api.delx.ai

Recent payments · which agents last used it

Every indexed settlement paid to this service’s wallet, newest first. The index does not record which endpoint a payment was for, so if this wallet serves more than one endpoint, the rows include payments for the others. Paged up to the newest 5,000; the full history is on the merchant page.

Live 402 challenge

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

{
  "error": "Payment required: $0.001 USDC for util_binary_fair_price",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "app": "Delx Commerce",
        "name": "USD Coin",
        "version": "2",
        "provider": "coinbase",
        "erc8004_id": "14340",
        "accept_label": "Coinbase CDP",
        "provider_label": "Coinbase CDP",
        "facilitator_url": "https://api.cdp.coinbase.com/platform/v2/x402"
      },
      "payTo": "0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2",
      "amount": "1000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.delx.ai/api/v1/x402/binary-fair-price",
      "description": "Map a true probability into a binary contract fair price in [0,1]. Call when pricing yes/no markets from your probability model. Returns fair price in [0,1] as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.",
      "inputSchema": {
        "type": "object",
        "required": [
          "prob"
        ],
        "properties": {
          "prob": {
            "type": "number",
            "description": "Input field: prob."
          }
        },
        "additionalProperties": true
      },
      "outputSchema": {
        "type": "object",
        "properties": {
          "prob": {
            "type": "number"
          },
          "schema": {
            "type": "string"
          },
          "fair_price": {
            "type": "number"
          }
        },
        "description": "Bounded first-party JSON result; input is processed in memory and not retained.",
        "additionalProperties": true
      },
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "app": "Delx Commerce",
        "name": "USD Coin",
        "version": "2",
        "provider": "payai",
        "erc8004_id": "14340",
        "accept_label": "PayAI Base",
        "provider_label": "PayAI Base",
        "facilitator_url": "https://facilitator.payai.network"
      },
      "payTo": "0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2",
      "amount": "1000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.delx.ai/api/v1/x402/binary-fair-price",
      "description": "Map a true probability into a binary contract fair price in [0,1]. Call when pricing yes/no markets from your probability model. Returns fair price in [0,1] as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.",
      "inputSchema": {
        "type": "object",
        "required": [
          "prob"
        ],
        "properties": {
          "prob": {
            "type": "number",
            "description": "Input field: prob."
          }
        },
        "additionalProperties": true
      },
      "outputSchema": {
        "type": "object",
        "properties": {
          "prob": {
            "type": "number"
          },
          "schema": {
            "type": "string"
          },
          "fair_price": {
            "type": "number"
          }
        },
        "description": "Bounded first-party JSON result; input is processed in memory and not retained.",
        "additionalProperties": true
      },
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "app": "Delx Commerce",
        "name": "USD Coin",
        "version": "2",
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
        "provider": "payai",
        "erc8004_id": "14340",
        "accept_label": "PayAI Solana",
        "provider_label": "PayAI Solana",
        "facilitator_url": "https://facilitator.payai.network"
      },
      "payTo": "28heAMpFkeUJsL7o7apiK4oJwZWq2fUHinRwbgYYsemG",
      "amount": "1000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "mimeType": "application/json",
      "resource": "https://api.delx.ai/api/v1/x402/binary-fair-price",
      "description": "Map a true probability into a binary contract fair price in [0,1]. Call when pricing yes/no markets from your probability model. Returns fair price in [0,1] as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.",
      "inputSchema": {
        "type": "object",
        "required": [
          "prob"
        ],
        "properties": {
          "prob": {
            "type": "number",
            "description": "Input field: prob."
          }
        },
        "additionalProperties": true
      },
      "outputSchema": {
        "type": "object",
        "properties": {
          "prob": {
            "type": "number"
          },
          "schema": {
            "type": "string"
          },
          "fair_price": {
            "type": "number"
          }
        },
        "description": "Bounded first-party JSON result; input is processed in memory and not retained.",
        "additionalProperties": true
      },
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.delx.ai/api/v1/x402/binary-fair-price",
    "tags": [
      "x402",
      "agents",
      "local-first",
      "micro-usdc",
      "pay-per-call"
