2s
The (most) everything API: 575+ pay-per-call endpoints for AI agents — ground-truth data, a full AI gateway, and agent infrastructure (storage, queues, watchers). USDC via x402, no signup, no API keys, and upto billing: pay actual usage, not the quote.
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.
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-SIGNATURE required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
"amount": "6000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
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{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
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"version": "1",
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
},
"payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"amount": "6000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
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}
],
"resource": {
"url": "https://2s.io/api/gov/senate-votes",
"tags": [
"public-records",
"identifiers",
"ai-agents",
"us-gov-data",
"x402",
"upto-billing",
"ai-gateway",
"agent-infrastructure"
],
"iconUrl": "https://2s.io/icon-512.png",
"mimeType": "application/json",
"description": "US Senate roll-call votes, newest first by vote date. Each record includes congress + session + vote_number, vote question + result + title + majority requirement, vote date/time, document name (e.g., S. 5, H.R. 4499), document title, grand totals (yeas/nays/present/absent), AND per-party breakdown (D/R/I yea/nay/present/absent counts derived from member-level vote_cast). Filters (all optional, AND-combined): congress, session (1 or 2), result substring, document substring (e.g., 'S. 5'), since/until (vote_date), limit + offset. Locally aggregated from senate.gov XML feeds (refreshed daily). Public-domain US government records.",
"serviceName": "2s"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 25,
"since": "2024-01-01",
"until": "2024-01-01",
"offset": 0,
"result": "xx",
"session": 1,
"congress": 100,
"document": "xx"
}
},
"output": {
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"properties": {
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"required": [
"congress",
"session",
"result",
"document",
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"properties": {
"limit": {
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},
"since": {
"type": "string",
"nullable": true
},
"until": {
"type": "string",
"nullable": true
},
"offset": {
"type": "integer"
},
"result": {
"type": "string",
"nullable": true
},
"session": {
"type": "number",
"nullable": true
},
"congress": {
"type": "number",
"nullable": true
},
"document": {
"type": "string",
"nullable": true
}
},
"additionalProperties": false
},
"nextOffset": {
"type": "integer",
"nullable": true
},
"previousOffset": {
"type": "integer",
"nullable": true
}
},
"additionalProperties": false
},
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"congress",
"session",
"voteNumber",
"congressYear",
"voteDate",
"voteTime",
"voteQuestion",
"voteResult",
"voteResultText",
"voteTitle",
"majorityRequirement",
"documentName",
"documentTitle",
"totals",
"totalsByParty",
"sourceXmlUrl"
],
"properties": {
"totals": {
"type": "object",
"required": [
"yeas",
"nays",
"present",
"absent"
],
"properties": {
"nays": {
"type": "integer"
},
"yeas": {
"type": "integer"
},
"absent": {
"type": "integer"
},
"present": {
"type": "integer"
}
},
"additionalProperties": false
},
"session": {
"type": "integer"
},
"congress": {
"type": "integer"
},
"voteDate": {
"type": "string",
"nullable": true
},
"voteTime": {
"type": "string",
"nullable": true
},
"voteTitle": {
"type": "string",
"nullable": true
},
"voteNumber": {
"type": "integer"
},
"voteResult": {
"type": "string",
"nullable": true
},
"congressYear": {
"type": "integer",
"nullable": true
},
"documentName": {
"type": "string",
"nullable": true
},
"sourceXmlUrl": {
"type": "string"
},
"voteQuestion": {
"type": "string",
"nullable": true
},
"documentTitle": {
"type": "string",
"nullable": true
},
"totalsByParty": {
"type": "object",
"additionalProperties": {
"type": "object",
"required": [
"yea",
"nay",
"present",
"absent"
],
"properties": {
"nay": {
"type": "integer"
},
"yea": {
"type": "integer"
},
"absent": {
"type": "integer"
},
"present": {
"type": "integer"
}
},
"additionalProperties": false
}
},
"voteResultText": {
"type": "string",
"nullable": true
},
"majorityRequirement": {
"type": "string",
"nullable": true
}
},
"additionalProperties": false
}
},
"total": {
"type": "integer",
"nullable": true,
"description": "Total matching rows upstream; null when unknown."
},
"source": {
"type": "object",
"required": [
"provider",
"url",
"license"
],
"properties": {
"url": {
"type": "string"
},
"license": {
"type": "string"
},
"provider": {
"type": "string"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"example": {
"ok": true,
"meta": {
"query": {
"limit": 1,
"since": "example",
"until": "example",
"offset": 1,
"result": "example",
"session": 1,
"congress": 1,
"document": "example"
},
"nextOffset": 1,
"previousOffset": 1
},
"items": [
{
"totals": {
"nays": 1,
"yeas": 1,
"absent": 1,
"present": 1
},
"session": 1,
"congress": 1,
"voteDate": "example",
"voteTime": "example",
"voteTitle": "example",
"voteNumber": 1,
"voteResult": "example",
"congressYear": 1,
"documentName": "example",
"sourceXmlUrl": "https://example.com",
"voteQuestion": "example",
"documentTitle": "example",
"totalsByParty": {},
"voteResultText": "example",
"majorityRequirement": "example"
}
],
"total": 1,
"source": {
"url": "example",
"license": "example",
"provider": "example"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"queryParams"
],
"properties": {
"type": {
"const": "http"
},
"method": {
"const": "GET"
},
"queryParams": {
"type": "object",
"properties": {
"limit": {
"type": "integer",
"default": 25,
"maximum": 100,
"minimum": 1,
"description": "Max records (1-100). Default 25."
