{ "version": "1.0", "protocol": "x402", "chain": "base", "chainId": 8453, "currency": "USDC", "currencyAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402", "endpoints": [ { "path": "/api/x402/attestation", "method": "GET", "price": "0.003", "description": "Call before your agent trades, rebalances or moves capital: is the crypto market calm, elevated or in a crash regime right now? Returns a 10-minute, EIP-712-signed risk attestation for BTC and ETH computed from Chainlink prices and the on-chain shield rule, with severity and a defensive cash share. Any counterparty verifies it offline in one step. Free sample: /api/x402/attestation-sample; free verifier in the MCP server." }, { "path": "/api/x402/seal", "method": "POST", "price": "0.0045", "description": "Call after your agent completes an action it may later have to prove: seal the hashes of its input and output (only your action label and meta are published) into GBLIN's signed append-only transparency log and get a portable receipt: Ed25519 signature, RFC 6962 inclusion proof, C2SP signed checkpoint; root anchored daily on Base (EAS). Proves existence and time, not correctness. Free reads and demo: gblin-mcp.gblin-mcp-worker.workers.dev/log" }, { "path": "/api/x402/catalog", "method": "GET", "price": "0.005", "description": "Call before your agent pays an x402 service it has not used recently: is that endpoint actually alive? Liveness of the ~200 most recently updated Bazaar listings, probed in rotation (each about every 36h): HTTP status, latency, last-OK time and consecutive failures per endpoint. Measurements only, no judgements; the probes never pay. Free aggregate view: gblin-mcp.gblin-mcp-worker.workers.dev/catalog" } ], "contact": "info@gblin.digital", "website": "https://gblin.digital", "docs": "https://gblin.digital/agents", "contract": "0xc2181d975c05c8c724b334bcED0764c0b86B1D53", "lens": "0xfCFea8027019E8551A1f09AD91532471F5D26f61", "zap": "0x0E9D6Ceb6D313b021622C121Cda9C62e86e60200", "mcp": { "stdio": "npx @gblin-protocol/mcp-server", "http": "https://mcp.gblin.digital/mcp", "smithery": "https://smithery.ai/servers/gblin-protocol/mcp", "registry": "io.github.gblinproject/gblin-treasury-risk-regime", "note": "21 free MCP tools in a dot-notation tree: risk.regime, risk.attestation_sample, protocol.info, protocol.stats, coherence.report, receipts.seal (demo 5/day/IP), receipts.get, receipts.verify, and the npm package's vault, action and payment tools (treasury.*, actions.*, payments.*, governance.state, auction.state, attestation.verify), plus 2 prompts and 4 resources. Nothing is paid over MCP: the paid attestation and unlimited seals are the x402 endpoints above.", "relay": "https://gblin.digital/api/relay/gblin", "prompts": [ "risk_gate", "seal_and_verify" ], "audit": { "meta": "https://gblin-mcp.gblin-mcp-worker.workers.dev/meta", "tools": "https://gblin-mcp.gblin-mcp-worker.workers.dev/tools.json", "resources": "https://gblin-mcp.gblin-mcp-worker.workers.dev/resources.json", "conformance": "https://gblin-mcp.gblin-mcp-worker.workers.dev/conformance", "note": "GET-only mirrors of the MCP surface, for reviewers and clients that cannot POST" } }, "attestationSample": "https://gblin.digital/api/x402/attestation-sample", "receipts": { "seal": "https://gblin.digital/api/x402/seal", "price": "$0.0045 USDC (x402, Base)", "demo": "https://gblin-mcp.gblin-mcp-worker.workers.dev/v1/seal-demo", "log": "https://gblin-mcp.gblin-mcp-worker.workers.dev/log", "note": "input/output as hashes only (action label and meta are published); evidence of existence and time in a signed append-only log, root anchored daily on Base; not a compliance certificate; independent witness cosigning: one witness cosigns (markovianprotocol.com/witness), more welcome", "for_witnesses": { "checkpoint": "https://gblin-mcp.gblin-mcp-worker.workers.dev/log/checkpoint", "consistency": "https://gblin-mcp.gblin-mcp-worker.workers.dev/log/consistency?old=&new=", "leaves": "https://gblin-mcp.gblin-mcp-worker.workers.dev/log/leaves?start=&end=", "inclusion": "https://gblin-mcp.gblin-mcp-worker.workers.dev/log/proof/", "verify": "https://gblin-mcp.gblin-mcp-worker.workers.dev/v1/verify/", "note": "RFC 