Farcaster API V2
- User
- Signer
- Cast
- Feed
- Reaction
- Notifications
- Channel
- Follows
- Storage
- Frame
- Agents
- GETCast conversation summary
- GETUser interactions
- Dynamic Transaction Frames
- GET
- Fname
- Webhook
- Action
- Mute
- Block
- Ban
- Onchain
- Login
- Metrics
Onchain
Farcaster Hub API
- Info
- Casts
- Reactions
- Links
- UserData
- Fids
- Storage
- Usernames
- Verifications
- OnChainEvents
- Message
- HubEvents
Neynar SDK
- Getting Started with Neynar NodeJS SDK
- SDK v1 to v2 migration guide
Cast conversation summary
Generates a summary of all casts related to a conversation surrounding a cast by passing in a cast hash or Warpcast URL. Summary is generated by an LLM and is intended to be passed as a context to AI agents.
curl --request GET \
--url https://api.neynar.com/v2/farcaster/cast/conversation/summary \
--header 'x-api-key: <api-key>'
{
"summary": {
"text": "<string>",
"participants": [
{
"object": "user",
"fid": 3,
"username": "<string>",
"display_name": "<string>",
"custody_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
"pfp_url": "<string>",
"profile": {
"bio": {
"text": "<string>",
"mentioned_profiles": [
{
"object": "user_dehydrated",
"fid": 3,
"username": "<string>",
"display_name": "<string>",
"pfp_url": "<string>",
"custody_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7"
}
],
"mentioned_profiles_ranges": [
{
"start": 1,
"end": 1
}
],
"mentioned_channels": [
{
"id": "<string>",
"name": "<string>",
"object": "channel_dehydrated",
"image_url": "<string>",
"viewer_context": {
"following": true,
"role": "member"
}
}
],
"mentioned_channels_ranges": [
{
"start": 1,
"end": 1
}
]
},
"location": {
"latitude": 0,
"longitude": 0,
"address": {
"city": "<string>",
"state": "<string>",
"state_code": "<string>",
"country": "<string>",
"country_code": "<string>"
}
}
},
"follower_count": 123,
"following_count": 123,
"verifications": [
"0x5a927ac639636e534b678e81768ca19e2c6280b7"
],
"verified_addresses": {
"eth_addresses": [
"0x5a927ac639636e534b678e81768ca19e2c6280b7"
],
"sol_addresses": [
"<string>"
],
"primary": {
"eth_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
"sol_address": "<string>"
}
},
"verified_accounts": [
{
"platform": "x",
"username": "<string>"
}
],
"power_badge": true,
"experimental": {
"neynar_user_score": 123
},
"viewer_context": {
"following": true,
"followed_by": true,
"blocking": true,
"blocked_by": true
}
}
],
"mentioned_profiles": [
{
"object": "user",
"fid": 3,
"username": "<string>",
"display_name": "<string>",
"custody_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
"pfp_url": "<string>",
"profile": {
"bio": {
"text": "<string>",
"mentioned_profiles": [
{
"object": "user_dehydrated",
"fid": 3,
"username": "<string>",
"display_name": "<string>",
"pfp_url": "<string>",
"custody_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7"
}
],
"mentioned_profiles_ranges": [
{
"start": 1,
"end": 1
}
],
"mentioned_channels": [
{
"id": "<string>",
"name": "<string>",
"object": "channel_dehydrated",
"image_url": "<string>",
"viewer_context": {
"following": true,
"role": "member"
}
}
],
"mentioned_channels_ranges": [
{
"start": 1,
"end": 1
}
]
},
"location": {
"latitude": 0,
"longitude": 0,
"address": {
"city": "<string>",
"state": "<string>",
"state_code": "<string>",
"country": "<string>",
"country_code": "<string>"
}
}
},
"follower_count": 123,
"following_count": 123,
"verifications": [
"0x5a927ac639636e534b678e81768ca19e2c6280b7"
],
"verified_addresses": {
"eth_addresses": [
"0x5a927ac639636e534b678e81768ca19e2c6280b7"
],
"sol_addresses": [
"<string>"
],
"primary": {
"eth_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
"sol_address": "<string>"
}
},
"verified_accounts": [
{
"platform": "x",
"username": "<string>"
}
],
"power_badge": true,
"experimental": {
"neynar_user_score": 123
},
"viewer_context": {
"following": true,
"followed_by": true,
"blocking": true,
"blocked_by": true
}
}
]
}
}
Authorizations
API key to authorize requests
Query Parameters
Cast identifier (Its either a url or a hash)
Number of casts to consider in a summary up to a point of target cast
1 <= x <= 50
Additional prompt used to generate a summary
Response
Summary generated by an LLM
Users who casted in a conversation thread
user
The unique identifier of a farcaster user (unsigned integer)
3
Ethereum address
"0x5a927ac639636e534b678e81768ca19e2c6280b7"
Positions within the text (inclusive start, exclusive end) where each mention occurs. Each index within this list corresponds to the same-numbered index in the mentioned_profiles list.
Positions within the text (inclusive start, exclusive end) where each mention occurs. Each index within this list corresponds to the same-numbered index in the mentioned_channels list.