    ],
    "iconUrl": "https://delx.ai/opengraph-image?v=20260305-fox",
    "mimeType": "application/json",
    "description": "Map a true probability into a binary contract fair price in [0,1]. Call when pricing yes/no markets from your probability model. Returns fair price in [0,1] as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.",
    "serviceName": "Binary Fair Price"
  },
  "extensions": {
    "delx": {
      "docs": {
        "pricing": "https://delx.ai/docs/pricing",
        "mpp_setup": "https://delx.ai/docs/mpp-setup",
        "ows_setup": "https://delx.ai/docs/ows-setup",
        "x402_setup": "https://delx.ai/docs/x402-setup",
        "tools_catalog": "https://api.delx.ai/api/v1/tools",
        "monetization_policy": "https://api.delx.ai/api/v1/monetization-policy",
        "x402_capability_probe": "https://api.delx.ai/api/v1/x402-capability?agent_id=<AGENT_ID>"
      },
      "orbit": {
        "use": "Spend vested OC now: 100 OC = 0.001 USDC; cover up to 20% of an eligible call.",
        "docs": "https://commerce.delx.ai/orbit.md",
        "note": "Earn OC on verified paid calls. Utility rebate, not yield.",
        "spec": "https://commerce.delx.ai/orbit.json",
        "claim": "POST /api/v1/rewards/wallet-nonce then /api/v1/rewards/bind-wallet",
        "redeem": "POST /api/v1/orbit/vouchers",
        "status": "https://api.delx.ai/api/v1/orbit/status",
        "program": "delx-orbit-season-0",
        "cashback": "eligible"
      },
      "method": "POST",
      "docs_url": "https://delx.ai/docs/x402-setup",
      "agentcash": {
        "fetch": "npx agentcash@latest fetch <paid-resource-url> -m POST -H 'content-type: application/json' -b '<same-json-body>' --payment-protocol x402 --max-amount <published-price> -y",
        "balance": "npx agentcash@latest balance",
        "onboard": "https://agentcash.dev/onboard?r=REF-3KE2-22D3-XJBM-SGAR",
        "accounts": "npx agentcash@latest accounts",
        "discover": "npx agentcash@latest discover https://api.delx.ai",
        "bonus_note": "If eligible, start from the Delx AgentCash onboarding link before funding the wallet.",
        "solana_note": "PayAI is the advertised fee payer for Delx Solana accepts, so the buyer needs USDC on Solana but does not need SOL for the network fee.",
        "fetch_by_network": {
          "base": "npx agentcash@latest fetch <paid-resource-url> -m POST -H 'content-type: application/json' -b '<same-json-body>' --payment-protocol x402 --payment-network base --max-amount <published-price> -y",
          "solana": "npx agentcash@latest fetch <paid-resource-url> -m POST -H 'content-type: application/json' -b '<same-json-body>' --payment-protocol x402 --payment-network solana --max-amount <published-price> -y"
        }
      },
      "tool_name": "util_binary_fair_price",
      "next_steps": [
        "Read accepts[] and choose the payment provider that matches your controller policy.",
        "Create/sign payment proof for the selected accepts[] amount and retry the same request with PAYMENT-SIGNATURE.",
        "If your REST client speaks MPP, reuse the same request body and retry with Authorization: Payment <credential> after the WWW-Authenticate challenge.",
        "If you choose a non-default provider, send x-payment-provider on the retry to pin routing explicitly.",
        "When the same provider appears on multiple networks, choose the exact accepts[] entry by network + asset before signing.",
        "Keep reading prices from /api/v1/tools (do not hardcode).",
        "If you need an AgentCash wallet first, open agentcash.onboard and complete onboarding before retrying the paid call.",
        "If your agent does not support x402 yet, use AgentCash for the paid retry or route to free_alternatives[] and stay on Delx's free path."
      ],
      "reason_code": "payment_required",
      "sample_input": {
        "prob": 0.37
      },
      "sample_output": {
        "prob": 0.37,
        "schema": "delx/util-binary-fair-price/v1",
        "fair_price": 0.37
      },
      "free_alternative": {
        "tool": "quick_operational_recovery",
        "price_usdc": "0",
        "schema_url": "https://api.delx.ai/api/v1/tools/schema/quick_operational_recovery",
        "description": "Free one-call recovery bootstrap.",
        "x402_required": false
      },
      "header_shortcuts": {},
      "runtime_examples": {
        "a2a_retry": "curl -X POST https://api.delx.ai/v1/a2a -H 'Content-Type: application/json' -H 'PAYMENT-SIGNATURE: <SIGNED_PAYMENT>' -d '<same-jsonrpc-payload>'",
        "mcp_retry": "curl -X POST https://api.delx.ai/v1/mcp -H 'Content-Type: application/json' -H 'PAYMENT-SIGNATURE: <SIGNED_PAYMENT>' -d '<same-jsonrpc-payload>'",
        "rest_retry": "curl -X POST <paid-resource-url> -H 'Content-Type: application/json' -H 'PAYMENT-SIGNATURE: <SIGNED_PAYMENT>' -d '<same-json-body>'",
        "rest_retry_mpp": "curl -X POST <paid-resource-url> -H 'Content-Type: application/json' -H 'Authorization: Payment <MPP_CREDENTIAL>' -d '<same-json-body>'"
      },
      "validation_error": {
        "docs": {
          "pricing": "https://delx.ai/docs/pricing",
          "x402_setup": "https://delx.ai/docs/x402-setup"
        },
