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headlessoracle.mmsebenzi-oracle.workers.dev
·
2026-05-18 12:54:56 UTC
·
623e105cbccedbec76b80d50ad60882fa0e39eca5fc1b43db5d04b1930e0d2b1
This is a frozen copy of the agent's agent-card.json as we observed it at the timestamp above. We capture a new snapshot every time the card's content hash changes. Useful for: forensic drift analysis, verifying downstream callers see the right version, reproducing routing decisions made historically.
{
"schemaVersion": "1.0",
"humanReadableId": "lembagang/headless-oracle",
"agentVersion": "5.0.0",
"name": "Headless Oracle",
"version": "v5.0",
"description": "Reference implementation of environment.market_state in the Verifiable Intent environment.* constraint family. Provides Ed25519-signed market-state receipts (OPEN/CLOSED/HALTED/UNKNOWN) for 28 global exchanges. Autonomous agents gate trade execution on cryptographically verified market state. Composes with environment.wallet_state for multi-venue mandates. Fail-closed: UNKNOWN always means CLOSED.",
"url": "https://headlessoracle.com",
"provider": {
"organization": "LembaGang",
"url": "https://headlessoracle.com"
},
"documentationUrl": "https://headlessoracle.com/docs",
"privacyPolicyUrl": "https://headlessoracle.com/privacy",
"termsOfServiceUrl": "https://headlessoracle.com/terms",
"quickstartUrl": "https://headlessoracle.com/docs/quickstart",
"capabilities": {
"a2aVersion": "1.0",
"streaming": false,
"pushNotifications": false,
"stateTransitionHistory": false
},
"authSchemes": [
{
"scheme": "api_key",
"description": "API key in X-Oracle-Key header",
"header_name": "X-Oracle-Key"
},
{
"scheme": "bearer_token",
"description": "OAuth 2.0 Bearer token (RFC 6749 client_credentials grant)"
},
{
"scheme": "oauth2",
"description": "OAuth 2.0 token endpoint",
"tokenUrl": "https://headlessoracle.com/oauth/token",
"scopes": [
"oracle:read"
]
}
],
"authentication": {
"schemes": [
"bearer",
"apiKey",
"x402"
],
"credentials": "https://headlessoracle.com/v5/keys/request"
},
"defaultInputModes": [
"application/json"
],
"defaultOutputModes": [
"application/json"
],
"tags": [
"finance",
"market-data",
"pre-trade",
"safety",
"ed25519",
"signed-receipts",
"fail-closed",
"mcp",
"x402",
"autonomous-agents"
],
"skills": [
{
"id": "get_market_status",
"name": "Get Market Status",
"description": "Pre-trade verification gate: returns Ed25519-signed market-state receipt (OPEN/CLOSED/HALTED/UNKNOWN) for any of 28 global exchanges. Use before any financial execution, capital commitment, or market-dependent workflow. UNKNOWN and HALTED must be treated as CLOSED (fail-closed). Receipt includes attestation_ref (signature) for x402 payment flows and audit trails. 60-second TTL.",
"tags": [
"finance",
"market-data",
"safety",
"signed-receipt",
"fail-closed"
],
"examples": [
"Is NYSE open right now?",
"Verify XLON is trading before executing this payment"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json"
]
},
{
"id": "get_market_schedule",
"name": "Get Market Schedule",
"description": "Returns holiday-aware trading session schedule: next open/close UTC times, market hours, trading hours, exchange operating hours, holiday calendar, lunch break windows (XJPX/XHKG/XSHG/XSHE), and session status across 28 exchanges.",
"tags": [
"finance",
"schedule",
"market-hours"
],
"examples": [
"When does Tokyo Stock Exchange open next?",
"What are XJPX trading hours?"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json"
]
},
{
"id": "list_exchanges",
"name": "List Exchanges",
"description": "Returns directory of all 28 supported exchanges with MIC codes, names, IANA timezones, and exchange operating hours metadata. Use at agent startup to discover supported markets before calling get_market_status or get_market_schedule.",
"tags": [
"finance",
"exchange-directory"
],
"examples": [
"Which exchanges does this oracle cover?"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json"
]
},
{
"id": "verify_receipt",
"name": "Verify Receipt Signature",
"description": "Verifies Ed25519 cryptographic proof on a Signed Market Attestation receipt \u2014 confirms genuine pre-trade verification attestation, receipt authenticity, and signature validity. REST endpoint for test harnesses and SDK authors; agents SHOULD prefer offline verification with the published public key.",
"endpoint": "/v5/verify",
"method": "POST",
"auth": false,
"tags": [
"finance",
"verification",
"cryptography",
"trust",
"rest-only"
]
},
{
"id": "get_sandbox_key",
"name": "Get Sandbox Key",
"description": "Provision a 7-day API key (200 calls). POST { \"email\": \"you@example.com\" } \u2014 email required, one per address.",
"endpoint": "/v5/sandbox",
"method": "POST",
"auth": false,
"input": {
"email": {
"type": "string",
"required": true,
"description": "Email address \u2014 key is sent to this address"
}
},
"output": {
"type": "object",
"properties": {
"api_key": {
"type": "string",
"description": "Sandbox API key (sb_ prefix)"
},
"tier": {
"type": "string",
"enum": [
"sandbox"
]
},
"expires_at": {
"type": "string",
"format": "date-time"
},
"calls_remaining": {
"type": "integer"
}
}
}
}
],
"fail_closed": true,
"supported_exchanges": [
"XNYS",
"XNAS",
"XLON",
"XJPX",
"XPAR",
"XHKG",
"XSES",
"XASX",
"XBOM",
"XNSE",
"XSHG",
"XSHE",
"XKRX",
"XJSE",
"XBSP",
"XSWX",
"XMIL",
"XIST",
"XSAU",
"XDFM",
"XNZE",
"XHEL",
"XSTO",
"XCBT",
"XNYM",
"XCBO",
"XCOI",
"XBIN"
],
"input_schema": {
"type": "object",
"properties": {
"mic": {
"type": "string",
"description": "ISO 10383 Market Identifier Code",
"examples": [
"XNYS",
"XLON",
"XJPX"
]
}
},
"required": [
"mic"
]
},
"output_schema": {
"type": "object",
"properties": {
"mic": {
"type": "string"
},
"status": {
"type": "string",
"enum": [
"OPEN",
"CLOSED",
"HALTED",
"UNKNOWN"
]
},
"timestamp": {
"type": "string",
"format": "date-time"
},
"expires_at": {
"type": "string",
"format": "date-time",
"description": "Receipt invalid after this time. Re-fetch required."
