> For the complete documentation index, see [llms.txt](https://docs.glassnode.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.glassnode.com/basic-api/endpoints/mempool.md). # Mempool ## Mempool Average Relative Fee > \*\*Definition.\*\* The mean relative fee of transactions waiting in the mempool.\n\n\*\*Technical.\*\* The relative fee is calculated as total transaction fees divided by transaction size (in vByte).\n\n\*\*Interpretation.\*\* High relative fees indicate transaction urgency, as miners optimise for fee per size rather than total fee. The total fee a miner can collect from a block is bounded by available block space.\n\ > \ > \[View in Studio]\()
```json {"openapi":"3.0.3","info":{"title":"Glassnode API - mempool","version":"1.0.0"},"servers":[{"url":"https://api.glassnode.com","description":"Production API server"}],"security":[{"ApiKeyAuth":[]}],"components":{"securitySchemes":{"ApiKeyAuth":{"type":"apiKey","in":"query","name":"api_key","description":"Your Glassnode API key"}},"schemas":{"TimeSeriesResponse":{"type":"array","items":{"$ref":"#/components/schemas/TimeSeriesDataPoint"}},"TimeSeriesDataPoint":{"type":"object","properties":{"t":{"type":"integer","format":"int64","description":"Unix timestamp"},"v":{"oneOf":[{"type":"number"},{"type":"object"},{"type":"array"}],"description":"Metric value (can be number, object, or array depending on the metric)"},"o":{"type":"object","description":"Object containing multiple metric values (when applicable)","additionalProperties":true}}},"ErrorResponse":{"type":"object","properties":{"error":{"type":"string"}}}}},"paths":{"/v1/metrics/mempool/fees_average_relative":{"get":{"summary":"Mempool Average Relative Fee","description":"**Definition.** The mean relative fee of transactions waiting in the mempool.\\n\\n**Technical.** The relative fee is calculated as total transaction fees divided by transaction size (in vByte).\\n\\n**Interpretation.** High relative fees indicate transaction urgency, as miners optimise for fee per size rather than total fee. The total fee a miner can collect from a block is bounded by available block space.\\n\n\n[View in Studio](https://studio.glassnode.com/charts/mempool.FeesAverageRelative?a=BTC)\n","operationId":"mempool.FeesAverageRelative","parameters":[{"name":"a","in":"query","required":true,"description":"asset id - (see metadata (metadata/metric) page for more details)}","schema":{"type":"string"},"style":"form","explode":false},{"name":"s","in":"query","required":false,"description":"since, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"u","in":"query","required":false,"description":"until, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"i","in":"query","required":false,"description":"frequency interval - 10m, 1h, 24h","schema":{"type":"string"},"style":"form","explode":false},{"name":"f","in":"query","required":false,"description":"format - csv, json","schema":{"type":"string","enum":["csv","json"],"default":"json"},"style":"form","explode":false},{"name":"timestamp_format","in":"query","required":false,"description":"timestamp format - unix or humanized (RFC 3339)","schema":{"type":"string","enum":["unix","humanized"],"default":"unix"},"style":"form","explode":false}],"responses":{"200":{"description":"Successful response","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TimeSeriesResponse"}}}},"400":{"description":"Bad Request - Invalid parameters or unsupported asset","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"401":{"description":"Unauthorized - Invalid or missing API key","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"429":{"description":"Too Many Requests - Rate limit exceeded","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}}}}}}} ``` ## Mempool Median Relative Fee > \*\*Definition.\*\* The median relative fee of transactions waiting in the mempool, where relative fee is total transaction fee divided by transaction size (in vByte).\n\n\*\*Interpretation.\*\* High relative fees indicate transaction urgency, since miners rank by fee-per-size rather than total fee because total collectable fee is bounded by block space.\n\ > \ > \[View in Studio]\()
