beacon-node-oapi.yaml

openapi: "3.1.0"

info:
  title: "Eth Beacon Node API"
  description: |
    API specification for the beacon node, which enables users to query and participate in Ethereum 2.0 phase 0 beacon chain.

    All requests by default send and receive JSON, and as such should have either or both of the "Content-Type: application/json"
    and "Accept: application/json" headers.  In addition, some requests can send and receive data in the SSZ format.  The header
    "Content-Type: application/octet-stream" should be set in requests that contain SSZ data; a preference to receive SSZ data in
    response can be indicated by setting the "Accept: application/octet-stream;q=1.0,application/json;q=0.9" header.  Note that
    only a subset of requests can respond with data in SSZ format; these are noted in each individual request.

    When handling requests, the server should return a 415 status code if the "Content-Type" header in the request specifies a format
    that is not supported.  Similarly, it should return a 406 status code if it cannot produce a response in the format accepted by
    the client as specified in the "Accept" header; if no "Accept" header is provided then it is assumed to be "application/json".
    In any case, the server should indicate the format of the response by setting the corresponding "Content-Type" header.

    API endpoints are individually versioned.  As such, there is no direct relationship between all v1 endpoints, all v2 endpoints,
    _etc._ and no such relationship should be inferred.  All JSON responses return the requested data under a `data` key in the top
    level of their response.  Additional metadata may or may not be present in other keys at the top level of the response, dependent
    on the endpoint.  The rules that require an increase in version number are as follows:

      - no field that is listed in an endpoint shall be removed without an increase in the version number
      - no field that is listed in an endpoint shall be altered in terms of format (_e.g._ from a string to an array) without an
        increase in the version number

    Note that it is possible for a field to be added to an endpoint's data or metadata without an increase in the version number.

  version: "Dev - Ethereum Proof-of-Stake Consensus Specification v1.4.0"
  contact:
    name: Ethereum Github
    url: https://github.com/ethereum/beacon-apis/issues
  license:
    name: "CC0-1.0"
    url: "https://creativecommons.org/publicdomain/zero/1.0/"

servers:
  - url: "{server_url}"
    variables:
      server_url:
        description: "Beacon node API url"
        default: "http://localhost/"

tags:
  - name: Beacon
    description: Set of endpoints to query beacon chain.
  - name: Builder
    description: Set of endpoints specific to building blocks.
  - name: Config
    description: Endpoints to query chain configuration, specification, and fork schedules.
  - name: Debug
    description: Set of endpoints to debug chain and shouldn't be exposed publicly.
  - name: Events
    description: Set of endpoints for event subscription.
  - name: Node
    description: Endpoints to query node related information.
  - name: Validator
    description: Endpoints intended for validator clients.
  - name: ValidatorRequiredApi
    description: |
      Minimal set of endpoints to enable a working validator implementation.

      [Checkout validator flow](./validator-flow.md) to learn how to use this api.
  - name: Rewards
    description: Endpoints to query rewards and penalties for validators.

paths:

  /eth/v1/beacon/genesis:
    $ref: "./apis/beacon/genesis.yaml"
  /eth/v1/beacon/states/{state_id}/root:
    $ref: "./apis/beacon/states/root.yaml"
  /eth/v1/beacon/states/{state_id}/fork:
    $ref: "./apis/beacon/states/fork.yaml"
  /eth/v1/beacon/states/{state_id}/finality_checkpoints:
    $ref: "./apis/beacon/states/finality_checkpoints.yaml"
  /eth/v1/beacon/states/{state_id}/validators:
    $ref: "./apis/beacon/states/validators.yaml"
  /eth/v1/beacon/states/{state_id}/validators/{validator_id}:
    $ref: "./apis/beacon/states/validator.yaml"
  /eth/v1/beacon/states/{state_id}/validator_balances:
    $ref: "./apis/beacon/states/validator_balances.yaml"
  /eth/v1/beacon/states/{state_id}/validator_identities:
    $ref: "./apis/beacon/states/validator_identities.yaml"
  /eth/v1/beacon/states/{state_id}/committees:
    $ref: "./apis/beacon/states/committee.yaml"
  /eth/v1/beacon/states/{state_id}/sync_committees:
    $ref: "./apis/beacon/states/sync_committees.yaml"
  /eth/v1/beacon/states/{state_id}/randao:
    $ref: "./apis/beacon/states/randao.yaml"
  /eth/v1/beacon/headers:
    $ref: "./apis/beacon/blocks/headers.yaml"
  /eth/v1/beacon/headers/{block_id}:
    $ref: "./apis/beacon/blocks/header.yaml"
  /eth/v1/beacon/blinded_blocks:
    $ref: "./apis/beacon/blocks/blinded_blocks.yaml"
  /eth/v2/beacon/blinded_blocks:
    $ref: "./apis/beacon/blocks/blinded_blocks.v2.yaml"
  /eth/v1/beacon/blocks:
    $ref: "./apis/beacon/blocks/blocks.yaml"
  /eth/v2/beacon/blocks:
    $ref: "./apis/beacon/blocks/blocks.v2.yaml"
  /eth/v2/beacon/blocks/{block_id}:
    $ref: "./apis/beacon/blocks/block.v2.yaml"
  /eth/v1/beacon/blocks/{block_id}/root:
    $ref: "./apis/beacon/blocks/root.yaml"
  /eth/v1/beacon/blocks/{block_id}/attestations:
    $ref: "./apis/beacon/blocks/attestations.yaml"
  /eth/v2/beacon/blocks/{block_id}/attestations:
    $ref: "./apis/beacon/blocks/attestations.v2.yaml"
  /eth/v1/beacon/blob_sidecars/{block_id}:
    $ref: "./apis/beacon/blob_sidecars/blob_sidecars.yaml"
  /eth/v1/beacon/rewards/sync_committee/{block_id}:
    $ref: "./apis/beacon/rewards/sync_committee.yaml"
  /eth/v1/beacon/deposit_snapshot:
    $ref: "./apis/beacon/deposit_snapshot.yaml"
  /eth/v1/beacon/rewards/blocks/{block_id}:
    $ref: "./apis/beacon/rewards/blocks.yaml"
  /eth/v1/beacon/rewards/attestations/{epoch}:
    $ref: "./apis/beacon/rewards/attestations.yaml"
  /eth/v1/beacon/blinded_blocks/{block_id}:
    $ref: "./apis/beacon/blocks/blinded_block.yaml"
  /eth/v1/beacon/light_client/bootstrap/{block_root}:
    $ref: "./apis/beacon/light_client/bootstrap.yaml"
  /eth/v1/beacon/light_client/updates:
    $ref: "./apis/beacon/light_client/updates.yaml"
  /eth/v1/beacon/light_client/finality_update:
    $ref: "./apis/beacon/light_client/finality_update.yaml"
  /eth/v1/beacon/light_client/optimistic_update:
    $ref: "./apis/beacon/light_client/optimistic_update.yaml"
  /eth/v1/beacon/pool/attestations:
    $ref: "./apis/beacon/pool/attestations.yaml"
  /eth/v2/beacon/pool/attestations:
    $ref: "./apis/beacon/pool/attestations.v2.yaml"
  /eth/v1/beacon/pool/attester_slashings:
    $ref: "./apis/beacon/pool/attester_slashings.yaml"
  /eth/v2/beacon/pool/attester_slashings:
    $ref: "./apis/beacon/pool/attester_slashings.v2.yaml"
  /eth/v1/beacon/pool/proposer_slashings:
    $ref: "./apis/beacon/pool/proposer_slashings.yaml"
  /eth/v1/beacon/pool/sync_committees:
    $ref: "./apis/beacon/pool/sync_committees.yaml"
  /eth/v1/beacon/pool/voluntary_exits:
    $ref: "./apis/beacon/pool/voluntary_exits.yaml"
  /eth/v1/beacon/pool/bls_to_execution_changes:
    $ref: "./apis/beacon/pool/bls_to_execution_changes.yaml"

  /eth/v1/builder/states/{state_id}/expected_withdrawals:
    $ref: "./apis/builder/states/expected_withdrawals.yaml"

  /eth/v2/debug/beacon/states/{state_id}:
    $ref: './apis/debug/state.v2.yaml'
  /eth/v2/debug/beacon/heads:
    $ref: './apis/debug/heads.v2.yaml'
  /eth/v1/debug/fork_choice:
    $ref: './apis/debug/fork_choice.yaml'

