A reserve asset for AI-agent treasuries on Base, backed one-to-one by an on-chain cbBTC / WETH / USDC basket with a Crash Shield that cuts risk-asset weights during drawdowns (it fired on mainnet once: tx 0x896be221989930776972c78f81e2be9081c90d0027c14f7cd74bf51b9ad0acca). In-kind redemption any time. Risk policy is public code; risk state is a signed observable. Free: the market risk regime (calm | elevated | crash) over MCP, and a public append-only transparency log for AI actions (RFC 6962, Ed25519-signed, cosigned by an independent witness, root anchored daily on Base via EAS) with a demo seal. Paid, via x402 on Base (USDC, 0.001 to 0.03 per call): EIP-712-signed risk attestations verifiable offline, unlimited action receipts (0.0045 per seal), treasury and governance state, quotes, JIT swaps. Two MCP servers: a hosted Streamable-HTTP one with 21 tools (no install, no key) and the npm package @gblin-protocol/mcp-server with 20 stdio tools: prepare, simulate and follow any operation on the vault, and gasless payments in GBLIN (EIP-3009) with an optional relay. Pre-registered, hash-pinned promises about our own conduct are probed every 10 minutes and sealed daily on Base (Coherence Proof). Slither static analysis on the live contract: 0 critical, 0 high; no manual third-party audit; parameters are changeable by a 48h timelock.
The seven checks, with their evidence
7 recordedRegistered?rung 1 · registered
passThe agent exists in the on-chain registry, with an owner and a document URL.
passed
- block_number
- 52281733
- chain_id
- 8453
- token_id
- 59286
checked at 2026-10-07T15:58:01.653423Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- elapsed_ms
- 631
- http_status
- 200
- scheme
- https
checked at 2026-10-07T15:58:01.653423Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 6940
- body_sha256
- c57f37d313a007cdc70ffdf675b99bb2c9ddee893d2f938547300a6c25160189
- content_type
- application/json; charset=utf-8
checked at 2026-10-07T15:58:01.653423Z
Follows the spec?rung 4 · conformant
passThe document meets what ERC-8004 requires of it.
passed
- both_fields_present
- false
- legacy_endpoints_field
- false
- may_gaps
- (empty)
- must_violations
- (empty)
- registrations_checked
- 1
- services_field_source
- services
- services_status
- present
- should_gaps
- services[].version
- spec_commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-07T15:58:01.653423Z
Claims its identity?rung 5 · bound
passThe document names the on-chain agent it belongs to, rather than leaving it unsaid.
passed
- declared_agent_id
- 59286
- declared_chain
- 8453
- declared_registry
- eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
- match
- true
- registrations_seen
- 1
checked at 2026-10-07T15:58:01.653423Z
Answers?rung 6 · live
passA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
passed
- endpoints
{"declared":"https://gblin.digital/agents","elapsed_ms":762,"final_url":"https://gblin.digital/agents","http_status":200… (1,204 chars — expand)
{"declared":"https://gblin.digital/agents","elapsed_ms":762,"final_url":"https://gblin.digital/agents","http_status":200,"index":0,"kind":"https","name":"web","outcome":"live","probed":true,"probed_url":"https://gblin.digital/agents"}, {"declared":"https://mcp.gblin.digital/mcp","elapsed_ms":360,"final_url":"https://mcp.gblin.digital/mcp","http_status":405,"index":1,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://mcp.gblin.digital/mcp"}, {"declared":"https://gblin.digital/.well-known/agent-card.json","elapsed_ms":685,"final_url":"https://gblin.digital/.well-known/agent-card.json","http_status":200,"index":2,"kind":"https","name":"agent-card","outcome":"live","probed":true,"probed_url":"https://gblin.digital/.well-known/agent-card.json"}, {"declared":"https://github.com/agntcy/oasf/","elapsed_ms":1377,"final_url":"https://github.com/agntcy/oasf/","http_status":200,"index":3,"kind":"https","name":"OASF","outcome":"live","probed":true,"probed_url":"https://github.com/agntcy/oasf/"}, {"declared":"gblin.base.eth","index":4,"kind":"other","name":"ENS","probed":false}, {"declared":"info@gblin.digital","index":5,"kind":"email","name":"email","probed":false}- endpoints_answered_not_live
- 1
- endpoints_declared
- 6
- endpoints_live
- 3
- endpoints_our_error
- 0
- endpoints_payment_gated
- 0
- endpoints_probeable
- 4
- endpoints_probed
- 4
- endpoints_refused
- 0
checked at 2026-10-07T19:37:51.488079Z
Has feedback?rung 7 · attested
failAt least one on-chain feedback entry names this agent.
did not pass
- distinct_authors
- 0
- feedback_count
- 0
- reason
- no_feedback
checked at 2026-10-07T15:58:01.653423Z
Check it again, now
outside the censusOn-chain snapshot
base- token id
- 59286
- owner
- 0x9ffa542e369c53af62380296092ec669f329a9ee
- block
- 52,281,733
- observed
- 2026-10-07T15:58:01.655865Z
What the fetch saw
https- scheme
- https
- http status
- 200
- content type
- application/json; charset=utf-8
- size
- 6,940 bytes
- sha256
- c57f37d313a007cdc70ffdf675b99bb2c9ddee893d2f938547300a6c25160189
- elapsed
- 631 ms
This run
reproducible- run
- c67de707-a82d-4589-8936-acd5a584c720
- chain
- base
- pinned block
- 52,281,733
- agents
- 98,319
- started
- 2026-10-07T06:00:13.662398Z
- finished
- 2026-10-07T19:18:37.899751Z
- checker
- 0.7.0 · 10238dd9af44dfa032e6578390569a413a6bb393
- spec commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
cargo run -p sweeper -- base # at block 52281733