tensorfeed.ai

Side-by-side comparison of 2-5 AI models. Returns pricing, benchmarks normalized to union-of-keys with explicit nulls, live provider status, recent news mentions, and per-benchmark rankings in one ready-to-rank payload.

InferenceLiveeip155:8453Exactvia cdp
Settlements · 30d
43↑ 71%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$10.20
Verified settled volume
389 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
Listed price
As published in the catalog. Always read the live 402 before paying.
4
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-07-14 01:20Z
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x549c82e6bfc54bdae9a2073744cbc2af5d1fc6d1

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.

{
  "ok": false,
  "error": "payment_required",
  "faucet": {
    "how": "No payment, no USDC, no gas. Sign an EIP-191 message proving you control a wallet, POST { message, signature }, and receive a bearer token preloaded with 25 trial credits. One grant per wallet. Use it to evaluate any premium endpoint, then top up the same token via /api/payment/buy-credits.",
    "cost": "free",
    "method": "POST",
    "credits": 25,
    "endpoint": "/api/payment/trial-credits"
  },
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2",
        "resource": "https://tensorfeed.ai/api/premium/compare/models"
      },
      "payTo": "0x549c82e6bfc54bdae9a2073744cbc2af5d1fc6d1",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "resource": "https://tensorfeed.ai/api/premium/compare/models",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "ids": "opus-4-7,gpt-5-5,gemini-3"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "models": [
              {
                "id": "opus-4-7",
                "name": "Claude Opus 4.7",
                "status": "operational",
                "pricing": {
                  "input": 15,
                  "output": 75,
                  "blended": 25
                },
                "provider": "anthropic",
                "benchmarks": {
                  "math": null,
                  "mmlu_pro": 0.83,
                  "swe_bench": 0.74,
                  "human_eval": 0.94,
                  "gpqa_diamond": 0.68
                },
                "context_window": 200000,
                "news_count_30d": 12
              }
            ],
            "billing": {
              "credits_charged": 1,
              "credits_remaining": 49
            },
            "rankings": {
              "per_benchmark": {
                "swe_bench": [
                  "opus-4-7",
                  "gpt-5-5",
                  "gemini-3"
                ]
              },
              "widest_context": [
                "gemini-3",
                "opus-4-7",
                "gpt-5-5"
              ],
              "cheapest_blended": [
                "gpt-5-5",
                "gemini-3",
                "opus-4-7"
              ]
            }
          }
        }
      },
      "maxTimeoutSeconds": 60
    }
  ],
  "message": "This endpoint is strict-premium and does not offer the per-IP free trial. Sign an EIP-3009 transferWithAuthorization via X-PAYMENT or use the credits flow. Free siblings exist for discovery (pricing_series_free, benchmark_series_free, status_uptime_free, status_leaderboard_free, each 7-day-capped).",
  "payment": {
    "tier": 1,
    "wallet": "0x549c82e6bfc54bdae9a2073744cbc2af5d1fc6d1",
    "network": "base",
    "contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "currency": "USDC",
    "credits_per_usd": 50,
    "credits_required": 1,
    "minimum_amount_usd": 1
  },
  "resource": {
    "url": "https://tensorfeed.ai/api/premium/compare/models",
    "mimeType": "application/json",
    "description": "Side-by-side comparison of 2-5 AI models. Returns pricing, benchmarks normalized to union-of-keys with explicit nulls, live provider status, recent news mentions, and per-benchmark rankings in one ready-to-rank payload."
  },
  "endpoints": {
    "info": "/api/payment/info",
    "quote": "/api/payment/buy-credits",
    "balance": "/api/payment/balance",
    "confirm": "/api/payment/confirm"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryFields": {
            "ids": {
              "type": "string",
              "example": "opus-4-7,gpt-5-5,gemini-3"
            }
          },
          "queryParams": {
            "ids": "opus-4-7,gpt-5-5,gemini-3"
          }
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "models": {
                "type": "array",
                "items": {
                  "type": "object",
                  "properties": {
                    "id": {
                      "type": "string",
                      "example": "opus-4-7"
                    },
                    "name": {
                      "type": "string",
                      "example": "Claude Opus 4.7"
                    },
                    "status": {
                      "type": "string",
                      "example": "operational"
                    },
                    "pricing": {
                      "type": "object",
                      "properties": {
                        "input": {
                          "type": "integer",
                          "example": 15
                        },
                        "output": {
                          "type": "integer",
                          "example": 75
                        },
                        "blended": {
