AnswerPool Emerging
Rank the fastest-accelerating research topics across ~4,500 OpenAlex topics, weekly — returns rank, momentum z-score, growth, acceleration and citation-quality growth per topic, filterable by field. Use to find what is accelerating.
SearchLiveeip155:8453Exactvia cdp
Emerging-technologyResearch-trendsOpenalexTechnology-scoutingScience
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 22 snapshots so far.
$2.04
Verified settled volume
90 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-02 22:26Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xb3ba3Ca99F9742b32fC527CF62688C83b39AED8cThe 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.
0.05USDC≈ $0.05 USD
on Base · exact scheme
Pay 0.05 USDC on Base to 0xb3ba…AED8c. The signed payment is good for 5 minutes.
- Paid to
- 0xb3ba…AED8c
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 50000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xb3ba3Ca99F9742b32fC527CF62688C83b39AED8c",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"topics": [
{
"name": "Quantum error correction",
"rank": 3,
"field": "Physical Sciences",
"subfield": "Condensed Matter Physics",
"topic_id": "T12026",
"growth_1y": 0.38,
"growth_3y": 1.9,
"growth_5y": 3.2,
"works_10y": 6210,
"is_emerging": true,
"momentum_stat": 3.41,
"acceleration_3y": 0.6,
"decile_growth_3y": 1.4,
"works_last_full_year": 1841
}
],
"scan_id": "scan_2026w35",
"method_id": "technology_momentum_stat_v1",
"data_as_of": "2026-08-24",
"computed_at": "2026-08-24T06:00:00Z",
"universe_size": 4516,
"last_full_year": 2025
}
}
},
"schema": {
"type": "object",
"$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",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"title": "EmergingInput",
"properties": {
"field": {
"anyOf": [
{
"type": "string",
"maxLength": 80
},
{
"type": "null"
}
],
"title": "Field",
"default": null,
"description": "Restrict to an OpenAlex field name, e.g. 'Engineering', 'Medicine'."
},
"limit": {
"type": "integer",
"title": "Limit",
"default": 25,
"maximum": 100,
"minimum": 1,
"description": "Number of ranked topics to return."
},
"min_works": {
"type": "integer",
"title": "Min Works",
"default": 50,
"minimum": 1,
"description": "Minimum works in the last complete year (filters noise)."
},
"emerging_only": {
"type": "boolean",
"title": "Emerging Only",
"default": false,
"description": "Only topics flagged emerging (high momentum, below-median size)."
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"title": "EmergingOutput",
"required": [
"scan_id",
"computed_at",
"data_as_of",
"last_full_year",
"universe_size",
"topics"
],
"properties": {
"topics": {
"type": "array",
"items": {
"type": "object",
"title": "TopicScore",
"required": [
"topic_id",
"name",
"field",
"subfield",
"rank",
"momentum_stat",
"growth_1y",
"growth_3y",
"growth_5y",
"acceleration_3y",
"decile_growth_3y",
"works_last_full_year",
"works_10y",
"is_emerging"
],
"properties": {
"name": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Name"
},
"rank": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
],
"title": "Rank"
},
"field": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Field"
},
"subfield": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Subfield"
},
"topic_id": {
"type": "string",
"title": "Topic Id"
},
"growth_1y": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
],
"title": "Growth 1Y"
},
"growth_3y": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
],
"title": "Growth 3Y"
},
"growth_5y": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
],
"title": "Growth 5Y"
},
"works_10y": {
"type": "integer",
"title": "Works 10Y"
},
"is_emerging": {
"type": "boolean",
"title": "Is Emerging"
},
"momentum_stat": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
],
"title": "Momentum Stat",
"description": "Universe z-score blend of 3y growth, acceleration and lagged top-decile growth (method technology_momentum_stat_v1)."
},
"acceleration_3y": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
],
"title": "Acceleration 3Y"
},
"decile_growth_3y": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
],
"title": "Decile Growth 3Y"
},
"works_last_full_year": {
"type": "integer",
"title": "Works Last Full Year"
}
}
},
"title": "Topics"
},
"scan_id": {
"type": "string",
"title": "Scan Id"
},
"method_id": {
"type": "string",
"title": "Method Id",
"default": "technology_momentum_stat_v1"
},
"data_as_of": {
"type": "string",
"title": "Data As Of"
},
"disclaimer": {
"type": "string",
"title": "Disclaimer",
"default": "Statistical ranking over OpenAlex (CC0) publication counts; an estimate, not ground truth."
},
"computed_at": {
"type": "string",
"title": "Computed At"
},
"universe_size": {
"type": "integer",
"title": "Universe Size"
},
"last_full_year": {
"type": "integer",
"title": "Last Full Year"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-02 22:26Z
- Last indexed by Roundhouse
- 2026-09-24 07:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-11 15:16Z
- x402 version
- 2
- Max timeout
- 300s
- 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. 22 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 AnswerPool Emerging 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=AnswerPool%20Emerging' 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://answerpool.io/v1/technology/emerging, 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.