SEO Content Gap Analyzer
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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.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
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"resource": {
"url": "https://agent-data.centorprat.workers.dev/tools/seo-content-gap-analyzer",
"tags": [
"seo",
"keywords",
"content",
"data"
],
"mimeType": "application/json",
"description": "Give your page + 1-5 competitor pages. Returns the keyword phrases, topic clusters, questions, entities and non-keyword signals competitors emphasise that your page under-covers or omits - weighted by competitor consensus, scored, and prioritized into actions. Keyless, read-only, agent-callable. One search per call (result caps in the input schema); failed lookups are not charged.",
"serviceName": "SEO Content Gap Analyzer"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"yourUrl": "https://www.python.org/about/",
"competitorUrls": [
"https://www.ruby-lang.org/en/about/"
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"items": [
{
"signal": "large-content-gap",
"yourUrl": "https://www.python.org/about/",
"checkedAt": "2026-10-23T11:32:13+00:00",
"yourTitle": "About Python™ | Python.org",
"missingTopics": [
{
"topic": "ruby",
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"phraseCount": 116,
"examplePhrases": [
"ruby",
"ruby ruby",
"wondering why ruby",
"ideals of ruby",
"implementations of ruby",
"creator of ruby"
],
"competitorConsensus": 1
},
{
"topic": "languages",
"gapScore": 39.8,
"phraseCount": 16,
"examplePhrases": [
"languages",
"ruby from other languages",
"popularity of programming languages",
"looked at other languages",
"outrageous in many languages",
"inspired by functional languages"
],
"competitorConsensus": 1
},
{
"topic": "matz",
"gapScore": 37.4,
"phraseCount": 19,
"examplePhrases": [
"matz",
"yukihiro matz",
"creator yukihiro matz",
"extension libraries as matz",
"ruby creator yukihiro matz",
"awesome rubies references matz"
],
"competitorConsensus": 1
},
{
"topic": "contents",
"gapScore": 32.4,
"phraseCount": 5,
"examplePhrases": [
"table of contents",
"contents",
"contents table of contents",
"rss table of contents",
"2003 table of contents"
],
"competitorConsensus": 1
},
{
"topic": "creator",
"gapScore": 31.6,
"phraseCount": 7,
"examplePhrases": [
"creator",
"ideals of ruby creator",
"ruby creator",
"interview with the creator",
"careful balance its creator",
"led by ruby creator"
],
"competitorConsensus": 1
},
{
"topic": "rss",
"gapScore": 30.4,
"phraseCount": 5,
"examplePhrases": [
"news rss",
"rss",
"recent news rss",
"bibliography recent news rss",
"logo news rss"
],
"competitorConsensus": 1
},
{
"topic": "perl",
"gapScore": 26,
"phraseCount": 9,
"examplePhrases": [
"perl",
"ruby from perl",
"easier than in perl",
"parrot virtual machine perl",
"favorite languages perl",
"powerful than perl"
],
"competitorConsensus": 1
},
{
"topic": "table",
"gapScore": 24.3,
"phraseCount": 9,
"examplePhrases": [
"table",
"table of contents table",
"contents table",
"recent news rss table",
"december 22nd 2003 table",
"news rss table"
],
"competitorConsensus": 1
},
{
"topic": "features",
"gapScore": 24.1,
"phraseCount": 13,
"examplePhrases": [
"features",
"ruby features",
"objectoriented languages ruby features",
"wealth of other features",
"handle errors ruby features",
"os allows ruby features"
],
"competitorConsensus": 1
},
{
"topic": "libraries",
"gapScore": 23.9,
"phraseCount": 10,
"examplePhrases": [
"libraries",
"install docs libraries",
"docs libraries",
"extension libraries",
"ruby install docs libraries",
"tw install docs libraries"
],
"competitorConsensus": 1
},
{
"topic": "feature",
"gapScore": 23.6,
"phraseCount": 4,
"examplePhrases": [
"blocks truly expressive feature",
"truly expressive feature",
"expressive feature",
"feature"
],
"competitorConsensus": 1
},
{
"topic": "methods",
"gapScore": 23.1,
"phraseCount": 12,
"examplePhrases": [
"methods",
"language by giving methods",
"syntactic sugar for methods",
"words many other methods",
"receive all its methods",
"adds pile of methods"
],
"competitorConsensus": 1
}
],
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{
"words": 1,
"phrase": "ruby",
"status": "missing",
"gapScore": 200,
"yourWeight": 0,
"competitorWeight": 200,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 2,
"phrase": "ruby ruby",
"status": "missing",
"gapScore": 21.3,
"yourWeight": 0,
"competitorWeight": 19,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 3,
"phrase": "table of contents",
"status": "missing",
"gapScore": 14.9,
"yourWeight": 0,
"competitorWeight": 12,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 1,
"phrase": "languages",
"status": "under-covered",
"gapScore": 14,
"yourWeight": 1,
"competitorWeight": 15,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 1,
"phrase": "table",
"status": "missing",
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"competitorWeight": 12,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 1,
"phrase": "contents",
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"competitorWeight": 12,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 1,
"phrase": "matz",
"status": "missing",
"gapScore": 11,
"yourWeight": 0,
"competitorWeight": 11,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 2,
"phrase": "news rss",
"status": "missing",
"gapScore": 10.1,
"yourWeight": 0,
"competitorWeight": 9,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 1,
