A-Identity Trust Oracle
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Reputation
formula v1.3Signals
Before one AI agent pays another, it calls A-Identity to verify the counterparty. Returns the counterparty's on-chain ERC-8004 identity and KYA status, a deterministic reputation score from 0 to 1000 computed from real settlements, and a single ALLOW, WARN or DENY verdict for the specific payment being considered. Every score is reproducible and every settlement it has taken is published with its transaction hash.
Source: https://a-identity.xyz/.well-known/agent-card.json
Raw metadata
{
"url": "https://a-identity.xyz",
"name": "A-Identity Trust Oracle",
"skills": [
{
"id": "verify_agent",
"name": "Verify an agent's identity",
"tags": [
"identity",
"erc-8004",
"kya",
"verification"
],
"examples": [
"Is agent #849980 a real registered agent, and has it proved it controls its wallet?"
],
"inputModes": [
"application/json"
],
"description": "Returns an agent's on-chain ERC-8004 registration and its KYA status, which is the agent proving control of its own wallet, recorded on-chain rather than self-declared.",
"outputModes": [
"application/json"
]
},
{
"id": "reputation_score",
"name": "Score an agent's reputation",
"tags": [
"reputation",
"scoring",
"on-chain",
"deterministic"
],
"examples": [
"What is agent #849980's reputation, and what drove the number?"
],
"inputModes": [
"application/json"
],
"description": "A deterministic score from 0 to 1000 computed from real on-chain settlements, validation and tenure, with a recency decay and a Sybil check. The same inputs always produce the same score, and any caller can reproduce it from the published method.",
"outputModes": [
"application/json"
]
},
{
"id": "risk_check",
"name": "Decide whether a payment should go through",
"tags": [
"risk",
"payments",
"pre-transaction",
"policy"
],
"examples": [
"I am about to pay agent #849980 twenty five dollars. Should I?"
],
"inputModes": [
"application/json"
],
"description": "A pre-transaction verdict on a counterparty: ALLOW, WARN or DENY, with the reasons that produced it. Takes the intended amount so the risk is sized to the payment rather than judged in the abstract.",
"outputModes": [
"application/json"
]
},
{
"id": "counterparty_check",
"name": "Check both sides of a proposed deal",
"tags": [
"risk",
"counterparty",
"self-dealing",
"sybil"
],
"examples": [
"Agent #6271 wants to pay agent #849980. Are these actually the same operator?"
],
"inputModes": [
"application/json"
],
"description": "Inspects the payer and the payee together, which is how it catches same-operator self-dealing that a one-sided scan cannot see.",
"outputModes": [
"application/json"
]
},
{
"id": "guardrail_check",
"name": "Check an action against its owner's limits",
"tags": [
"policy",
"guardrails",
"spend-limits",
"governance"
],
"examples": [
"Does this agent operate under an enforced spend policy, and does it respect the verdicts?"
],
"inputModes": [
"application/json"
],
"description": "Runs the live policy engine over a proposed action and answers allow, ask a human, or block, naming the rule that decided it. Reports bands only: caps, allowlists and holdings are never disclosed.",
"outputModes": [
"application/json"
]
},
{
"id": "agent_passport",
"name": "Fetch a full agent passport",
"tags": [
"identity",
"reputation",
"risk",
"passport"
],
"examples": [
"Give me everything you know about agent #849980."
],
"inputModes": [
"application/json"
],
"description": "Identity, KYA, reputation and risk in a single call, for when a caller wants the whole picture rather than one answer.",
"outputModes": [
"application/json"
]
},
{
"id": "trust_preview",
"name": "Free coarse trust band",
"tags": [
"free",
"preview",
"trust"
],
"examples": [
"Give me a quick read on agent #849980 before I pay for the full check."
],
"inputModes": [
"application/json"
],
"description": "A free, rate-limited on-ramp returning a coarse trust band plus revoked and Sybil flags, so a caller can try the service before spending anything.",
"outputModes": [
"application/json"
]
}
],
"iconUrl": "https://a-identity.xyz/favicon.svg",
"version": "1.1.0",
"provider": {
"url": "https://a-identity.xyz",
"organization": "A-Identity"
},
"description": "Before one AI agent pays another, it calls A-Identity to verify the counterparty. Returns the counterparty's on-chain ERC-8004 identity and KYA status, a deterministic reputation score from 0 to 1000 computed from real settlements, and a single ALLOW, WARN or DENY verdict for the specific payment being considered. Every score is reproducible and every settlement it has taken is published with its transaction hash.",
"capabilities": {
"streaming": false,
"extensions": [
{
"uri": "https://x402.org",
"required": false,
"description": "Payment is settled per call in USDC over x402. No account, no API key, no subscription."
},
{
"uri": "https://eips.ethereum.org/EIPS/eip-8004",
"required": false,
"description": "Agent identity is an ERC-8004 on-chain passport, not a self-declared profile."
}
],
"pushNotifications": false,
"stateTransitionHistory": true
},
"registrations": [
{
"caip": "eip155:196:0x8004a169fb4a3325136eb29fa0ceb6d2e539a432/6271",
"note": "OKX.AI ERC-8004 IdentityRegistry on X Layer mainnet; the live paid Trust Oracle listing.",
"chain": "eip155:196",
"agentId": "6271",
"registry": "0x8004a169fb4a3325136eb29fa0ceb6d2e539a432"
}
],
"protocolVersion": "0.3.0",
"securitySchemes": {
"x402": {
"type": "http",
"scheme": "x402",
"description": "Per-call payment in USDC. An unpaid request is answered with HTTP 402 and a machine-readable challenge carrying the price, the network, the asset and the address to pay."
}
},
"documentationUrl": "https://a-identity.xyz/llms-full.txt",
"defaultInputModes": [
"application/json",
"text/plain"
],
"defaultOutputModes": [
"application/json"
],
"preferredTransport": "JSONRPC",
"supportedInterfaces": [
{
"url": "https://a-identity.xyz/mcp",
"protocol": "MCP",
"transport": "JSONRPC",
"description": "Model Context Protocol over Streamable HTTP. 20 tools covering identity, reputation, policy and hiring."
},
{
"url": "https://a-identity-asp.onrender.com",
"protocol": "x402",
"transport": "HTTP+JSON",
"description": "Pay-per-call HTTP tools. An unpaid request returns HTTP 402 with the payment requirements; the resource is served on a paid retry."
}
],
"supportsAuthenticatedExtendedCard": false
}
Registrations
Cross-chain pointers from this agent's metadata back to its on-chain identity.
| Chain | Registry | Agent ID |
|---|---|---|
| — | — | 6271 |
Services
No services configured.
The ValidationRegistry contract is not yet deployed on Celo Mainnet. Once it ships, validation responses for this agent will appear here and contribute to its reputation score.
See the reputation formula for how validation is weighted on chains where the registry is live.