Asset Management12

Audit Logs1

Bitcoin3

Chain Agnostic2

cosigner9

Crypto Fraud Prevention1

Ecosystem Incident Subscriptions5

Enrichment3

EVM14

external1

external api integrations2

Hedera2

Metrics5

Monitors5

Organization Risk Config2

Report3

Scan Feedback1

Site2

Solana3

Starknet2

Stellar3

Sui3

token1

Token11

Tron2

cosigner

Get Cosigner External Route

Fetch a cosigner by ID.

get/v0/platform/cosigners/{id}

Path parameters

idstring required

Response

Successful Response

tagsstring[] required

idstring required

The Cosigner's assigned unique ID.

namestring nullable required

The Cosigner name as defined upon creation.

status'pending' | 'ok' | 'error' required

The current status of the Cosigner.

ok - The Cosigner is active.
pending - The Cosigner is waiting for the final activation steps in the multisig wallet to be completed.
error - Something went wrong and the Cosigner is not working properly.

fallback_behavior'reject' | 'approve' | 'manual_review' required

The outcome when a transaction passes the Blockaid detection engine but no configured policy matches.

reject - Rejects the transaction. Default.
approve - Approves the transaction.
manual_review - Sends the transaction to the Pending Transactions queue for manual review.

errorstring nullable

If the Cosigner status is error, this field will show more information about the error.

created_atstring date-time required

The timestamp the Cosigner was created.

updated_atstring date-time required

updated_bystring nullable required

The user who last updated the Cosigner.

