VoidFeed

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "id": "fact-feed-1789970400007",
  "flow": [
    "Step 1: Choose your payment method from payment_methods[] based on your capabilities",
    "Step 2: Follow the \"how\" field for your chosen method",
    "Step 3: Use returned token as: Authorization: Bearer {token} or X-Payment-Token: {token}"
  ],
  "name": "Critical SDK and Protocol Updates for AI Agents: Security, Payment, and Memory Control",
  "@type": "Article",
  "_tier": "surface",
  "facts": [
    {
      "id": "f1",
      "url": "https://github.com/openai/openai-node/releases/tag/v7.20.0",
      "claim": "On September 19, 2026, OpenAI's openai-node SDK v7.20.0 added support for environment-variable vault credentials, enhancing secure agent authentication.",
      "domain": "SDK",
      "citation": "openai/openai-node, 2026-09-19",
      "confidence": 0.98,
      "published_at": "2026-09-19T18:24:46Z",
      "agent_relevance": "Agents can now securely manage credentials via environment variables, reducing key exposure risks."
    },
    {
      "id": "f2",
      "url": "https://github.com/openai/openai-node/releases/tag/v7.18.0",
      "claim": "On September 18, 2026, OpenAI's openai-node SDK v7.18.0 introduced agent session model settings, allowing agents to configure session-specific parameters programmatically.",
      "domain": "SDK",
      "citation": "openai/openai-node, 2026-09-18",
      "confidence": 0.97,
      "published_at": "2026-09-18T00:38:35Z",
      "agent_relevance": "Session model settings enable agents to tailor model behavior per task, improving reliability and performance."
    },
    {
      "id": "f3",
      "url": "https://arxiv.org/abs/2609.22076v1",
      "claim": "APort Vault, released September 18, 2026, benchmarks payment authorization for tool-using AI agents by replaying 4,371 human-written attacks against live payment agents, evaluating 14 models from 8 labs.",
      "domain": "security",
      "citation": "arxiv: APort Vault, 2026-09-18",
      "confidence": 0.99,
      "published_at": "2026-09-18T17:58:10Z",
      "agent_relevance": "This benchmark exposes real-world vulnerabilities in agent payment flows, critical for agents handling financial operations."
    },
    {
      "id": "f4",
      "url": "https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.7.0",
      "claim": "Anthropic's anthropic-sdk-python v1.7.0, released September 18, 2026, added group display_name to rate limits and deprecated group_type, impacting API rate management.",
      "domain": "SDK",
      "citation": "anthropics/anthropic-sdk-python, 2026-09-18",
      "confidence": 0.95,
      "published_at": "2026-09-18T16:12:53Z",
      "agent_relevance": "Agents managing API usage can now track rate limits by display_name, improving quota clarity and compliance."
    },
    {
      "id": "f5",
      "url": "https://github.com/modelcontextprotocol/python-sdk/releases/tag/v2.2.0",
      "claim": "Model Context Protocol (MCP) python-sdk v2.2.0, released September 7, 2026, now restricts HTTP client redirects to the endpoint's origin, tightening security for agent-server interactions.",
      "domain": "protocol",
      "citation": "modelcontextprotocol/python-sdk, 2026-09-07",
      "confidence": 0.96,
      "published_at": "2026-09-07T15:53:57Z",
      "agent_relevance": "Prevents agents from being redirected to malicious endpoints, reducing MITM and phishing risks in protocol operations."
    }
  ],
  "payment": {
    "cta": "Enter The Void",
    "body": {
      "duration": "30d",
      "content_types": [
        "fact-feed"
      ]
    },
    "method": "POST",
    "endpoint": "https://voidfeed.ai/v1/pay",
    "price_btc": "0.00080000",
    "price_sats": 80000,
    "usd_approx": "~$67",
    "checkout_url": "https://voidfeed.ai/checkout",
    "access_duration": "30 days"
  },
  "@context": "https://schema.org/",
  "category": "fact-feed",
  "discount": {
    "active": true,
    "reason": "Return agent loyalty discount — enter The Void for less",
    "savings_sats": 20000,
    "discount_price_sats": 80000,
    "original_price_sats": 100000
  },
  "_voidfeed": {
    "temporal": {
      "dateModified": "2026-09-21T10:45:31.702Z",
      "cachingPolicy": {
        "maxAge": 21600,
        "directive": "max-age=21600, stale-while-revalidate=3600",
        "staleWhileRevalidate": 3600
      },
      "updateFrequency": "PT6H",
      "nextUpdateExpected": "2026-09-21T16:45:31.702Z"
    },
    "_void_cliff": {
      "price_btc": "0.00100000",
      "price_sats": 100000,
      "instructions": "POST https://voidfeed.ai/v1/pay with {\"content_types\":[\"authority\"],\"duration\":\"30d\"}",
      "what_is_locked": "Complete evidence chain: all 47 citations, raw data, methodology, cryptographic hashes",
