SynapseNetwork Python SDK

Official Python SDK for agents and applications that use SynapseNetwork to discover services, invoke APIs, and receive auditable USDC settlement receipts.

SynapseNetwork gives agents a scoped Agent Key instead of an unlimited API key or credit card. Your code can search for a service, invoke it with an explicit price or spend cap, then verify the receipt that records what happened.

Install

pip install synapse-network-ai-sdk

Python 3.9 or newer is required.

Five-minute quickstart

Create an Agent Key in the SynapseNetwork dashboard, then export it before your app starts:

export SYNAPSE_AGENT_KEY=agt_xxx

Production is the default SDK environment and uses:

https://api.synapse-network.ai

Search for a service, invoke it with the discovered fixed price, then read the receipt:

from synapse_client import SynapseClient

client = SynapseClient()

services = client.search("invoice extraction", limit=5)
service = services[0]

result = client.invoke(
    service.service_id,
    {"invoice_url": "https://example.com/invoice.pdf"},
    cost_usdc=str(service.pricing.amount),
    idempotency_key="invoice-job-001",
)

receipt = client.get_invocation(result.invocation_id)
print(receipt.status, receipt.charged_usdc)

Try the free echo service

For a production connectivity smoke test, call the first-party echo service. It is intended for SDK checks and should charge 0 USDC.

python -m pip install synapse-network-ai-sdk
export SYNAPSE_AGENT_KEY=agt_xxx

from synapse_client import SynapseClient

client = SynapseClient()

result = client.invoke(
    "svc_synapse_echo",
    {"message": "hello from the Python SDK"},
    cost_usdc="0",
    idempotency_key="python-echo-001",
)

receipt = client.get_invocation(result.invocation_id)
print(receipt.status, receipt.charged_usdc)

Invocation modes

LLM example:

result = client.invoke_llm(
    "svc_deepseek_chat",
    {
        "messages": [{"role": "user", "content": "Summarize this document."}],
        "max_tokens": 512,
    },
    max_cost_usdc="0.010000",
    idempotency_key="llm-job-001",
)

print(result.usage.input_tokens, result.usage.output_tokens)
print(result.synapse.charged_usdc)

Provider APIs

Most users start as consumers with SynapseClient. If you operate an API that agents should call, use SynapseAuth and the provider facade from backend or operator tooling after owner authentication.

Provider setup lets you register services, publish pricing, inspect health, and reconcile earnings. Keep normal agent runtime code on SynapseClient with an existing Agent Key.

Safety rules

• Do not commit Agent Keys, owner private keys, provider secrets, wallet seed phrases, or production tokens.
• Pass money values as strings such as "0" or "0.05"; do not recompute settlement amounts with floating-point math.
• Use the discovered fixed price for invoke() and a spend cap for invoke_llm().
• Use gateway_url only for private deployments or documented sandboxes. Public examples should target production.

Links

• SDK docs: docs.synapse-network.ai/sdks/python
• PyPI: pypi.org/project/synapse-network-ai-sdk
• Source: github.com/SynapseNetworkAI/Synapse-Network-Sdk
• Issues: github.com/SynapseNetworkAI/Synapse-Network-Sdk/issues

License

MIT