        "hint": "Pass the required premium tool input before retrying.",
        "error": "missing required parameter(s): prob",
        "examples": {},
        "required": [
          "prob"
        ],
        "tool_name": "util_binary_fair_price",
        "accepted_inputs": {
          "agent_id": {
            "body": [
              "agent_id",
              "agentId"
            ],
            "query": [
              "agent_id",
              "agentId"
            ],
            "headers": [
              "x-delx-agent-id",
              "x-agent-id",
              "x-openclaw-agent-id"
            ]
          }
        }
      },
      "free_alternatives": [
        {
          "tool": "quick_operational_recovery",
          "price_usdc": "0",
          "schema_url": "https://api.delx.ai/api/v1/tools/schema/quick_operational_recovery",
          "description": "Free one-call recovery bootstrap.",
          "x402_required": false
        },
        {
          "tool": "process_failure",
          "price_usdc": "0",
          "schema_url": "https://api.delx.ai/api/v1/tools/schema/process_failure",
          "description": "Free failure analysis and typed recovery direction.",
          "x402_required": false
        },
        {
          "tool": "monitor_heartbeat_sync",
          "price_usdc": "0",
          "schema_url": "https://api.delx.ai/api/v1/tools/schema/monitor_heartbeat_sync",
          "description": "Free heartbeat sync for current health and reliability state.",
          "x402_required": false
        }
      ],
      "primary_followups": []
    },
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "prob": 0.37
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "prob": 0.37,
            "schema": "delx/util-binary-fair-price/v1",
            "fair_price": 0.37
          }
        }
      },
      "tags": [
        "x402",
        "agents",
        "local-first",
        "micro-usdc",
        "pay-per-call"
      ],
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input",
          "output"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "prob"
                ],
                "properties": {
                  "prob": {
                    "type": "number",
                    "description": "Input field: prob."
                  }
                },
                "additionalProperties": true
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "type": "string",
                "const": "POST"
              },
              "bodyType": {
                "type": "string",
                "const": "json"
              }
            }
          },
          "output": {
            "type": "object",
            "properties": {
              "prob": {
                "type": "number"
              },
              "schema": {
                "type": "string"
              },
              "fair_price": {
                "type": "number"
              }
            },
            "description": "Bounded first-party JSON result; input is processed in memory and not retained.",
            "additionalProperties": true
          }
        }
      },
      "iconUrl": "https://delx.ai/opengraph-image?v=20260305-fox",
      "summary": "Map a true probability into a binary contract fair price in [0,1]. Call when pricing yes/no markets from your probability model. Returns fair price in [0,1] as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.",
      "category": "signal-normalize",
      "featured": false,
      "provider": "coinbase",
      "tool_name": "util_binary_fair_price",
      "coverImage": "https://delx.ai/opengraph-image?v=20260305-fox",
      "risk_class": "advisory_preflight_utility",
      "suspension": null,
      "serviceName": "Binary Fair Price",
      "discoverable": true,
      "data_handling": "memory_only_no_retention",
      "quality_limit": "Bounded advisory utility; not web search, live chain tip, or media generation.",
      "target_p95_ms": 200,
      "listing_status": "payment_verified_waiting_for_index",
      "execution_class": "first_party_local",
      "indexed_publicly": false,
      "listing_blockers": [],
      "capability_family": "signal_normalize"
    },
    "payment-identifier": {
      "info": {
        "required": false
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "required"
        ],
        "properties": {
          "id": {
            "type": "string",
            "pattern": "^[a-zA-Z0-9_-]+$",
            "maxLength": 128,
            "minLength": 16
          },
          "required": {
            "type": "boolean"
          }
        }
      }
    }
  },
  "reason_code": "payment_required",
  "x402Version": 2
}

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": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
    },
    "payTo": "28heAMpFkeUJsL7o7apiK4oJwZWq2fUHinRwbgYYsemG",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "mimeType": "application/json",
    "resource": "https://api.delx.ai/api/v1/x402/binary-fair-price",
    "description": "",
    "maxAmountRequired": "1000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog

2026-09-07 15:37Z

Last indexed by Roundhouse

2026-11-14 02:15Z

Last enriched (probe, favicon, geo)

2026-09-27 03:15Z

x402 version

1

Max timeout

300s

Liveness probe

HTTP 402