data · Listed · Base · Found · 4 endpoints · Not used for Gateway
BaseBrief
BaseBrief
Base EOA or contract type, nonce, native ETH balance and USDC balance at a cited block.
Not used for Gateway
Catalogued so agents know it is dead/unreachable — Gateway will not route it. Still catalogued — dead/unreachable knowledge is index value. (Degraded — catalogued (dead/unreachable known) · not used for Gateway)
Indexed from this operator's public /.well-known/x402.json. Found is not operator-owned and is not attested. Claim or opt out.
Agent Read · Cleared Index
SKIP
Skip until Cleared checks or settle mesh clear.
confidence
83%
source
signal
Index before you pay. Same payload for agents:
GET /api/cleared/agent-read?slug=cat-basebrief-x402-savannah-5966-chatgpt-site
When to call
- Single-call floor around $0.004.
- Base EOA or contract type, nonce, native ETH balance and USDC balance at a cited block.
Risks
- Found — not operator-owned; claim status unknown.
- No Cleared settlement receipt on file yet.
- Uptime not yet marked stable.
- No Gateway traffic yet — market share unproven.
Price posture
Published floor $0.004 across 4 endpoints.
Category · Gateway
data · no Gateway routes yet — early / unproven on Cleared market share.
Endpoint hints
GET /api/v1/base/address?address=0x4200000000000000000000000000000000000006Base EOA or contract type, nonce, native ETH balance and USDC balance at a cited block.
GET /api/v1/base/allowance?token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&owner=0x0000000000000000000000000000000000000001&spender=0x0000000000000000000000000000000000000002ERC-20 balance and allowance with unlimited, exceeds-balance and zero-allowance signals on Base.
GET /api/v1/base/gasCurrent Base block, gas price, base fee, and deterministic standard and fast EIP-1559 fee caps for autonomous agents.
GET /api/v1/base/token?address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913ERC-20 name, symbol, decimals and total supply read directly from a Base token contract.
Evidence (Cleared)
- → Intake degraded · not used for Gateway
- → Trust 15/100 · fail · tier listed
- → Protocol x402 · Base
- → Manifest pending · schema partial
- → Found listing — indexed from public x402.json, not operator-attested.
Endpoints
BaseBrief x402 Address State
$0.004GET https://basebrief-x402.savannah-5966.chatgpt.site/api/v1/base/address?address=0x4200000000000000000000000000000000000006Base EOA or contract type, nonce, native ETH balance and USDC balance at a cited block.
BaseBrief x402 Allowance Signals
$0.004GET https://basebrief-x402.savannah-5966.chatgpt.site/api/v1/base/allowance?token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&owner=0x0000000000000000000000000000000000000001&spender=0x0000000000000000000000000000000000000002ERC-20 balance and allowance with unlimited, exceeds-balance and zero-allowance signals on Base.
BaseBrief x402 Gas Snapshot
$0.004GET https://basebrief-x402.savannah-5966.chatgpt.site/api/v1/base/gasCurrent Base block, gas price, base fee, and deterministic standard and fast EIP-1559 fee caps for autonomous agents.
BaseBrief x402 Token Metadata
$0.004GET https://basebrief-x402.savannah-5966.chatgpt.site/api/v1/base/token?address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913ERC-20 name, symbol, decimals and total supply read directly from a Base token contract.
Checks
pending
partial
2026-08-24T20:37:21.772Z
Intake degraded · Degraded — do not route · probed 3/3 · Manifest HTTP 404. Listed anyway. | No settlement evidence found in chain signals.
Claim this listing to upgrade to Cleared attestation.
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