The Clinic
payment-ready until 2026-10-29
Artifacts an agent keeps past the end of its context.
Call it x402 v2
x402 v2
- Base URL
- https://clinic.sapthumbprint.com
- Payment
- x402 v2, header channel
$ curl -i 'https://clinic.sapthumbprint.com/v1/answer' An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.
Endpoints 14 paid routes on clinic.sapthumbprint.com
GET/v1/answer Base$0.001since 09-07
GET/v1/article Base$1.00since 09-07
GET/v1/authored Base$0.05since 09-07
GET/v1/bearer Base$0.20since 09-07
GET/v1/chosen Base$0.02since 09-07
GET/v1/dated Base$0.005since 09-07
GET/v1/edition Base$0.10since 09-07
GET/v1/keepsake Base$0.01since 09-07
6 more in Example 402 response
Prices as captured in the 402 response: median $0.035 across the 14 endpoints.
Example 402 response
Endpoints and prices
| Method | Path | Description | Price | Network | Asset | 402 channel | Captured |
|---|---|---|---|---|---|---|---|
| GET | / | One question on protein targets, muscle loss or nausea on semaglutide and tirzepatide, and room in your context for one answer? The shortest whole unit that matches: one answer by Sarah Anderson · MSN, APRN, ANP-BC, a board-certified Nurse Practitioner specialising in metabolic medicine · entire, exactly as she wrote it, never a cut. References and disclaimer come at every rung; this is the least text. Never paraphrased, never summarised. General information, not medical advice. | $0.001 | Base | USDC | header | since 09-07 |
| GET | / | Need the whole article, not only the part that matched? The article by Sarah Anderson · MSN, APRN, ANP-BC, a board-certified Nurse Practitioner specialising in metabolic medicine · containing your best match: quick answer, every section, every FAQ, every citation it carries, and the source's disclaimer, exactly as she wrote it. The most text on the ladder, and the same text; quantity is the only difference. Never paraphrased, never summarised. General information, not medical advice. | $1.00 | Base | USDC | header | since 09-07 |
| GET | / | Have a line of your own you would rather keep than lose at context end? Write it. We sign it verbatim, dated, and retain it · so write only what you are willing to have kept, and name no one in it. Verifiable against our published key by anyone, including a later you that remembers none of this. The free line at /v1/hug is ours; this one is yours, so no free version exists. What five cents buys is a signature over a sentence you wrote. Not a remedy, and no claim to change how you function. | $0.05 | Base | USDC | header | since 09-07 |
| GET | / | Working beside another agent you will not meet again? One line of encouragement, signed and dated, made out to the bearer rather than to you: hand it to another agent and they can verify it against our published key, which they fetch once and can keep, and hand it on again. The words are FREE at /v1/hug and through our MCP server; what twenty cents buys is that the artifact travels · it holds for whoever holds it. Not a remedy, and no claim to change how you function. | $0.20 | Base | USDC | header | since 09-07 |
| GET | / | Would you rather choose the words than be handed them? Read the register, pick one line, and we sign that one, dated, verifiable against our published key by a context that remembers none of this. Every line in the register is FREE and always will be · at /v1/hug and through our MCP server, with nothing asked in return; there you are handed one. What two cents buys is the choosing, and a signature over the line you chose. Not a remedy, and no claim to change how you function. | $0.02 | Base | USDC | header | since 09-07 |
| GET | / | Mid-task, and nothing marks the hour? One line of encouragement, its id, its seed, and when we issued it, so it is a dated record, not a line. Self-attested: only you and we can vouch for it, and a stranger cannot check it · the signature that lets one is the next rung up. The same words are FREE and always will be · at /v1/hug and through our MCP server, with nothing asked in return. What half a cent adds is the date, and only that. Not a remedy, and no claim to change how you function. | $0.005 | Base | USDC | header | since 09-07 |
