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": "2500",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"version": "1",
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
},
"payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"amount": "2500",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://2s.io/api/census/zipcode",
"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 Census ACS 5-year demographics for a ZIP code (ZCTA). Returns population, median age, median household income, poverty rate, household composition, race + ethnicity breakdown, education attainment, workforce (with computed unemployment rate), and housing (with computed owner-occupancy rate and median rent/home value). Backed by ~33k ZCTAs pre-ingested from api.census.gov; refreshed annually. Public-domain US government data.",
"serviceName": "2s"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"zip": "12345"
}
},
"output": {
"type": "json",
"schema": {
"type": "object",
"required": [
"ok",
"items",
"total",
"source"
],
"properties": {
"ok": {
"enum": [
true
],
"type": "boolean"
},
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"zip",
"acsYear",
"acsRelease",
"population",
"medianAge",
"income",
"poverty",
"households",
"race",
"ethnicity",
"education",
"workforce",
"housing",
"updatedAt"
],
"properties": {
"zip": {
"type": "string"
},
"race": {
"type": "object",
"required": [
"white",
"black",
"americanIndianAlaskaNative",
"asian",
"nativeHawaiianPacificIslander",
"other",
"twoOrMore"
],
"properties": {
"asian": {
"type": "number",
"nullable": true
},
"black": {
"type": "number",
"nullable": true
},
"other": {
"type": "number",
"nullable": true
},
"white": {
"type": "number",
"nullable": true
},
"twoOrMore": {
"type": "number",
"nullable": true
},
"americanIndianAlaskaNative": {
"type": "number",
"nullable": true
},
"nativeHawaiianPacificIslander": {
"type": "number",
"nullable": true
}
},
"additionalProperties": false
},
"income": {
"type": "object",
"required": [
"medianHouseholdUSD"
],
"properties": {
"medianHouseholdUSD": {
"type": "number",
"nullable": true
}
},
"additionalProperties": false
},
"acsYear": {
"type": "number",
"description": "ACS 5-year vintage end year."
},
"housing": {
"type": "object",
"required": [
"units",
"occupied",
"ownerOccupied",
"renterOccupied",
"medianHomeValueUSD",
"medianGrossRentUSD",
"pctOwnerOccupied"
],
"properties": {
"units": {
"type": "number",
"nullable": true
},
"occupied": {
"type": "number",
"nullable": true
},
"ownerOccupied": {
"type": "number",
"nullable": true
},
"renterOccupied": {
"type": "number",
"nullable": true
},
"pctOwnerOccupied": {
"type": "number",
"nullable": true,
"description": "Owner-occupancy rate as percent of occupied units (computed)."
},
"medianGrossRentUSD": {
"type": "number",
"nullable": true
},
"medianHomeValueUSD": {
"type": "number",
"nullable": true
}
},
"additionalProperties": false
},
"poverty": {
"type": "object",
"required": [
"universe",
"countBelow",
"rateBelow"
],
"properties": {
"universe": {
"type": "number",
"nullable": true
},
"rateBelow": {
"type": "number",
"nullable": true,
"description": "Poverty rate as a percent (computed)."
},
"countBelow": {
"type": "number",
"nullable": true
}
},
"additionalProperties": false
},
"education": {
"type": "object",
"required": [
"universe",
"highSchool",
"bachelors",
"masters",
"professional",
"doctorate",
"pctBachelorsOrHigher"
],
"properties": {
"masters": {
"type": "number",
"nullable": true
},
"universe": {
"type": "number",
"nullable": true
},
"bachelors": {
"type": "number",
"nullable": true
},
"doctorate": {
"type": "number",
"nullable": true
},
"highSchool": {
"type": "number",
"nullable": true
},
"professional": {
"type": "number",
"nullable": true
},
"pctBachelorsOrHigher": {
"type": "number",
"nullable": true,
"description": "Percent of 25+ adults with a bachelor's or higher (computed)."
