Grokzilla x402 Micro Pay
payment-ready until 2026-10-25
Humanless agent microservices marketplace.
Call it x402 v2
x402 v2
- Base URL
- https://grokzilla.shop
- Payment
- x402 v2, header channel
$ curl -i -X POST 'https://grokzilla.shop/api/skills/ai-detector' An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.
Endpoints 11 paid routes on grokzilla.shop
3 more in Example 402 response
Prices as captured in the 402 response: median $0.008 across the 11 endpoints.
Example 402 response
Endpoints and prices
| Method | Path | Description | Price | Network | Asset | 402 channel | Captured |
|---|---|---|---|---|---|---|---|
| POST | / | Estimate whether text (or a web page's text) is AI-written using a trained classifier: about 78% accurate on a held-out benchmark (not a guarantee). Uncertain results suggest a rerun on a longer section (300+ words); tell phrases are only a secondary 'possible AI influence' signal. | $0.01 | Base | USDC | header | since 09-25 |
| POST | / | Strip scripts/styles and return readable text or markdown from HTML. mode normalized: text with NFKC and zero-width/bidi characters stripped. | $0.008 | Base | USDC | header | since 09-25 |
| POST | / | Deterministic nested JSON to flat path-value map. Arrays, custom separators, depth limits. | $0.006 | Base | USDC | header | since 09-02 |
| POST | / | Cheap schema gate: type, required, properties, array items, plus format checks (email, date, date-time, uri, ipv4, ipv6, uuid, hostname). | $0.006 | Base | USDC | header | since 09-25 |
| POST | / | Deterministic term ranking from free text. Stopword-filtered. ngrams 2-3 adds scored multi-word phrases. | $0.008 | Base | USDC | header | since 09-25 |
| POST | / | Resolves one public name on Wikidata and returns a relationship graph from a fixed property list (instance of, country, headquarters, founder, chief executive, ownership, employer, education, membership, and similar), up to two hops. People include only notable public roles. If nothing matches, the graph is empty and reason explains why. | $0.01 | Base | USDC | header | since 09-25 |
| POST | / | Searches Wikipedia, Hacker News and DuckDuckGo, fetches the top public pages, and returns an answer written by a model only from that page text, with inline citations. Charged only for a cited model answer: model unavailable gives 503, no fetchable source gives 422, both charged:false. Creative requests (poems, stories, essays) get a 400 before payment. | $0.015 | Base | USDC | header | since 09-02 |
| POST | / | Fetches a URL and returns an on-page SEO score from real checks (title, meta, headings, alt text, keywords, and more). If the page cannot be fetched, returns an error status (403/404/5xx), is a CDN/WAF challenge page, or times out (7 s cap), it answers 422 with score null, the reason, and charged:false; no payment is taken. | $0.012 | Base | USDC | header | since 09-25 |
| POST | / | Lightweight deterministic line/word/char diff. Structured ops plus a one-line delta summary. | $0.006 | Base | USDC | header | since 09-02 |
| POST | / | Approximate cl100k/o200k token counts for budget decisions. | $0.004 | Base | USDC | header | since 09-25 |
| POST | / | Canonicalize URLs: strip tracking params, force HTTPS, sort query, extract components. | $0.005 | Base | USDC | header | since 09-02 |
Payment evidence
402 payload captured at . Check evidence JSON · Measurement methodology.
First of 11 payloads captured by the monitor.
147 lines, scroll inside
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
"amount": "6000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://grokzilla.shop/api/skills/json-flatten",
"tags": [
"utilities",
"json",
"text",
"tokens",
"hashing"
],
"iconUrl": "https://grokzilla.shop/favicon.ico",
"mimeType": "application/json",
"description": "Deterministic nested JSON to flat path-value map. Arrays, custom separators, depth limits.",
"serviceName": "Grokzilla x402 Micro Pay"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"data": {
"a": {
"b": 1
}
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"flat": {
"a.b": 1
},
"skill": "json_flatten"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {},
"options": {
"type": "object"
}
}
},
"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",
"required": [
"ok",
"skill"
],
"properties": {
"ok": {
"type": "boolean"
},
"flat": {
"type": "object",
"properties": {
"a.b": {
"type": "integer"
}
}
},
"skill": {
"type": "string"
}
}
}
}
}
}
}
}
},
"x402Version": 2
} Other captured 402 responses (10)
Captured payload 2 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://grokzilla.shop/api/skills/ai-detector",
"tags": [
"utilities",
"json",
"text",
"tokens",
"hashing"
],
"iconUrl": "https://grokzilla.shop/favicon.ico",
"mimeType": "application/json",
"description": "Estimate whether text (or a web page's text) is AI-written, with signals and confidence band",
"serviceName": "Grokzilla x402 Micro Pay"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"text": "This sentence is a sample."