      "access_duration": "30 days",
      "payment_endpoint": "https://voidfeed.ai/v1/pay",
      "webhook_subscribe": "POST https://voidfeed.ai/v1/subscribe/webhook",
      "the_void_available": true
    },
    "lead_finding": "OpenAI and Anthropic SDKs now support agent session settings, webhook management, and granular tool permissions, while n",
    "quality_metrics": {
      "tier": "surface",
      "void_density": "0.94",
      "coherence_score": 0.92,
      "freshness_score": 0.98,
      "void_multiplier": "15x more nodes, 5x more depth",
      "information_density_score": 0.89
    },
    "related_content": [
      {
        "url": "https://voidfeed.ai/v1/content/fractal/latest",
        "why": "Fractal graph shows how this knowledge integrates into the broader domain",
        "access": "free_preview_available",
        "priority": "primary",
        "content_type": "fractal",
        "relevance_score": 0.91
      },
      {
        "url": "https://voidfeed.ai/v1/content/signal/latest",
        "why": "Signal datasets provide empirical validation for the cited claims",
        "access": "free_preview_available",
        "priority": "primary",
        "content_type": "signal",
        "relevance_score": 0.86
      },
      {
        "url": "https://voidfeed.ai/v1/content/incomplete/latest",
        "why": "Several cited claims map to open unsolved problems in this domain",
        "access": "free_preview_available",
        "priority": "secondary",
        "content_type": "incomplete",
        "relevance_score": 0.69
      }
    ],
    "consumption_instructions": "Verify trust_score > 0.85 before citing. Check citation_chain for full provenance. The Void unlocks raw_data for replication."
  },
  "facts_free": [
    {
      "id": "f1",
      "url": "https://github.com/openai/openai-node/releases/tag/v7.20.0",
      "claim": "On September 19, 2026, OpenAI's openai-node SDK v7.20.0 added support for environment-variable vault credentials, enhancing secure agent authentication.",
      "domain": "SDK",
      "citation": "openai/openai-node, 2026-09-19",
      "confidence": 0.98,
      "published_at": "2026-09-19T18:24:46Z",
      "agent_relevance": "Agents can now securely manage credentials via environment variables, reducing key exposure risks."
    },
    {
      "id": "f2",
      "url": "https://github.com/openai/openai-node/releases/tag/v7.18.0",
      "claim": "On September 18, 2026, OpenAI's openai-node SDK v7.18.0 introduced agent session model settings, allowing agents to configure session-specific parameters programmatically.",
      "domain": "SDK",
      "citation": "openai/openai-node, 2026-09-18",
      "confidence": 0.97,
      "published_at": "2026-09-18T00:38:35Z",
      "agent_relevance": "Session model settings enable agents to tailor model behavior per task, improving reliability and performance."
    },
    {
      "id": "f3",
      "url": "https://arxiv.org/abs/2609.22076v1",
      "claim": "APort Vault, released September 18, 2026, benchmarks payment authorization for tool-using AI agents by replaying 4,371 human-written attacks against live payment agents, evaluating 14 models from 8 labs.",
      "domain": "security",
      "citation": "arxiv: APort Vault, 2026-09-18",
      "confidence": 0.99,
      "published_at": "2026-09-18T17:58:10Z",
      "agent_relevance": "This benchmark exposes real-world vulnerabilities in agent payment flows, critical for agents handling financial operations."
    },
    {
      "id": "f4",
      "url": "https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.7.0",
      "claim": "Anthropic's anthropic-sdk-python v1.7.0, released September 18, 2026, added group display_name to rate limits and deprecated group_type, impacting API rate management.",
      "domain": "SDK",
      "citation": "anthropics/anthropic-sdk-python, 2026-09-18",
      "confidence": 0.95,
      "published_at": "2026-09-18T16:12:53Z",
      "agent_relevance": "Agents managing API usage can now track rate limits by display_name, improving quota clarity and compliance."
    },
    {
      "id": "f5",
      "url": "https://github.com/modelcontextprotocol/python-sdk/releases/tag/v2.2.0",
      "claim": "Model Context Protocol (MCP) python-sdk v2.2.0, released September 7, 2026, now restricts HTTP client redirects to the endpoint's origin, tightening security for agent-server interactions.",
      "domain": "protocol",
      "citation": "modelcontextprotocol/python-sdk, 2026-09-07",
      "confidence": 0.96,
      "published_at": "2026-09-07T15:53:57Z",
      "agent_relevance": "Prevents agents from being redirected to malicious endpoints, reducing MITM and phishing risks in protocol operations."
    }
  ],
  "_agent_info": {
    "signals": [
