    Integrations and API10%
    86
    Momentum10%
    88
    Community sentiment5%
    82
  • StackFor AI lead capture and CRM automation

    AI step · role rank 1

    Same job.

    82

    74–90 · low confidence

    Goal fit25%
    84
    Output quality20%
    90
    Ease for vibe coders15%
    74
    Pricing and free tier15%
    66
    Integrations and API10%
    86
    Momentum10%
    88
    Community sentiment5%
    82
  • StackFor AI NPCs and dialogue

    LLM API · role rank 1

    Consistent character writing.

    82

    74–90 · low confidence

    Goal fit25%
    84
    Output quality20%
    90
    Ease for vibe coders15%
    74
    Pricing and free tier15%
    66
    Integrations and API10%
    86
    Momentum10%
    88
    Community sentiment5%
    82
  • StackFor automating email and inbox triage

    AI step · role rank 1

    Reliable classification.

    82

    74–90 · low confidence

    Goal fit25%
    84
    Output quality20%
    90
    Ease for vibe coders15%
    74
    Pricing and free tier15%
    66
    Integrations and API10%
    86
    Momentum10%
    88
    Community sentiment5%
    82
  • StackFor automating your business without code

    AI step · role rank 1

    Better on a long messy document. Same idea.

    82

    74–90 · low confidence

    Goal fit25%
    84
    Output quality20%
    90
    Ease for vibe coders15%
    74
    Pricing and free tier15%
    66
    Integrations and API10%
    86
    Momentum10%
    88
    Community sentiment5%
    82
  • StackFor building a phone or voice agent

    LLM API · role rank 1

    Excellent model. Watch latency on a live call.

    82

    74–90 · low confidence

    Goal fit25%
    84
    Output quality20%
    90
    Ease for vibe coders15%
    74
    Pricing and free tier15%
    66
    Integrations and API10%
    86
    Momentum10%
    88
    Community sentiment5%
    82
  • StackFor building an internal tool or dashboard

    AI step · role rank 1

    Strong extraction and summaries.

    82

    74–90 · low confidence

    Goal fit25%
    86
    Output quality20%
    90
    Ease for vibe coders15%
    74
    Pricing and free tier15%
    66
    Integrations and API10%
    86
    Momentum10%
    88
    Community sentiment5%
    82
  • StackFor shipping a SaaS MVP this weekend

    LLM API · role rank 1

    Strong model quality. Slightly less of a default SDK story.

    82

    74–90 · low confidence

    Goal fit25%
    86
    Output quality20%
    90
    Ease for vibe coders15%
    74
    Pricing and free tier15%
    66
    Integrations and API10%
    86
    Momentum10%
    88
    Community sentiment5%
    82
  • StackFor making an indie game with AI

    NPC / dialogue · role rank 1

    A model you wire into dialogue yourself.

    81

    73–89 · low confidence

    Goal fit25%
    80
    Output quality20%
    90
    Ease for vibe coders15%
    74
    Pricing and free tier15%
    66
    Integrations and API10%
    86
    Momentum10%
    88
    Community sentiment5%
    82

Release log

No release on file. That is not the same as stale.

No score revisions on file. These seed scores have not been through the pipeline.