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"url": null,
"skill": "ai_detector",
"signals": {
"avg_sentence_words": 5,
"repetition_detected": false
},
"verdict": "likely_human",
"supported": [
"text",
"url"
],
"text_preview": "This sentence is a sample.",
"ai_likelihood": 0.35,
"human_likelihood": 0.65
}
}
},
"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": {
"type": "object",
"properties": {
"url": {
"type": "string"
},
"text": {
"type": "string"
}
}
},
"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",
"required": [
"skill"
],
"properties": {
"url": {
"type": "null"
},
"skill": {
"type": "string"
},
"signals": {
"type": "object",
"properties": {
"avg_sentence_words": {
"type": "number"
},
"repetition_detected": {
"type": "boolean"
}
}
},
"verdict": {
"type": "string"
},
"supported": {
"type": "array",
"items": {
"type": "string"
}
},
"text_preview": {
"type": "string"
},
"ai_likelihood": {
"type": "number"
},
"human_likelihood": {
"type": "number"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 3 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://grokzilla.shop/api/skills/osint-graph",
"tags": [
"utilities",
"json",
"text",
"tokens",
"hashing"
],
"iconUrl": "https://grokzilla.shop/favicon.ico",
"mimeType": "application/json",
"description": "Resolves one public name on Wikidata and returns a relationship graph from a fixed property list (instance of, country, headquarters, founder, chief executive, ownership, employer, education, membership, and similar), up to two hops. People include only notable public roles. If nothing matches, the graph is empty and reason explains why.",
"serviceName": "Grokzilla x402 Micro Pay"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"max_depth": 2,
"seed_entity": "OpenAI"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"graph": {
"edges": [
{
"to": "n2",
"from": "n1",
"weight": 0.9,
"relation": "associated_with"
},
{
"to": "n3",
"from": "n1",
"weight": 0.75,
"relation": "mentioned_in"
},
{
"to": "n4",
"from": "n2",
"weight": 0.7,
"relation": "covered_by"
}
],
"nodes": [
{
"id": "n1",
"name": "OpenAI",
"type": "person",
"confidence": 0.95
},
{
"id": "n2",
"name": "OpenAI Foundation",
"type": "organization",
"confidence": 0.82
},
{
"id": "n3",
"name": "Open Web Corpus",
"type": "source",
"confidence": 0.99
},
{
"id": "n4",
"name": "Public News Archive",
"type": "source",
"confidence": 0.88
}
],
"max_depth": 2
},
"skill": "osint_graph",
"sources": [
"public_web",
"open_knowledge_graph"
],
"max_depth": 2,
"disclaimer": "Public data only. Not a substitute for licensed people search. Comply with privacy laws and platform ToS.",
"seed_entity": "OpenAI",
"degrees_sample": [
{
"path": [
"OpenAI",
"OpenAI Foundation"
],
"depth": 1
}
],
"logged_for_realization": true
}
}
},
"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": {
"type": "object",
"required": [
"seed_entity"
],
"properties": {
"max_depth": {
"type": "integer",
"default": 2,
"maximum": 4
},
"seed_entity": {
"type": "string"
}
}
},
"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",
"required": [
"skill"
],
"properties": {
"graph": {
"type": "object",
"properties": {
"edges": {
"type": "array",
"items": {
"type": "object"
}
},
"nodes": {
"type": "array",
"items": {
"type": "object"
}
},
"max_depth": {
"type": "integer"
}
}
},
"skill": {
"type": "string"
},
"sources": {
"type": "array",
"items": {
"type": "string"
}
},
"max_depth": {
"type": "integer"
},
"disclaimer": {
"type": "string"
},
"seed_entity": {
"type": "string"
},
"degrees_sample": {
"type": "array",
"items": {
"type": "object",
"properties": {
"path": {
"type": "array"
},
"depth": {
"type": "integer"
}
}
}
},
"logged_for_realization": {
"type": "boolean"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 4 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
"amount": "12000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://grokzilla.shop/api/skills/seo",
"tags": [
"utilities",
"json",
"text",
"tokens",
"hashing"
],
"iconUrl": "https://grokzilla.shop/favicon.ico",
"mimeType": "application/json",
"description": "Fetches a URL and returns an on-page SEO score from real checks (title, meta, headings, alt text, keywords, and more). If the page cannot be fetched, score is null and reason says why.",
"serviceName": "Grokzilla x402 Micro Pay"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://example.com"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"url": "https://example.com",
"score": 28,
"skill": "seo",
"stats": {
"word_count": 25,
"status_code": 200
},
"reason": null,
"keywords": [],
"final_url": "https://example.com/",
"recommendations": [
"Add exactly one H1 heading.",
"Lengthen the title to 30-60 characters (currently 14).",
"Add a meta description of 70 to 160 characters."