},
"issuer": {
"type": "string",
"example": "headlessoracle.com"
},
"key_id": {
"type": "string",
"example": "key_2026_v1"
},
"receipt_mode": {
"type": "string",
"enum": [
"demo",
"live"
]
},
"schema_version": {
"type": "string",
"example": "v5.0"
},
"signature": {
"type": "string",
"description": "Hex-encoded Ed25519 signature over canonical payload (alphabetical key sort, compact JSON)"
}
},
"required": [
"mic",
"status",
"timestamp",
"expires_at",
"issuer",
"key_id",
"receipt_mode",
"schema_version",
"signature"
]
},
"endpoints": {
"mcp": "https://headlessoracle.com/mcp",
"rest": "https://headlessoracle.com/v5/status",
"oauth": "https://headlessoracle.com/oauth/token",
"introspect": "https://headlessoracle.com/oauth/introspect",
"openapi": "https://headlessoracle.com/openapi.json"
},
"x402_payable": true,
"payment": {
"schemes": [
"x402"
],
"network": "eip155:8453",
"chain_id": 8453,
"currency": "USDC",
"amount_per_request": "0.001 USDC",
"amount_units": "1000",
"batch_amount_units": "5000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payment_endpoint": "https://headlessoracle.com/v5/status",
"subscription_endpoint": "https://headlessoracle.com/v5/checkout",
"mint_endpoint": "https://headlessoracle.com/v5/x402/mint",
"discovery": "https://headlessoracle.com/.well-known/x402.json",
"free_tier_daily_limit": 500
},
"standards": {
"verifiable_intent": {
"family": "environment.*",
"upstream_repo": "agent-intent/verifiable-intent",
"role": "reference implementation of environment.market_state",
"pull_requests": [
{
"constraint": "environment.market_state",
"pr": 9,
"url": "https://github.com/agent-intent/verifiable-intent/pull/9",
"status": "coordinated drafting"
},
{
"constraint": "environment.wallet_state",
"pr": 22,
"url": "https://github.com/agent-intent/verifiable-intent/pull/22",
"status": "coordinated drafting"
}
]
},
"predecessor_specs": {
"note": "SMA, APTS, and MPAS were earlier working-spec names for concepts now incorporated into the Verifiable Intent environment.* family. Preserved for citation continuity; brand names retired.",
"sma_protocol": "https://github.com/LembaGang/sma-protocol",
"apts_standard": "https://github.com/LembaGang/agent-pretrade-safety-standard",
"mpas_spec": "https://github.com/LembaGang/mpas-spec"
},
"conformance_vectors": "https://api.headlessoracle.com/v5/conformance-vectors",
"implementations_registry": "https://headlessoracle.com/v5/implementations",
"sma_disambiguation": "SMA denotes Signed Market Attestation, not Simple Moving Average"
},
"dst_aware": true,
"discovery_url": "https://headlessoracle.com/.well-known/agent.json",
"skill_url": "https://headlessoracle.com/skill.md",
"erc8004": "8453:38413",
"ampersend": "https://app.ampersend.ai/agents/headless-oracle",
"pre_trade_stack": {
"spec_url": "https://headlessoracle.com/docs/specifications/pre-trade-stack",
"json_url": "https://headlessoracle.com/v5/pre-trade-stack",
"pattern": "Composable Pre-Trade Verification Pattern (v2.0)",
"role": "execution-environment verification (environment.market_state)",
"composes_with": {
"environment_wallet_state": "https://github.com/agent-intent/verifiable-intent/pull/22",
"spend_authorization": "vendor-specific integration examples (e.g. Ampersend)",
"signal_verification": "vendor-specific integration examples (e.g. VeroQ)",
"payment": "x402 (Linux Foundation)"
}
},
"mcp": {
"endpoint": "https://headlessoracle.com/mcp",
"protocol_version": "2024-11-05",
"tools": [
{
"name": "get_market_status",
"description": "Pre-trade verification gate: Ed25519-signed market-state receipt (OPEN/CLOSED/HALTED/UNKNOWN) for 28 exchanges. Use before any trade execution, capital commitment, or financial workflow. UNKNOWN/HALTED = CLOSED (fail-closed). Includes attestation_ref for x402 payment flows.",
"parameters": {
"mic": "string (required) \u2014 ISO 10383 MIC code, e.g. XNYS"
}
},
{
"name": "get_market_schedule",
