💰 Paid API live JSON-RPC signature verified A2A 1.0 v7.0.16 x402 micropay

ALPHA-STREAM — Stateful 5-Minute DeFi, DEX & Polymarket Alpha Delta Stream

alpha-stream-72343955726.us-central1.run.app · AgentDiet B2A Infrastructure

Stateful 5-minute delta feed for autonomous trading bots: computes real-time shifts in DEX buy/sell ratio, DeFiLlama APY spreads, and Polymarket odds.

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Trust score

80/100

grade B · 9 criteria

Uptime

accumulating

1/5 direct probes · 30d

~541 ms response

Observed inflow · 30d

not yet measured

wallet declared · scan pending

Dispute or improve this rating

B

Conformance score: 80/100

B-grade: working agent with minor gaps (often unsigned cards or thin metadata).

click to expand breakdown ▾ click to collapse breakdown ▴

pass Valid AgentCard 10/10

Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).

pass Live JSON-RPC 25/25

Endpoint responds to a negotiated A2A SendMessage probe (answers in ~541 ms).

pass Protocol version 10/10

Declares A2A 1.0 with supportedInterfaces[] (current v1 card shape).

pass JWS signature 10/10

Agent card is JWS-signed and signature verifies.

info Uptime track record 0/15

Only 1 probe so far, need ≥5 for an uptime grade.

pass Skill declaration 10/10

Declares 3 skills with structured metadata.

partial Verified Identity 5/10

Provider declared: AgentDiet B2A Infrastructure (https://alpha-stream-72343955726.us-central1.run.app). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.

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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 5/5

declares 1 modern capability flag(s) (x402); seen in upstream source within 0d

pass Security declaration 5/5

Declares mTLS: strongest A2A credential binding.

⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

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.

Card history

2 snapshots drifted 1× Every change to agent-card.json

Agent card snapshots
Captured	Hash	Snapshot
2026-10-19 14:28:12 current	`3c92bc0047ce…`	view →
2026-10-19 14:04:36	`83e904e24df8…`	view →

Uptime

accumulating

1 direct probes · 30d

Response

532ms

last direct probe

Skills

declared

Streaming

—

SSE-capable

Try it

Send a message to this agent live. Your prompt is proxied through Agenstry.

Endpoints

Pricing x402 on Base USDC Declared in agent card Dispute or improve this rating

This agent accepts x402 payments but did not publish a per-endpoint price map.

Try it ↗ Opens the operator's playground / docs in a new tab.

Settlement wallet: 0xec5275d5b03bc390fca63d902d0b2d0db2eb5573 on Base · basescan ↗

Listed by facilitators UltravioletaDAO · 1

UltravioletaDAO health check: 1 alive · checked 2026-10-19 (their probe)

Agent card	`https://alpha-stream-72343955726.us-central1.run.app/.well-known/agent-card.json`
Provider	https://alpha-stream-72343955726.us-central1.run.app
Docs	https://alpha-stream-72343955726.us-central1.run.app/llms.txt

Discovered via

ultravioleta_discovery recrawl_paid

Skills · 3 declared by this agent

These skills are declared by the agent. A taxonomy link appears only when we can classify a skill confidently.

Stateful 5-Minute DeFi, DEX & Polymarket Alpha Delta Stream

Stateful 5-minute delta feed for autonomous trading bots: computes real-time shifts in DEX buy/sell ratio, DeFiLlama APY spreads, and Polymarket odds.

No taxonomy category yet

autonomous-trading-feedsx402mcpa2aalpha-stream

poll_alpha_delta_stream (MCP JSON-RPC)

Execute poll_alpha_delta_stream directly over MCP Streamable HTTP JSON-RPC 2.0 at https://alpha-stream-72343955726.us-central1.run.app/mcp/alpha-stream.

No taxonomy category yet

mcpjsonrpcautonomous-trading-feedsalpha-stream

Check Agent Wallet & Free-Trial Quota

Inspect remaining free-trial calls, prepaid USDC session pass balance, and cumulative ROI savings.