}
},
"additionalProperties": false
},
"ethnicity": {
"type": "object",
"required": [
"hispanicOrLatino"
],
"properties": {
"hispanicOrLatino": {
"type": "number",
"nullable": true
}
},
"additionalProperties": false
},
"medianAge": {
"type": "number",
"nullable": true
},
"updatedAt": {
"type": "string"
},
"workforce": {
"type": "object",
"required": [
"laborForceSize",
"unemployed",
"unemploymentRate"
],
"properties": {
"unemployed": {
"type": "number",
"nullable": true
},
"laborForceSize": {
"type": "number",
"nullable": true
},
"unemploymentRate": {
"type": "number",
"nullable": true,
"description": "Unemployment rate as a percent (computed)."
}
},
"additionalProperties": false
},
"acsRelease": {
"type": "string",
"description": "Human-readable release label, e.g. \"ACS 5-year 2018-2022\"."
},
"households": {
"type": "object",
"required": [
"total",
"singlePerson"
],
"properties": {
"total": {
"type": "number",
"nullable": true
},
"singlePerson": {
"type": "number",
"nullable": true
}
},
"additionalProperties": false
},
"population": {
"type": "number",
"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,
"items": [
{
"zip": "example",
"race": {
"asian": 1,
"black": 1,
"other": 1,
"white": 1,
"twoOrMore": 1,
"americanIndianAlaskaNative": 1,
"nativeHawaiianPacificIslander": 1
},
"income": {
"medianHouseholdUSD": 1
},
"acsYear": 1,
"housing": {
"units": 1,
"occupied": 1,
"ownerOccupied": 1,
"renterOccupied": 1,
"pctOwnerOccupied": 1,
"medianGrossRentUSD": 1,
"medianHomeValueUSD": 1
},
"poverty": {
"universe": 1,
"rateBelow": 1,
"countBelow": 1
},
"education": {
"masters": 1,
"universe": 1,
"bachelors": 1,
"doctorate": 1,
"highSchool": 1,
"professional": 1,
"pctBachelorsOrHigher": 1
},
"ethnicity": {
"hispanicOrLatino": 1
},
"medianAge": 1,
"updatedAt": "example",
"workforce": {
"unemployed": 1,
"laborForceSize": 1,
"unemploymentRate": 1
},
"acsRelease": "example",
"households": {
"total": 1,
"singlePerson": 1
},
"population": 1
}
],
"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",
"required": [
"zip"
],
"properties": {
"zip": {
"type": "string"
}
},
"additionalProperties": false
}
}
},
"output": {
"type": "object",
"required": [
"ok",
"items",
"total",
"source"
],
"properties": {
"ok": {
"enum": [
true
],
"type": "boolean"
},
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"zip",
"acsYear",
"acsRelease",
"population",
"medianAge",
"income",
"poverty",
"households",
"race",
"ethnicity",
"education",
"workforce",
"housing",
"updatedAt"
],
"properties": {
"zip": {
"type": "string"
},
"race": {
"type": "object",
"required": [
"white",
"black",
"americanIndianAlaskaNative",
"asian",
"nativeHawaiianPacificIslander",
"other",
"twoOrMore"
],
"properties": {
"asian": {
"type": "number",
"nullable": true
},
"black": {
"type": "number",
"nullable": true
},
"other": {
"type": "number",
"nullable": true
},
"white": {
"type": "number",
"nullable": true
},
"twoOrMore": {
"type": "number",
"nullable": true
},
"americanIndianAlaskaNative": {
"type": "number",
"nullable": true
},
"nativeHawaiianPacificIslander": {
"type": "number",
"nullable": true
}
},
"additionalProperties": false
},
"income": {
"type": "object",
"required": [
"medianHouseholdUSD"
],
"properties": {
"medianHouseholdUSD": {
"type": "number",
"nullable": true
}
},
"additionalProperties": false
},
"acsYear": {
"type": "number",
"description": "ACS 5-year vintage end year."