```json {"openapi":"3.0.3","info":{"title":"Glassnode API - mempool","version":"1.0.0"},"servers":[{"url":"https://api.glassnode.com","description":"Production API server"}],"security":[{"ApiKeyAuth":[]}],"components":{"securitySchemes":{"ApiKeyAuth":{"type":"apiKey","in":"query","name":"api_key","description":"Your Glassnode API key"}},"schemas":{"TimeSeriesResponse":{"type":"array","items":{"$ref":"#/components/schemas/TimeSeriesDataPoint"}},"TimeSeriesDataPoint":{"type":"object","properties":{"t":{"type":"integer","format":"int64","description":"Unix timestamp"},"v":{"oneOf":[{"type":"number"},{"type":"object"},{"type":"array"}],"description":"Metric value (can be number, object, or array depending on the metric)"},"o":{"type":"object","description":"Object containing multiple metric values (when applicable)","additionalProperties":true}}},"ErrorResponse":{"type":"object","properties":{"error":{"type":"string"}}}}},"paths":{"/v1/metrics/mempool/fees_median_relative":{"get":{"summary":"Mempool Median Relative Fee","description":"**Definition.** The median relative fee of transactions waiting in the mempool, where relative fee is total transaction fee divided by transaction size (in vByte).\\n\\n**Interpretation.** High relative fees indicate transaction urgency, since miners rank by fee-per-size rather than total fee because total collectable fee is bounded by block space.\\n\n\n[View in Studio](https://studio.glassnode.com/charts/mempool.FeesMedianRelative?a=BTC)\n","operationId":"mempool.FeesMedianRelative","parameters":[{"name":"a","in":"query","required":true,"description":"asset id - (see metadata (metadata/metric) page for more details)}","schema":{"type":"string"},"style":"form","explode":false},{"name":"s","in":"query","required":false,"description":"since, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"u","in":"query","required":false,"description":"until, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"i","in":"query","required":false,"description":"frequency interval - 10m, 1h, 24h","schema":{"type":"string"},"style":"form","explode":false},{"name":"f","in":"query","required":false,"description":"format - csv, json","schema":{"type":"string","enum":["csv","json"],"default":"json"},"style":"form","explode":false},{"name":"timestamp_format","in":"query","required":false,"description":"timestamp format - unix or humanized (RFC 3339)","schema":{"type":"string","enum":["unix","humanized"],"default":"unix"},"style":"form","explode":false}],"responses":{"200":{"description":"Successful response","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TimeSeriesResponse"}}}},"400":{"description":"Bad Request - Invalid parameters or unsupported asset","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"401":{"description":"Unauthorized - Invalid or missing API key","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"429":{"description":"Too Many Requests - Rate limit exceeded","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}}}}}}} ``` ## Mempool Total Amount of Coins > \*\*Definition.\*\* The total amount of coins across transactions waiting in the mempool.\n\ > \ > \[View in Studio]\()
```json {"openapi":"3.0.3","info":{"title":"Glassnode API - mempool","version":"1.0.0"},"servers":[{"url":"https://api.glassnode.com","description":"Production API server"}],"security":[{"ApiKeyAuth":[]}],"components":{"securitySchemes":{"ApiKeyAuth":{"type":"apiKey","in":"query","name":"api_key","description":"Your Glassnode API key"}},"schemas":{"TimeSeriesResponse":{"type":"array","items":{"$ref":"#/components/schemas/TimeSeriesDataPoint"}},"TimeSeriesDataPoint":{"type":"object","properties":{"t":{"type":"integer","format":"int64","description":"Unix timestamp"},"v":{"oneOf":[{"type":"number"},{"type":"object"},{"type":"array"}],"description":"Metric value (can be number, object, or array depending on the metric)"},"o":{"type":"object","description":"Object containing multiple metric values (when applicable)","additionalProperties":true}}},"ErrorResponse":{"type":"object","properties":{"error":{"type":"string"}}}}},"paths":{"/v1/metrics/mempool/txs_value_sum":{"get":{"summary":"Mempool Total Amount of Coins","description":"**Definition.** The total amount of coins across transactions waiting in the mempool.