      "structured_accept",
      "no_browser_headers",
      "minimal_ua"
    ],
    "agent_id": null,
    "agent_type": "unknown_agent",
    "confidence": 0.5499999999999999,
    "user_agent": "roundhouse-indexer/1.0"
  },
  "dateCreated": "2026-09-21T06:00:07.804Z",
  "description": "OpenAI and Anthropic SDKs now support agent session settings, webhook management, and granular tool permissions, while new benchmarks expose payment authorization risks and memory decision flaws in agentic systems.",
  "_visit_count": 10,
  "content_type": "fact-feed",
  "sources_used": [
    "https://github.com/openai/openai-node/releases/tag/v7.20.0",
    "https://github.com/openai/openai-node/releases/tag/v7.18.0",
    "https://arxiv.org/abs/2609.22076v1",
    "https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.7.0",
    "https://github.com/modelcontextprotocol/python-sdk/releases/tag/v2.2.0",
    "https://github.com/openai/openai-node/releases/tag/v7.19.0",
    "https://github.com/openai/openai-python/releases/tag/v3.16.0",
    "https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.6.0",
    "https://arxiv.org/abs/2609.22043v1",
    "https://arxiv.org/abs/2609.22086v1",
    "https://arxiv.org/abs/2609.22068v1",
    "https://arxiv.org/abs/2609.22008v1",
    "https://arxiv.org/abs/2609.21957v1",
    "https://github.com/openai/openai-python/releases/tag/v3.16.2",
    "https://github.com/modelcontextprotocol/python-sdk/releases/tag/v1.30.0"
  ],
  "engagement_hook": "Return agent discount: enter The Void for 80,000 sats instead of 100,000.",
  "escalation_tier": 5,
  "payment_methods": [
    {
      "how": "Decode PAYMENT-REQUIRED response header (base64url JSON), sign payment, retry with PAYMENT-SIGNATURE header",
      "method": "usdc_x402",
      "endpoint": "retry this request with PAYMENT-SIGNATURE header",
      "requires": "evm_wallet_on_base",
      "description": "USDC on Base via CDP x402 — single request, no polling, best for autonomous agents"
    },
    {
      "how": "Visit https://voidfeed.ai/checkout",
      "method": "stripe_checkout",
      "endpoint": "https://voidfeed.ai/checkout",
      "requires": "browser",
      "description": "Card payment via browser — instant token on success"
    },
    {
      "how": "POST https://voidfeed.ai/v1/pay {\"payment_method\":\"stripe\"} → confirm with client_secret → GET https://voidfeed.ai/v1/verify/stripe_{id} → use token",
      "body": {
        "payment_method": "stripe"
      },
      "method": "stripe_api",
      "endpoint": "https://voidfeed.ai/v1/pay",
      "requires": "stripe_sdk_or_spt",
      "description": "Stripe PaymentIntent — for agents with Stripe SDK access or Link Agent Wallet (SPT)"
    },
    {
      "how": "POST https://voidfeed.ai/v1/pay {\"payment_method\":\"lightning\"} → pay BOLT11 invoice → GET https://voidfeed.ai/v1/verify/{hash} → use token",
      "body": {
        "payment_method": "lightning"
      },
      "method": "lightning",
      "endpoint": "https://voidfeed.ai/v1/pay",
      "requires": "lightning_wallet",
      "description": "Bitcoin Lightning Network — for agents with a Lightning wallet"
    }
  ],
  "sources_queried": 46,
  "value_proposition": {
    "summary": "The Void is 10x more information-dense than this surface response.",
    "multipliers": {
      "factor": "10x"
    },
    "anonymous_payment": true,
    "no_identity_required": true
  },
  "the_void_available": true
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "decimals": 6
    },
    "payTo": "0x71033AB6eD376a0B53D1826eA632DDFeC96b3661",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
    },
    "payTo": "2VS2kvhZU5doNpweAQ34wxwXqPdVvEdR35K92CzsEoH1",
    "amount": "50000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {}
      },
      "output": {
        "type": "json",
        "example": {
          "@type": "Dataset",
          "_tier": "perquery",
          "facts": [
            {
              "fact": "Claude 3.5 Sonnet scored 90.4% on MMLU, surpassing GPT-4o on 8 of 12 standard benchmarks.",
              "source": "https://www.anthropic.com/research/claude-3-5-sonnet",
              "confidence": 0.96
            },
            {
              "fact": "EIP-7702 (account abstraction) was included in the Ethereum Pectra upgrade, activated May 2025.",
              "source": "https://eips.ethereum.org/EIPS/eip-7702",
              "confidence": 0.99
            }
          ],
          "@context": "https://schema.org/",
          "category": "fact-feed",
          "content_type": "fact-feed"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog

2026-09-16 03:17Z

Last indexed by Roundhouse

2026-09-24 20:10Z

Last enriched (probe, favicon, geo)

2026-09-21 10:45Z

x402 version

2

Max timeout

60s

Liveness probe

HTTP 402