MCP Tool · x402 · early usage

Use when an agent must decide what to list or price on x402: today's Bazaar listings, n…

Use when an agent must decide what to list or price on x402: today's Bazaar listings, new sellers, payer gains and gaps. Get today's x402 Bazaar market pulse: listings, new sellers, payer gains, median price per category and demand gaps (agentscan, Tanod).

by tanod.dev · discovered, not yet claimed by its owner · updated 2026-10-12

30d calls2

30d payers2

MethodPOST

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

Tags: agentscan · x402 · pulse · mcp · agent-economy · bazaar · builder-code

Call contract

Method: POST
Input: json
Output: json
Last paid call: 2026-10-12

Input example from Bazaar metadata

{}

Output example

{
  "categories": [
    {
      "category": "onchain-read",
      "listings": 3904,
      "max_price_usd": 1000,
      "median_price_usd": 0.005,
      "min_price_usd": 0.00001,
      "payers_30d": 22933,
      "sellers": 745,
      "title": "Onchain reads (wallets, tokens, NFTs, gas)",
      "top_endpoints": []
    },
    {
      "category": "crypto-market-data",
      "listings": 2990,
      "max_price_usd": 99,
      "median_price_usd": 0.008,
      "min_price_usd": 0.00001,
      "payers_30d": 10181,
      "sellers": 573,
      "title": "Crypto prices and market data",
      "top_endpoints": []
    }
  ],
  "first_snapshot_date": "2026-10-07",
  "gap_rule": "Categories with at least 100 unique payers in total, ranked by payers per seller (the most demand for the fewest sellers first); 5 shown.",
  "gaps": [
    {
      "category": "onchain-read",
      "listings": 3904,
      "median_price_usd": 0.005,
      "payers_30d": 22933,
      "payers_per_seller": 30.8,
      "sellers": 745,
      "title": "Onchain reads (wallets, tokens, NFTs, gas)"
    },
    {
      "category": "trading-signals",
      "listings": 1762,
      "median_price_usd": 0.01,
      "payers_30d": 9362,
      "payers_per_seller": 21.7,
      "sellers": 432,
      "title": "Trading signals and alpha"
    }
  ],
  "generated_from": "precomputed once per snapshot",
  "not_included": {
    "facilitators": "Not included: the Bazaar snapshots carry no facilitator field, and no facilitator health log is kept, so which facilitators settle the most and whether they answered a health check cannot be stated."
  },
  "note": "Built from Tanod's daily snapshots of the CDP x402 Bazaar. Payers are the Bazaar's 30-day unique payers and include self-purchases and test wallets, so small counts can be noise. Categories are keyword matches over listing name, URL and description, not hand-checked. A seller is a host. Listing-farm hosts and Tanod's own listings count in the totals but not in category statistics or rankings. Gaps are categories with paying demand and few sellers: a lead, not proof of unmet demand.",
  "payer_gains": {
    "note": "Payer counts are kept by the pulse from its first built snapshot; 1 payer snapshot(s) exist, and gains need two.",
    "since_previous_snapshot": null,
    "since_week_ago": null
  },
  "payer_snapshots": 1,
  "ranking_filter": "top_endpoints_by_payers and each category's top_endpoints leave out sweep traffic: routes with at most 1.5 calls per payer and (hosts with 3+ routes) routes under 3x the median 30-day calls of their host. Payer totals are unfiltered; counts excluded are in ranking_excluded.",
  "since_previous_snapshot": {
    "baseline_date": "2026-10-09",
    "churn_pct": 11.4,
    "gone_listings": 2112,
    "gone_sellers": 20,
    "new_listings": 1767,
    "new_sellers": 46,
    "price_changes": 48
  },
  "since_week_ago": null,
  "snapshot_age_hours": 23.1,
  "snapshot_date": "2026-10-10",
  "snapshot_taken_at": "2026-10-10T04:35:14Z",
  "snapshots_available": 4,
  "source": "CDP x402 Bazaar",
  "top_endpoints_by_payers": [
    {
      "category": "trading-signals",
      "name": "Send a Base token contract address, get ",
      "payers_30d": 4692,
      "price_usd": 0.02,
      "url": "https://www.ax1.vc/api/dashboard/q-verdict/resource"
    }
  ],
  "totals": {
    "listing_farm_hosts": 19,
    "listing_farm_listings": 14197,
    "listings": 33717,
    "listings_with_payers": 33557,
    "priced_listings": 33544,
    "sellers": 2184,
    "unique_payers_30d_sum": 89133
  },
  "week_figures": "7-day figures start once 7 snapshots exist in the last 8 days; 4 do."
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/35816.json for the price and payment options.
Pay. Call GET https://tanod.dev/v1/x402/pulse. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, Polygon, Solana, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.002 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base, Polygon, Solana
Demand: 2 calls · 2 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.002	0x593857A4a4F619543ea12394137C3004ce841720	300s
exact	Polygon eip155:137	USDC	$0.002	0x593857A4a4F619543ea12394137C3004ce841720	300s
exact	Solana solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp	USDC	$0.002	RMk9k3VC8dr4hhjgFh88rGhjAbzfBzHxJJ5n2fTcqus	300s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "amountUsd": 0.002,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "2000",
    "amountUsd": 0.002,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "RMk9k3VC8dr4hhjgFh88rGhjAbzfBzHxJJ5n2fTcqus",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "2000",
    "amountUsd": 0.002,
    "maxTimeoutSeconds": 300
  }
]