\\n\n\n[View in Studio](https://studio.glassnode.com/charts/mempool.TxsValueSum?a=BTC)\n","operationId":"mempool.TxsValueSum","parameters":[{"name":"a","in":"query","required":true,"description":"asset id - (see metadata (metadata/metric) page for more details)}","schema":{"type":"string"},"style":"form","explode":false},{"name":"s","in":"query","required":false,"description":"since, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"u","in":"query","required":false,"description":"until, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"i","in":"query","required":false,"description":"frequency interval - 10m, 1h, 24h","schema":{"type":"string"},"style":"form","explode":false},{"name":"f","in":"query","required":false,"description":"format - csv, json","schema":{"type":"string","enum":["csv","json"],"default":"json"},"style":"form","explode":false},{"name":"c","in":"query","required":false,"description":"currency - NATIVE, USD","schema":{"type":"string"},"style":"form","explode":false},{"name":"timestamp_format","in":"query","required":false,"description":"timestamp format - unix or humanized (RFC 3339)","schema":{"type":"string","enum":["unix","humanized"],"default":"unix"},"style":"form","explode":false}],"responses":{"200":{"description":"Successful response","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TimeSeriesResponse"}}}},"400":{"description":"Bad Request - Invalid parameters or unsupported asset","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"401":{"description":"Unauthorized - Invalid or missing API key","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"429":{"description":"Too Many Requests - Rate limit exceeded","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}}}}}}} ``` ## Mempool Total Amount of Coins by Relative Fee > \*\*Definition.\*\* The total amount of coins across transactions waiting in the mempool, broken down into relative-fee (Sat / vByte) cohorts.\n\ > \ > \[View in Studio]\()
```json {"openapi":"3.0.3","info":{"title":"Glassnode API - mempool","version":"1.0.0"},"servers":[{"url":"https://api.glassnode.com","description":"Production API server"}],"security":[{"ApiKeyAuth":[]}],"components":{"securitySchemes":{"ApiKeyAuth":{"type":"apiKey","in":"query","name":"api_key","description":"Your Glassnode API key"}},"schemas":{"TimeSeriesResponse":{"type":"array","items":{"$ref":"#/components/schemas/TimeSeriesDataPoint"}},"TimeSeriesDataPoint":{"type":"object","properties":{"t":{"type":"integer","format":"int64","description":"Unix timestamp"},"v":{"oneOf":[{"type":"number"},{"type":"object"},{"type":"array"}],"description":"Metric value (can be number, object, or array depending on the metric)"},"o":{"type":"object","description":"Object containing multiple metric values (when applicable)","additionalProperties":true}}},"ErrorResponse":{"type":"object","properties":{"error":{"type":"string"}}}}},"paths":{"/v1/metrics/mempool/txs_value_distribution":{"get":{"summary":"Mempool Total Amount of Coins by Relative Fee","description":"**Definition.** The total amount of coins across transactions waiting in the mempool, broken down into relative-fee (Sat / vByte) cohorts.\\n\n\n[View in Studio](https://studio.glassnode.com/charts/mempool.TxsValueDistribution?a=BTC)\n","operationId":"mempool.TxsValueDistribution","parameters":[{"name":"a","in":"query","required":true,"description":"asset id - (see metadata (metadata/metric) page for more details)}","schema":{"type":"string"},"style":"form","explode":false},{"name":"s","in":"query","required":false,"description":"since, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"u","in":"query","required":false,"description":"until, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"i","in":"query","required":false,"description":"frequency interval - 10m, 1h, 24h","schema":{"type":"string"},"style":"form","explode":false},{"name":"f","in":"query","required":false,"description":"format - csv, json","schema":{"type":"string","enum":["csv","json"],"default":"json"},"style":"form","explode":false},{"name":"c","in":"query","required":false,"description":"currency - NATIVE, USD","schema":{"type":"string"},"style":"form","explode":false},{"name":"timestamp_format","in":"query","required":false,"description":"timestamp format - unix or humanized (RFC 3339)","schema":{"type":"string","enum":["unix","humanized"],"default":"unix"},"style":"form","explode":false}],"responses":{"200":{"description":"Successful response","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TimeSeriesResponse"}}}},"400":{"description":"Bad Request - Invalid parameters or unsupported asset","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"401":{"description":"Unauthorized - Invalid or missing API key","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"429":{"description":"Too Many Requests - Rate limit exceeded","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}}}}}}} ``` ## Mempool Total Amount of Fees > \*\*Definition.\*\* The total amount of fees across transactions waiting in the mempool.\n\ > \ > \[View in Studio]\()