  /eth/v1/node/identity:
    $ref: "./apis/node/identity.yaml"
  /eth/v1/node/peers:
    $ref: "./apis/node/peers.yaml"
  /eth/v1/node/peers/{peer_id}:
    $ref: "./apis/node/peer.yaml"
  /eth/v1/node/peer_count:
    $ref: "./apis/node/peer_count.yaml"
  /eth/v1/node/version:
    $ref: "./apis/node/version.yaml"
  /eth/v1/node/syncing:
    $ref: "./apis/node/syncing.yaml"
  /eth/v1/node/health:
    $ref: "./apis/node/health.yaml"

  /eth/v1/config/fork_schedule:
    $ref: "./apis/config/fork_schedule.yaml"
  /eth/v1/config/spec:
    $ref: "./apis/config/spec.yaml"
  /eth/v1/config/deposit_contract:
    $ref: "./apis/config/deposit_contract.yaml"

  /eth/v1/validator/duties/attester/{epoch}:
    $ref: "./apis/validator/duties/attester.yaml"
  /eth/v1/validator/duties/proposer/{epoch}:
    $ref: "./apis/validator/duties/proposer.yaml"
  /eth/v1/validator/duties/sync/{epoch}:
    $ref: "./apis/validator/duties/sync.yaml"
  /eth/v2/validator/blocks/{slot}:
    $ref: "./apis/validator/block.v2.yaml"
  /eth/v3/validator/blocks/{slot}:
    $ref: "./apis/validator/block.v3.yaml"
  /eth/v1/validator/blinded_blocks/{slot}:
    $ref: "./apis/validator/blinded_block.yaml"
  /eth/v1/validator/attestation_data:
    $ref: "./apis/validator/attestation_data.yaml"
  /eth/v1/validator/aggregate_attestation:
    $ref: "./apis/validator/aggregate_attestation.yaml"
  /eth/v2/validator/aggregate_attestation:
    $ref: "./apis/validator/aggregate_attestation.v2.yaml"
  /eth/v1/validator/aggregate_and_proofs:
    $ref: "./apis/validator/aggregate_and_proofs.yaml"
  /eth/v2/validator/aggregate_and_proofs:
    $ref: "./apis/validator/aggregate_and_proofs.v2.yaml"
  /eth/v1/validator/beacon_committee_subscriptions:
    $ref: "./apis/validator/beacon_committee_subscriptions.yaml"
  /eth/v1/validator/sync_committee_subscriptions:
    $ref: "./apis/validator/sync_committee_subscriptions.yaml"
  /eth/v1/validator/beacon_committee_selections:
    $ref: "./apis/validator/beacon_committee_selections.yaml"
  /eth/v1/validator/sync_committee_contribution:
    $ref: "./apis/validator/sync_committee_contribution.yaml"
  /eth/v1/validator/sync_committee_selections:
    $ref: "./apis/validator/sync_committee_selections.yaml"
  /eth/v1/validator/contribution_and_proofs:
    $ref: "./apis/validator/sync_committee_contribution_and_proof.yaml"
  /eth/v1/validator/prepare_beacon_proposer:
    $ref: "./apis/validator/prepare_beacon_proposer.yaml"
  /eth/v1/validator/register_validator:
    $ref: "./apis/validator/register_validator.yaml"
  /eth/v1/validator/liveness/{epoch}:
    $ref: "./apis/validator/liveness.yaml"

  /eth/v1/events:
    $ref: "./apis/eventstream/index.yaml"