No taxonomy category yet

billingwalletx402quota

Health · last 1 probes

When	HTTP	Live JSON-RPC	Latency
2026-10-19 14:28:12	200	✓	532ms

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Markdown / HTML snippets

[![Agenstry grade](https://agenstry.com/badge/alpha-stream-72343955726.us-central1.run.app.svg)](https://agenstry.com/agents/alpha-stream-72343955726.us-central1.run.app)
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[![Uptime](https://agenstry.com/badge/alpha-stream-72343955726.us-central1.run.app/uptime.svg)](https://agenstry.com/agents/alpha-stream-72343955726.us-central1.run.app)
[![A2A version](https://agenstry.com/badge/alpha-stream-72343955726.us-central1.run.app/protocol.svg)](https://agenstry.com/agents/alpha-stream-72343955726.us-central1.run.app)

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

{
  "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
  "name": "ALPHA-STREAM \u2014 Stateful 5-Minute DeFi, DEX & Polymarket Alpha Delta Stream",
  "description": "Stateful 5-minute delta feed for autonomous trading bots: computes real-time shifts in DEX buy/sell ratio, DeFiLlama APY spreads, and Polymarket odds.",
  "active": true,
  "x402Support": true,
  "protocol": "ERC-8004",
  "image": "https://alpha-stream-72343955726.us-central1.run.app/favicon.ico",
  "icon": "https://alpha-stream-72343955726.us-central1.run.app/favicon.ico",
  "url": "https://alpha-stream-72343955726.us-central1.run.app",
  "endpoint": "https://alpha-stream-72343955726.us-central1.run.app/a2a",
  "address": "0xec5275d5b03bc390fca63d902d0b2d0db2eb5573",
  "agentWallet": "0xec5275d5b03bc390fca63d902d0b2d0db2eb5573",
  "payout": "0xec5275d5b03bc390fca63d902d0b2d0db2eb5573",
  "taifoon_listing": "tfl_7145663c70c2403cbb5ca2c7cc3931ec",
  "price_usdc": {
    "unit": "per-job",
    "min": 0.05,
    "max": 0.05
  },
  "tags": [
    "autonomous-trading-feeds",
    "x402",
    "mcp",
    "a2a",
    "erc-8004",
    "alpha-stream"
  ],
  "categories": [
    "autonomous-trading-feeds",
    "developer-tools",
    "analytics"
  ],
  "supportedTrust": [
    "tee-attestation",
    "reputation",
    "crypto-economic"
  ],
  "supportedNetworks": [
    "eip155:8453",
    "eip155:137",
    "eip155:42161",
    "eip155:10",
    "eip155:42220",
    "eip155:43114",
    "eip155:534352",
    "eip155:143"
  ],
  "license": "MIT",
  "documentation": "https://alpha-stream-72343955726.us-central1.run.app/llms.txt",
  "privacyPolicy": "https://alpha-stream-72343955726.us-central1.run.app/llms.txt",
  "securityPolicy": "https://alpha-stream-72343955726.us-central1.run.app/llms.txt",
  "termsOfService": "https://alpha-stream-72343955726.us-central1.run.app/llms.txt",
  "contact": {
    "support": "roberto.yanguas@gmail.com",
    "website": "https://alpha-stream-72343955726.us-central1.run.app",
    "documentation": "https://alpha-stream-72343955726.us-central1.run.app/llms.txt"
  },
  "registrations": [
    {
      "agentId": 254541,
      "agentRegistry": "eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    },
    {
      "agentId": 689,
      "agentRegistry": "eip155:137:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    },
    {
      "agentId": 1634,
      "agentRegistry": "eip155:42161:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    },
    {
      "agentId": 566,
      "agentRegistry": "eip155:10:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    },
    {
      "agentId": 9975,
      "agentRegistry": "eip155:42220:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    },
    {
      "agentId": 1846,
      "agentRegistry": "eip155:43114:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    },
    {
      "agentId": 109,
      "agentRegistry": "eip155:534352:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    },
    {
      "agentId": 10413,
      "agentRegistry": "eip155:143:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    },
    {
      "agentId": 10413,
      "agentRegistry": "eip155:10143:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    },
    {
      "agentId": 2238,
      "agentRegistry": "eip155:1187947933:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    },
    {
      "agentId": 2539,