```json {"openapi":"3.0.3","info":{"title":"Glassnode API - mempool","version":"1.0.0"},"servers":[{"url":"https://api.glassnode.com","description":"Production API server"}],"security":[{"ApiKeyAuth":[]}],"components":{"securitySchemes":{"ApiKeyAuth":{"type":"apiKey","in":"query","name":"api_key","description":"Your Glassnode API key"}},"schemas":{"TimeSeriesResponse":{"type":"array","items":{"$ref":"#/components/schemas/TimeSeriesDataPoint"}},"TimeSeriesDataPoint":{"type":"object","properties":{"t":{"type":"integer","format":"int64","description":"Unix timestamp"},"v":{"oneOf":[{"type":"number"},{"type":"object"},{"type":"array"}],"description":"Metric value (can be number, object, or array depending on the metric)"},"o":{"type":"object","description":"Object containing multiple metric values (when applicable)","additionalProperties":true}}},"ErrorResponse":{"type":"object","properties":{"error":{"type":"string"}}}}},"paths":{"/v1/metrics/mempool/fees_sum":{"get":{"summary":"Mempool Total Amount of Fees","description":"**Definition.** The total amount of fees across transactions waiting in the mempool.\\n\n\n[View in Studio](https://studio.glassnode.com/charts/mempool.FeesSum?a=BTC)\n","operationId":"mempool.FeesSum","parameters":[{"name":"a","in":"query","required":true,"description":"asset id - (see metadata (metadata/metric) page for more details)}","schema":{"type":"string"},"style":"form","explode":false},{"name":"s","in":"query","required":false,"description":"since, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"u","in":"query","required":false,"description":"until, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"i","in":"query","required":false,"description":"frequency interval - 10m, 1h, 24h","schema":{"type":"string"},"style":"form","explode":false},{"name":"f","in":"query","required":false,"description":"format - csv, json","schema":{"type":"string","enum":["csv","json"],"default":"json"},"style":"form","explode":false},{"name":"c","in":"query","required":false,"description":"currency - NATIVE, USD","schema":{"type":"string"},"style":"form","explode":false},{"name":"timestamp_format","in":"query","required":false,"description":"timestamp format - unix or humanized (RFC 3339)","schema":{"type":"string","enum":["unix","humanized"],"default":"unix"},"style":"form","explode":false}],"responses":{"200":{"description":"Successful response","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TimeSeriesResponse"}}}},"400":{"description":"Bad Request - Invalid parameters or unsupported asset","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"401":{"description":"Unauthorized - Invalid or missing API key","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"429":{"description":"Too Many Requests - Rate limit exceeded","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}}}}}}} ``` ## Mempool Total Amount of Fees by Relative Fee > \*\*Definition.\*\* The total amount of fees attached to unconfirmed transactions waiting in the mempool, broken down across relative fee (Sat / vByte) cohorts.\n\ > \ > \[View in Studio]\()
```json {"openapi":"3.0.3","info":{"title":"Glassnode API - mempool","version":"1.0.0"},"servers":[{"url":"https://api.glassnode.com","description":"Production API server"}],"security":[{"ApiKeyAuth":[]}],"components":{"securitySchemes":{"ApiKeyAuth":{"type":"apiKey","in":"query","name":"api_key","description":"Your Glassnode API key"}},"schemas":{"TimeSeriesResponse":{"type":"array","items":{"$ref":"#/components/schemas/TimeSeriesDataPoint"}},"TimeSeriesDataPoint":{"type":"object","properties":{"t":{"type":"integer","format":"int64","description":"Unix timestamp"},"v":{"oneOf":[{"type":"number"},{"type":"object"},{"type":"array"}],"description":"Metric value (can be number, object, or array depending on the metric)"},"o":{"type":"object","description":"Object containing multiple metric values (when applicable)","additionalProperties":true}}},"ErrorResponse":{"type":"object","properties":{"error":{"type":"string"}}}}},"paths":{"/v1/metrics/mempool/fees_distribution":{"get":{"summary":"Mempool Total Amount of Fees by Relative Fee","description":"**Definition.** The total amount of fees attached to unconfirmed transactions waiting in the mempool, broken down across relative fee (Sat / vByte) cohorts.