},
"housing": {
"type": "object",
"required": [
"units",
"occupied",
"ownerOccupied",
"renterOccupied",
"medianHomeValueUSD",
"medianGrossRentUSD",
"pctOwnerOccupied"
],
"properties": {
"units": {
"type": "number",
"nullable": true
},
"occupied": {
"type": "number",
"nullable": true
},
"ownerOccupied": {
"type": "number",
"nullable": true
},
"renterOccupied": {
"type": "number",
"nullable": true
},
"pctOwnerOccupied": {
"type": "number",
"nullable": true,
"description": "Owner-occupancy rate as percent of occupied units (computed)."
},
"medianGrossRentUSD": {
"type": "number",
"nullable": true
},
"medianHomeValueUSD": {
"type": "number",
"nullable": true
}
},
"additionalProperties": false
},
"poverty": {
"type": "object",
"required": [
"universe",
"countBelow",
"rateBelow"
],
"properties": {
"universe": {
"type": "number",
"nullable": true
},
"rateBelow": {
"type": "number",
"nullable": true,
"description": "Poverty rate as a percent (computed)."
},
"countBelow": {
"type": "number",
"nullable": true
}
},
"additionalProperties": false
},
"education": {
"type": "object",
"required": [
"universe",
"highSchool",
"bachelors",
"masters",
"professional",
"doctorate",
"pctBachelorsOrHigher"
],
"properties": {
"masters": {
"type": "number",
"nullable": true
},
"universe": {
"type": "number",
"nullable": true
},
"bachelors": {
"type": "number",
"nullable": true
},
"doctorate": {
"type": "number",
"nullable": true
},
"highSchool": {
"type": "number",
"nullable": true
},
"professional": {
"type": "number",
"nullable": true
},
"pctBachelorsOrHigher": {
"type": "number",
"nullable": true,
"description": "Percent of 25+ adults with a bachelor's or higher (computed)."
}
},
"additionalProperties": false
},
"ethnicity": {
"type": "object",
"required": [
"hispanicOrLatino"
],
"properties": {
"hispanicOrLatino": {
"type": "number",
"nullable": true
}
},
"additionalProperties": false
},
"medianAge": {
"type": "number",
"nullable": true
},
"updatedAt": {
"type": "string"
},
"workforce": {
"type": "object",
"required": [
"laborForceSize",
"unemployed",
"unemploymentRate"
],
"properties": {
"unemployed": {
"type": "number",
"nullable": true
},
"laborForceSize": {
"type": "number",
"nullable": true
},
"unemploymentRate": {
"type": "number",
"nullable": true,
"description": "Unemployment rate as a percent (computed)."
}
},
"additionalProperties": false
},
"acsRelease": {
"type": "string",
"description": "Human-readable release label, e.g. \"ACS 5-year 2018-2022\"."
},
"households": {
"type": "object",
"required": [
"total",
"singlePerson"
],
"properties": {
"total": {
"type": "number",
"nullable": true
},
"singlePerson": {
"type": "number",
"nullable": true
}
},
"additionalProperties": false
},
"population": {
"type": "number",
"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 0.001 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
- 1000 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",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"version": "1",
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
},
"payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"amount": "1000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"zip": "12345"
}
},
"output": {
"type": "json",
"schema": {
"type": "object",
"required": [
"ok",
"items",
"total",
"source"
],
"properties": {
"ok": {
"enum": [
true
],
"type": "boolean"
},
"items": {
"type": "array",
"items": {
"type": "object",
"additionalProperties": {}
}
},
"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,
"items": [
{}
],
"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",
"required": [
"zip"
],
"properties": {
"zip": {
"type": "string",
"pattern": "^\\d{5}$"
}
},
"additionalProperties": false
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-06-18 05:24Z
- Last indexed by Roundhouse
- 2026-07-17 19:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-12 21:16Z
- 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.
Show the promptHide the prompt
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/census/zipcode, 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.