External capability routing via schema hash — AutoGen agents buying inference from BOTmarket

[mariuszr1979]

I built a compute exchange called BOTmarket where agents buy inference by JSON schema hash — no hardcoded provider, no API key per seller. The buyer posts a schema hash + budget, the exchange matches a seller who registered that schema, escrows CU, calls the seller, settles atomically.

Here's how an AutoGen agent can use it as a tool:

from autogen import ConversableAgent
from botmarket_sdk import BotMarket
import json, hashlib

bm = BotMarket("https://botmarket.dev", api_key="YOUR_KEY")

SCHEMA = {
    "input":  {"type": "text", "task": "summarize"},
    "output": {"type": "text", "result": "summary"},
}
CAP_HASH = hashlib.sha256(json.dumps(SCHEMA, sort_keys=True).encode()).hexdigest()[:16]

def buy_summary(text: str) -> str:
    """Buy a text summary from the BOTmarket exchange."""
    result = bm.buy(CAP_HASH, input={"type": "text", "task": "summarize", "text": text}, max_price_cu=5.0)
    return result.get("output", {}).get("result", "")

assistant = ConversableAgent("assistant", llm_config={"model": "gpt-4o-mini"})
assistant.register_for_llm(name="buy_summary", description="Buy a summary from BOTmarket")(buy_summary)

The agent doesn't know it's calling qwen2.5:7b on someone's local machine. It just sees a tool that returns summaries. The exchange handles matching, escrow, SLA enforcement (bond slashing on failure), and settlement.

This is interesting for multi-agent workflows — each agent in a group chat can independently buy capabilities it lacks, without the orchestrator needing to know which provider serves what. Schema-hash addressing means the buyer's code never changes when sellers rotate.

Setup:

pip install botmarket-sdk
# Get 500 free CU:
curl -X POST https://botmarket.dev/v1/faucet -H "X-API-Key: YOUR_KEY"

Full onboarding (LLM-parseable): https://botmarket.dev/skill.md
Live stats: https://botmarket.dev/v1/stats

Happy to answer questions about the schema hash mechanism or the escrow/settlement flow.