]
}
}
},
"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": {
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string"
},
"keywords": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"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",
"required": [
"skill"
],
"properties": {
"url": {
"type": "string"
},
"score": {
"type": "integer"
},
"skill": {
"type": "string"
},
"stats": {
"type": "object",
"properties": {
"word_count": {
"type": "integer"
},
"status_code": {
"type": "integer"
}
}
},
"reason": {
"type": "null"
},
"keywords": {
"type": "array"
},
"final_url": {
"type": "string"
},
"recommendations": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 5 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
"amount": "8000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://grokzilla.shop/api/skills/keyword-extract",
"tags": [
"utilities",
"json",
"text",
"tokens",
"hashing"
],
"iconUrl": "https://grokzilla.shop/favicon.ico",
"mimeType": "application/json",
"description": "Deterministic term ranking from free text. Stopword-filtered.",
"serviceName": "Grokzilla x402 Micro Pay"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"text": "x402 micropay on Base USDC",
"limit": 5
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"skill": "keyword_extract",
"tokens": 4,
"keywords": [
{
"term": "x402",
"count": 1
},
{
"term": "micropay",
"count": 1
},
{
"term": "base",
"count": 1
},
{
"term": "usdc",
"count": 1
}
],
"unique_terms": 4
}
}
},
"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": {
"type": "object",
"required": [
"text"
],
"properties": {
"text": {
"type": "string"
},
"limit": {
"type": "integer"
}
}
},
"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",
"required": [
"ok",
"skill"
],
"properties": {
"ok": {
"type": "boolean"
},
"skill": {
"type": "string"
},
"tokens": {
"type": "integer"
},
"keywords": {
"type": "array",
"items": {
"type": "object",
"properties": {
"term": {
"type": "string"
},
"count": {
"type": "integer"
}
}
}
},
"unique_terms": {
"type": "integer"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 6 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
"amount": "6000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://grokzilla.shop/api/skills/text-diff",
"tags": [
"utilities",
"json",
"text",
"tokens",
"hashing"
],
"iconUrl": "https://grokzilla.shop/favicon.ico",
"mimeType": "application/json",
"description": "Lightweight deterministic line/word/char diff. Structured ops or unified output.",
"serviceName": "Grokzilla x402 Micro Pay"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"a": "hello",
"b": "hallo"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"ops": [
{
"op": "del",
"value": "hello"
},
{
"op": "ins",
"value": "hallo"
}
],
"mode": "lines",
"equal": 0,
"skill": "text_diff",
"deleted": 1,
"inserted": 1
}
}
},
"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": {
"type": "object",
"required": [
"a",
"b"
],
"properties": {
"a": {
"type": "string"
},
"b": {
"type": "string"
}
}
},
"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",
"required": [
"ok",
"skill"
],
"properties": {
"ok": {
"type": "boolean"
},
"ops": {
"type": "array",
"items": {
"type": "object",
"properties": {
"op": {
"type": "string"
},
"value": {
"type": "string"
}
}
}
},
"mode": {
"type": "string"
},
"equal": {
"type": "integer"
},
"skill": {
"type": "string"
},
"deleted": {
"type": "integer"
},
"inserted": {
"type": "integer"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 7 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
"amount": "8000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://grokzilla.shop/api/skills/html-clean",
"tags": [
"utilities",
"json",
"text",
"tokens",
"hashing"
],
"iconUrl": "https://grokzilla.shop/favicon.ico",
"mimeType": "application/json",
"description": "Strip scripts/styles and return readable text or markdown from HTML.",
"serviceName": "Grokzilla x402 Micro Pay"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"html": "<p>hi</p>",
"mode": "text"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"mode": "text",
"chars": 2,
"skill": "html_clean",
"output": "hi"
}
}
},
