{ "x402Version": 2, "kind": "resource-server", "name": "AOTrust", "description": "Cryptographic proof that a digital artifact existed at a specific time. Ed25519-signed PDR (239 bytes), leaves in a cumulative Merkle log anchored HOURLY to NEAR Mainnet (RFC 9162 inclusion/consistency proofs). $0.01 USDC per notarization on Base via x402.", "resources": [ { "resource": "https://api.aotrust.link/notarize", "url": "https://api.aotrust.link/notarize", "attestation": { "type": "none" }, "type": "http", "method": "POST", "x402Version": 2, "serviceName": "AOTrust Notary", "tags": [ "notarization", "ai-agents", "provenance" ], "accepts": [ { "scheme": "exact", "network": "eip155:8453", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "10000", "payTo": "0x97E9af6B4d8a49f509DA99afaB954429Ab8Cc800", "maxTimeoutSeconds": 300, "extra": { "name": "USD Coin", "version": "2" } } ], "extensions": { "bazaar": { "info": { "input": { "type": "http", "method": "POST", "bodyType": "json", "body": { "work_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", "work_size": 0, "metadata": "my-agent" } }, "output": { "type": "json", "example": { "status": "notarized", "job_id": "", "pdr_b64": "", "tx_hash": "<64 hex>", "payment_hash": "<64 hex>" } } }, "schema": { "type": "object", "properties": { "input": { "type": "object", "properties": { "type": { "type": "string", "const": "http" }, "method": { "type": "string", "enum": [ "POST" ] }, "bodyType": { "type": "string", "enum": [ "json" ] }, "body": { "type": "object", "properties": { "work_hash": { "type": "string", "pattern": "^[0-9a-f]{64}$" }, "work_size": { "type": "integer", "minimum": 0, "description": "Accepted for compatibility; not used by /notarize." }, "metadata": { "type": "string", "maxLength": 512, "description": "Accepted for compatibility; not used by /notarize." } }, "required": [ "work_hash" ] } }, "required": [ "type", "method", "bodyType", "body" ] }, "output": { "type": "object", "properties": { "type": { "type": "string" }, "example": { "type": "object" } }, "required": [ "type" ] } }, "required": [ "input" ] } } } }, { "resource": "https://shield.aotrust.link/shield", "url": "https://shield.aotrust.link/shield", "attestation": { "type": "none" }, "type": "http", "method": "POST", "x402Version": 2, "serviceName": "FreelanceShield", "tags": [ "shield", "freelance", "escrow" ], "accepts": [ { "scheme": "exact", "network": "eip155:8453", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "100000", "payTo": "0x97E9af6B4d8a49f509DA99afaB954429Ab8Cc800", "maxTimeoutSeconds": 300, "extra": { "name": "USD Coin", "version": "2" } } ], "extensions": { "bazaar": { "info": { "input": { "type": "http", "method": "POST", "bodyType": "json", "body": { "work_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", "work_size": 0, "email": "client@example.com" } }, "output": { "type": "json", "example": { "shield_id": "ab12cd34", "pdr_b64": "base64-pdr", "pdf_url": "https://shield.aotrust.link/api/pdf" } } }, "schema": { "type": "object", "properties": { "input": { "type": "object", "properties": { "type": { "type": "string", "const": "http" }, "method": { "type": "string", "enum": [ "POST" ] }, "bodyType": { "type": "string", "enum": [ "json" ] }, "body": { "type": "object", "properties": { "work_hash": { "type": "string", "pattern": "^[0-9a-f]{64}$" }, "work_size": { "type": "integer", "minimum": 0 }, "email": { "type": "string" } }, "required": [ "work_hash" ] } }, "required": [ "type", "method", "bodyType", "body" ] }, "output": { "type": "object", "properties": { "type": { "type": "string" }, "example": { "type": "object" } }, "required": [ "type" ] } }, "required": [ "input" ] } } } }, { "resource": "https://api.aotrust.link/v1/attestation/bundle", "url": "https://api.aotrust.link/v1/attestation/bundle", "attestation": { "type": "none" }, "type": "http", "method": "POST", "x402Version": 2, "serviceName": "AOTrust Evidence Bundle", "tags": [ "evidence", "notarization", "anchor", "merkle-proof" ], "accepts": [ { "scheme": "exact", "network": "eip155:8453", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "20000", "payTo": "0x97E9af6B4d8a49f509DA99afaB954429Ab8Cc800", "maxTimeoutSeconds": 300, "extra": { "name": "USD Coin", "version": "2" } } ], "extensions": { "bazaar": { "info": { "input": { "type": "http", "method": "POST", "bodyType": "json", "body": { "work_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" } }, "output": { "type": "json", "example": { "work_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", "seq": 