6962 append-only proof and raw records: rebuild the tree yourself. One independent witness cosigns today; more are welcome." } }, "attestor": { "address": "0x3ae65d36e8b1d82B0B80669E769A3dc300D543e4", "signs": "the EIP-712 risk attestation served by /api/x402/attestation", "note": "Attestations are signed by this address. Pin it: a valid signature that recovers to a DIFFERENT address is not ours. If it is ever rotated, the new address is published here and in llms.txt with the rotation date, and the old one is listed as retired.", "retired": [] }, "facilitatorPolicy": { "active": "Coinbase CDP — used whenever CDP_API_KEY_ID/SECRET are configured, which is the current production setup", "fallback": "https://facilitator.payai.network (used only if CDP is disabled via X402_ENABLE_CDP=false or the keys are absent)", "note": "Payers do not need to care: any x402 v2 client (@x402/fetch, AgentKit, CDP) handles the flow from the 402 challenge alone." }, "witness": { "name": "gblin.digital/witness", "endpoint": "https://gblin-mcp.gblin-mcp-worker.workers.dev/witness", "cosigns": "markovianprotocol.com/log", "note": "We co-sign a third party's transparency log every 10 minutes, after verifying its signature and a consistency proof." }, "free_endpoints": [ { "path": "/api/x402/treasury-state", "method": "GET", "price": "free", "description": "NAV, basket composition, Crash Shield status", "note": "Free since 2026-09-27: no payment, plain GET; short CDN cache." }, { "path": "/api/x402/health", "method": "GET", "price": "free", "description": "Wallet-specific balances, cooldown status", "requiredParams": [ "wallet" ], "example": "https://gblin.digital/api/x402/health?wallet=0x0000000000000000000000000000000000000001", "note": "Free since 2026-09-27: no payment, plain GET; short CDN cache." }, { "path": "/api/x402/quote", "method": "GET", "price": "free", "description": "Quote USDC→GBLIN with fees", "requiredParams": [ "direction", "amount" ], "example": "https://gblin.digital/api/x402/quote?direction=buy&amount=100", "note": "Free since 2026-09-27: no payment, plain GET; short CDN cache." }, { "path": "/api/x402/invest", "method": "GET", "price": "free", "description": "Two-step unsigned calldata for USDC→GBLIN (approve to the Zap, swap and mint at NAV)", "requiredParams": [ "usdc", "wallet" ], "example": "https://gblin.digital/api/x402/invest?usdc=10&wallet=0x0000000000000000000000000000000000000001", "note": "Free since 2026-09-27: no payment, plain GET; short CDN cache." }, { "path": "/api/x402/plan", "method": "GET", "price": "free", "description": "Idle USDC to a reviewable plan: operating cash, surplus, mint simulation with live fees and today's exit estimate, trial amount, blockers, prepare URLs", "requiredParams": [ "wallet" ], "optionalParams": [ "daily_burn", "days", "reserve", "trial" ], "example": "https://gblin.digital/api/x402/plan?wallet=0x0000000000000000000000000000000000000001&daily_burn=25&days=7", "note": "Provide daily_burn or reserve. Nothing is executed; the prepare endpoints return unsigned calldata." }, { "path": "/api/x402/jit", "method": "GET", "price": "free", "description": "JIT unsigned calldata for GBLIN→USDC", "requiredParams": [ "usdc", "wallet" ], "example": "https://gblin.digital/api/x402/jit?usdc=10&wallet=0x0000000000000000000000000000000000000001", "note": "Free since 2026-09-27: no payment, plain GET; short CDN cache." }, { "path": "/api/x402/governance", "method": "GET", "price": "free", "description": "Timelock state and governance info", "note": "Free since 2026-09-27: no payment, plain GET; short CDN cache." } ], "free_endpoints_note": "These routes read the vault state (also available free in the MCP server). They were paid until 2026-09-27; a request with a payment header is served without charge." }