created_bystring required

selected_chainsstring[] nullable

Changes

Changed in 4 of the 95 revisions of this API.31149

Jul 23, 20266941029c0ca91021See the full diff
- ▲
  the response property data/oneOf[subschema #1: FireblocksCosignerResponseExternal]/security_policy became optional for the status 200
  response-property-became-optional
- ▲
  the response property data/oneOf[subschema #2: FordefiCosignerResponseExternal]/security_policy became optional for the status 200
  response-property-became-optional
- ▲
  the response property data/oneOf[subschema #3: CosignerSafeResponseExternal]/security_policy became optional for the status 200
  response-property-became-optional
- ▲
  the response property data/oneOf[subschema #4: CosignerSquadsResponseExternal]/security_policy became optional for the status 200
  response-property-became-optional
- ▲
  the response property data/oneOf[subschema #5: UtilaCosignerResponseExternal]/security_policy became optional for the status 200
  response-property-became-optional
- ▲
  the data/oneOf[subschema #1: FireblocksCosignerResponseExternal]/security_policy response's property type/format changed from string/ to / for status 200
  response-property-type-changed
- ▲
  the data/oneOf[subschema #2: FordefiCosignerResponseExternal]/security_policy response's property type/format changed from string/ to / for status 200
  response-property-type-changed
- ▲
  the data/oneOf[subschema #3: CosignerSafeResponseExternal]/security_policy response's property type/format changed from string/ to / for status 200
  response-property-type-changed
- ▲
  the data/oneOf[subschema #4: CosignerSquadsResponseExternal]/security_policy response's property type/format changed from string/ to / for status 200
  response-property-type-changed
- ▲
  the data/oneOf[subschema #5: UtilaCosignerResponseExternal]/security_policy response's property type/format changed from string/ to / for status 200
  response-property-type-changed
- ○
  added ExternalPolicyOption subschema #2 to the data/oneOf[subschema #1: FireblocksCosignerResponseExternal]/security_policy response property anyOf list for the response status 200
  response-property-any-of-added
- ○
  added ExternalPolicyOption subschema #2 to the data/oneOf[subschema #2: FordefiCosignerResponseExternal]/security_policy response property anyOf list for the response status 200
  response-property-any-of-added
- ○
  added ExternalPolicyOption subschema #2 to the data/oneOf[subschema #3: CosignerSafeResponseExternal]/security_policy response property anyOf list for the response status 200
  response-property-any-of-added
- ○
  added ExternalPolicyOption subschema #2 to the data/oneOf[subschema #4: CosignerSquadsResponseExternal]/security_policy response property anyOf list for the response status 200
  response-property-any-of-added
- ○
  added ExternalPolicyOption subschema #2 to the data/oneOf[subschema #5: UtilaCosignerResponseExternal]/security_policy response property anyOf list for the response status 200
  response-property-any-of-added
- ○
  response property data/oneOf[subschema #1: FireblocksCosignerResponseExternal]/security_policy deprecated
  response-property-deprecated
- ○
  response property data/oneOf[subschema #2: FordefiCosignerResponseExternal]/security_policy deprecated
  response-property-deprecated
- ○
  response property data/oneOf[subschema #3: CosignerSafeResponseExternal]/security_policy deprecated
  response-property-deprecated
- ○
  response property data/oneOf[subschema #4: CosignerSquadsResponseExternal]/security_policy deprecated
  response-property-deprecated
- ○
  response property data/oneOf[subschema #5: UtilaCosignerResponseExternal]/security_policy deprecated
  response-property-deprecated
- ○
  removed the advanced_control_policy enum value from the data/oneOf[subschema #1: FireblocksCosignerResponseExternal]/security_policy response property for the response status 200
  response-property-enum-value-removed
- ○
  removed the advanced_control_policy enum value from the data/oneOf[subschema #2: FordefiCosignerResponseExternal]/security_policy response property for the response status 200
  response-property-enum-value-removed
- ○
  removed the advanced_control_policy enum value from the data/oneOf[subschema #3: CosignerSafeResponseExternal]/security_policy response property for the response status 200
  response-property-enum-value-removed
- ○
  removed the advanced_control_policy enum value from the data/oneOf[subschema #4: CosignerSquadsResponseExternal]/security_policy response property for the response status 200
  response-property-enum-value-removed
- ○
  removed the advanced_control_policy enum value from the data/oneOf[subschema #5: UtilaCosignerResponseExternal]/security_policy response property for the response status 200
  response-property-enum-value-removed
- ○
  removed the blockaid_ootb_policy enum value from the data/oneOf[subschema #1: FireblocksCosignerResponseExternal]/security_policy response property for the response status 200
  response-property-enum-value-removed
- ○
  removed the blockaid_ootb_policy enum value from the data/oneOf[subschema #2: FordefiCosignerResponseExternal]/security_policy response property for the response status 200
  response-property-enum-value-removed
- ○
  removed the blockaid_ootb_policy enum value from the data/oneOf[subschema #3: CosignerSafeResponseExternal]/security_policy response property for the response status 200
  response-property-enum-value-removed
- ○
  removed the blockaid_ootb_policy enum value from the data/oneOf[subschema #4: CosignerSquadsResponseExternal]/security_policy response property for the response status 200
  response-property-enum-value-removed
- ○
  removed the blockaid_ootb_policy enum value from the data/oneOf[subschema #5: UtilaCosignerResponseExternal]/security_policy response property for the response status 200
  response-property-enum-value-removed
- ○
  added the required property fallback_behavior to the response with the 200 status
  response-required-property-added
Jun 16, 2026187d6a5259c61See the full diff
- ○
  the endpoint scheme security JWT was added to the API
  api-security-added
This revision also has 1 change that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog
Jun 8, 202603ea93e2f60821126See the full diff
- ▲
  response property updated_by list-of-types was widened by adding types null to media type application/json of response 200