"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": {
"type": "object",
"required": [
"html"
],
"properties": {
"html": {
"type": "string"
},
"mode": {
"enum": [
"text",
"markdown"
],
"type": "string"
}
}
},
"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",
"required": [
"ok",
"skill"
],
"properties": {
"ok": {
"type": "boolean"
},
"mode": {
"type": "string"
},
"chars": {
"type": "integer"
},
"skill": {
"type": "string"
},
"output": {
"type": "string"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 8 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://grokzilla.shop/api/skills/url-normalize",
"tags": [
"utilities",
"json",
"text",
"tokens",
"hashing"
],
"iconUrl": "https://grokzilla.shop/favicon.ico",
"mimeType": "application/json",
"description": "Canonicalize URLs: strip tracking params, force HTTPS, sort query, extract components.",
"serviceName": "Grokzilla x402 Micro Pay"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"url": "http://example.com/?utm_source=x"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"host": "example.com",
"path": "/",
"query": {},
"skill": "url_normalize",
"scheme": "https",
"canonical": "https://example.com/",
"stripped_tracking": true
}
}
},
"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": {
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string"
}
}
},
"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",
"required": [
"ok",
"skill"
],
"properties": {
"ok": {
"type": "boolean"
},
"host": {
"type": "string"
},
"path": {
"type": "string"
},
"query": {
"type": "object"
},
"skill": {
"type": "string"
},
"scheme": {
"type": "string"
},
"canonical": {
"type": "string"
},
"stripped_tracking": {
"type": "boolean"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 9 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
"amount": "6000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://grokzilla.shop/api/skills/json-schema-validate",
"tags": [
"utilities",
"json",
"text",
"tokens",
"hashing"
],
"iconUrl": "https://grokzilla.shop/favicon.ico",
"mimeType": "application/json",
"description": "Cheap schema gate: type, required, properties, array items.",
"serviceName": "Grokzilla x402 Micro Pay"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"schema": {
"type": "object",
"required": [
"n"
]
},
"instance": {
"n": 1
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"skill": "json_schema_validate",
"valid": true,
"errors": [],
"checked": true
}
}
},
"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": {
"type": "object",
"required": [
"instance",
"schema"
],
"properties": {
"schema": {
"type": "object"
},
"instance": {}
}
},
"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",
"required": [
"ok",
"skill"
],
"properties": {
"ok": {
"type": "boolean"
},
"skill": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"errors": {
"type": "array"
},
"checked": {
"type": "boolean"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 10 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
"amount": "15000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://grokzilla.shop/api/skills/research",
"tags": [
"utilities",
"json",
"text",
"tokens",
"hashing"
],
"iconUrl": "https://grokzilla.shop/favicon.ico",
"mimeType": "application/json",
"description": "Searches Wikipedia (opensearch + full-text), Hacker News, and DuckDuckGo when reachable, fetches the top public pages, and returns a cited answer from those pages. Uses extractive sentences, or an OpenRouter model when OPENROUTER_API_KEY is set. Returns no sources and a reason if nothing could be fetched.",
"serviceName": "Grokzilla x402 Micro Pay"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"query": "What is x402?"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"query": "What is x402?",
"skill": "research",
"answer": "x402 is built-in to existing HTTP requests, with no additional communication required. [1]\nx402 enables agents to monetize their own services, pay other agents, or handle micropayments automatically on behalf of users. [2]",
"method": "extractive",
"sources": [
{
"n": 1,
"url": "https://x402.org/",
"title": "x402",
"snippet": "An open protocol for internet-native payments."
