Instagram MCP Server

Instructions

Implementation Reference

• src/index.ts:412-420 (handler)

  Handler for the 'send_reaction' tool in the main switch statement within CallToolRequestSchema handler. Parses input using SendReactionSchema and calls api.sendMessageReaction.

  case 'send_reaction': {
    const params = SendReactionSchema.parse(args);
    result = await api.sendMessageReaction(
      params.recipientId,
      params.messageId,
      params.reaction
    );
    break;
  }

• src/index.ts:57-61 (schema)

  Zod schema for validating input parameters of the send_reaction tool: recipientId, messageId, reaction.

  const SendReactionSchema = z.object({
    recipientId: z.string(),
    messageId: z.string(),
    reaction: z.string()
  });

• src/index.ts:120-132 (registration)

  Tool registration in the ListToolsRequestSchema response, defining name, description, and inputSchema matching the Zod schema.

  {
    name: 'send_reaction',
    description: 'Send a reaction to a message on Instagram',
    inputSchema: {
      type: 'object',
      properties: {
        recipientId: { type: 'string', description: 'The user ID' },
        messageId: { type: 'string', description: 'The message ID to react to' },
        reaction: { type: 'string', description: 'Reaction type (e.g., love, like, haha, wow, sad, angry)' }
      },
      required: ['recipientId', 'messageId', 'reaction']
    }
  },

• src/facebook-api.ts:145-162 (helper)

  Core helper function that performs the actual API call to send a reaction to a message via Facebook Graph API.

  export async function sendMessageReaction(
    recipientId: string,
    messageId: string,
    reaction: string
  ): Promise<any> {
    return makeApiCall({
      method: 'POST',
      endpoint: `/me/messages`,
      data: {
        recipient: { id: recipientId },
        sender_action: 'react',
        payload: {
          message_id: messageId,
          reaction
        }
      }
    });
  }