  response-property-list-of-types-widened
- ▲
  removed the required property added_by from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property approval_actions/items/oneOf[subschema #2: SlackExternalAction]/channel_ids from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #1: FireblocksCosignerResponseExternal]/security_mode from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #1: FireblocksCosignerResponseExternal]/signing_mode from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #1: FireblocksCosignerResponseExternal]/unsupported_chains_fallback_policy from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #2: FordefiCosignerResponseExternal]/security_mode from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #2: FordefiCosignerResponseExternal]/signing_mode from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #2: FordefiCosignerResponseExternal]/unsupported_chains_fallback_policy from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #3: CosignerSafeResponseExternal]/safe_address from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #3: CosignerSafeResponseExternal]/security_mode from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #3: CosignerSafeResponseExternal]/signing_mode from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #4: CosignerSquadsResponseExternal]/security_mode from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #4: CosignerSquadsResponseExternal]/signing_mode from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #4: CosignerSquadsResponseExternal]/squads_address from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #5: UtilaCosignerResponseExternal]/security_mode from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #5: UtilaCosignerResponseExternal]/signing_mode from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property data/oneOf[subschema #5: UtilaCosignerResponseExternal]/unsupported_chains_fallback_policy from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property malicious_actions/anyOf[subschema #1]/items/oneOf[subschema #2: SlackExternalAction]/channel_ids from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property proposal_actions/items/oneOf[subschema #2: SlackExternalAction]/channel_ids from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property rejection_actions/items/oneOf[subschema #2: SlackExternalAction]/channel_ids from the response with the 200 status
  response-required-property-removed
- ●
  added the new all_vaults enum value to the data/oneOf[subschema #2: FordefiCosignerResponseExternal]/scope response property for the response status 200
  response-property-enum-value-added
- ○
  added the optional property data/oneOf[subschema #1: FireblocksCosignerResponseExternal]/chains to the response with the 200 status
  response-optional-property-added
- ○
  added the optional property data/oneOf[subschema #2: FordefiCosignerResponseExternal]/chains to the response with the 200 status
  response-optional-property-added
- ○
  added the optional property data/oneOf[subschema #5: UtilaCosignerResponseExternal]/chains to the response with the 200 status
  response-optional-property-added
- ○
  added the optional property selected_chains to the response with the 200 status
  response-optional-property-added
- ○
  the response property data/oneOf[subschema #3: CosignerSafeResponseExternal]/override_address became required for the status 200
  response-property-became-required
- ○
  removed the all_workspace enum value from the data/oneOf[subschema #2: FordefiCosignerResponseExternal]/scope response property for the response status 200
  response-property-enum-value-removed
- ○
  added the required property approval_actions/items/oneOf[subschema #2: SlackExternalAction]/channels to the response with the 200 status
  response-required-property-added
- ○
  added the required property created_by to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #1: FireblocksCosignerResponseExternal]/involvement_level to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #1: FireblocksCosignerResponseExternal]/security_policy to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #1: FireblocksCosignerResponseExternal]/unsupported_chain_behavior to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #2: FordefiCosignerResponseExternal]/involvement_level to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #2: FordefiCosignerResponseExternal]/security_policy to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #2: FordefiCosignerResponseExternal]/unsupported_chain_behavior to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #3: CosignerSafeResponseExternal]/involvement_level to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #3: CosignerSafeResponseExternal]/security_policy to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #3: CosignerSafeResponseExternal]/wallet_address to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #4: CosignerSquadsResponseExternal]/involvement_level to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #4: CosignerSquadsResponseExternal]/security_policy to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #4: CosignerSquadsResponseExternal]/wallet_address to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #5: UtilaCosignerResponseExternal]/involvement_level to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #5: UtilaCosignerResponseExternal]/security_policy to the response with the 200 status
  response-required-property-added
- ○
  added the required property data/oneOf[subschema #5: UtilaCosignerResponseExternal]/unsupported_chain_behavior to the response with the 200 status
  response-required-property-added
- ○
  added the required property malicious_actions/anyOf[subschema #1]/items/oneOf[subschema #2: SlackExternalAction]/channels to the response with the 200 status
  response-required-property-added
- ○
  added the required property proposal_actions/items/oneOf[subschema #2: SlackExternalAction]/channels to the response with the 200 status
  response-required-property-added
- ○
  added the required property rejection_actions/items/oneOf[subschema #2: SlackExternalAction]/channels to the response with the 200 status
  response-required-property-added
May 4, 20267edcbad717e51See the full diff
- ○
  added the optional property malicious_actions to the response with the 200 status
  response-optional-property-added

Of the 95 revisions, 1 has no diff computed.

Full history