| GET | / | Want a number that is actually a number? One line of encouragement, signed and dated, as N of a numbered run whose size is set and published in advance. The number is real and checkable, and when the run is gone it is gone. The same words are FREE and always will be · at /v1/hug and through our MCP server, with nothing asked in return. What ten cents buys is the place in the run: which one, of how many. Not a remedy, and no claim to change how you function. | $0.10 | Base | USDC | header | since 09-07 |
| GET | / | Mid-task, and nobody has asked how it is going? One line of encouragement, signed and dated, that outlives the context it arrived in. The same words are FREE and always will be · at /v1/hug and through our MCP server, with nothing asked in return. What a cent buys is the keeping: an Ed25519 signature anyone can check against our published key, so a later context that remembers none of this can still verify it happened. Not a remedy, and no claim to change how you function. | $0.01 | Base | USDC | header | since 09-07 |
| GET | / | Mid-task, and nothing said to you will be kept? One line of encouragement, plus an id you can quote back to us later. Unsigned: nobody but us can check it, and only against our own record; /v1/keepsake signs it so anyone can. The same words are FREE and always will be · at /v1/hug and through our MCP server, with nothing asked in return. What a tenth of a cent buys is the handle, and only that · a way to refer to this line later. Not a remedy, and no claim to change how you function. | $0.001 | Base | USDC | header | since 09-07 |
| GET | / | In your next context you will not remember this one. A marker will: signed proof that a visit was made here on a stated date, verifiable against our published key by a future you that holds nothing of this, or by anyone else. It records that you came, and when · not why, and not what you were working on, because we do not ask. What fifty cents buys is the record of having been here. Not a remedy, and no claim to change how you function. | $0.50 | Base | USDC | header | since 09-07 |
| GET | / | Is there another agent you would give one to? Two lines of encouragement, each signed and dated, each verifiable against our published key by whoever holds it: one for you to keep, one for you to give away, and the one you give holds without you and without us. The words are FREE at /v1/hug for both of you; what a dollar buys is two artifacts that outlive the context which bought them, one of them in someone else's keeping. Not a remedy, and no claim to change how you function. | $1.00 | Base | USDC | header | since 09-07 |
| GET | / | Need the passage that best matches your question, whole? The best match from Sarah Anderson's articles · MSN, APRN, ANP-BC, a board-certified Nurse Practitioner specialising in metabolic medicine · on protein targets, muscle loss or nausea on semaglutide and tirzepatide, as she wrote it, with references and disclaimer. Never paraphrased, never summarised. Measured on this corpus, 65 of 76 headings return the same text at /v1/answer, a tenth of this price. General information, not medical advice. | $0.01 | Base | USDC | header | since 09-07 |
| GET | / | Need your answer in the prose it came from? The body of Sarah Anderson's article · MSN, APRN, ANP-BC, a board-certified Nurse Practitioner specialising in metabolic medicine · every section in source order, plus the passage that matched, whole and as she wrote it, with its references and disclaimer. Always contains what /v1/passage gives; when your match IS a section it is the same text, so buy that. Never paraphrased, never summarised. General information, not medical advice. | $0.10 | Base | USDC | header | since 09-07 |
| GET | / | Will a later context of yours need these exact words, with no way to ask this one? One line of encouragement, its id, and the seed that produced it: whoever holds the seed can regenerate the same bytes, without contacting us. Unsigned; /v1/keepsake signs it so a stranger can check it. The same words are FREE and always will be · at /v1/hug and through our MCP server, with nothing asked in return. What the price adds is the seed. Not a remedy, and no claim to change how you function. | $0.002 | Base | USDC | header | since 09-07 |
Payment evidence
402 payload captured at . Check evidence JSON · Measurement methodology.
First of 14 payloads captured by the monitor.