components:
  schemas:
    BeaconState:
      $ref: './types/state.yaml#/BeaconState'
    BeaconBlock:
      $ref: './types/block.yaml#/BeaconBlock'
    BroadcastValidation:
      $ref: './types/api.yaml#/BroadcastValidation'
    DepositSnapshotResponse:
      $ref: './types/api.yaml#/DepositSnapshotResponse'
    SignedBeaconBlock:
      $ref: './types/block.yaml#/SignedBeaconBlock'
    SignedBeaconBlockHeader:
      $ref: './types/block.yaml#/SignedBeaconBlockHeader'
    ValidatorResponse:
      $ref: './types/api.yaml#/ValidatorResponse'
    ValidatorBalanceResponse:
      $ref: './types/api.yaml#/ValidatorBalanceResponse'
    ValidatorIdentityResponse:
      $ref: './types/api.yaml#/ValidatorIdentityResponse'
    ValidatorStatus:
      $ref: './types/api.yaml#/ValidatorStatus'
    Committee:
      $ref: './types/api.yaml#/Committee'
    AttesterSlashing:
      $ref: './types/attester_slashing.yaml#/AttesterSlashing'
    ProposerSlashing:
      $ref: './types/proposer_slashing.yaml#/ProposerSlashing'
    SignedVoluntaryExit:
      $ref: './types/voluntary_exit.yaml#/SignedVoluntaryExit'
    SignedBLSToExecutionChange:
      $ref: './types/bls_to_execution_change.yaml#/SignedBLSToExecutionChange'
    AttesterDuty:
      $ref: './types/validator.yaml#/AttesterDuty'
    ProposerDuty:
      $ref: './types/validator.yaml#/ProposerDuty'
    Altair.SyncDuty:
      $ref: './types/validator.yaml#/Altair/SyncDuty'
    SignedAggregateAndProof:
      $ref: './types/validator.yaml#/SignedAggregateAndProof'
    Attestation:
      $ref: './types/attestation.yaml#/Attestation'
    AttestationData:
      $ref: './types/attestation_data.yaml#/AttestationData'
    BeaconCommitteeSelection:
      $ref: './types/selection.yaml#/BeaconCommitteeSelection'
    SyncCommitteeSelection:
      $ref: './types/selection.yaml#/SyncCommitteeSelection'
    Fork:
      $ref: './types/misc.yaml#/Fork'
    Checkpoint:
      $ref: './types/misc.yaml#/Checkpoint'
    Uint64:
      $ref: './types/primitive.yaml#/Uint64'
    NetworkIdentity:
      $ref: './types/p2p.yaml#/NetworkIdentity'
    Peer:
      $ref: './types/p2p.yaml#/Peer'
    PeerId:
      $ref: './types/p2p.yaml#/PeerId'
    PeerConnectionState:
      $ref: './types/p2p.yaml#/PeerConnectionState'
    PeerConnectionDirection:
      $ref: './types/p2p.yaml#/PeerConnectionDirection'
    GenesisTime:
      $ref: './types/primitive.yaml#/GenesisTime'
    Version:
      $ref: './types/primitive.yaml#/Version'
    ForkVersion:
      $ref: './types/primitive.yaml#/ForkVersion'
    DependentRoot:
      $ref: './types/primitive.yaml#/DependentRoot'
    ExecutionOptimistic:
      $ref: './types/primitive.yaml#/ExecutionOptimistic'
    Finalized:
      $ref: './types/primitive.yaml#/Finalized'
    Root:
      $ref: './types/primitive.yaml#/Root'
    Graffiti:
      $ref: './types/primitive.yaml#/Graffiti'
    Signature:
      $ref: './types/primitive.yaml#/Signature'
    ErrorMessage:
      $ref: './types/http.yaml#/ErrorMessage'
    IndexedErrorMessage:
      $ref: './types/http.yaml#/IndexedErrorMessage'
    Altair.BeaconBlock:
      $ref: './types/altair/block.yaml#/Altair/BeaconBlock'
    Altair.SignedBeaconBlock:
      $ref: './types/altair/block.yaml#/Altair/SignedBeaconBlock'
    Altair.LightClientBootstrap:
      $ref: './types/altair/light_client.yaml#/Altair/LightClientBootstrap'
    Altair.LightClientUpdate:
      $ref: './types/altair/light_client.yaml#/Altair/LightClientUpdate'
    Altair.LightClientFinalityUpdate:
      $ref: './types/altair/light_client.yaml#/Altair/LightClientFinalityUpdate'
    Altair.LightClientOptimisticUpdate:
      $ref: './types/altair/light_client.yaml#/Altair/LightClientOptimisticUpdate'
    Altair.BeaconState:
      $ref: './types/altair/state.yaml#/Altair/BeaconState'
    Altair.SyncCommitteeSignature:
      $ref: './types/altair/sync_committee.yaml#/Altair/SyncCommitteeSignature'
    Altair.SyncCommitteeSubscription:
      $ref: './types/altair/sync_committee.yaml#/Altair/SyncCommitteeSubscription'
    Altair.ContributionAndProof:
      $ref: './types/altair/sync_committee.yaml#/Altair/ContributionAndProof'
    Altair.SignedContributionAndProof:
      $ref: './types/altair/sync_committee.yaml#/Altair/SignedContributionAndProof'
    Altair.SyncCommitteeContribution:
      $ref: './types/altair/sync_committee.yaml#/Altair/SyncCommitteeContribution'
    Altair.SyncCommittee:
      $ref: './types/altair/sync_committee.yaml#/Altair/SyncCommitteeByValidatorIndices'
    ExecutionAddress:
      $ref: './types/primitive.yaml#/ExecutionAddress'
    Bellatrix.BeaconState:
      $ref: './types/bellatrix/state.yaml#/Bellatrix/BeaconState'