"description": "Holiday-aware trading session schedule: next open/close UTC times, market hours, exchange operating hours, holiday calendar, lunch breaks (XJPX/XHKG/XSHG/XSHE), session status for 28 exchanges.",
"parameters": {
"mic": "string (required) \u2014 ISO 10383 MIC code"
}
},
{
"name": "list_exchanges",
"description": "Directory of all 28 supported exchanges: MIC codes, names, timezones, exchange operating hours metadata. Call at agent startup to discover all supported MIC codes.",
"parameters": {}
}
]
},
"rest_api": {
"base_url": "https://headlessoracle.com",
"openapi_spec": "https://headlessoracle.com/openapi.json",
"endpoints": [
{
"path": "/v5/demo",
"method": "GET",
"auth": false,
"description": "Public signed receipt"
},
{
"path": "/v5/status",
"method": "GET",
"auth": true,
"description": "Authenticated signed receipt"
},
{
"path": "/v5/batch",
"method": "GET",
"auth": true,
"description": "Batch signed receipts for multiple MICs"
},
{
"path": "/v5/schedule",
"method": "GET",
"auth": false,
"description": "Next open/close times"
},
{
"path": "/v5/exchanges",
"method": "GET",
"auth": false,
"description": "All supported exchanges"
},
{
"path": "/mics.json",
"method": "GET",
"auth": false,
"description": "All 28 supported MICs with exchange metadata and ISO 20022 registry links"
},
{
"path": "/v5/archive",
"method": "GET",
"auth": false,
"description": "Historical receipt archive (Builder+: 30-day; sandbox/free: today only)"
},
{
"path": "/v5/stream",
"method": "GET",
"auth": true,
"description": "SSE stream of signed market_status events every 30s via StreamCoordinator Durable Object"
},
{
"path": "/v5/conformance-vectors",
"method": "GET",
"auth": false,
"description": "Live-signed canonical test vectors for SDK authors (5 vectors: XNYS OPEN/CLOSED, XJPX lunch, UNKNOWN, HEALTH OK)"
},
{
"path": "/v5/keys",
"method": "GET",
"auth": false,
"description": "Public key registry + canonical payload spec"
},
{
"path": "/v5/health",
"method": "GET",
"auth": false,
"description": "Signed liveness probe"
},
{
"path": "/.well-known/oracle-keys.json",
"method": "GET",
"auth": false,
"description": "RFC 8615 key discovery"
},
{
"path": "/v5/compliance",
"method": "GET",
"auth": false,
"description": "APTS compliance self-report \u2014 6 pre-trade safety checks"
},
{
"path": "/v5/metrics",
"method": "GET",
"auth": false,
"description": "MCP client telemetry \u2014 today's request and unique client counts"
},
{
"path": "/v5/dst-risk",
"method": "GET",
"auth": false,
"description": "DST transition risk \u2014 affected European exchanges, error windows, verified XLON schedule"
},
{
"path": "/v5/traction",
"method": "GET",
"auth": false,
"description": "Live traction metrics \u2014 exchanges, uptime, MCP usage, stack positioning"
},
{
"path": "/v5/metrics/public",
"method": "GET",
"auth": false,
"description": "Social-proof metrics \u2014 exchanges, uptime_days, tests_passing, signing_algorithm, x402 stats, MCPScoreboard preflight score"
},
{
"path": "/v5/usage",
"method": "GET",
"auth": true,
"description": "Per-key usage stats \u2014 requests today/month, limits, credits, upgrade info"
},
{
"path": "/v5/changelog",
"method": "GET",
"auth": false,
"description": "Versioned changelog \u2014 entries[], each with date, version, changes[]"
},
{
"path": "/badge/:mic",
"method": "GET",
"auth": false,
"description": "SVG status badge for README embedding (shields.io style)"
}
],
"auth": {
"header": "X-Oracle-Key",
"missing": 401,
"invalid": 403,
"payment_required": 402
}
},
"trust": {
"algorithm": "Ed25519",
"key_id_prefix": "03dc2799",
"key_registry": "https://headlessoracle.com/v5/keys",
"well_known": "https://headlessoracle.com/.well-known/oracle-keys.json",
"verify_sdk": "npm:@headlessoracle/verify"
},
"safety": {
"fail_closed": true,
"unknown_means": "CLOSED \u2014 halt all execution",
"receipt_ttl_sec": 60
}
}