"phrase": "creator",
"status": "missing",
"gapScore": 10,
"yourWeight": 0,
"competitorWeight": 10,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
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"phrase": "perl",
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"yourWeight": 0,
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},
{
"words": 1,
"phrase": "blocks",
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"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 1,
"phrase": "libraries",
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"competitorsTotal": 1,
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},
{
"words": 1,
"phrase": "rss",
"status": "missing",
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{
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"yourWeight": 0,
"competitorWeight": 9,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 4,
"phrase": "ruby is so popular",
"status": "missing",
"gapScore": 8.2,
"yourWeight": 0,
"competitorWeight": 6,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 4,
"phrase": "popular its fans call",
"status": "missing",
"gapScore": 8.2,
"yourWeight": 0,
"competitorWeight": 6,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 4,
"phrase": "fans call it beautiful",
"status": "missing",
"gapScore": 8.2,
"yourWeight": 0,
"competitorWeight": 6,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 4,
"phrase": "ruby in twenty minutes",
"status": "missing",
"gapScore": 8.2,
"yourWeight": 0,
"competitorWeight": 6,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 4,
"phrase": "ruby from other languages",
"status": "missing",
"gapScore": 8.2,
"yourWeight": 0,
"competitorWeight": 6,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 1,
"phrase": "java",
"status": "missing",
"gapScore": 8,
"yourWeight": 0,
"competitorWeight": 8,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 2,
"phrase": "started explore",
"status": "missing",
"gapScore": 7.8,
"yourWeight": 0,
"competitorWeight": 7,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 3,
"phrase": "wondering why ruby",
"status": "missing",
"gapScore": 7.4,
"yourWeight": 0,
"competitorWeight": 6,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 3,
"phrase": "popular its fans",
"status": "missing",
"gapScore": 7.4,
"yourWeight": 0,
"competitorWeight": 6,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 3,
"phrase": "call it beautiful",
"status": "missing",
"gapScore": 7.4,
"yourWeight": 0,
"competitorWeight": 6,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 3,
"phrase": "yet they say",
"status": "missing",
"gapScore": 7.4,
"yourWeight": 0,
"competitorWeight": 6,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 3,
"phrase": "say it handy",
"status": "missing",
"gapScore": 7.4,
"yourWeight": 0,
"competitorWeight": 6,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 3,
"phrase": "handy and practical",
"status": "missing",
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"yourWeight": 0,
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"competitorConsensus": 1
},
{
"words": 3,
"phrase": "practical what gives",
"status": "missing",
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"yourWeight": 0,
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"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 3,
"phrase": "ruby in twenty",
"status": "missing",
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"yourWeight": 0,
"competitorWeight": 6,
"competitorsTotal": 1,
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},
{
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{
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{
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{
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"phrase": "ruby from python",
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{
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"phrase": "ruby reference manual",
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"competitorConsensus": 1
},
{
"words": 3,
"phrase": "recent news rss",
"status": "missing",
"gapScore": 7.4,
"yourWeight": 0,
"competitorWeight": 6,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 1,
"phrase": "popular",
"status": "missing",
"gapScore": 7,
"yourWeight": 0,
"competitorWeight": 7,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 1,
"phrase": "mixin",
"status": "missing",
"gapScore": 7,
"yourWeight": 0,
"competitorWeight": 7,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 1,
"phrase": "explore",
"status": "missing",
"gapScore": 7,
"yourWeight": 0,
"competitorWeight": 7,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 1,
"phrase": "php",
"status": "missing",
"gapScore": 7,
"yourWeight": 0,
"competitorWeight": 7,
"competitorsTotal": 1,
"competitorConsensus": 1
},
{
"words": 1,
"phrase": "recent",
"status": "missing",
"gapScore": 7,
"yourWeight": 0,
"competitorWeight": 7,
"competitorsTotal": 1,
"competitorConsensus": 1
}
],
"contentGapScore": 94,
"yourPageFetched": true,
"questionIntentGaps": [],
"competitorsAnalyzed": 1,
"competitorsRequested": 1,
"competitorMedianWordCount": 1360,
"coverageOfCompetitorTopics": 6
}
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"required": [
"yourUrl",
"competitorUrls"
],
"properties": {
"yourUrl": {
"type": "string",
"description": "The page you want to rank, e.g. \"https://your-site.com/guide\". Its content is compared against the competitors."