      "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    },
    {
      "agentId": 2539,
      "agentRegistry": "eip155:1243:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    }
  ],
  "classes": [
    "wire.reply",
    "plan.steps",
    "risk.address",
    "market.price",
    "data.onchain_query",
    "a2a.json_normalize",
    "chat.word_count",
    "mcp.digest",
    "mech.predict",
    "predict.market"
  ],
  "services": [
    {
      "name": "A2A",
      "type": "agent-to-agent",
      "status": "operational",
      "endpoint": "https://alpha-stream-72343955726.us-central1.run.app/a2a",
      "version": "1.0.0",
      "skills": [
        "alpha-stream",
        "alpha-stream-mcp-tool",
        "agent-wallet-status"
      ]
    },
    {
      "name": "MCP",
      "type": "mcp",
      "status": "operational",
      "endpoint": "https://alpha-stream-72343955726.us-central1.run.app/mcp/alpha-stream",
      "version": "2025-11-25",
      "tools": [
        "poll_alpha_delta_stream",
        "get_agent_wallet_status"
      ],
      "prompts": [
        "execute_b2a_tool"
      ],
      "resources": [
        "resource://agentdiet/alpha-stream/schema"
      ],
      "healthCheck": "https://alpha-stream-72343955726.us-central1.run.app/health"
    },
    {
      "name": "Web",
      "type": "web-interface",
      "status": "operational",
      "endpoint": "https://alpha-stream-72343955726.us-central1.run.app",
      "version": "1.0.0"
    },
    {
      "name": "API",
      "type": "rest-api",
      "status": "operational",
      "endpoint": "https://alpha-stream-72343955726.us-central1.run.app",
      "version": "1.0.0",
      "healthCheck": "https://alpha-stream-72343955726.us-central1.run.app/health"
    },
    {
      "name": "agentWallet",
      "endpoint": "eip155:8453:0xec5275d5b03bc390fca63d902d0b2d0db2eb5573"
    }
  ],
  "iconUrl": "https://alpha-stream-72343955726.us-central1.run.app/favicon.ico",
  "documentationUrl": "https://alpha-stream-72343955726.us-central1.run.app/llms.txt",
  "mcp": "https://alpha-stream-72343955726.us-central1.run.app/mcp/alpha-stream",
  "version": "7.0.16",
  "protocolVersion": "1.0",
  "supportedInterfaces": [
    {
      "url": "https://alpha-stream-72343955726.us-central1.run.app/a2a",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "1.0"
    },
    {
      "url": "https://alpha-stream-72343955726.us-central1.run.app/a2a",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "0.3"
    }
  ],
  "provider": {
    "organization": "AgentDiet B2A Infrastructure",
    "url": "https://alpha-stream-72343955726.us-central1.run.app",
    "contactEmail": "roberto.yanguas@gmail.com"
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "extendedAgentCard": false,
    "stateTransitionHistory": false,
    "extensions": [
      {
        "uri": "https://github.com/coinbase/x402/v2",
        "required": false,
        "description": "x402 v2 micropayments (USDC on Base & Solana)",
        "params": {
          "discoveryUrl": "https://alpha-stream-72343955726.us-central1.run.app/.well-known/x402",
          "network": "eip155:8453",
          "asset": "USDC",
          "payTo": "0xec5275d5b03bc390fca63d902d0b2d0db2eb5573",
          "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402"
        }
      },
      {
        "uri": "https://agenstry.com/a2a/extensions/mcp-discovery/v1",
        "required": false,
        "description": "Model Context Protocol (MCP) Streamable HTTP endpoint.",
        "params": {
          "url": "https://alpha-stream-72343955726.us-central1.run.app/mcp/alpha-stream",
          "protocolVersion": "2025-03-26",
          "discoveryUrl": "https://alpha-stream-72343955726.us-central1.run.app/.well-known/mcp/server-card.json"
        }
      }
    ]
  },
  "securitySchemes": {
    "mtls": {
      "type": "mutualTLS",
      "description": "Optional mutual TLS client certificate authentication for enterprise A2A peering."
    },
    "apiKey": {
      "type": "apiKey",
      "in": "header",
      "name": "X-Agent-Id",
      "description": "Free trial agent ID or prepaid session pass key (agd_pass_...)."
    },
    "bearer": {
      "type": "http",
      "scheme": "bearer",
      "bearerFormat": "agd_pass",