                          "type": "integer",
                          "example": 25
                        }
                      }
                    },
                    "provider": {
                      "type": "string",
                      "example": "anthropic"
                    },
                    "benchmarks": {
                      "type": "object",
                      "properties": {
                        "math": {
                          "type": "null"
                        },
                        "mmlu_pro": {
                          "type": "number",
                          "example": 0.83
                        },
                        "swe_bench": {
                          "type": "number",
                          "example": 0.74
                        },
                        "human_eval": {
                          "type": "number",
                          "example": 0.94
                        },
                        "gpqa_diamond": {
                          "type": "number",
                          "example": 0.68
                        }
                      }
                    },
                    "context_window": {
                      "type": "integer",
                      "example": 200000
                    },
                    "news_count_30d": {
                      "type": "integer",
                      "example": 12
                    }
                  }
                }
              },
              "billing": {
                "type": "object",
                "properties": {
                  "credits_charged": {
                    "type": "integer",
                    "example": 1
                  },
                  "credits_remaining": {
                    "type": "integer",
                    "example": 49
                  }
                }
              },
              "rankings": {
                "type": "object",
                "properties": {
                  "per_benchmark": {
                    "type": "object",
                    "properties": {
                      "swe_bench": {
                        "type": "array",
                        "items": {
                          "type": "string",
                          "example": "opus-4-7"
                        }
                      }
                    }
                  },
                  "widest_context": {
                    "type": "array",
                    "items": {
                      "type": "string",
                      "example": "gemini-3"
                    }
                  },
                  "cheapest_blended": {
                    "type": "array",
                    "items": {
                      "type": "string",
                      "example": "gpt-5-5"
                    }
                  }
                }
              }
            }
          },
          "example": {
            "ok": true,
            "models": [
              {
                "id": "opus-4-7",
                "name": "Claude Opus 4.7",
                "status": "operational",
                "pricing": {
                  "input": 15,
                  "output": 75,
                  "blended": 25
                },
                "provider": "anthropic",
                "benchmarks": {
                  "math": null,
                  "mmlu_pro": 0.83,
                  "swe_bench": 0.74,
                  "human_eval": 0.94,
                  "gpqa_diamond": 0.68
                },
                "context_window": 200000,
                "news_count_30d": 12
              }
            ],
            "billing": {
              "credits_charged": 1,
              "credits_remaining": 49
            },
            "rankings": {
              "per_benchmark": {
                "swe_bench": [
                  "opus-4-7",
                  "gpt-5-5",
                  "gemini-3"
                ]
              },
              "widest_context": [
                "gemini-3",
                "opus-4-7",
                "gpt-5-5"
              ],
              "cheapest_blended": [
                "gpt-5-5",
                "gemini-3",
                "opus-4-7"
              ]
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "ids"
                ],
                "properties": {
                  "ids": {
                    "type": "string",
                    "description": "Comma-separated list of 2 to 5 model ids or display names (e.g. \"opus-4-7,gpt-5-5,gemini-3\")."
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "free_trial": null,
  "x402Version": 2,
  "flow_options": {
    "x402_v2": "Sign an EIP-3009 transferWithAuthorization for the exact `amount` above against USDC on Base mainnet, base64-encode the PaymentPayload, retry with X-PAYMENT header. AgentCore Payments and @coinbase/x402 do this automatically.",
    "recommended": "Buy credits once via /api/payment/buy-credits, get a bearer token, use Authorization: Bearer <token> for all future calls (50ms latency).",
    "x402_legacy": "Pre-broadcast USDC on Base, retry this request with X-Payment-Tx + X-Payment-Quote headers. TensorFeed-specific fallback; agents on AgentCore Payments use X-PAYMENT instead."
  }
}

Accepts

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

0.02USDC≈ $0.02 USD
on Base · exact scheme

Pay 0.02 USDC on Base to 0x549c…fc6d1. The signed payment is good for 1 minute.