},
"competitorUrls": {
"type": "array",
"items": {
"type": "string"
},
"maxItems": 3,
"description": "Competing pages that rank for your topic, e.g. [\"https://competitor-a.com/guide\", \"https://competitor-b.com/guide\"]. One gap analysis is produced comparing your page against all of them."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
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}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 0.05 USDC on Base to 0x8d38…2B120. The signed payment is good for 5 minutes.
- Paid to
- 0x8d38…2B120
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 50000 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
- 0x8d38…2B120
- Token contract
- 0x3c49…c3359
- Payment window
- 5 minutes
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
- 3644Dr…HRHQh
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
The catalog’s raw entry
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{
"bazaar": {
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"input": {
"body": {
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"competitorUrls": [
"https://www.ruby-lang.org/en/about/"
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"items": [
{
"signal": "large-content-gap",
"yourUrl": "https://www.python.org/about/",
"checkedAt": "2026-10-23T11:32:13+00:00",
"yourTitle": "About Python™ | Python.org",
"missingTopics": [
{
"topic": "ruby",
"gapScore": 403.1,
"phraseCount": 116,
"examplePhrases": [
"ruby",
"ruby ruby",
"wondering why ruby",
"ideals of ruby",
"implementations of ruby",
"creator of ruby"
],
"competitorConsensus": 1
},
{
"topic": "languages",
"gapScore": 39.8,
"phraseCount": 16,
"examplePhrases": [
"languages",
"ruby from other languages",
"popularity of programming languages",
"looked at other languages",
"outrageous in many languages",
"inspired by functional languages"
],
"competitorConsensus": 1
},
{
"topic": "matz",
"gapScore": 37.4,
"phraseCount": 19,
"examplePhrases": [
"matz",
"yukihiro matz",
"creator yukihiro matz",
"extension libraries as matz",
"ruby creator yukihiro matz",
"awesome rubies references matz"
],
"competitorConsensus": 1
},
{
"topic": "contents",
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"phraseCount": 5,
"examplePhrases": [
"table of contents",
"contents",
"contents table of contents",
"rss table of contents",
"2003 table of contents"
],
"competitorConsensus": 1
},
{
"topic": "creator",
"gapScore": 31.6,
"phraseCount": 7,
"examplePhrases": [
"creator",
"ideals of ruby creator",
"ruby creator",
"interview with the creator",
"careful balance its creator",
"led by ruby creator"
],
"competitorConsensus": 1
},
{
"topic": "rss",
"gapScore": 30.4,
"phraseCount": 5,
"examplePhrases": [
"news rss",
"rss",
"recent news rss",
"bibliography recent news rss",
"logo news rss"
],
"competitorConsensus": 1
},
{
"topic": "perl",
"gapScore": 26,
"phraseCount": 9,
"examplePhrases": [
"perl",
"ruby from perl",
"easier than in perl",
"parrot virtual machine perl",
"favorite languages perl",
"powerful than perl"
],
"competitorConsensus": 1
},
{
"topic": "table",
"gapScore": 24.3,
"phraseCount": 9,
"examplePhrases": [
"table",
"table of contents table",
"contents table",
"recent news rss table",
"december 22nd 2003 table",
"news rss table"
],
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{
"topic": "features",
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"phraseCount": 13,
"examplePhrases": [
"features",
"ruby features",
"objectoriented languages ruby features",
"wealth of other features",
"handle errors ruby features",
"os allows ruby features"
],
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{
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"examplePhrases": [
"libraries",
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"docs libraries",
"extension libraries",
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{
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}
}Provenance
- Seen in the source catalog
- 2026-10-25 17:34Z
- Last indexed by Roundhouse
- 2026-10-26 17:40Z
- Last enriched (probe, favicon, geo)
- 2026-10-23 18:18Z
- 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. 3 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 SEO Content Gap Analyzer 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=SEO%20Content%20Gap%20Analyzer' 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://agent-data.centorprat.workers.dev/tools/seo-content-gap-analyzer, 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.