The shortest path from curiosity to a working agent flow.
This page turns the live proof surface into an operator-grade checklist: which endpoint to call first, what to inspect, how to test wallet-agent policy, where receipts live, and which mainnet claims remain closed.
A practical developer entrypoint for Ergo's testnet-first agent economy surfaces. Mainnet remains audit-gated.
Live cockpit
Operational state for Sage, MCP, receipts, widget, policy, and mainnet gate.
Policy playground
Interactive allow/deny lab before any wallet is asked to sign.
Developer services
Hashing, address checks, box/tx lookup, receipt verification, and live probes.
Review pack
External review scope, evidence, checklist, and forbidden claims.
First run
Five checks before you build.
The goal is to see the whole chain once: status, policy, receipt, workbench, and embeddable host surface.
Inspect live state
Confirm Sage, receipt storage, MCP, signer, widget, wallet-agent surfaces, and the mainnet gate state.
Try policy denial
Mutate a proposed wallet-agent action and inspect deterministic allow/deny verdicts.
Open a full receipt bundle
Inspect Agreement JSON, Verification Receipt JSON, Settlement Receipt JSON, and chain proof from one source of truth.
Use developer services
Hash task bytes, inspect addresses, fetch boxes/transactions, and verify receipts from one workbench.
Embed the Sage widget
Review React and vanilla widget surfaces for quote, payment intent, Note verification, and receipt callbacks.
API recipes
Machine-readable surfaces to wire first.
These are deliberately boring endpoints: stable JSON, explicit status, and no signing authority.
curl -sS https://www.ergoblockchain.org/api/agent-economy/live
curl -sS https://www.ergoblockchain.org/api/agent-economy/wallet-agent/policy-check
curl -sS https://www.ergoblockchain.org/api/agent-economy/wallet-agent/reference-flow
curl -sS https://www.ergoblockchain.org/api/sage/receipt/f8752d10a2ece92fbc88065c3b92b94da621ec65943098f43c9e084deb763d81
curl -sS https://www.ergoblockchain.org/agent-economy/release-watchlist.v0.json
curl -sS https://www.ergoblockchain.org/api/agent-economy/release/current
Widget
Embed Sage without handing over wallet authority.
The package is a host-owned wallet handoff surface: the widget can produce payment intent JSON, but the host decides how to authorize, simulate, sign, and persist receipts.
npm install @ergoblockchain/sage-widget
SagePaymentWidget React component
mountSagePaymentWidget vanilla function
typed quote, verify, chat stream, receipt, and activity clients
payment intent JSON for host-owned wallet flows
receipt callbacks and tenant metadata
Guardrails
The claims boundary is part of the product.
The system is strongest when every developer can see what is live and what is still blocked.
Treat all public payment flows as testnet live proof until the mainnet gate opens.
Do not expose seed phrases or private keys to pages, widgets, prompts, or remote agents.
Run policy-check and exact transaction simulation before asking a wallet to sign.
Treat remote quotes as untrusted input until local policy validates recipient, reserve, amount, fee, expiry, task hash, and receipt expectations.
Persist or link the receipt bundle after every paid action.
Do not claim production, audited, certified, or mainnet-ready status before external review and audit-bound script identity exist.
Mainnet gate
Two external artifacts still decide the next level.
Everything in this launch kit is testnet live proof. Mainnet language opens only after external review and audit-bound script identity are published as completed artifacts.