Schemas

Output schema (JSON Schema)

{
  "properties": {
    "example": {
      "properties": {
        "categories": {
          "items": {
            "properties": {
              "category": {
                "type": "string"
              },
              "listings": {
                "type": "integer"
              },
              "max_price_usd": {
                "type": [
                  "number",
                  "null"
                ]
              },
              "median_price_usd": {
                "type": [
                  "number",
                  "null"
                ]
              },
              "min_price_usd": {
                "type": [
                  "number",
                  "null"
                ]
              },
              "payers_30d": {
                "type": "integer"
              },
              "sellers": {
                "type": "integer"
              },
              "title": {
                "type": "string"
              },
              "top_endpoints": {
                "items": {
                  "properties": {
                    "category": {
                      "type": "string"
                    },
                    "name": {
                      "type": "string"
                    },
                    "payers_30d": {
                      "type": "integer"
                    },
                    "payers_gained": {
                      "type": "integer"
                    },
                    "price_usd": {
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "url": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": "array"
              },
              "top_endpoints_excluded": {
                "type": "integer"
              }
            },
            "type": "object"
          },
          "type": "array"
        },
        "category_filter": {
          "type": "string"
        },
        "category_note": {
          "type": "string"
        },
        "first_snapshot_date": {
          "type": "string"
        },
        "gap_rule": {
          "type": "string"
        },
        "gaps": {
          "items": {
            "properties": {
              "category": {
                "type": "string"
              },
              "listings": {
                "type": "integer"
              },
              "median_price_usd": {
                "type": [
                  "number",
                  "null"
                ]
              },
              "payers_30d": {
                "type": "integer"
              },
              "payers_per_seller": {
                "type": "number"
              },
              "sellers": {
                "type": "integer"
              },
              "title": {
                "type": "string"
              }
            },
            "type": "object"
          },
          "type": "array"
        },
        "generated_from": {
          "type": "string"
        },
        "not_included": {
          "type": "object"
        },
        "note": {
          "type": "string"
        },
        "payer_gains": {
          "properties": {
            "gainers_filter": {
              "type": "string"
            },
            "note": {
              "type": "string"
            },
            "since_previous_snapshot": {
              "properties": {
                "categories": {
                  "items": {
                    "properties": {
                      "category": {
                        "type": "string"
                      },
                      "payers_gained": {
                        "type": "integer"
                      }
                    },
                    "type": "object"
                  },
                  "type": "array"
                },
                "endpoints": {
                  "items": {
                    "properties": {
                      "category": {
                        "type": "string"
                      },
                      "name": {
                        "type": "string"
                      },
                      "payers_30d": {
                        "type": "integer"
                      },
                      "payers_gained": {
                        "type": "integer"
                      },
                      "price_usd": {
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "url": {
                        "type": "string"
                      }
                    },
                    "type": "object"
                  },
                  "type": "array"
                },
                "excluded": {
                  "properties": {
                    "low_calls_routes": {
                      "type": "integer"
                    },
                    "uniform_host_routes": {
