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POST
/
v2
/
farcaster
/
block
Block FID
curl --request POST \
  --url https://api.neynar.com/v2/farcaster/block/ \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "blocked_fid": 3,
  "signer_uuid": "19d0c5fd-9b33-4a48-a0e2-bc7b0555baec"
}
'
{
  "message": "<string>",
  "success": true
}

Documentation Index

Fetch the complete documentation index at: https://docs.neynar.com/llms.txt

Use this file to discover all available pages before exploring further.

​
Node.js SDK

🔗 SDK Method: publishBlock Use this API endpoint with the Neynar Node.js SDK for typed responses and better developer experience.

Authorizations

​
x-api-key
string
header
default:NEYNAR_API_DOCS
required

API key to authorize requests

Body

application/json
​
blocked_fid
integer<int32>
required

The unique identifier of a farcaster user or app (unsigned integer)

Required range: x >= 0
Example:

3

​
signer_uuid
string
required

UUID of the signer. signer_uuid is paired with API key, can't use a uuid made with a different API key.

Example:

"19d0c5fd-9b33-4a48-a0e2-bc7b0555baec"

Response

Success

​
message
string
​
success
boolean