\\n\n\n[View in Studio](https://studio.glassnode.com/charts/mempool.FeesDistribution?a=BTC)\n","operationId":"mempool.FeesDistribution","parameters":[{"name":"a","in":"query","required":true,"description":"asset id - (see metadata (metadata/metric) page for more details)}","schema":{"type":"string"},"style":"form","explode":false},{"name":"s","in":"query","required":false,"description":"since, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"u","in":"query","required":false,"description":"until, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"i","in":"query","required":false,"description":"frequency interval - 10m, 1h, 24h","schema":{"type":"string"},"style":"form","explode":false},{"name":"f","in":"query","required":false,"description":"format - csv, json","schema":{"type":"string","enum":["csv","json"],"default":"json"},"style":"form","explode":false},{"name":"c","in":"query","required":false,"description":"currency - NATIVE, USD","schema":{"type":"string"},"style":"form","explode":false},{"name":"timestamp_format","in":"query","required":false,"description":"timestamp format - unix or humanized (RFC 3339)","schema":{"type":"string","enum":["unix","humanized"],"default":"unix"},"style":"form","explode":false}],"responses":{"200":{"description":"Successful response","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TimeSeriesResponse"}}}},"400":{"description":"Bad Request - Invalid parameters or unsupported asset","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"401":{"description":"Unauthorized - Invalid or missing API key","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"429":{"description":"Too Many Requests - Rate limit exceeded","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}}}}}}} ``` ## Mempool Transaction Count > \*\*Definition.\*\* The total number of transactions waiting in the mempool.\n\ > \ > \[View in Studio]\()
```json {"openapi":"3.0.3","info":{"title":"Glassnode API - mempool","version":"1.0.0"},"servers":[{"url":"https://api.glassnode.com","description":"Production API server"}],"security":[{"ApiKeyAuth":[]}],"components":{"securitySchemes":{"ApiKeyAuth":{"type":"apiKey","in":"query","name":"api_key","description":"Your Glassnode API key"}},"schemas":{"TimeSeriesResponse":{"type":"array","items":{"$ref":"#/components/schemas/TimeSeriesDataPoint"}},"TimeSeriesDataPoint":{"type":"object","properties":{"t":{"type":"integer","format":"int64","description":"Unix timestamp"},"v":{"oneOf":[{"type":"number"},{"type":"object"},{"type":"array"}],"description":"Metric value (can be number, object, or array depending on the metric)"},"o":{"type":"object","description":"Object containing multiple metric values (when applicable)","additionalProperties":true}}},"ErrorResponse":{"type":"object","properties":{"error":{"type":"string"}}}}},"paths":{"/v1/metrics/mempool/txs_count_sum":{"get":{"summary":"Mempool Transaction Count","description":"**Definition.** The total number of transactions waiting in the mempool.\\n\n\n[View in Studio](https://studio.glassnode.com/charts/mempool.TxsCountSum?a=BTC)\n","operationId":"mempool.TxsCountSum","parameters":[{"name":"a","in":"query","required":true,"description":"asset id - (see metadata (metadata/metric) page for more details)}","schema":{"type":"string"},"style":"form","explode":false},{"name":"s","in":"query","required":false,"description":"since, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"u","in":"query","required":false,"description":"until, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"i","in":"query","required":false,"description":"frequency interval - 10m, 1h, 24h","schema":{"type":"string"},"style":"form","explode":false},{"name":"f","in":"query","required":false,"description":"format - csv, json","schema":{"type":"string","enum":["csv","json"],"default":"json"},"style":"form","explode":false},{"name":"timestamp_format","in":"query","required":false,"description":"timestamp format - unix or humanized (RFC 3339)","schema":{"type":"string","enum":["unix","humanized"],"default":"unix"},"style":"form","explode":false}],"responses":{"200":{"description":"Successful response","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TimeSeriesResponse"}}}},"400":{"description":"Bad Request - Invalid parameters or unsupported asset","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"401":{"description":"Unauthorized - Invalid or missing API key","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"429":{"description":"Too Many Requests - Rate limit exceeded","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}}}}}}} ``` ## Mempool Transaction Count by Relative Fee > \*\*Definition.\*\* The total number of transactions waiting in the mempool, broken down into relative-fee (Sat / vByte) cohorts.\n\ > \ > \[View in Studio]\()