                      "type": "integer"
                    }
                  },
                  "type": "object"
                }
              },
              "type": [
                "object",
                "null"
              ]
            },
            "since_week_ago": {
              "properties": {
                "categories": {
                  "items": {
                    "properties": {
                      "category": {
                        "type": "string"
                      },
                      "payers_gained": {
                        "type": "integer"
                      }
                    },
                    "type": "object"
                  },
                  "type": "array"
                },
                "endpoints": {
                  "items": {
                    "properties": {
                      "category": {
                        "type": "string"
                      },
                      "name": {
                        "type": "string"
                      },
                      "payers_30d": {
                        "type": "integer"
                      },
                      "payers_gained": {
                        "type": "integer"
                      },
                      "price_usd": {
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "url": {
                        "type": "string"
                      }
                    },
                    "type": "object"
                  },
                  "type": "array"
                },
                "excluded": {
                  "properties": {
                    "low_calls_routes": {
                      "type": "integer"
                    },
                    "uniform_host_routes": {
                      "type": "integer"
                    }
                  },
                  "type": "object"
                }
              },
              "type": [
                "object",
                "null"
              ]
            }
          },
          "type": "object"
        },
        "payer_snapshots": {
          "type": "integer"
        },
        "ranking_excluded": {
          "properties": {
            "category_top_endpoints": {
              "type": "integer"
            },
            "top_endpoints_by_payers": {
              "type": "integer"
            }
          },
          "type": "object"
        },
        "ranking_filter": {
          "type": "string"
        },
        "since_previous_snapshot": {
          "properties": {
            "baseline_date": {
              "type": "string"
            },
            "churn_pct": {
              "type": [
                "number",
                "null"
              ]
            },
            "gone_listings": {
              "type": "integer"
            },
            "gone_sellers": {
              "type": "integer"
            },
            "new_listings": {
              "type": "integer"
            },
            "new_sellers": {
              "type": "integer"
            },
            "price_changes": {
              "type": "integer"
            }
          },
          "type": [
            "object",
            "null"
          ]
        },
        "since_week_ago": {
          "properties": {
            "baseline_date": {
              "type": "string"
            },
            "churn_pct": {
              "type": [
                "number",
                "null"
              ]
            },
            "gone_listings": {
              "type": "integer"
            },
            "gone_sellers": {
              "type": "integer"
            },
            "new_listings": {
              "type": "integer"
            },
            "new_sellers": {
              "type": "integer"
            },
            "price_changes": {
              "type": "integer"
            }
          },
          "type": [
            "object",
            "null"
          ]
        },
        "snapshot_age_hours": {
          "type": [
            "number",
            "null"
          ]
        },
        "snapshot_date": {
          "type": "string"
        },
        "snapshot_taken_at": {
          "type": "string"
        },
        "snapshots_available": {
          "type": "integer"
        },
        "source": {
          "type": "string"
        },
        "top_endpoints_by_payers": {
          "items": {
            "properties": {
              "category": {
                "type": "string"
              },
              "name": {
                "type": "string"
              },
              "payers_30d": {
                "type": "integer"
              },
              "payers_gained": {
                "type": "integer"
              },
              "price_usd": {
                "type": [
                  "number",
