Saylor Innovations FDA Recalls (
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SearchLiveeip155:8453Exactvia facilitator:payAI
RecallsFdaDrugSafety
Calls · 30d
2↑ 75%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 27 snapshots so far.
$15.76
Verified settled volume
1,657 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
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
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aaThe 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": "Payment required to access this resource.",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"memo": "saylor:recalls:drug",
"name": "USD Coin",
"note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"memo": "saylor:recalls:drug",
"session": "eyJhcnRpY2xlSWQiOiJyZWNhbGxzOmRydWciLCJyZWZlcmVuY2UiOiI0bUV2aWpCaW4yVnREZEVZSFRWYUZUSFQzemI0QnZiZ216VDRmaGk1czJqeiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyMjUyMDM2NjYzfQ.YbdSjP2gZKHQpAkGNIZdX5124VX_NgMcIH0WcuSwk2w",
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
"reference": "4mEvijBin2VtDdEYHTVaFTHT3zb4BvbgmzT4fhi5s2jz"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://saylorinnovations.com/api/recalls/drug?q=peanut",
"tags": [
"recalls",
"fda",
"drug",
"safety"
],
"iconUrl": "https://saylorinnovations.com/og-image.jpg",
"mimeType": "application/json",
"description": "FDA drug recall search (openFDA) - product, reason, firm, classification and status",
"serviceName": "Saylor Innovations FDA Recalls ("
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "peanut"
}
},
"output": {
"type": "json",
"example": {
"kind": "drug",
"count": 1,
"found": true,
"source": "openFDA (drug enforcement)",
"recalls": [
{
"state": "MI",
"reason": "potential for contamination with Listeria monocytogenes",
"status": "Terminated",
"product": "1.5 oz PEANUT BUTTER COOKIES, 80/case",
"initiated": "2016-02-11",
"recall_number": "F-2473-2016",
"classification": "Class I",
"recalling_firm": "Savory Foods, Inc."
}
],
"total_matches": 763
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "optional keyword search in product/reason (query)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"found"
],
"properties": {
"kind": {
"type": [
"string",
"null"
],
"description": "Kind of record"
},
"count": {
"type": [
"number",
"null"
],
"description": "Number of items returned"
},
"found": {
"type": "boolean",
"description": "True when the lookup matched a record"
},
"query": {
"description": "The query as the server interpreted it"
},
"source": {
"type": [
"string",
"null"
],
"description": "Data source the values come from"
},
"recalls": {
"type": "array",
"items": {
"type": "object"
},
"description": "List of recalls"
},
"total_matches": {
"type": [
"integer",
"null"
],
"description": "Total number of matches before any limit is applied"
}
}
}
}
}
}
}
},
"method": "GET",
"example": {
"kind": "drug",
"count": 1,
"found": true,
"source": "openFDA (drug enforcement)",
"recalls": [
{
"state": "MI",
"reason": "potential for contamination with Listeria monocytogenes",
"status": "Terminated",
"product": "1.5 oz PEANUT BUTTER COOKIES, 80/case",
"initiated": "2016-02-11",
"recall_number": "F-2473-2016",
"classification": "Class I",
"recalling_firm": "Savory Foods, Inc."
}
],
"total_matches": 763
},
"license": "openFDA (public domain)",
"mimeType": "application/json",
"freshness": "live",
"tokenCount": null,
"inputSchema": {
"q": "optional keyword search in product/reason (query)",
"limit": "optional 1-50, default 10 (query)",
"state": "optional 2-letter US state (query)",
"classification": "optional 1 | 2 | 3 (severity, 1=most serious) (query)"
},
"serviceName": "Saylor Innovations FDA Recalls (drug)",
"instructions": "STANDARD PATH (works with stock x402 clients): send payload.transaction — a base64 partially-signed Solana transaction — and we route verify/settle through an x402 facilitator that sponsors the fee and submits it. Include the chosen accepts entry as \"accepted\" so we can match terms. ALTERNATIVE PATH (no facilitator): Pick ONE entry from accepts and use the reference and session from THAT entry — each asset has its own. USDC or USDT: send an SPL transfer of the exact amount. Native SOL (asset=So11111111111111111111111111111111111111112, extra.native=true): send that many lamports with a system transfer. Either way include extra.reference as a read-only account (Solana Pay style), then retry with PAYMENT-SIGNATURE: base64({x402Version:2, payload:{session, reference}}). If your client cannot attach a reference, send payload.signature instead (USDC only). SOL amounts are quoted live and expire in 120s; stablecoins do not move. The facilitator path verifies and settles in this request. Only the alternative self-submitted Solana path needs retries while the transfer is indexed (typically 3-4 attempts over 10-20s). On that path, a 402 saying \"payment not found on-chain yet\" means keep retrying.",
"outputSchema": {
"type": "object",
"required": [
"found"
],
"properties": {
"found": {
"type": "boolean"
},
"recalls": {
"type": "array",
"items": {
"type": "object"
}
},
"total_matches": {
"type": [
"integer",
"null"
]
}
}
},
"noPathTemplate": true,
"settlementModes": [
"facilitator-transaction",
"self-submitted-reference"
],
"typicalLatencyMs": 800
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.01USDC≈ $0.01 USD
on Base · exact scheme
Pay 0.01 USDC on Base to 0xA2A8…fc8aa. The signed payment is good for 2 minutes.
- Paid to
- 0xA2A8…fc8aa
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 10000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"memo": "saylor:recalls:drug",
"name": "USD Coin",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "peanut"
}
},
"output": {
"type": "json",
"example": {
"kind": "drug",
"count": 1,
"found": true,
"source": "openFDA (drug enforcement)",
"recalls": [
{
"state": "MI",
"reason": "potential for contamination with Listeria monocytogenes",
"status": "Terminated",
"product": "1.5 oz PEANUT BUTTER COOKIES, 80/case",
"initiated": "2016-02-11",
"recall_number": "F-2473-2016",
"classification": "Class I",
"recalling_firm": "Savory Foods, Inc."
}
],
"total_matches": 763
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "optional keyword search in product/reason (query)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"found"
],
"properties": {
"kind": {
"type": [
"string",
"null"
],
"description": "Kind of record"
},
"count": {
"type": [
"number",
"null"
],
"description": "Number of items returned"
},
"found": {
"type": "boolean",
"description": "True when the lookup matched a record"
},
"query": {
"description": "The query as the server interpreted it"
},
"source": {
"type": [
"string",
"null"
],
"description": "Data source the values come from"
},
"recalls": {
"type": "array",
"items": {
"type": "object"
},
"description": "List of recalls"
},
"total_matches": {
"type": [
"integer",
"null"
],
"description": "Total number of matches before any limit is applied"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-17 21:05Z
- Last indexed by Roundhouse
- 2026-10-26 21:16Z
- Last enriched (probe, favicon, geo)
- 2026-10-17 15:45Z
- x402 version
- 2
- Max timeout
- 120s
- Liveness probe
- HTTP 402
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. 27 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 Saylor Innovations FDA Recalls ( 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=Saylor%20Innovations%20FDA%20Recalls%20('
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://saylorinnovations.com/api/recalls/drug, 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.