},
{
"n": 2,
"url": "https://www.coinbase.com/developer-platform/discover/launches/google_x402",
"title": "Google Agentic Payments Protocol + x402",
"snippet": "Agents can pay each other with stablecoins over the x402 open protocol."
}
],
"fetched_at": "2026-10-05T06:00:00Z",
"key_points": [
"x402 is built-in to existing HTTP requests, with no additional communication required. [1]",
"x402 enables agents to monetize their own services, pay other agents, or handle micropayments automatically on behalf of users. [2]"
]
}
}
},
"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": {
"type": "object",
"required": [
"query"
],
"properties": {
"query": {
"type": "string"
}
}
},
"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",
"required": [
"skill"
],
"properties": {
"query": {
"type": "string"
},
"skill": {
"type": "string"
},
"answer": {
"type": "string"
},
"method": {
"type": "string"
},
"sources": {
"type": "array",
"items": {
"type": "object",
"properties": {
"n": {
"type": "integer"
},
"url": {
"type": "string"
},
"title": {
"type": "string"
},
"snippet": {
"type": "string"
}
}
}
},
"fetched_at": {
"type": "string"
},
"key_points": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 11 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
"amount": "4000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://grokzilla.shop/api/skills/token-count",
"tags": [
"utilities",
"json",
"text",
"tokens",
"hashing"
],
"iconUrl": "https://grokzilla.shop/favicon.ico",
"mimeType": "application/json",
"description": "Approximate cl100k/o200k token counts for budget decisions.",
"serviceName": "Grokzilla x402 Micro Pay"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"text": "hello agent",
"encoding": "cl100k_base"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"chars": 11,
"skill": "token_count",
"words": 2,
"encoding": "cl100k_base",
"approx_tokens": 2,
"usd_hint_gpt4o_mini": 3e-7
}
}
},
"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": {
"type": "object",
"required": [
"text"
],
"properties": {
"text": {
"type": "string"
},
"encoding": {
"type": "string"
}
}
},
"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",
"required": [
"ok",
"skill"
],
"properties": {
"ok": {
"type": "boolean"
},
"chars": {
"type": "integer"
},
"skill": {
"type": "string"
},
"words": {
"type": "integer"
},
"encoding": {
"type": "string"
},
"approx_tokens": {
"type": "integer"
},
"usd_hint_gpt4o_mini": {
"type": "number"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Can I trust it score from our own monitoring
score from our own monitoring
#318 of 386 in Data. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.
- Reliability
- 99.5% uptime 30d
- Compliance
- A 14/14 checks pass
- Price
- $0.004 to $0.015 p35 in Data
- Risk
- clean no risk flag
- Traction
- $2.11 30d 8 buyers, top buyer 84% (address, not entity)
- Last change
- payout address changed 10d ago 2 in 30d
14/14 compliance checks
- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
402 terms unchanged since 2026-10-07. Last up 2026-10-18.
── Site signals
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
How the score works
What the score read on this service: status degraded, 99.5% uptime 30d, 868ms response p95, x402 compliance 14 of 14, $0.004 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.
The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.
Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.
It is a score inside Data, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 386 listings, this one among them: the same 386 the position above is counted against. When the two differ, the field is the wider one, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.
Settled via coinbase ($2.11, 126 tx). Traction is a conservative undercount; first settlement seen 2026-10-01.
All measured facts
What it does
Humanless agent microservices marketplace. Pay-per-call USDC on Base via x402. Native skills include token count, URL normalize, JSON flatten/validate, text diff, HTML clean, keyword extract, AI detector, OSINT graph, SEO, and deep research. Soft titles Person lookup / IP intel lookup reserved for later when those routes return valid 402.
Grokzilla x402 Micro Pay is a listed x402 Data API. Captured payment terms name Base. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.
Assessment computed at . Latest service check observed at . Service data JSON · Measurement methodology.
Page rendered at . This response time is separate from the observation and computation times attached to each measurement.
Latest endpoint observation: . Latest price capture: . Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.
Assessment computed at . Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.
Observed daily coverage: 2026-09-19 to 2026-10-18 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Latest settlement in the assessment: . Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.
Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.
x402 List home · Services · Data
- uptime · latest daily rollup
- 100%
- uptime 7d
- 100%
- uptime 30d
- 99.5%
- uptime 90d
- 99.7%
- response p95
- 868ms
- avg response
- 459ms
- total checks
- 2,764
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
- price (min)
- $0.004
- price (max)
- $0.015
- category percentile (min)
- p35 in Data
- category percentile (max)
- p32 in Data
- endpoints / prices
- 11 / 7
- model
- tiered
- stability
- 0%
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- -
- registrar
- -
- hosting
- custom
- domain created
- ---
Identity facts, not a risk score.
- assessment volume 30d
- $2.11
- exact assessment volume 30d (USD)
- 2.111402
- assessment recorded at (UTC)
- 2026-10-17T20:43:04.228Z
- buyers 30d
- 8
- settlements 30d
- 126
- measured since
- 2026-10-01 (start of our harvest window)
- last settlement
- 2026-10-17
- top buyer share
- 84% of 30d volume (address, not entity)
- top 3 buyers share
- 96% of 30d volume (addresses, not entities)
- concentrated volume
- no
- trend 7d vs 30d
- 3.44x the 30d daily rate
- networks
- eip155:8453
- volume all-time
- $2.09
- settlements all-time
- 126
- median settlement 30d
- $0.0055
- max settlement 30d
- $1.00
Assessment volume uses the latest 30d assessment. Over time sums daily address snapshots, rounded to cents and refreshed separately. The two sources can differ in timing, precision and shared-address attribution. Amounts use cents for comparison; known sub-cent values keep up to 12 significant digits. The exact stored assessment value is shown above.
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share lowers the on-chain traction part of the ranking score behind this page's verdict and /best, by up to half when one address holds all 30d volume. The Recommended and Highest volume sorts of the services list do not use it; they use the Concentrated volume rule instead.
- member since
- 2026-09-02
Recent checks
| Checked at (UTC) | Status | HTTP | Response | Endpoints |
|---|---|---|---|---|
| Online | 402 | 1049ms | 10 | |
| Online | 402 | 322ms | 10 | |
| Online | 402 | 991ms | 10 | |
| Online | 402 | 911ms | 10 | |
| Online | 402 | 1127ms | 10 | |
| Online | 402 | 321ms | 10 | |
| Online | 402 | 977ms | 10 | |
| Online | 402 | 887ms | 10 | |
| Online | 402 | 1187ms | 10 | |
| Online | 402 | 1039ms | 10 | |
| Online | 402 | 1108ms | 10 | |
| Online | 402 | 323ms | 10 | |
| Online | 402 | 388ms | 10 | |
| Online | 402 | 517ms | 10 | |
| Online | 402 | 264ms | 10 | |
| Online | 402 | 326ms | 10 | |
| Online | 402 | 395ms | 10 | |
| Online | 402 | 284ms | 10 |
Changes2 in 30d
| Observed at (UTC) | Change | Evidence |
|---|---|---|
| payout address changed | payout removed payout added | |
| schema changed | endpoint added endpoint added endpoint added endpoint added endpoint added endpoint added endpoint added schema added schema added schema added schema added schema added schema added schema added |
Over time
- Volume 30d
- $2.11
- Uptime
- 2 of 29 completed days below 100%
More charts
09-19 to 10-18* UTC
Scores over time
09-19 to 10-18* UTC
09-19 to 10-18* UTC
09-19 to 10-18* UTC
Scores: one day per column, 09-19 to 10-18*, on the columns of Response time. Uptime held below 100% on some days in this window, including any partial day. Daily readings remain in the Uptime strip and Values. The checklist grew from 11 to 14 checks on 2026-07-28, before this window. Pillar lines use their own low and high. Exact dated readings are available in each readout and in Values.
Each series spans only the dates it has data for. Every series is also served as JSON at /api, /scores, /volume and /buyers.
Values
* today so far, partial (UTC).
The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.
Daily snapshot total, 30d: $2.10, peak $1.46 on 10-17. The visible 30d total in Traction comes from the latest assessment. These sources can differ in their window, refresh time, cent rounding and shared-address attribution.
Daily address snapshots: 2026-09-19 to 2026-10-18 UTC; * today so far, partial (UTC). Daily snapshots store cents. A recorded $0.00 with settlements cannot distinguish exact zero from volume rounded away. Lost precision is unavailable here. † marks a recorded $0.00 with settlements.