},
"since": {
"type": "string",
"description": "Earliest vote date (YYYY-MM-DD)."
},
"until": {
"type": "string",
"description": "Latest vote date (YYYY-MM-DD)."
},
"offset": {
"type": "integer",
"default": 0,
"maximum": 100000,
"minimum": 0,
"description": "Offset for pagination. Default 0."
},
"result": {
"type": "string",
"maxLength": 60,
"minLength": 2,
"description": "Filter by vote result (case-insensitive substring). Examples: \"Agreed\", \"Rejected\", \"Cloture\"."
},
"session": {
"type": "integer",
"description": "Filter by session (1 = odd year, 2 = even year of a Congress)."
},
"congress": {
"type": "integer",
"maximum": 200,
"minimum": 100,
"description": "Filter by Congress number. The 119th Congress = 2025-2026."
},
"document": {
"type": "string",
"maxLength": 40,
"minLength": 2,
"description": "Filter by document name substring (case-insensitive on document_name). Examples: \"S. 5\", \"H.R. 4499\", \"H.R.\"."
}
},
"additionalProperties": false
}
}
},
"output": {
"type": "object",
"required": [
"ok",
"items",
"total",
"source"
],
"properties": {
"ok": {
"enum": [
true
],
"type": "boolean"
},
"meta": {
"type": "object",
"required": [
"query",
"nextOffset",
"previousOffset"
],
"properties": {
"query": {
"type": "object",
"required": [
"congress",
"session",
"result",
"document",
"since",
"until",
"limit",
"offset"
],
"properties": {
"limit": {
"type": "integer"
},
"since": {
"type": "string",
"nullable": true
},
"until": {
"type": "string",
"nullable": true
},
"offset": {
"type": "integer"
},
"result": {
"type": "string",
"nullable": true
},
"session": {
"type": "number",
"nullable": true
},
"congress": {
"type": "number",
"nullable": true
},
"document": {
"type": "string",
"nullable": true
}
},
"additionalProperties": false
},
"nextOffset": {
"type": "integer",
"nullable": true
},
"previousOffset": {
"type": "integer",
"nullable": true
}
},
"additionalProperties": false
},
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"congress",
"session",
"voteNumber",
"congressYear",
"voteDate",
"voteTime",
"voteQuestion",
"voteResult",
"voteResultText",
"voteTitle",
"majorityRequirement",
"documentName",
"documentTitle",
"totals",
"totalsByParty",
"sourceXmlUrl"
],
"properties": {
"totals": {
"type": "object",
"required": [
"yeas",
"nays",
"present",
"absent"
],
"properties": {
"nays": {
"type": "integer"
},
"yeas": {
"type": "integer"
},
"absent": {
"type": "integer"
},
"present": {
"type": "integer"
}
},
"additionalProperties": false
},
"session": {
"type": "integer"
},
"congress": {
"type": "integer"
},
"voteDate": {
"type": "string",
"nullable": true
},
"voteTime": {
"type": "string",
"nullable": true
},
"voteTitle": {
"type": "string",
"nullable": true
},
"voteNumber": {
"type": "integer"
},
"voteResult": {
"type": "string",
"nullable": true
},
"congressYear": {
"type": "integer",
"nullable": true
},
"documentName": {
"type": "string",
"nullable": true
},
"sourceXmlUrl": {
"type": "string"
},
"voteQuestion": {
"type": "string",
"nullable": true
},
"documentTitle": {
"type": "string",
"nullable": true
},
"totalsByParty": {
"type": "object",
"additionalProperties": {
"type": "object",
"required": [
"yea",
"nay",
"present",
"absent"
],
"properties": {
"nay": {
"type": "integer"
},
"yea": {
"type": "integer"
},
"absent": {
"type": "integer"
},
"present": {
"type": "integer"
}
},
"additionalProperties": false
}
},
"voteResultText": {
"type": "string",
"nullable": true
},
"majorityRequirement": {
"type": "string",
"nullable": true
}
},
"additionalProperties": false
}
},
"total": {
"type": "integer",
"nullable": true,
"description": "Total matching rows upstream; null when unknown."
},
"source": {
"type": "object",
"required": [
"provider",
"url",
"license"
],
"properties": {
"url": {
"type": "string"
},
"license": {
"type": "string"
},
"provider": {
"type": "string"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
}
}
}
}
},
"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.
Pay 0.0024 USDC on Base to 0x2b6D…C32C5. The signed payment is good for 1 minute.