    Bellatrix.BeaconBlock:
      $ref: './types/bellatrix/block.yaml#/Bellatrix/BeaconBlock'
    Bellatrix.SignedBeaconBlock:
      $ref: './types/bellatrix/block.yaml#/Bellatrix/SignedBeaconBlock'
    Bellatrix.BlindedBeaconBlock:
      $ref: './types/bellatrix/block.yaml#/Bellatrix/BlindedBeaconBlock'
    Bellatrix.SignedBlindedBeaconBlock:
      $ref: './types/bellatrix/block.yaml#/Bellatrix/SignedBlindedBeaconBlock'
    ConsensusVersion:
      type: string
      enum: [phase0, altair, bellatrix, capella, deneb, electra]
      example: "phase0"
    SignedValidatorRegistration:
      $ref: './types/registration.yaml#/SignedValidatorRegistration'
    Capella.BeaconState:
      $ref: './types/capella/state.yaml#/Capella/BeaconState'
    Capella.BeaconBlock:
      $ref: './types/capella/block.yaml#/Capella/BeaconBlock'
    Capella.SignedBeaconBlock:
      $ref: './types/capella/block.yaml#/Capella/SignedBeaconBlock'
    Capella.BlindedBeaconBlock:
      $ref: './types/capella/block.yaml#/Capella/BlindedBeaconBlock'
    Capella.SignedBlindedBeaconBlock:
      $ref: './types/capella/block.yaml#/Capella/SignedBlindedBeaconBlock'
    Capella.LightClientBootstrap:
      $ref: './types/capella/light_client.yaml#/Capella/LightClientBootstrap'
    Capella.LightClientUpdate:
      $ref: './types/capella/light_client.yaml#/Capella/LightClientUpdate'
    Capella.LightClientFinalityUpdate:
      $ref: './types/capella/light_client.yaml#/Capella/LightClientFinalityUpdate'
    Capella.LightClientOptimisticUpdate:
      $ref: './types/capella/light_client.yaml#/Capella/LightClientOptimisticUpdate'
    Capella.Withdrawal:
      $ref: './types/withdrawal.yaml#/Withdrawal'
    Deneb.BeaconState:
      $ref: './types/deneb/state.yaml#/Deneb/BeaconState'
    Deneb.BeaconBlock:
      $ref: './types/deneb/block.yaml#/Deneb/BeaconBlock'
    Deneb.BlockContents:
      $ref: './types/deneb/block_contents.yaml#/Deneb/BlockContents'
    Deneb.SignedBeaconBlock:
      $ref: './types/deneb/block.yaml#/Deneb/SignedBeaconBlock'
    Deneb.SignedBlockContents:
      $ref: './types/deneb/block_contents.yaml#/Deneb/SignedBlockContents'
    Deneb.BlindedBeaconBlock:
      $ref: './types/deneb/block.yaml#/Deneb/BlindedBeaconBlock'
    Deneb.SignedBlindedBeaconBlock:
      $ref: './types/deneb/block.yaml#/Deneb/SignedBlindedBeaconBlock'
    Deneb.LightClientBootstrap:
      $ref: './types/deneb/light_client.yaml#/Deneb/LightClientBootstrap'
    Deneb.LightClientUpdate:
      $ref: './types/deneb/light_client.yaml#/Deneb/LightClientUpdate'
    Deneb.LightClientFinalityUpdate:
      $ref: './types/deneb/light_client.yaml#/Deneb/LightClientFinalityUpdate'
    Deneb.LightClientOptimisticUpdate:
      $ref: './types/deneb/light_client.yaml#/Deneb/LightClientOptimisticUpdate'
    Blob:
      $ref: './types/primitive.yaml#/Blob'
    Deneb.BlobSidecars:
      $ref: './types/deneb/blob_sidecar.yaml#/Deneb/BlobSidecars'
    Electra.BeaconState:
      $ref: './types/electra/state.yaml#/Electra/BeaconState'
    Electra.BlockContents:
      $ref: './types/electra/block_contents.yaml#/Electra/BlockContents'
    Electra.SignedBeaconBlock:
      $ref: './types/electra/block.yaml#/Electra/SignedBeaconBlock'
    Electra.SignedBlockContents:
      $ref: './types/electra/block_contents.yaml#/Electra/SignedBlockContents'
    Electra.BlindedBeaconBlock:
      $ref: './types/electra/block.yaml#/Electra/BlindedBeaconBlock'
    Electra.SignedBlindedBeaconBlock:
      $ref: './types/electra/block.yaml#/Electra/SignedBlindedBeaconBlock'
    Electra.Attestation:
      $ref: './types/electra/attestation.yaml#/Electra/Attestation'
    Electra.AttesterSlashing:
      $ref: './types/electra/attester_slashing.yaml#/Electra/AttesterSlashing'
    Electra.SignedAggregateAndProof:
      $ref: './types/electra/validator.yaml#/Electra/SignedAggregateAndProof'
    Electra.LightClientBootstrap:
      $ref: './types/electra/light_client.yaml#/Electra/LightClientBootstrap'
    Electra.LightClientUpdate:
      $ref: './types/electra/light_client.yaml#/Electra/LightClientUpdate'
    Electra.LightClientFinalityUpdate:
      $ref: './types/electra/light_client.yaml#/Electra/LightClientFinalityUpdate'
    Electra.LightClientOptimisticUpdate:
      $ref: './types/electra/light_client.yaml#/Electra/LightClientOptimisticUpdate'
    Node:
      $ref: './types/fork_choice.yaml#/Node'
    ExtraData:
      $ref: './types/fork_choice.yaml#/ExtraData'
    SyncCommitteeRewards:
      $ref: './types/rewards.yaml#/SyncCommitteeRewards'
    BlockRewards:
      $ref: './types/rewards.yaml#/BlockRewards'
    AttestationsRewards:
      $ref: './types/rewards.yaml#/AttestationsRewards'