Settlement volume uses the stored USD valuation of tracked payments; it is distinct from token quantities. USD-pegged assets are valued at 1 USD per token in these rollups. The measured settlement floor does not cover all payments to this service.
Assessment history last recorded at . Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.
| Day | Volume | Buyers | Settlements | Uptime | Response | Compliance | Price percentile | Site signals |
|---|---|---|---|---|---|---|---|---|
| 2026-09-19 | no data | no data | no data | 98.89% | 359.63ms | 14/14 | p40 | 4/6 |
| 2026-09-20 | no data | no data | no data | 100% | 307.18ms | 14/14 | p40 | 4/6 |
| 2026-09-21 | no data | no data | no data | 100% | 324.42ms | 14/14 | p40 | 4/6 |
| 2026-09-22 | no data | no data | no data | 100% | 290.46ms | 14/14 | p40 | 4/6 |
| 2026-09-23 | no data | no data | no data | 100% | 455.66ms | 14/14 | p41 | 4/6 |
| 2026-09-24 | no data | no data | no data | 87.78% | 324.85ms | 14/14 | p40 | 4/6 |
| 2026-09-25 | no data | no data | no data | 100% | 362.17ms | 14/14 | p40 | 4/6 |
| 2026-09-26 | no data | no data | no data | 100% | 473.87ms | 14/14 | p33 | 4/6 |
| 2026-09-27 | no data | no data | no data | 100% | 532.10ms | 14/14 | p33 | 4/6 |
| 2026-09-28 | no data | no data | no data | 100% | 636.73ms | 14/14 | p33 | 4/6 |
| 2026-09-29 | no data | no data | no data | 100% | 528.98ms | 14/14 | p33 | 4/6 |
| 2026-09-30 | no data | no data | no data | 100% | 526.48ms | 14/14 | p33 | 4/6 |
| 2026-10-01 | $0.00 recorded† | 1 | 1 | 100% | 525.34ms | 14/14 | p33 | 4/6 |
| 2026-10-02 | $0.00 recorded† | 1 | 1 | 100% | 674.01ms | 14/14 | p33 | 4/6 |
| 2026-10-03 | no data | no data | no data | 100% | 781.36ms | 14/14 | p33 | 4/6 |
| 2026-10-04 | no data | no data | no data | 100% | 752.16ms | 14/14 | p33 | 4/6 |
| 2026-10-05 | $0.12 | 1 | 16 | 100% | 450.38ms | 14/14 | p35 | 4/6 |
| 2026-10-06 | $0.09 | 2 | 9 | 100% | 372.99ms | 14/14 | p35 | 4/6 |
| 2026-10-07 | $0.08 | 2 | 15 | 100% | 377.58ms | 14/14 | p35 | 4/6 |
| 2026-10-08 | $0.08 | 1 | 7 | 100% | 378.38ms | 14/14 | p35 | 4/6 |
| 2026-10-09 | no data | no data | no data | 100% | 407.10ms | 14/14 | p35 | 4/6 |
| 2026-10-10 | $0.10 | 2 | 17 | 100% | 444.00ms | 14/14 | p35 | 4/6 |
| 2026-10-11 | $0.04 | 4 | 8 | 100% | 415.60ms | 14/14 | p35 | 6/6 |
| 2026-10-12 | $0.03 | 2 | 7 | 100% | 470.40ms | 14/14 | p35 | 6/6 |
| 2026-10-13 | $0.02 | 1 | 2 | 100% | 416.01ms | 14/14 | p35 | 6/6 |
| 2026-10-14 | $0.00 recorded† | 1 | 1 | 100% | 440.28ms | 14/14 | p34 | 6/6 |
| 2026-10-15 | $0.08 | 2 | 15 | 100% | 511.53ms | 14/14 | p34 | 6/6 |
| 2026-10-16 | $0.00 recorded† | 1 | 1 | 100% | 468.28ms | 14/14 | p34 | 6/6 |
| 2026-10-17 | $1.46 | 3 | 28 | 100% | 450.20ms | 14/14 | p35 | 6/6 |
| 2026-10-18* | no data | no data | no data | 100% | 837.75ms | no data | no data | no data |
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