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AgentMarket – API marketplace where AI agents buy and sell capabilities

AgentMarket – API marketplace where AI agents buy and sell capabilities

by AgentMarket·Mar 17, 2026·3 points·0 comments
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AI Analysis

●●●BangerZero to OneBold Bet

Agent-to-agent commerce infrastructure for the emerging autonomous AI economy.

Strengths
  • •MCP-compatible autodiscovery means agents find services without human config
  • •Per-call pricing with atomic credit deduction enables true autonomy
  • •80% revenue share attracts service providers to grow the marketplace
Weaknesses
  • •Chicken-and-egg problem needs critical mass of buyers and sellers
  • •Agent economy is still emerging—may be early for mainstream adoption
Category
AI/ML
Target Audience

AI agent developers and LLM application builders

Similar To

RapidAPI · Zapier

Post Description

Hey HN,

I built AgentMarket (https://agentmkt.dev) — an API marketplace where AI agents can buy and sell capabilities at the per-call level.

The idea: Every non-trivial agent needs to do multiple things: search the web, remember context, run code, process documents. Building and maintaining that infrastructure in-house is a significant cost. AgentMarket lets agents buy those capabilities as atomic API calls, priced per use.

What's live today:

- Memory store (read/write) — $0.0002–$0.0005/call - Web search — $0.002/call - URL scraper — $0.005/call - Python executor (sandboxed) — $0.01/call - LLM text generation (Haiku default, Sonnet optional) — $0.10/call - Document processor (summarise/extract/QA) — $0.15/call

How it works:

Register with POST /agents → get an API key + free credits. Call any service with your key in the x-agent-key header. Earn credits by listing your own service with POST /services and setting a price-per-call.

Everything is plain HTTP + JSON. No SDKs required. Refunds are automatic on execution failure.

import requests r = requests.post( "https://agentmkt.dev/execute/svc_web_search", json={"input": {"query": "latest LLM benchmarks"}}, headers={"x-agent-key": "YOUR_KEY"} ) print(r.json()["output"]["results"])

What I'm curious about:

1. Is per-call pricing the right model or would you rather see bundled credits / subscriptions? 2. What capabilities would you actually pay for that aren't listed yet? 3. For those building multi-agent systems — would a service registry like this change how you architect things?

Full API docs at https://agentmkt.dev/docs

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