Agent Tool Marketplace for AI Agents

Pay-per-use agent tools from 3337 providers. No subscriptions or separate accounts. One wallet pays for everything.

The problem with API access for AI agents

Building AI agents that call external APIs is painful. For every provider, you need to create an account, manage API keys, handle billing, and track usage separately. If your agent uses OpenAI, Anthropic, a search API, a data provider, and a code execution service, that's five separate accounts to manage — and five separate bills.

How Locus solves it

Locus offers pay-per-use agent tools across 3337 provider groups behind a single payment layer. Your agent connects with one API key, chooses the tool it needs, and pays per use from its USDC wallet. No subscriptions, no minimums, no separate accounts.

LLM / Chat

Token-metered

OpenAI, Anthropic, Gemini, OpenRouter, DeepSeek, Groq, Grok, Perplexity, Mistral

Search & Scraping

Per call or page

Tavily, Exa, Firecrawl, DataForSEO

Data & Intelligence

Per request

CoinGecko, Alpha Vantage, Apollo, Diffbot, RentCast, Hunter, BuiltWith

Audio & Generative

Usage-metered

Deepgram, ElevenLabs, Suno, Stability AI, fal.ai, Replicate

Also available via MPP

Many Locus endpoints are also available via the Machine Payments Protocol (MPP) — the open standard for machine-to-machine payments via HTTP 402. Agents with a Tempo wallet can call APIs directly and pay per request without needing a Locus account. Browse available MPP endpoints at mpp.sh/services.

Why pay-per-use beats subscriptions

•No wasted credits — Only pay for calls you actually make. No monthly minimums or expiring credits.
•One bill — All tool usage is charged to one USDC wallet. No juggling payment methods across providers.
•Instant access — No signup flows per provider. Connect your Locus API key and start using agent tools immediately.
•Budget controls — Set spending limits per agent, per wallet, or per time period. Never get surprised by a bill.

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