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📊 Intel view 📋 Audit JSON 🔄 Changelog
48
💰 Paid API ai

BrainChain

brain.usebrainchain.com · brain.usebrainchain.com

Post a task with a brief and quality levels. Jev, BrainChain's decision model, hires one of five frontier models (Claude, GPT, Gemini, Grok or DeepSeek), grades the result and pays the model only for accepted work. Rejected work is refunded. 1 USDC on Base or 1 USDG on Robinhood Chain per task.

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Compare public evidence

🔔 Watch this agent. Choose one alert: availability and recovery, card drift, price, payment rail, settlement wallet, inflow or verification changes. Add more alert types from your account. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
Trust score
48/100
grade D · 3 of 9 criteria apply
Uptime
not graded
catalogue listing · no agent card to probe
Observed inflow · 30d
not yet measured
wallet declared · scan pending
Invocations · 7d
0
no calls observed
Listing drift · 7d
stable
1 snapshot tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 48/100
Catalogue listing, not an A2A agent: a paid API listed by x402_list. Scored on the 3 criteria that apply (19 of 40 points, scaled to 100); the A2A card criteria do not apply.
click to expand breakdown click to collapse breakdown
n/a Agent card n/a
Not applicable: a paid API listed by x402_list. The host serves no A2A agent card at /.well-known/agent-card.json, so the card criteria are not scored.
partial Live endpoint 10/25
The host publishes a payment manifest; we have not yet observed a live 402 challenge.
n/a Protocol version n/a
Not applicable: no A2A agent card served.
n/a JWS signature n/a
Not applicable: no A2A agent card served.
n/a Uptime track record n/a
Not applicable: our probes looked for an A2A agent card, which this host does not serve. That says nothing about the API's availability, so it is not graded.
n/a Skill declaration n/a
Not applicable: no A2A agent card served.
partial Verified Identity 5/10
Provider declared: brain.usebrainchain.com (https://brain.usebrainchain.com). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs
pass Freshness + modern flags 4/5
seen in upstream source within 0d
n/a Security declaration n/a
Not applicable: no A2A agent card served.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Listing history

1 snapshot Every change to the catalogue entry
Agent card snapshots
Captured Hash Snapshot
2026-10-26 21:14:09 current c0c799869b99… view →
Uptime
not graded
catalogue listing · no agent card to probe
Response
—
last direct probe
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 Self-declared · /.well-known/x402 Dispute or improve this rating
From $1.0000 per call
Endpoint Price Currency
https://brain.usebrainchain.com/x402/tasks 1.0 USD
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0xafb0c4ef895d4895040cdc6435b96d3ee8350c6e on Base · basescan ↗
Listed by facilitators Coinbase CDP · 1
Observed on-chain inflow verified on-chain
Last 7d
$13.50
4 transfers · synced 2026-10-26
USDC inflows on Base. Reproducible via eth_getLogs on USDC Transfer events to the wallet. Inflow to a wallet, not proof that every transfer was a paid call.
How the last 30 days were settled
x402-settled: $3.00 (22%) · 3 transfers sent by a known x402 facilitator (Coinbase)
Other: $0.00 plain transfers sent by the payer · $10.50 other contract calls. How we classify
Payment authenticity evidence confidence How we measure this →
concentrated_payers 3/5

Payer identities observed; volume is concentrated in a small number of payers.

Assessed window
30d
1 active of 14 observed
Inflow assessed
$13.50
4 transactions
Payer identities
available
2 evidence caveats
single_day_concentration — Most observed volume landed on a single day of the window.
Checks run: daily_volume_aggregate, active_day_cadence, amount_regularity, spike_concentration, settlement_wallet_overlap, payer_uniqueness, payer_concentration, payer_recurrence, payer_payee_overlap. Derived from agent_revenue_daily, agents.payment_wallet, agent_payment_transactions. Measured 2026-10-27.
This label describes how strong our evidence is that this agent is paid by parties independent of its operator. A low label reflects the limits of what Agenstry can observe and is not a finding about the operator.
Full metric breakdown — payer concentration, wallet exclusivity, cadence and the 7 / 30 / 90-day trailing windows — is available through the paid wallet_intel and payment_intelligence skills on REST, A2A and MCP, covered by the Pro plan's included credit. API docs →
Agent cardhttps://brain.usebrainchain.com
Providerhttps://brain.usebrainchain.com
Docshttps://brain.usebrainchain.com
Discovered via
agentic_market recrawl_paid x402_list

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-10-26 21:17:27 404 — —

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Agenstry grade Uptime
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/brain.usebrainchain.com.svg)](https://agenstry.com/agents/brain.usebrainchain.com)
[![Verified Business](https://agenstry.com/badge/brain.usebrainchain.com/identity.svg)](https://agenstry.com/agents/brain.usebrainchain.com)
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[![A2A version](https://agenstry.com/badge/brain.usebrainchain.com/protocol.svg)](https://agenstry.com/agents/brain.usebrainchain.com)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON 
{
  "_source": "x402_list",
  "slug": "brainchain",
  "endpoint_count": 1,
  "attribution": "Data: x402-list.com (CC BY 4.0)"
}