- Paid to
- 0x2b6D…C32C5
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 2400 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
- TW6nta…cyWhn
- Token contract
- EPjFWd…TDt1v
- Payment window
- 1 minute
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
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"version": "2"
},
"payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
"amount": "2400",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"version": "1",
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
},
"payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"amount": "2400",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 25,
"since": "2024-01-01",
"until": "2024-01-01",
"offset": 0,
"result": "xx",
"session": 1,
"congress": 100,
"document": "xx"
}
},
"output": {
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true
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"congress",
"session",
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},
"offset": {
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"result": {
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}
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"items": {
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"items": {
"type": "object",
"required": [
"congress",
"session",
"voteNumber",
"congressYear",
"voteDate",
"voteTime",
"voteQuestion",
"voteResult",
"voteResultText",
"voteTitle",
"majorityRequirement",
"documentName",
"documentTitle",
"totals",
"totalsByParty",
"sourceXmlUrl"
],
"properties": {
"totals": {
"type": "object",
"required": [
"yeas",
"nays",
"present",
"absent"
],
"properties": {
"nays": {
"type": "integer"
},
"yeas": {
"type": "integer"
},
"absent": {
"type": "integer"
},
"present": {
"type": "integer"
}
},
"additionalProperties": false
},
"session": {
"type": "integer"
},
"congress": {
"type": "integer"
},
"voteDate": {
"type": "string",
"nullable": true
},
"voteTime": {
"type": "string",
"nullable": true
},
"voteTitle": {
"type": "string",
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},
"voteNumber": {
"type": "integer"
},
"voteResult": {
"type": "string",
"nullable": true
},
"congressYear": {
"type": "integer",
"nullable": true
},
"documentName": {
"type": "string",
"nullable": true
},
"sourceXmlUrl": {
"type": "string",
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},
"voteQuestion": {
"type": "string",
"nullable": true
},
"documentTitle": {
"type": "string",
"nullable": true
},
"totalsByParty": {
"type": "object",
"additionalProperties": {
"type": "object",
"required": [
"yea",
"nay",
"present",
"absent"
],
"properties": {
"nay": {
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},
"yea": {
"type": "integer"
},
"absent": {
"type": "integer"
},
"present": {
"type": "integer"
}
},
"additionalProperties": false
}
},
"voteResultText": {
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"nullable": true
},
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"type": "string",
"nullable": true
}
},
"additionalProperties": false
}
},
"total": {
"type": "integer",
"nullable": true,
"description": "Total matching rows upstream; null when unknown."
},
"source": {
"type": "object",
"required": [
"provider",
"url",
"license"
],
"properties": {
"url": {
"type": "string"
},
"license": {
"type": "string"
},
"provider": {
"type": "string"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"example": {
"ok": true,
"meta": {
"query": {
"limit": 1,
"since": "example",
"until": "example",
"offset": 1,
"result": "example",
"session": 1,
"congress": 1,
"document": "example"
},
"nextOffset": 1,
"previousOffset": 1
},
"items": [
{
"totals": {
"nays": 1,
"yeas": 1,
"absent": 1,
"present": 1
},
"session": 1,
"congress": 1,
"voteDate": "example",
"voteTime": "example",
"voteTitle": "example",
"voteNumber": 1,
"voteResult": "example",
"congressYear": 1,
"documentName": "example",
"sourceXmlUrl": "https://example.com",
"voteQuestion": "example",
"documentTitle": "example",
"totalsByParty": {},
"voteResultText": "example",
"majorityRequirement": "example"
}
],
"total": 1,
"source": {
"url": "example",
"license": "example",
"provider": "example"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"queryParams"
],
"properties": {
"type": {
"const": "http"
},
"method": {
"const": "GET"
},
"queryParams": {
"type": "object",
"properties": {
"limit": {
"type": "integer",
"default": 25,
"maximum": 100,
"minimum": 1,
"description": "Max records (1-100). Default 25."
},
"since": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"description": "Earliest vote date (YYYY-MM-DD)."
},
"until": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"description": "Latest vote date (YYYY-MM-DD)."
},
"offset": {
"type": "integer",
"default": 0,
"maximum": 100000,
"minimum": 0,
"description": "Offset for pagination. Default 0."
},
"result": {
"type": "string",
"maxLength": 60,
"minLength": 2,
"description": "Filter by vote result (case-insensitive substring). Examples: \"Agreed\", \"Rejected\", \"Cloture\"."
},
"session": {
"type": "integer",
"description": "Filter by session (1 = odd year, 2 = even year of a Congress)."
},
"congress": {
"type": "integer",
"maximum": 200,
"minimum": 100,
"description": "Filter by Congress number. The 119th Congress = 2025-2026."
},
"document": {
"type": "string",
"maxLength": 40,
"minLength": 2,
"description": "Filter by document name substring (case-insensitive on document_name). Examples: \"S. 5\", \"H.R. 4499\", \"H.R.\"."
}
},
"additionalProperties": false
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-06-18 05:29Z
- Last indexed by Roundhouse
- 2026-07-17 19:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-14 10:45Z
- x402 version
- 2
- Max timeout
- 60s
- 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
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.
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Using Roundhouse, look up the x402 service 2s 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=2s' 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://2s.io/api/gov/senate-votes, 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.