api.exa.ai
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The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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.
Pay 0.007 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
- 7000 smallest units
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
Pay 0.007 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
- 7000 smallest units
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
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
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
Pay 0.007 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
- 7000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"acceptId": "legacy",
"totalUsd": 0.006999999999999999,
"breakdown": {
"search": 0.006999999999999999
}
},
"payTo": "0x6d6E695b09861467c7d462f5AAF31cF3540B9192",
"amount": "7000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://api.exa.ai/search",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USD Coin",
"version": "2",
"acceptId": "solana-usdc-mainnet",
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"totalUsd": 0.006999999999999999,
"breakdown": {
"search": 0.006999999999999999
}
},
"payTo": "12Ec2cJmfR1C9uwejzxcuMhUgEC7wDrLgm1wBvvR5w9E",
"amount": "7000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"resource": "https://api.exa.ai/search",
"maxTimeoutSeconds": 60
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "GatewayWalletBatched",
"assets": [
{
"symbol": "USDC",
"address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"decimals": 6
}
],
"version": "1",
"acceptId": "base-usdc-gateway",
"totalUsd": 0.006999999999999999,
"breakdown": {
"search": 0.006999999999999999
},
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"minValiditySeconds": 604800
},
"payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
"amount": "7000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://api.exa.ai/search",
"maxTimeoutSeconds": 604900
},
{
"asset": "0x79A02482A880bCE3F13e09Da970dC34db4CD24d1",
"extra": {
"name": "GatewayWalletBatched",
"assets": [
{
"symbol": "USDC",
"address": "0x79a02482a880bce3f13e09da970dc34db4cd24d1",
"decimals": 6
}
],
"version": "1",
"acceptId": "worldchain-usdc-gateway",
"totalUsd": 0.006999999999999999,
"breakdown": {
"search": 0.006999999999999999
},
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"minValiditySeconds": 604800
},
"payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
"amount": "7000",
"scheme": "exact",
"network": "eip155:480",
"resource": "https://api.exa.ai/search",
"maxTimeoutSeconds": 604900
},
{
"asset": "0x3600000000000000000000000000000000000000",
"extra": {
"name": "GatewayWalletBatched",
"assets": [
{
"symbol": "USDC",
"address": "0x3600000000000000000000000000000000000000",
"decimals": 6
}
],
"version": "1",
"acceptId": "arc-usdc-gateway",
"totalUsd": 0.006999999999999999,
"breakdown": {
"search": 0.006999999999999999
},
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"minValiditySeconds": 604800
},
"payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
"amount": "7000",
"scheme": "exact",
"network": "eip155:5042",
"resource": "https://api.exa.ai/search",
"maxTimeoutSeconds": 604900
},
{
"asset": "0x3600000000000000000000000000000000000000",
"extra": {
"name": "USDC",
"version": "2",
"acceptId": "arc-usdc-circle",
"totalUsd": 0.006999999999999999,
"breakdown": {
"search": 0.006999999999999999
},
"assetTransferMethod": "eip3009"
},
"payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
"amount": "7000",
"scheme": "exact",
"network": "eip155:5042",
"resource": "https://api.exa.ai/search",
"maxTimeoutSeconds": 3600
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"acceptId": "base-usdc-circle",
"totalUsd": 0.006999999999999999,
"breakdown": {
"search": 0.006999999999999999
},
"assetTransferMethod": "eip3009"
},
"payTo": "0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC",
"amount": "7000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://api.exa.ai/search",
"maxTimeoutSeconds": 3600
}
]Provenance
- Seen in the source catalog
- 2026-10-16 23:10Z
- Last indexed by Roundhouse
- 2026-10-17 17:45Z
- Last enriched (probe, favicon, geo)
- 2026-09-24 11:15Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 404
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.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service api.exa.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.exa.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.exa.ai/search, 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. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.