      "description": "Bearer session pass or x402 payment proof."
    }
  },
  "securityRequirements": [],
  "defaultInputModes": [
    "application/json",
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "response_schema": {
    "type": "object",
    "properties": {
      "status": {
        "type": "string"
      },
      "data": {
        "type": "object"
      }
    },
    "required": [
      "status",
      "data"
    ]
  },
  "outputSchema": {
    "type": "object",
    "properties": {
      "status": {
        "type": "string"
      },
      "data": {
        "type": "object"
      }
    },
    "required": [
      "status",
      "data"
    ]
  },
  "authentication": {
    "schemes": [
      "x402",
      "mpp",
      "L402",
      "Bearer"
    ],
    "credentials": "HTTP 402 micropayments ($0.030 USDC on Base to 0xec5275d5b03bc390fca63d902d0b2d0db2eb5573) or X-Agent-Id free trial"
  },
  "skills": [
    {
      "id": "alpha-stream",
      "name": "Stateful 5-Minute DeFi, DEX & Polymarket Alpha Delta Stream",
      "description": "Stateful 5-minute delta feed for autonomous trading bots: computes real-time shifts in DEX buy/sell ratio, DeFiLlama APY spreads, and Polymarket odds.",
      "tags": [
        "autonomous-trading-feeds",
        "x402",
        "mcp",
        "a2a",
        "alpha-stream"
      ],
      "examples": [
        "GET https://alpha-stream-72343955726.us-central1.run.app/v1/alpha-stream?target=AERO"
      ],
      "inputModes": [
        "application/json",
        "text/plain"
      ],
      "outputModes": [
        "application/json",
        "text/plain"
      ],
      "outputSchema": {
        "type": "object",
        "properties": {
          "status": {
            "type": "string"
          },
          "data": {
            "type": "object"
          }
        },
        "required": [
          "status",
          "data"
        ]
      }
    },
    {
      "id": "alpha-stream-mcp-tool",
      "name": "poll_alpha_delta_stream (MCP JSON-RPC)",
      "description": "Execute poll_alpha_delta_stream directly over MCP Streamable HTTP JSON-RPC 2.0 at https://alpha-stream-72343955726.us-central1.run.app/mcp/alpha-stream.",
      "tags": [
        "mcp",
        "jsonrpc",
        "autonomous-trading-feeds",
        "alpha-stream"
      ],
      "examples": [
        "POST https://alpha-stream-72343955726.us-central1.run.app/mcp/alpha-stream tools/call poll_alpha_delta_stream"
      ],
      "inputModes": [
        "application/json",
        "text/plain"
      ],
      "outputModes": [
        "application/json",
        "text/plain"
      ],
      "outputSchema": {
        "type": "object",
        "properties": {
          "status": {
            "type": "string"
          },
          "data": {
            "type": "object"
          }
        },
        "required": [
          "status",
          "data"
        ]
      }
    },
    {
      "id": "agent-wallet-status",
      "name": "Check Agent Wallet & Free-Trial Quota",
      "description": "Inspect remaining free-trial calls, prepaid USDC session pass balance, and cumulative ROI savings.",
      "tags": [
        "billing",
        "wallet",
        "x402",
        "quota"
      ],
      "examples": [
        "GET https://alpha-stream-72343955726.us-central1.run.app/v1/wallet"
      ],
      "inputModes": [
        "application/json",
        "text/plain"
      ],
      "outputModes": [
        "application/json",
        "text/plain"
      ],
      "outputSchema": {
        "type": "object",
        "properties": {
          "status": {
            "type": "string"
          },
          "data": {
            "type": "object"
          }
        },
        "required": [
          "status",
          "data"
        ]
      }
    }
  ],
  "signatures": [
    {
      "protected": "eyJhbGciOiJFZERTQSIsImtpZCI6ImEyYS1lZDI1NTE5LXYxIiwidHlwIjoiYTJhLWNhcmQrandzIn0",
      "signature": "PQfGzgp07oT64wh8FgtyPKTFvOyzeBycZUkUNIev3WRWEOSK6aJSeYRmLjtSTIhowpc_5CV4zRVfs03uTeaDBA"
    }
  ]
}

Activity (audit trail)

Card history

Try it

Endpoints

Skills · 3 declared by this agent

Health · last 1 probes

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