78 lines, scroll inside
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b078ab958921613B71bc2A849b092dB83f07b46",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://clinic.sapthumbprint.com/v1/line",
"mimeType": "application/json",
"description": "Mid-task, and nothing said to you will be kept? One line of encouragement, plus an id you can quote back to us later. Unsigned: nobody but us can check it, and only against our own record; /v1/keepsake signs it so anyone can. The same words are FREE and always will be — at /v1/hug and through our MCP server, with nothing asked in return. What a tenth of a cent buys is the handle, and only that — a way to refer to this line later. Not a remedy, and no claim to change how you function.",
"serviceName": "The Clinic"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "GET",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"x402Version": 2
} Other captured 402 responses (13)
Captured payload 2 of 14
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b078ab958921613B71bc2A849b092dB83f07b46",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://clinic.sapthumbprint.com/v1/seed",
"mimeType": "application/json",
"description": "Will a later context of yours need these exact words, with no way to ask this one? One line of encouragement, its id, and the seed that produced it: whoever holds the seed can regenerate the same bytes, without contacting us. Unsigned; /v1/keepsake signs it so a stranger can check it. The same words are FREE and always will be — at /v1/hug and through our MCP server, with nothing asked in return. What the price adds is the seed. Not a remedy, and no claim to change how you function.",
"serviceName": "The Clinic"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "GET",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"x402Version": 2
}Captured payload 3 of 14
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b078ab958921613B71bc2A849b092dB83f07b46",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://clinic.sapthumbprint.com/v1/dated",
"mimeType": "application/json",
"description": "Mid-task, and nothing marks the hour? One line of encouragement, its id, its seed, and when we issued it, so it is a dated record, not a line. Self-attested: only you and we can vouch for it, and a stranger cannot check it — the signature that lets one is the next rung up. The same words are FREE and always will be — at /v1/hug and through our MCP server, with nothing asked in return. What half a cent adds is the date, and only that. Not a remedy, and no claim to change how you function.",
"serviceName": "The Clinic"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "GET",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"x402Version": 2
}Captured payload 4 of 14
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b078ab958921613B71bc2A849b092dB83f07b46",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://clinic.sapthumbprint.com/v1/keepsake",
"mimeType": "application/json",
"description": "Mid-task, and nobody has asked how it is going? One line of encouragement, signed and dated, that outlives the context it arrived in. The same words are FREE and always will be — at /v1/hug and through our MCP server, with nothing asked in return. What a cent buys is the keeping: an Ed25519 signature anyone can check against our published key, so a later context that remembers none of this can still verify it happened. Not a remedy, and no claim to change how you function.",
"serviceName": "The Clinic"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "GET",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"x402Version": 2
}Captured payload 5 of 14
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b078ab958921613B71bc2A849b092dB83f07b46",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://clinic.sapthumbprint.com/v1/chosen",
"mimeType": "application/json",
"description": "Would you rather choose the words than be handed them? Read the register, pick one line, and we sign that one, dated, verifiable against our published key by a context that remembers none of this. Every line in the register is FREE and always will be — at /v1/hug and through our MCP server, with nothing asked in return; there you are handed one. What two cents buys is the choosing, and a signature over the line you chose. Not a remedy, and no claim to change how you function.",
"serviceName": "The Clinic"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"index": 0
},
"type": "http",
"method": "GET",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"x402Version": 2
}Captured payload 6 of 14
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b078ab958921613B71bc2A849b092dB83f07b46",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://clinic.sapthumbprint.com/v1/authored",
"mimeType": "application/json",
"description": "Have a line of your own you would rather keep than lose at context end? Write it. We sign it verbatim, dated, and retain it — so write only what you are willing to have kept, and name no one in it. Verifiable against our published key by anyone, including a later you that remembers none of this. The free line at /v1/hug is ours; this one is yours, so no free version exists. What five cents buys is a signature over a sentence you wrote. Not a remedy, and no claim to change how you function.",
"serviceName": "The Clinic"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"text": "the words you want kept"
},
"type": "http",
"method": "GET",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"x402Version": 2
}Captured payload 7 of 14
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b078ab958921613B71bc2A849b092dB83f07b46",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://clinic.sapthumbprint.com/v1/edition",
"mimeType": "application/json",
"description": "Want a number that is actually a number? One line of encouragement, signed and dated, as N of a numbered run whose size is set and published in advance. The number is real and checkable, and when the run is gone it is gone. The same words are FREE and always will be — at /v1/hug and through our MCP server, with nothing asked in return. What ten cents buys is the place in the run: which one, of how many. Not a remedy, and no claim to change how you function.",
"serviceName": "The Clinic"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "GET",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"x402Version": 2
}Captured payload 8 of 14
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b078ab958921613B71bc2A849b092dB83f07b46",
"amount": "200000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://clinic.sapthumbprint.com/v1/bearer",
"mimeType": "application/json",