```json {"openapi":"3.0.3","info":{"title":"Glassnode API - mempool","version":"1.0.0"},"servers":[{"url":"https://api.glassnode.com","description":"Production API server"}],"security":[{"ApiKeyAuth":[]}],"components":{"securitySchemes":{"ApiKeyAuth":{"type":"apiKey","in":"query","name":"api_key","description":"Your Glassnode API key"}},"schemas":{"TimeSeriesResponse":{"type":"array","items":{"$ref":"#/components/schemas/TimeSeriesDataPoint"}},"TimeSeriesDataPoint":{"type":"object","properties":{"t":{"type":"integer","format":"int64","description":"Unix timestamp"},"v":{"oneOf":[{"type":"number"},{"type":"object"},{"type":"array"}],"description":"Metric value (can be number, object, or array depending on the metric)"},"o":{"type":"object","description":"Object containing multiple metric values (when applicable)","additionalProperties":true}}},"ErrorResponse":{"type":"object","properties":{"error":{"type":"string"}}}}},"paths":{"/v1/metrics/mempool/txs_count_distribution":{"get":{"summary":"Mempool Transaction Count by Relative Fee","description":"**Definition.** The total number of transactions waiting in the mempool, broken down into relative-fee (Sat / vByte) cohorts.\\n\n\n[View in Studio](https://studio.glassnode.com/charts/mempool.TxsCountDistribution?a=BTC)\n","operationId":"mempool.TxsCountDistribution","parameters":[{"name":"a","in":"query","required":true,"description":"asset id - (see metadata (metadata/metric) page for more details)}","schema":{"type":"string"},"style":"form","explode":false},{"name":"s","in":"query","required":false,"description":"since, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"u","in":"query","required":false,"description":"until, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"i","in":"query","required":false,"description":"frequency interval - 10m, 1h, 24h","schema":{"type":"string"},"style":"form","explode":false},{"name":"f","in":"query","required":false,"description":"format - csv, json","schema":{"type":"string","enum":["csv","json"],"default":"json"},"style":"form","explode":false},{"name":"timestamp_format","in":"query","required":false,"description":"timestamp format - unix or humanized (RFC 3339)","schema":{"type":"string","enum":["unix","humanized"],"default":"unix"},"style":"form","explode":false}],"responses":{"200":{"description":"Successful response","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TimeSeriesResponse"}}}},"400":{"description":"Bad Request - Invalid parameters or unsupported asset","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"401":{"description":"Unauthorized - Invalid or missing API key","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"429":{"description":"Too Many Requests - Rate limit exceeded","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}}}}}}} ``` ## Mempool Transactions Size > \*\*Definition.\*\* The total size of all transactions waiting in the mempool, denoted in virtual bytes (vByte).\n\ > \ > \[View in Studio]\()
```json {"openapi":"3.0.3","info":{"title":"Glassnode API - mempool","version":"1.0.0"},"servers":[{"url":"https://api.glassnode.com","description":"Production API server"}],"security":[{"ApiKeyAuth":[]}],"components":{"securitySchemes":{"ApiKeyAuth":{"type":"apiKey","in":"query","name":"api_key","description":"Your Glassnode API key"}},"schemas":{"TimeSeriesResponse":{"type":"array","items":{"$ref":"#/components/schemas/TimeSeriesDataPoint"}},"TimeSeriesDataPoint":{"type":"object","properties":{"t":{"type":"integer","format":"int64","description":"Unix timestamp"},"v":{"oneOf":[{"type":"number"},{"type":"object"},{"type":"array"}],"description":"Metric value (can be number, object, or array depending on the metric)"},"o":{"type":"object","description":"Object containing multiple metric values (when applicable)","additionalProperties":true}}},"ErrorResponse":{"type":"object","properties":{"error":{"type":"string"}}}}},"paths":{"/v1/metrics/mempool/txs_size_sum":{"get":{"summary":"Mempool Transactions Size","description":"**Definition.** The total size of all transactions waiting in the mempool, denoted in virtual bytes (vByte).