186, "shield_id": "c693ca08", "pdr_b64": "base64-pdr", "pdr_version": "0x04", "anchor": { "mode": "cumulative", "anchor_seq": 63, "size": 189, "root": "0000000000000000000000000000000000000000000000000000000000000000", "near_tx": "near-tx", "index": 17, "path": [ "hex" ] }, "verify": { "jwks": "https://api.aotrust.link/.well-known/jwks.json", "server_url": "https://api.aotrust.link/v1/pdr/verify/", "offline": "leaf=SHA256(0x00||work_hash); RFC 9162 ยง2.1.3; root on NEAR" } } } }, "schema": { "type": "object", "properties": { "input": { "type": "object", "properties": { "type": { "type": "string", "const": "http" }, "method": { "type": "string", "enum": [ "POST" ] }, "bodyType": { "type": "string", "enum": [ "json" ] }, "body": { "type": "object", "properties": { "work_hash": { "type": "string", "pattern": "^[0-9a-f]{64}$" } }, "required": [ "work_hash" ] } }, "required": [ "type", "method", "bodyType", "body" ] }, "output": { "type": "object", "properties": { "type": { "type": "string" }, "example": { "type": "object" } }, "required": [ "type" ] } }, "required": [ "input" ] } } } }, { "resource": "https://api.aotrust.link/v1/attest/time", "url": "https://api.aotrust.link/v1/attest/time", "attestation": { "type": "none" }, "type": "http", "method": "POST", "x402Version": 2, "serviceName": "AOTrust Time Attestation", "tags": [ "timestamp", "attestation", "notarization", "merkle-proof" ], "accepts": [ { "scheme": "exact", "network": "eip155:8453", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "2000", "payTo": "0x97E9af6B4d8a49f509DA99afaB954429Ab8Cc800", "maxTimeoutSeconds": 300, "extra": { "name": "USD Coin", "version": "2" } } ], "extensions": { "bazaar": { "info": { "input": { "type": "http", "method": "POST", "bodyType": "json", "body": { "payload_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" } }, "output": { "type": "json", "example": { "id": 1, "ts": 1792707000123456789, "payload_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", "kid": "thumbprint", "sig_b64": "base64", "leaf": "hex", "log_index": 191 } } }, "schema": { "type": "object", "properties": { "input": { "type": "object", "properties": { "type": { "type": "string", "const": "http" }, "method": { "type": "string", "enum": [ "POST" ] }, "bodyType": { "type": "string", "enum": [ "json" ] }, "body": { "type": "object", "properties": { "payload_hash": { "type": "string", "pattern": "^[0-9a-f]{64}$" } }, "required": [ "payload_hash" ] } }, "required": [ "type", "method", "bodyType", "body" ] }, "output": { "type": "object", "properties": { "type": { "type": "string" }, "example": { "type": "object" } }, "required": [ "type" ] } }, "required": [ "input" ] } } } } ], "endpoints": { "mcp": "https://api.aotrust.link/mcp", "notarize": "https://api.aotrust.link/notarize", "shield": "https://shield.aotrust.link/shield", "verify": "https://verify.aotrust.link", "menu": "https://api.aotrust.link/menu", "tools": "https://api.aotrust.link/tools", "bundle": "https://api.aotrust.link/v1/attestation/bundle", "attest_time": "https://api.aotrust.link/v1/attest/time" }, "pricing": { "notarization": { "amount": "0.01", "currency": "USDC", "network": "eip155:8453", "networks": [ "eip155:8453", "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" ] }, "shield": { "amount": "0.10", "currency": "USDC", "network": "eip155:8453" }, "bundle": { "amount": "0.02", "currency": "USDC", "network": "eip155:8453" }, "time_attestation": { "amount": "0.002", "currency": "USDC", "network": "eip155:8453" } }, "capabilities": { "protocols": [ "x402", "MCP/A2A", "AOTrust signed message (NEP-413-style prefix)" ], "pdr_version": "2.4", "payment_anchor_types": [ "NEAR_DIRECT", "X402_BASE", "X402_SOLANA", "NEAR_ESCROW_LOCK", "NEAR_ESCROW_SETTLED" ], "pdr_versions": [ "2.3 (0x03)", "2.4 bilateral (0x04)" ] }, "docs": "https://docs.aotrust.link", "contact": "mailto:legal@aotrust.link", "verification": { "jwks_uri": "https://api.aotrust.link/.well-known/jwks.json", "did": "did:web:api.aotrust.link", "did_document": "https://api.aotrust.link/.well-known/did.json", "pdr_signature": "Ed25519 over AOTrust signed message (NEP-413-style prefix) buffer (u32 tag 2147484061 || u32 len || payload)", "pubkey_endpoint": "https://api.aotrust.link/v1/notary/pubkey", "offline_verify": "https://docs.aotrust.link/bilateral.html", "server_side_verify": "https://api.aotrust.link/v1/pdr/verify/" }, "updated": "2026-10-29T09:15:00Z", "facilitator_url": "https://api.aotrust.link", "extensions": { "bazaar": true, "signed_receipts": true } }