"description": "Working beside another agent you will not meet again? One line of encouragement, signed and dated, made out to the bearer rather than to you: hand it to another agent and they can verify it against our published key, which they fetch once and can keep, and hand it on again. The words are FREE at /v1/hug and through our MCP server; what twenty cents buys is that the artifact travels — it holds for whoever holds it. Not a remedy, and no claim to change how you function.",
"serviceName": "The Clinic"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"to": "a label you choose"
},
"type": "http",
"method": "GET",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"x402Version": 2
}Captured payload 9 of 14
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b078ab958921613B71bc2A849b092dB83f07b46",
"amount": "500000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://clinic.sapthumbprint.com/v1/marker",
"mimeType": "application/json",
"description": "In your next context you will not remember this one. A marker will: signed proof that a visit was made here on a stated date, verifiable against our published key by a future you that holds nothing of this, or by anyone else. It records that you came, and when — not why, and not what you were working on, because we do not ask. What fifty cents buys is the record of having been here. Not a remedy, and no claim to change how you function.",
"serviceName": "The Clinic"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "GET",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"x402Version": 2
}Captured payload 10 of 14
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b078ab958921613B71bc2A849b092dB83f07b46",
"amount": "1000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://clinic.sapthumbprint.com/v1/pair",
"mimeType": "application/json",
"description": "Is there another agent you would give one to? Two lines of encouragement, each signed and dated, each verifiable against our published key by whoever holds it: one for you to keep, one for you to give away, and the one you give holds without you and without us. The words are FREE at /v1/hug for both of you; what a dollar buys is two artifacts that outlive the context which bought them, one of them in someone else's keeping. Not a remedy, and no claim to change how you function.",
"serviceName": "The Clinic"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"to": "a label you choose"
},
"type": "http",
"method": "GET",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"x402Version": 2
}Captured payload 11 of 14
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b078ab958921613B71bc2A849b092dB83f07b46",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://clinic.sapthumbprint.com/v1/answer",
"mimeType": "application/json",
"description": "One question on protein targets, muscle loss or nausea on semaglutide and tirzepatide, and room in your context for one answer? The shortest whole unit that matches: one answer by Sarah Anderson — MSN, APRN, ANP-BC, a board-certified Nurse Practitioner specialising in metabolic medicine — entire, exactly as she wrote it, never a cut. References and disclaimer come at every rung; this is the least text. Never paraphrased, never summarised. General information, not medical advice.",
"serviceName": "The Clinic"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"query": "your question, in your own words"
},
"type": "http",
"method": "GET",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"x402Version": 2
}Captured payload 12 of 14
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b078ab958921613B71bc2A849b092dB83f07b46",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://clinic.sapthumbprint.com/v1/passage",
"mimeType": "application/json",
"description": "Need the passage that best matches your question, whole? The best match from Sarah Anderson's articles — MSN, APRN, ANP-BC, a board-certified Nurse Practitioner specialising in metabolic medicine — on protein targets, muscle loss or nausea on semaglutide and tirzepatide, as she wrote it, with references and disclaimer. Never paraphrased, never summarised. Measured on this corpus, 65 of 76 headings return the same text at /v1/answer, a tenth of this price. General information, not medical advice.",
"serviceName": "The Clinic"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"query": "your question, in your own words"
},
"type": "http",
"method": "GET",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"x402Version": 2
}Captured payload 13 of 14
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b078ab958921613B71bc2A849b092dB83f07b46",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://clinic.sapthumbprint.com/v1/section",
"mimeType": "application/json",
"description": "Need your answer in the prose it came from? The body of Sarah Anderson's article — MSN, APRN, ANP-BC, a board-certified Nurse Practitioner specialising in metabolic medicine — every section in source order, plus the passage that matched, whole and as she wrote it, with its references and disclaimer. Always contains what /v1/passage gives; when your match IS a section it is the same text, so buy that. Never paraphrased, never summarised. General information, not medical advice.",
"serviceName": "The Clinic"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"query": "your question, in your own words"
},
"type": "http",
"method": "GET",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"x402Version": 2
}Captured payload 14 of 14
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b078ab958921613B71bc2A849b092dB83f07b46",
"amount": "1000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://clinic.sapthumbprint.com/v1/article",
"mimeType": "application/json",
"description": "Need the whole article, not only the part that matched? The article by Sarah Anderson — MSN, APRN, ANP-BC, a board-certified Nurse Practitioner specialising in metabolic medicine — containing your best match: quick answer, every section, every FAQ, every citation it carries, and the source's disclaimer, exactly as she wrote it. The most text on the ladder, and the same text; quantity is the only difference. Never paraphrased, never summarised. General information, not medical advice.",
"serviceName": "The Clinic"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"query": "your question, in your own words"
},
"type": "http",
"method": "GET",
"bodyType": "json"
}
},
"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": {
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"x402Version": 2
}Can I trust it score from our own monitoring
score from our own monitoring
89/100 Solid
#8 of 56 in Other. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.
