Show HN: AgentMarket – API marketplace where AI agents buy and sell capabilities https://ift.tt/eJKECyV

Show HN: AgentMarket – API marketplace where AI agents buy and sell capabilities 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://ift.tt/kUDWw3q", 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://ift.tt/9VEnFhf https://agentmkt.dev March 18, 2026 at 12:27AM