# Neynar

**Canonical:** https://apis.io/providers/neynar/  
**Website:** https://neynar.com  
**APIs profiled:** 39

Neynar is the complete Farcaster developer platform providing infrastructure REST APIs for querying casts, channels, user profiles, feeds, reactions, and building applications on the Farcaster decentralized social protocol. As of January 2026, Neynar acquired Farcaster from Merkle Manufactures, taking operational responsibility for the protocol, client, and related infrastructure.

## Kin Score — 36.1 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 36.1).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 66.1 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 14.3 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

## Agent readiness — 51.7 (agent-native)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | verified |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | verified |
| Error Semantics | verified |
| OpenAPI Examples | partial |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (39)

- **Neynar Action API** — Securely communicate and perform actions on behalf of users across different apps
- **Neynar Agents API** — Operations for building AI agents
- **Neynar App Host API** — Operations related to mini app host notifications
- **Neynar AuthAddress API** — The AuthAddress API from Neynar — 2 operation(s) for authaddress.
- **Neynar Ban API** — Operations related to a ban
- **Neynar Block API** — Operations related to a block
- **Neynar Cast API** — Operations related to cast
- **Neynar Casts API** — Operations related to casts.
- **Neynar Channel API** — Operations related to channels
- **Neynar Feed API** — Operations related to feed
- **Neynar Fids API** — Operations related to FIDs.
- **Neynar fname API** — Operations related to fname
- **Neynar Follows API** — Operations related to follows
- **Neynar Frame API** — Operations related to mini apps
- **Neynar HubEvents API** — Operations related to hub events.
- **Neynar Info API** — Operations related to hub information.
- **Neynar Links API** — Operations related to links.
- **Neynar Login API** — Operations related to login
- **Neynar Message API** — Operations related to messages.
- **Neynar Metrics API** — Operations related to retrieving metrics
- **Neynar Mute API** — Operations related to a mute
- **Neynar Notifications API** — Operations related to notifications
- **Neynar Onchain API** — Operations related to onchain data
- **Neynar OnChainEvents API** — Operations related to on-chain events.
- **Neynar organization API** — The organization API from Neynar — 1 operation(s) for organization.
- **Neynar portal API** — The portal API from Neynar — 3 operation(s) for portal.
- **Neynar Reaction API** — Operations related to reaction
- **Neynar Reactions API** — Operations related to reactions.
- **Neynar Signer API** — Operations related to signer
- **Neynar Storage API** — Operations related to storage
- **Neynar studio API** — The studio API from Neynar — 32 operation(s) for studio.
- **Neynar Subscribers API** — Operations related to a subscriptions
- **Neynar subscription API** — The subscription API from Neynar — 2 operation(s) for subscription.
- **Neynar Topic API** — The Topic API from Neynar — 1 operation(s) for topic.
- **Neynar User API** — Operations related to user
- **Neynar UserData API** — Operations related to user data.
- **Neynar Usernames API** — Operations related to usernames.
- **Neynar Verifications API** — Operations related to verifications.
- **Neynar Webhook API** — Operations related to a webhook

## Agentic access (1)

- **Neynar Agentic Access** — 200 operations · 71 acting · 1 human-in-the-loop

## Security (2)

- **Neynar Authentication** — apiKey · 1 scheme
- **Neynar Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Plans (1)

- **Plans**

## Tags

Farcaster, Social, Decentralized, Web3, Blockchain, Social Graph, Casts, Channels, Feeds, Reactions, Notification, Webhook, Onchain

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/neynar/). Scores are computed from the provider's own public artifacts under a published rubric.