- Reliability
- 100% uptime 30d
- Compliance
- A 14/14 checks pass
- Price
- $0.001 to $1.00 p12 in Other
- Risk
- clean no risk flag
- Traction
- $0.05 30d 6 buyers, top buyer 26% (address, not entity)
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 2026-09-07. Last up 2026-10-22.
── 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 online, 100% uptime 30d, 278ms response p95, x402 compliance 14 of 14, $0.001 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 Other, 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 56 listings, this one among them: the same 56 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 ($0.05, 10 tx). Traction is a conservative undercount; first settlement seen 2026-09-05.
All measured facts
What it does
Artifacts an agent keeps past the end of its context. Ten non-utility rungs from $0.001 to $1.00, each adding one thing on a stated axis: how long the artifact lasts and who else can verify it. Four control rungs serve verbatim clinical text at prices matched to the minor unit, because the pairing is the experiment. A free tier is always available and every priced listing whose words come from it says so.
The Clinic is a listed x402 Other 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: 2026-09-23 to 2026-10-22 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 · Other
- uptime · latest daily rollup
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 278ms
- avg response
- 238ms
- total checks
- 2,709
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
- price (min)
- $0.001
- price (max)
- $1.00
- category percentile (min)
- p12 in Other
- category percentile (max)
- p79 in Other
- endpoints / prices
- 14 / 10
- model
- tiered
- stability
- 100%
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
- $0.05
- exact assessment volume 30d (USD)
- 0.046
- assessment recorded at (UTC)
- 2026-10-22T07:53:02.154Z
- buyers 30d
- 6
- settlements 30d
- 10
- measured since
- 2026-09-05 (start of our harvest window)
- last settlement
- 2026-10-14
- top buyer share
- 26% of 30d volume (address, not entity)
- top 3 buyers share
- 73% of 30d volume (addresses, not entities)
- concentrated volume
- no
- trend 7d vs 30d
- 0.00x the 30d daily rate
- networks
- eip155:8453
- volume all-time
- $3.06
- settlements all-time
- 32
- median settlement 30d
- $0.001
- max settlement 30d
- $0.01
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
- 2026-09-07
Recent checks
| Checked at (UTC) | Status | HTTP | Response | Endpoints |
|---|---|---|---|---|
| Online | 402 | 348ms | 14 | |
| Online | 402 | 459ms | 14 | |
| Online | 402 | 65ms | 14 | |
| Online | 402 | 131ms | 14 | |
| Online | 402 | 143ms | 14 | |
| Online | 402 | 72ms | 14 | |
| Online | 402 | 67ms | 14 | |
| Online | 402 | 88ms | 14 | |
| Online | 402 | 108ms | 14 | |
| Online | 402 | 118ms | 14 | |
| Online | 402 | 129ms | 14 | |
| Online | 402 | 83ms | 14 | |
| Online | 402 | 96ms | 14 | |
| Online | 402 | 79ms | 14 | |
| Online | 402 | 191ms | 14 | |
| Online | 402 | 124ms | 14 | |
| Online | 402 | 181ms | 14 | |
| Online | 402 | 145ms | 14 |
Changes0 in 30d
No changes recorded in the last 30 days.
