Roundhouse AI

Exa

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SearchLiveeip155:8453Exactvia cdp
https://api.exa.ai/contents
SearchAiWebResearch
Calls · 30d
182↑ 0.3%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$33.40
Verified settled volume
A floor: summed over 5,000 of 33,084 verified settlements.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
158
Calls · 30d
Upstream's own call count for this endpoint, not ours.
29
Unique payers · 30d
Last called 2026-09-24 11:28Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x6d6E695b09861467c7d462f5AAF31cF3540B9192

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.

Accepts

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

0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0x6d6E…B9192. The signed payment is good for 1 minute.

Paid to
0x6d6E…B9192
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
1000 smallest units
1000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
12Ec2c…R5w9E
Token contract
EPjFWd…TDt1v
Payment window
1 minute
0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0xB98e…32dbC. The signed payment is good for 168 hours.

Paid to
0xB98e…32dbC
USD Coin contract
0x8335…02913
Payment window
168 hours
As published
1000 smallest units
1000units
on eip155:480 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0xB98e…32dbC
Token contract
0x79A0…D24d1
Payment window
168 hours
1000units
on eip155:5042 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0xB98e…32dbC
Token contract
0x3600…00000
Payment window
168 hours
1000units
on eip155:5042 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0xB98e…32dbC
Token contract
0x3600…00000
Payment window
1 hour
0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0xB98e…32dbC. The signed payment is good for 1 hour.

Paid to
0xB98e…32dbC
USD Coin contract
0x8335…02913
Payment window
1 hour
As published
1000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "acceptId": "legacy",
      "totalUsd": 0.001,
      "breakdown": {
        "text": 0.001
      }
    },
    "payTo": "0x6d6E695b09861467c7d462f5AAF31cF3540B9192",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "acceptId": "solana-usdc-mainnet",
      "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
      "totalUsd": 0.001,
      "breakdown": {
        "text": 0.001
      }
    },
    "payTo": "12Ec2cJmfR1C9uwejzxcuMhUgEC7wDrLgm1wBvvR5w9E",
    "amount": "1000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 60
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "GatewayWalletBatched",
      "assets": [
        {
          "symbol": "USDC",
          "address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
          "decimals": 6
        }
      ],
      "version": "1",
      "acceptId": "base-usdc-gateway",
      "totalUsd": 0.001,
      "breakdown": {
        "text": 0.001
      },
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
      "minValiditySeconds": 604800
    },
    "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0x79A02482A880bCE3F13e09Da970dC34db4CD24d1",
    "extra": {
      "name": "GatewayWalletBatched",
      "assets": [
        {
          "symbol": "USDC",
          "address": "0x79a02482a880bce3f13e09da970dc34db4cd24d1",
          "decimals": 6
        }
      ],
      "version": "1",
      "acceptId": "worldchain-usdc-gateway",
      "totalUsd": 0.001,
      "breakdown": {
        "text": 0.001
      },
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
      "minValiditySeconds": 604800
    },
    "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:480",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0x3600000000000000000000000000000000000000",
    "extra": {
      "name": "GatewayWalletBatched",
      "assets": [
        {
          "symbol": "USDC",
          "address": "0x3600000000000000000000000000000000000000",
          "decimals": 6
        }
      ],
      "version": "1",
      "acceptId": "arc-usdc-gateway",
      "totalUsd": 0.001,
      "breakdown": {
        "text": 0.001
      },
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
      "minValiditySeconds": 604800
    },
    "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:5042",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0x3600000000000000000000000000000000000000",
    "extra": {
      "name": "USDC",
      "version": "2",
      "acceptId": "arc-usdc-circle",
      "totalUsd": 0.001,
      "breakdown": {
        "text": 0.001
      },
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:5042",
    "maxTimeoutSeconds": 3600
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "acceptId": "base-usdc-circle",
      "totalUsd": 0.001,
      "breakdown": {
        "text": 0.001
      },
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 3600
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "text": true,
          "urls": [
            "https://example.com"
          ]
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "results": [
            {
              "url": "https://example.com",
              "text": "Page content...",
              "title": "Example"
            }
          ]
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "bodyType",
            "body",
            "method"
          ],
          "properties": {
            "body": {
              "type": "object",
              "properties": {
                "ids": {
                  "type": "array",
                  "description": "Array of Exa document IDs to retrieve content for"
                },
                "text": {
                  "type": "boolean",
                  "description": "Include full text content"
                },
                "urls": {
                  "type": "array",
                  "description": "Array of URLs to retrieve content for"
                },
                "summary": {
                  "type": "boolean",
                  "description": "Include AI summary"
                },
                "highlights": {
                  "type": "boolean",
                  "description": "Include text highlights"
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  },
  "agentkit": {
    "info": {
      "uri": "https://api.exa.ai/contents",
      "nonce": "10bd9347f29be5a30fc2737205b99b92",
      "domain": "api.exa.ai",
      "version": "1",
      "issuedAt": "2026-09-24T13:32:33.715Z",
      "resources": [
        "https://api.exa.ai/contents"
      ],
      "statement": "Verify your agent is backed by a real human to access Exa"
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "domain",
        "address",
        "uri",
        "version",
        "chainId",
        "type",
        "nonce",
        "issuedAt",
        "signature"
      ],
      "properties": {
        "uri": {
          "type": "string",
          "format": "uri"
        },
        "type": {
          "type": "string"
        },
        "nonce": {
          "type": "string"
        },
        "domain": {
          "type": "string"
        },
        "address": {
          "type": "string"
        },
        "chainId": {
          "type": "string"
        },
        "version": {
          "type": "string"
        },
        "issuedAt": {
          "type": "string",
          "format": "date-time"
        },
        "notBefore": {
          "type": "string",
          "format": "date-time"
        },
        "requestId": {
          "type": "string"
        },
        "resources": {
          "type": "array",
          "items": {
            "type": "string",
            "format": "uri"
          }
        },
        "signature": {
          "type": "string"
        },
        "statement": {
          "type": "string"
        },
        "expirationTime": {
          "type": "string",
          "format": "date-time"
        }
      }
    },
    "_options": {
      "mode": {
        "type": "free-trial",
        "uses": 100
      },
      "network": "eip155:480",
      "statement": "Verify your agent is backed by a real human to access Exa"
    },
    "supportedChains": [
      {
        "type": "eip191",
        "chainId": "eip155:480"
      },
      {
        "type": "eip1271",
        "chainId": "eip155:480"
      }
    ]
  }
}

Provenance

Seen in the source catalog
2026-09-24 13:32Z
Last indexed by Roundhouse
2026-09-24 15:30Z
Last enriched (probe, favicon, geo)
2026-09-13 18:15Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 404
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far. 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 Exa 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=Exa'
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.exa.ai/contents, 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.