api.bitfence.ai

Name: api.bitfence.ai
Price: 0.005 USDC
Availability: InStock

Pre-transaction risk scoring for AI agents on Solana, Base, Ethereum, Arbitrum, BSC, and HyperEVM — a score and a recommendation before the agent signs, from $0.10 per query.

OtherLiveeip155:8453Exactvia cdp

https://api.bitfence.ai/v1/risk/contextual

Settlements · 30d

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.

$2.21

Verified settled volume

79 settlements proven x402 by their on-chain EIP-3009 marker.

$0.0050

Listed price

As published in the catalog. Always read the live 402 before paying.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-06-20 04:07Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0x7F6fA471726C35321b58704bd2a440D405767bfD

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

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

{
  "error": "X-PAYMENT header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2",
        "resourceUrl": "https://api.bitfence.ai/v1/risk/contextual",
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0x7F6fA471726C35321b58704bd2a440D405767bfD",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://api.bitfence.ai/v1/risk/contextual",
      "description": "bitfence contextual (position-aware) token risk assessment",
      "maxAmountRequired": "200000",
      "maxTimeoutSeconds": 300
    }
  ],
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "chain": "solana",
            "token": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
            "position_size_usd": 5000,
            "agent_portfolio_usd": 25000
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json",
          "bodyFields": {
            "chain": {
              "type": "string",
              "required": true,
              "description": "Blockchain to query (solana, base, ethereum, arbitrum, bsc, or hyperevm)"
            },
            "token": {
              "type": "string",
              "required": true,
              "description": "Token mint/contract address"
            },
            "position_size_usd": {
              "type": "number",
              "required": true,
              "description": "Planned position size in USD"
            },
            "agent_portfolio_usd": {
              "type": "number",
              "required": true,
              "description": "Total agent portfolio value in USD"
            }
          },
          "discoverable": true
        },
        "output": {
          "type": "json",
          "example": {
            "context": {
              "mev_exposure": "medium",
              "max_safe_position_usd": 2040,
              "estimated_slippage_pct": 4.8,
              "portfolio_concentration_pct": 20
            },
            "risk_level": "HIGH",
            "risk_score": 72,
            "recommendation": "BLOCK"
          }
        }
      },
      "name": "Bitfence Contextual Risk Assessment",
      "tags": [
        "risk",
        "defi",
        "token-safety",
        "ai-agents",
        "position-sizing",
        "slippage",
        "mev",
        "trading"
      ],
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "method"
            ],
            "properties": {
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              }
            }
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "required": [
                  "risk_score",
                  "risk_level",
                  "recommendation"
                ],
                "properties": {
                  "risk_level": {
                    "type": "string"
                  },
                  "risk_score": {
                    "type": "number"
                  },
                  "recommendation": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "category": "security",
      "description": "Position-aware pre-transaction risk analysis for autonomous AI agents. Returns the full token risk assessment plus position context: estimated slippage, effective cost after slippage, maximum safe position size, portfolio concentration percentage, and MEV exposure rating. Use this when you know the intended trade size. $0.20 per query.",
      "discoverable": true
    }
  },
  "x402Version": 1
}

Accepts

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

0.005USDC≈ $0.005 USD

on Base · exact scheme

Pay 0.005 USDC on Base to 0x7F6f…67bfD. The signed payment is good for 5 minutes.

Paid to: 0x7F6f…67bfD
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 5000 smallest units

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "resourceUrl": "https://api.bitfence.ai/v1/risk/contextual",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0x7F6fA471726C35321b58704bd2a440D405767bfD",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "chain": "solana",
          "token": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
          "position_size_usd": 5000,
          "agent_portfolio_usd": 25000
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json",
        "bodyFields": {
          "chain": {
            "type": "string",
            "required": true,
            "description": "Blockchain to query (solana or base)"
          },
          "token": {
            "type": "string",
            "required": true,
            "description": "Token mint/contract address"
          },
          "position_size_usd": {
            "type": "number",
            "required": true,
            "description": "Planned position size in USD"
          },
          "agent_portfolio_usd": {
            "type": "number",
            "required": true,
            "description": "Total agent portfolio value in USD"
          }
        },
        "discoverable": true
      },
      "output": {
        "type": "json",
        "example": {
          "risk_level": "high",
          "risk_score": 72,
          "position_risk": {
            "concentration_pct": 20,
            "max_recommended_pct": 5
          },
          "recommendation": "BLOCK"
        }
      }
    },
    "name": "Bitfence Contextual Risk Assessment",
    "tags": [
      "risk",
      "defi",
      "token-safety",
      "ai-agents",
      "position-sizing",
      "slippage",
      "mev",
      "trading"
    ],
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "method"
          ],
          "properties": {
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            }
          }
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "risk_score",
                "risk_level",
                "recommendation"
              ],
              "properties": {
                "risk_level": {
                  "type": "string"
                },
                "risk_score": {
                  "type": "number"
                },
                "recommendation": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "category": "security",
    "description": "Position-aware pre-trade/transaction risk analysis for autonomous AI agents. Returns the full token risk assessment plus position context: estimated slippage, effective cost after slippage, maximum safe position size, portfolio concentration percentage, and MEV exposure rating. Use this when you know the intended trade size. $0.005 per query.",
    "discoverable": true
  }
}

Provenance

Seen in the source catalog: 2026-06-20 04:07Z
Last indexed by Roundhouse: 2026-07-17 12:00Z
Last enriched (probe, favicon, geo): 2026-09-22 17:15Z
x402 version: 2
Max timeout: 300s
Liveness probe: HTTP 402

Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md

Show the prompt

Using Roundhouse, look up the x402 service api.bitfence.ai and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=api.bitfence.ai'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://api.bitfence.ai/v1/risk/contextual, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.