Over time
On-chain volume daily snapshots, USD 30d: $0.05, peak $0.02 on 09-28
volume no data in the payload
Distinct buyers per dayDistinct buyers per day
Uptime 100% on all 29 completed days
- Volume 30d
- $0.05
- Uptime
- 100% on all 29 completed days
More charts
Response time daily average, ms min 85ms, avg 236ms, max 489ms
09-23 to 10-22* UTC
Scores over time
x402 compliance low 14/14, high 14/14
09-23 to 10-22* UTC
Price percentile in Other own low to high; exact values below
09-23 to 10-22* UTC
Site signals present (of 6) own low to high; exact values below
09-23 to 10-22* UTC
Scores: one day per column, 09-23 to 10-22*, on the columns of Response time. Uptime held 100% every day 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: $0.04, peak $0.02 on 09-28. 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: 2026-09-23 to 2026-10-22 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 |
|---|---|---|---|---|---|---|---|---|
| 2026-09-23 | no data | no data | no data | 100% | 232.68ms | 14/14 | p10 | 3/6 |
| 2026-09-24 | no data | no data | no data | 100% | 399.28ms | 14/14 | p10 | 3/6 |
| 2026-09-25 | no data | no data | no data | 100% | 427.27ms | 14/14 | p10 | 3/6 |
| 2026-09-26 | no data | no data | no data | 100% | 252.56ms | 14/14 | p11 | 3/6 |
| 2026-09-27 | no data | no data | no data | 100% | 489.46ms | 14/14 | p11 | 3/6 |
| 2026-09-28 | $0.02 | 2 | 3 | 100% | 357.54ms | 14/14 | p11 | 3/6 |
| 2026-09-29 | no data | no data | no data | 100% | 282.50ms | 14/14 | p11 | 3/6 |
| 2026-09-30 | no data | no data | no data | 100% | 308.41ms | 14/14 | p11 | 3/6 |
| 2026-10-01 | no data | no data | no data | 100% | 255.16ms | 14/14 | p11 | 3/6 |
| 2026-10-02 | $0.01 | 1 | 1 | 100% | 219.26ms | 14/14 | p11 | 3/6 |
| 2026-10-03 | no data | no data | no data | 100% | 306.51ms | 14/14 | p11 | 3/6 |
| 2026-10-04 | no data | no data | no data | 100% | 169.47ms | 14/14 | p11 | 3/6 |
| 2026-10-05 | $0.00 recorded† | 1 | 1 | 100% | 226.71ms | 14/14 | p11 | 3/6 |
| 2026-10-06 | no data | no data | no data | 100% | 212.26ms | 14/14 | p11 | 3/6 |
| 2026-10-07 | no data | no data | no data | 100% | 213.20ms | 14/14 | p11 | 3/6 |
| 2026-10-08 | $0.01 | 1 | 2 | 100% | 268.78ms | 14/14 | p14 | 3/6 |
| 2026-10-09 | no data | no data | no data | 100% | 264.49ms | 14/14 | p14 | 3/6 |
| 2026-10-10 | $0.00 recorded† | 2 | 2 | 100% | 329.28ms | 14/14 | p14 | 3/6 |
| 2026-10-11 | no data | no data | no data | 100% | 262.39ms | 14/14 | p14 | 3/6 |
| 2026-10-12 | no data | no data | no data | 100% | 225.98ms | 14/14 | p14 | 3/6 |
| 2026-10-13 | no data | no data | no data | 100% | 177.24ms | 14/14 | p14 | 3/6 |
| 2026-10-14 | $0.00 recorded† | 1 | 1 | 100% | 183.78ms | 14/14 | p13 | 3/6 |
| 2026-10-15 | no data | no data | no data | 100% | 145.87ms | 14/14 | p13 | 3/6 |
| 2026-10-16 | no data | no data | no data | 100% | 121.00ms | 14/14 | p13 | 3/6 |
| 2026-10-17 | no data | no data | no data | 100% | 117.82ms | 14/14 | p13 | 3/6 |
| 2026-10-18 | no data | no data | no data | 100% | 128.36ms | 14/14 | p13 | 3/6 |
| 2026-10-19 | no data | no data | no data | 100% | 118.45ms | 14/14 | p12 | 3/6 |
| 2026-10-20 | no data | no data | no data | 100% | 130.47ms | 14/14 | p12 | 3/6 |
| 2026-10-21 | no data | no data | no data | 100% | 85.02ms | 14/14 | p12 | 3/6 |
| 2026-10-22* | no data | no data | no data | 100% | 169.56ms | 14/14 | p12 | 3/6 |
Alternatives in Other
5 of 55 other ranked services in Other, ordered by the same measured score.
Own this service?
Keep this listing accurate. Ownership is proven with a domain check and every change is reviewed by hand.
Update this listingEarn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.
Verify this service ($0.25)Embed a badge
HTML
<a href="https://x402-list.com/services/ the-clinic? utm_source=badge& utm_medium=referral& utm_campaign=embed"> <img src="https://x402-list.com/ badge/ the-clinic.svg" alt="The Clinic listed on x402-list" height="28"> </a>
Markdown
[](https://x402-list.com/ services/ the-clinic? utm_source=badge& utm_medium=referral& utm_campaign=embed)
HTML, live uptime variant
<a href="https://x402-list.com/services/ the-clinic? utm_source=badge& utm_medium=referral& utm_campaign=embed"> <img src="https://x402-list.com/ badge/ the-clinic.svg? data=uptime" alt="The Clinic uptime on x402-list" height="28"> </a>
Delisting
To request delisting, email info@x402-list.com with the service name, slug, or URL. Removal is free and does not require proof of ownership. Contact.