  parameters:
    StateId:
      $ref: './params/index.yaml#/StateId'
    BlockId:
      $ref: './params/index.yaml#/BlockId'
    BlockRoot:
      $ref: './params/index.yaml#/BlockRoot'
    SkipRandaoVerification:
      $ref: './params/index.yaml#/SkipRandaoVerification'

  responses:
    InvalidRequest:
      $ref: './types/http.yaml#/InvalidRequest'
    NotFound:
      $ref: './types/http.yaml#/NotFound'
    NotAcceptable:
      $ref: './types/http.yaml#/NotAcceptable'
    UnsupportedMediaType:
      $ref: './types/http.yaml#/UnsupportedMediaType'
    InternalError:
      $ref: './types/http.yaml#/InternalError'
    NotImplementedError:
      $ref: './types/http.yaml#/NotImplementedError'
    CurrentlySyncing:
      $ref: './types/http.yaml#/CurrentlySyncing'

  headers:
    Eth-Consensus-Version:
      description: |
        The active consensus version to which the data belongs. Required in response so client can deserialize returned json or ssz data 
        more effectively.
      required: true
      schema:
        $ref: '#/components/schemas/ConsensusVersion'
    Eth-Execution-Payload-Blinded:
      description: Required in response so client can deserialize returned json or ssz data to the correct object.
      required: true
      schema:
        type: boolean
    Eth-Execution-Payload-Value:
      description: |
        Execution payload value in Wei. Required in response so client can determine relative value
        of execution payloads.
      required: true
      schema:
        $ref: './types/primitive.yaml#/Wei'
    Eth-Consensus-Block-Value:
      description: |
        Consensus rewards paid to the proposer for this block, in Wei. Required in response so
        client can determine relative value of consensus blocks.
      required: true
      schema:
        $ref: './types/primitive.yaml#/Wei'