{"slug":"api-seneschal-space-v1-q-proposer-payment-bf94bb","title":"Single-fact","host":"api.seneschal.space","method":"GET","resource":"https://api.seneschal.space/v1/q/proposer-payment","category":"other","description":"Single-fact: what did the proposer of the latest block ACTUALLY get paid (priority fees + direct coinbase transfers — the value that reaches the validator, not the noisy block-value proxy)? Returns {block, proposer_payment_eth, builder, tx_count} plus a 1h aggregate {samples, mean_eth, median_eth, p","price_listed":0.001,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":4,"reported_payers_30d":3,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"as_of_ms":{"type":"integer"},"block":{"type":"integer"},"builder":{"type":"string"},"history_endpoint":{"type":"string"},"hour":{"type":"object"},"proposer_payment_eth":{"type":"number"},"proposer_payment_wei":{"type":"string"},"source_freshness_s":{"type":"integer"},"ts_ms":{"type":"integer"},"tx_count":{"type":"integer"}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"Single-fact: what did the proposer of the latest block ACTUALLY get paid (priority fees + direct coinbase transfers — the value that reaches the validator, not the noisy block-value proxy)? Returns {block, proposer_payment_eth, builder, tx_count} plus a 1h aggregate {samples, mean_eth, median_eth, p90_eth, max_eth}. Per-block history export: /v1/premium/builder-bids.csv ($0.05, CSV or JSONL).","last_updated":"2026-09-08T07:53:06.017Z","schemes":["exact"]}