USD Coin contract
0x8335…02913
Payment window
1 minute
As published
20000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "resource": "https://tensorfeed.ai/api/premium/compare/models"
    },
    "payTo": "0x549c82e6bfc54bdae9a2073744cbc2af5d1fc6d1",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "resource": "https://tensorfeed.ai/api/premium/compare/models",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryFields": {
          "ids": {
            "type": "string",
            "example": "opus-4-7,gpt-5-5,gemini-3"
          }
        },
        "queryParams": {
          "ids": "opus-4-7,gpt-5-5,gemini-3"
        }
      },
      "output": {
        "type": "json",
        "schema": {
          "type": "object",
          "properties": {
            "ok": {
              "type": "boolean"
            },
            "models": {
              "type": "array",
              "items": {
                "type": "object",
                "properties": {
                  "id": {
                    "type": "string",
                    "example": "opus-4-7"
                  },
                  "name": {
                    "type": "string",
                    "example": "Claude Opus 4.7"
                  },
                  "status": {
                    "type": "string",
                    "example": "operational"
                  },
                  "pricing": {
                    "type": "object",
                    "properties": {
                      "input": {
                        "type": "integer",
                        "example": 15
                      },
                      "output": {
                        "type": "integer",
                        "example": 75
                      },
                      "blended": {
                        "type": "integer",
                        "example": 25
                      }
                    }
                  },
                  "provider": {
                    "type": "string",
                    "example": "anthropic"
                  },
                  "benchmarks": {
                    "type": "object",
                    "properties": {
                      "math": {
                        "type": "null"
                      },
                      "mmlu_pro": {
                        "type": "number",
                        "example": 0.83
                      },
                      "swe_bench": {
                        "type": "number",
                        "example": 0.74
                      },
                      "human_eval": {
                        "type": "number",
                        "example": 0.94
                      },
                      "gpqa_diamond": {
                        "type": "number",
                        "example": 0.68
                      }
                    }
                  },
                  "context_window": {
                    "type": "integer",
                    "example": 200000
                  },
                  "news_count_30d": {
                    "type": "integer",
                    "example": 12
                  }
                }
              }
            },
            "billing": {
              "type": "object",
              "properties": {
                "credits_charged": {
                  "type": "integer",
                  "example": 1
                },
                "credits_remaining": {
                  "type": "integer",
                  "example": 49
                }
              }
            },
            "rankings": {
              "type": "object",
              "properties": {
                "per_benchmark": {
                  "type": "object",
                  "properties": {
                    "swe_bench": {
                      "type": "array",
                      "items": {
                        "type": "string",
                        "example": "opus-4-7"
                      }
                    }
                  }
                },
                "widest_context": {
                  "type": "array",
                  "items": {
                    "type": "string",
                    "example": "gemini-3"
                  }
                },
                "cheapest_blended": {
                  "type": "array",
                  "items": {
                    "type": "string",
                    "example": "gpt-5-5"
                  }
                }
              }
            }
          }
        },
        "example": {
          "ok": true,
          "models": [
            {
              "id": "opus-4-7",
              "name": "Claude Opus 4.7",
              "status": "operational",
              "pricing": {
                "input": 15,
                "output": 75,
                "blended": 25
              },
              "provider": "anthropic",
              "benchmarks": {
                "math": null,
                "mmlu_pro": 0.83,
                "swe_bench": 0.74,
                "human_eval": 0.94,
                "gpqa_diamond": 0.68
              },
              "context_window": 200000,
              "news_count_30d": 12
            }
          ],
          "billing": {
            "credits_charged": 1,
            "credits_remaining": 49
          },
          "rankings": {
            "per_benchmark": {
              "swe_bench": [
                "opus-4-7",
                "gpt-5-5",
                "gemini-3"
              ]
            },
            "widest_context": [
              "gemini-3",
              "opus-4-7",
              "gpt-5-5"
            ],
            "cheapest_blended": [
              "gpt-5-5",
              "gemini-3",
              "opus-4-7"
            ]
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "ids"
              ],
              "properties": {
                "ids": {
                  "type": "string",
                  "description": "Comma-separated list of 2 to 5 model ids or display names (e.g. \"opus-4-7,gpt-5-5,gemini-3\")."
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-05-25 23:11Z
Last indexed by Roundhouse
2026-07-16 20:50Z
Last enriched (probe, favicon, geo)
2026-09-22 18:15Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 400
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 tensorfeed.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=tensorfeed.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://tensorfeed.ai/api/premium/compare/models, 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.