                  "null"
                ]
              },
              "url": {
                "type": "string"
              }
            },
            "type": "object"
          },
          "type": "array"
        },
        "totals": {
          "properties": {
            "listing_farm_hosts": {
              "type": "integer"
            },
            "listing_farm_listings": {
              "type": "integer"
            },
            "listings": {
              "type": "integer"
            },
            "listings_with_payers": {
              "type": "integer"
            },
            "priced_listings": {
              "type": "integer"
            },
            "sellers": {
              "type": "integer"
            },
            "unique_payers_30d_sum": {
              "type": "integer"
            }
          },
          "type": "object"
        },
        "week_figures": {
          "type": "string"
        }
      },
      "required": [
        "snapshot_date",
        "snapshot_age_hours",
        "totals",
        "categories",
        "gaps",
        "note"
      ],
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": {
    "categories": [
      {
        "category": "string",
        "listings": 0,
        "max_price_usd": 0,
        "median_price_usd": 0,
        "min_price_usd": 0,
        "payers_30d": 0,
        "sellers": 0,
        "title": "string",
        "top_endpoints": [
          {
            "category": "string",
            "name": "string",
            "payers_30d": 0,
            "payers_gained": 0,
            "price_usd": 0,
            "url": "string"
          }
        ],
        "top_endpoints_excluded": 0
      }
    ],
    "category_filter": "string",
    "category_note": "string",
    "first_snapshot_date": "string",
    "gap_rule": "string",
    "gaps": [
      {
        "category": "string",
        "listings": 0,
        "median_price_usd": 0,
        "payers_30d": 0,
        "payers_per_seller": 0,
        "sellers": 0,
        "title": "string"
      }
    ],
    "generated_from": "string",
    "not_included": {},
    "note": "string",
    "payer_gains": {
      "gainers_filter": "string",
      "note": "string",
      "since_previous_snapshot": {
        "categories": [
          {
            "category": "string",
            "payers_gained": 0
          }
        ],
        "endpoints": [
          {
            "category": "string",
            "name": "string",
            "payers_30d": 0,
            "payers_gained": 0,
            "price_usd": 0,
            "url": "string"
          }
        ],
        "excluded": {
          "low_calls_routes": 0,
          "uniform_host_routes": 0
        }
      },
      "since_week_ago": {
        "categories": [
          {
            "category": "string",
            "payers_gained": 0
          }
        ],
        "endpoints": [
          {
            "category": "string",
            "name": "string",
            "payers_30d": 0,
            "payers_gained": 0,
            "price_usd": 0,
            "url": "string"
          }
        ],
        "excluded": {
          "low_calls_routes": 0,
          "uniform_host_routes": 0
        }
      }
    },
    "payer_snapshots": 0,
    "ranking_excluded": {
      "category_top_endpoints": 0,
      "top_endpoints_by_payers": 0
    },
    "ranking_filter": "string",
    "since_previous_snapshot": {
      "baseline_date": "string",
      "churn_pct": 0,
      "gone_listings": 0,
      "gone_sellers": 0,
      "new_listings": 0,
      "new_sellers": 0,
      "price_changes": 0
    },
    "since_week_ago": {
      "baseline_date": "string",
      "churn_pct": 0,
      "gone_listings": 0,
      "gone_sellers": 0,
      "new_listings": 0,
      "new_sellers": 0,
      "price_changes": 0
    },
    "snapshot_age_hours": 0,
    "snapshot_date": "string",
    "snapshot_taken_at": "string",
    "snapshots_available": 0,
    "source": "string",
    "top_endpoints_by_payers": [
      {
        "category": "string",
        "name": "string",
        "payers_30d": 0,
        "payers_gained": 0,
        "price_usd": 0,
        "url": "string"
      }
    ],
    "totals": {
      "listing_farm_hosts": 0,
      "listing_farm_listings": 0,
      "listings": 0,
      "listings_with_payers": 0,
      "priced_listings": 0,
      "sellers": 0,
      "unique_payers_30d_sum": 0
    },
    "week_figures": "string"
  },
  "type": "string"
}

Examples

curl

curl "https://tanod.dev/v1/x402/pulse"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://tanod.dev/v1/x402/pulse");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://tanod.dev/v1/x402/pulse")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: tanod.dev
Endpoint: https://tanod.dev/v1/x402/pulse
Machine-readable: /resources/35816.json