The number of followers the user has.
The number of users the user is following.
Ethereum address
List of verified Ethereum addresses of the user sorted by oldest to most recent.
Ethereum address
List of verified Solana addresses of the user sorted by oldest to most recent.
Solana address
The URL of the user's profile picture
Score that represents the probability that the account is not spam.
Adds context on the viewer's follow relationship with the user.
Indicates if the viewer is following the user.
Indicates if the viewer is followed by the user.
Indicates if the viewer is blocking the user.
Indicates if the viewer is blocked by the user.
Users who were mentioned in a conversation thread
user
The unique identifier of a farcaster user (unsigned integer)
3
Ethereum address
"0x5a927ac639636e534b678e81768ca19e2c6280b7"
Positions within the text (inclusive start, exclusive end) where each mention occurs. Each index within this list corresponds to the same-numbered index in the mentioned_profiles list.
Positions within the text (inclusive start, exclusive end) where each mention occurs. Each index within this list corresponds to the same-numbered index in the mentioned_channels list.
Coordinates and place names for a location
The number of followers the user has.
The number of users the user is following.
Ethereum address
List of verified Ethereum addresses of the user sorted by oldest to most recent.
Ethereum address
List of verified Solana addresses of the user sorted by oldest to most recent.
Solana address
The URL of the user's profile picture
Score that represents the probability that the account is not spam.
Adds context on the viewer's follow relationship with the user.
Indicates if the viewer is following the user.
Indicates if the viewer is followed by the user.
Indicates if the viewer is blocking the user.
Indicates if the viewer is blocked by the user.
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curl --request GET \
--url https://api.neynar.com/v2/farcaster/cast/conversation/summary \
--header 'x-api-key: <api-key>'
{
"summary": {
"text": "<string>",
"participants": [
{
"object": "user",
"fid": 3,
"username": "<string>",
"display_name": "<string>",
"custody_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
"pfp_url": "<string>",
"profile": {
"bio": {
"text": "<string>",
"mentioned_profiles": [
{
"object": "user_dehydrated",
"fid": 3,
"username": "<string>",
"display_name": "<string>",
"pfp_url": "<string>",
"custody_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7"
}
],
"mentioned_profiles_ranges": [
{
"start": 1,
"end": 1
}
],
"mentioned_channels": [
{
"id": "<string>",
"name": "<string>",
"object": "channel_dehydrated",
"image_url": "<string>",
"viewer_context": {
"following": true,
"role": "member"
}
}
],
"mentioned_channels_ranges": [
{
"start": 1,
"end": 1
}
]
},
"location": {
"latitude": 0,
"longitude": 0,
"address": {
"city": "<string>",
"state": "<string>",
"state_code": "<string>",
"country": "<string>",
"country_code": "<string>"
}
}
},
"follower_count": 123,
"following_count": 123,
"verifications": [
"0x5a927ac639636e534b678e81768ca19e2c6280b7"
],
"verified_addresses": {
"eth_addresses": [
"0x5a927ac639636e534b678e81768ca19e2c6280b7"
],
"sol_addresses": [
"<string>"
],
"primary": {
"eth_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
"sol_address": "<string>"
}
},
"verified_accounts": [
{
"platform": "x",
"username": "<string>"
}
],
"power_badge": true,
"experimental": {
"neynar_user_score": 123
},
"viewer_context": {
"following": true,
"followed_by": true,
"blocking": true,
"blocked_by": true
}
}
],
"mentioned_profiles": [
{
"object": "user",
"fid": 3,
"username": "<string>",
"display_name": "<string>",
"custody_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
"pfp_url": "<string>",
"profile": {
"bio": {
"text": "<string>",
"mentioned_profiles": [
{
"object": "user_dehydrated",
"fid": 3,
"username": "<string>",
"display_name": "<string>",
"pfp_url": "<string>",
"custody_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7"
}
],
"mentioned_profiles_ranges": [
{
"start": 1,
"end": 1
}
],
"mentioned_channels": [
{
"id": "<string>",
"name": "<string>",
"object": "channel_dehydrated",
"image_url": "<string>",
"viewer_context": {
"following": true,
"role": "member"
}
}
],
"mentioned_channels_ranges": [
{
"start": 1,
"end": 1
}
]
},
"location": {
"latitude": 0,
"longitude": 0,
"address": {
"city": "<string>",
"state": "<string>",
"state_code": "<string>",
"country": "<string>",
"country_code": "<string>"
}
}
},
"follower_count": 123,
"following_count": 123,
"verifications": [
"0x5a927ac639636e534b678e81768ca19e2c6280b7"
],
"verified_addresses": {
"eth_addresses": [
"0x5a927ac639636e534b678e81768ca19e2c6280b7"
],
"sol_addresses": [
"<string>"
],
"primary": {
"eth_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
"sol_address": "<string>"
}
},
"verified_accounts": [
{
"platform": "x",
"username": "<string>"
}
],
"power_badge": true,
"experimental": {
"neynar_user_score": 123
},
"viewer_context": {
"following": true,
"followed_by": true,
"blocking": true,
"blocked_by": true
}
}
]
}
}