\\n\n\n[View in Studio](https://studio.glassnode.com/charts/mempool.TxsSizeSum?a=BTC)\n","operationId":"mempool.TxsSizeSum","parameters":[{"name":"a","in":"query","required":true,"description":"asset id - (see metadata (metadata/metric) page for more details)}","schema":{"type":"string"},"style":"form","explode":false},{"name":"s","in":"query","required":false,"description":"since, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"u","in":"query","required":false,"description":"until, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"i","in":"query","required":false,"description":"frequency interval - 10m, 1h, 24h","schema":{"type":"string"},"style":"form","explode":false},{"name":"f","in":"query","required":false,"description":"format - csv, json","schema":{"type":"string","enum":["csv","json"],"default":"json"},"style":"form","explode":false},{"name":"timestamp_format","in":"query","required":false,"description":"timestamp format - unix or humanized (RFC 3339)","schema":{"type":"string","enum":["unix","humanized"],"default":"unix"},"style":"form","explode":false}],"responses":{"200":{"description":"Successful response","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TimeSeriesResponse"}}}},"400":{"description":"Bad Request - Invalid parameters or unsupported asset","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"401":{"description":"Unauthorized - Invalid or missing API key","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"429":{"description":"Too Many Requests - Rate limit exceeded","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}}}}}}} ``` ## Mempool Transactions Size by Relative Fee > \*\*Definition.\*\* The total size of transactions waiting in the mempool, denominated in virtual bytes and broken out by relative fee (sat/vByte) cohort.\n\ > \ > \[View in Studio]\()
```json {"openapi":"3.0.3","info":{"title":"Glassnode API - mempool","version":"1.0.0"},"servers":[{"url":"https://api.glassnode.com","description":"Production API server"}],"security":[{"ApiKeyAuth":[]}],"components":{"securitySchemes":{"ApiKeyAuth":{"type":"apiKey","in":"query","name":"api_key","description":"Your Glassnode API key"}},"schemas":{"TimeSeriesResponse":{"type":"array","items":{"$ref":"#/components/schemas/TimeSeriesDataPoint"}},"TimeSeriesDataPoint":{"type":"object","properties":{"t":{"type":"integer","format":"int64","description":"Unix timestamp"},"v":{"oneOf":[{"type":"number"},{"type":"object"},{"type":"array"}],"description":"Metric value (can be number, object, or array depending on the metric)"},"o":{"type":"object","description":"Object containing multiple metric values (when applicable)","additionalProperties":true}}},"ErrorResponse":{"type":"object","properties":{"error":{"type":"string"}}}}},"paths":{"/v1/metrics/mempool/txs_size_distribution":{"get":{"summary":"Mempool Transactions Size by Relative Fee","description":"**Definition.** The total size of transactions waiting in the mempool, denominated in virtual bytes and broken out by relative fee (sat/vByte) cohort.\\n\n\n[View in Studio](https://studio.glassnode.com/charts/mempool.TxsSizeDistribution?a=BTC)\n","operationId":"mempool.TxsSizeDistribution","parameters":[{"name":"a","in":"query","required":true,"description":"asset id - (see metadata (metadata/metric) page for more details)}","schema":{"type":"string"},"style":"form","explode":false},{"name":"s","in":"query","required":false,"description":"since, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"u","in":"query","required":false,"description":"until, unix timestamp","schema":{"type":"integer"},"style":"form","explode":false},{"name":"i","in":"query","required":false,"description":"frequency interval - 10m, 1h, 24h","schema":{"type":"string"},"style":"form","explode":false},{"name":"f","in":"query","required":false,"description":"format - csv, json","schema":{"type":"string","enum":["csv","json"],"default":"json"},"style":"form","explode":false},{"name":"timestamp_format","in":"query","required":false,"description":"timestamp format - unix or humanized (RFC 3339)","schema":{"type":"string","enum":["unix","humanized"],"default":"unix"},"style":"form","explode":false}],"responses":{"200":{"description":"Successful response","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TimeSeriesResponse"}}}},"400":{"description":"Bad Request - Invalid parameters or unsupported asset","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"401":{"description":"Unauthorized - Invalid or missing API key","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"429":{"description":"Too Many Requests - Rate limit exceeded","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}}}}}}} ``` --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.glassnode.com/basic-api/endpoints/mempool.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.